A pulses update for southern NSW 2017

Key messages

  • Paddock selection is a critical management factor for growing pulse crops.
  • Maintain soil pHCa above 5.5 in the top 0-10cm to maximise plant health and potential grain yield.
  • Sowing within the recommended sowing window is critical on acidic soils of southern NSW.
  • Follow herbicide label recommendations for in-crop use and importantly plant back periods.
  • Choose a variety based on yield ranking, disease resistance, seed size, and marketability in your area.
  • Sow germination-tested, high quality seed at the recommended target plant densities.
  • Increase target plant densities when sowing late in the sowing window.
  • Follow disease management guidelines for southern NSW.
  • Maximise the potential for nitrogen (N) fixation through effective inoculation techniques.
  • Prices can be volatile, therefore the benefits of pulses should be viewed across the rotation and the whole farming system.

Overview of pulses

Pulse crop research based at the Wagga Wagga Agricultural Institute covers all aspects of pulse growing, from breeding and variety evaluation, to applied agronomy research. The aim is to improve adaptation, plant architecture, yield, disease resistance and seed quality of five winter pulses — field peas, lupins, chickpeas, faba beans and lentils. Only lupins, faba beans and lentils will be reported on in this paper.

Variety evaluation and agronomic experiments with faba beans, lupins, lentils, chickpeas and field peas were undertaken in 2016 as part of national pulse breeding programs and related projects. This research aims to strengthen the profitability and resilience of the  southern NSW farming system, by making the pulse phase more reliable and profitable, and providing nitrogen (N), disease breaks and other rotational benefits to cereal and canola crops in the rotation. All results were not available at the time of writing and will be published in the NSW DPI Southern NSW Research Results 2016 publication.   

Most pulse production in southern NSW occurs on acidic soils where pH stratification can have production impacts. Therefore, readers are directed to the Burns et al. (2017) report in these proceedings, ‘Topsoil pH stratification impacts on pulse production in SE Australia’. The results presented indicate that root growth, nodulation, plant vigour and N2 fixation potential of acid-sensitive pulses are adversely affected by pH with moderately (pHCa 4.6–5.0) and severely (pHCa <4.5) acidic layers in the top 5-20cm of soil.

Despite a very wet season across southern NSW, 2016 was generally a very successful year for pulses, particularly on the better drained slopes country that avoided severe waterlogging and where disease management programs could be implemented effectively. In general, growing season rainfall (GSR) (April–October) across southern NSW was approximately   80% to 90% above average, ranging from 625mm at Wagga Wagga in the east to 517mm at Rankins Springs in the western cropping area. Ideal growing conditions throughout the season on well drained country and particularly during the flowering and pod fill period contributed to high yielding pulse crops. 

Faba bean update

Background

A large portion of the dryland and irrigated grain growing areas in southern NSW are well suited to faba beans. In 2016, faba beans showed to be the pulse best adapted to withstand short to moderate periods of waterlogging. However, faba beans are best suited to well drained, deep, neutral–alkaline, well-structured soils with no subsoil constraints. Avoid shallow depth, acidic (pHCa <5.2) or very light to sandy-textured soils. 

Aims

Two 2016 experiments aimed to compare growth, development and yield of current commercial faba bean varieties and advanced breeding lines at three times of sowing (28 April, 17 May and 2 June) at Wagga Wagga and two sowing times (28 April, 18 May) at Lockhart. 

The data collected will be used to confirm and update current agronomic recommendations for faba beans in this region.

Key findings at Wagga Wagga

  • 2016 results support previous work showing the importance of sowing within the recommended sowing window.
  • The optimum time to sow faba beans at Wagga Wagga in 2016 was late April–mid May.
  • There was a 12% yield penalty when sowing was delayed from 17 May to 2 Jun (Figure 1).
  • Average seed weight reduced by 8.6% from 28 April to 2 June sowing.
  • PBA Nasma, PBA Samira  and PBA Zahra were the highest yielding commercial varieties.
  • The advanced breeding lines of AF10089 and AF09169 were significantly higher yielding than all other varieties, particularly at the 28 April sowing date.

Key findings at Lockhart

  • Across all varieties tested there was no significant response to sowing time, which validates the current sowing window recommendation, therefore the optimum time to sow faba beans at Lockhart in 2016 was late April–mid May.
  • PBA Nasma, PBA Samira, PBA Zahra, Farah and Fiesta VF were the highest yielding commercial varieties (Figure 2).
  • The advanced breeding lines of AF10089 and AF09169 were significantly higher yielding than all other varieties.
  • AF09169 was the only variety to yield significantly higher at the first sowing time, by 22%. This variety was observed with lower comparative biomass at the second sowing time.
  • PBA Samira and Nura yielded significantly higher at the second sowing time. 
  • Very high biomass levels at 28 April sowing contributed to severe lodging and higher disease levels.
  • Crop lodging was significantly less at the 18 May sowing time.
  • PBA Nasma flowered 17 and 14 days earlier than PBA Samira and PBA Zahra at first sowing and eight and six days earlier at second sowing. 

Graph showing grain yield of eight faba bean varieties sown at three dates at Wagga Wagga in 2016

Figure 1. Grain yield of eight faba bean varieties sown at three dates at Wagga Wagga in 2016 (column on left is earliest sowing date)

Graph showing grain yield of eight faba bean varieties sown at two dates at Lockhart in 2016

Figure 2. Grain yield of eight faba bean varieties sown at two dates at Lockhart in 2016 (column on left is earliest sowing date).

Faba bean key messages

Sowing time

  • Our results show that sowing time is the most critical management factor for faba bean production in southern NSW even in favourable springs with high rainfall. Sow from 20 April to 15 May in this region. Aim for the first half of this window, especially in western areas. This maximises yield in crops that produce 6-10t/ha dry matter (DM) with harvest indexes (H.I. %) of 30%-35%. 
  • Crops have been successfully grown when sown up to a week earlier than  20 April. However, this increases the risk of yield loss from both frost damage and disease due to increased biomass under favourable, mild winter growing conditions. In contrast, sowing later than the sowing window can expose the slower-maturing crop to moisture and heat stress at the end of the season, resulting in shorter plants, reduced biomass and number of flowering nodes, fewer pods, lower height of bottom pods, harvest difficulties and low yields.

Seeding rate

  • A target plant establishment of 20-35 plants/m2 is recommended for southern dryland and 20-30 plants/m2 for southern irrigated faba bean crops. However, if sowing later in the sowing window, it becomes important to increase seeding rates to 30-40 plants/m2 to maximise yield potential in a short spring. 

Variety

  • Choice of variety is based on yield ranking, seed size, disease resistance and marketability.
  • PBA Samira and PBA Zahra are recent releases and higher yielding than Farah and Fiesta VF. Both have good resistance to ascochyta and are less susceptible to chocolate spot and rust than Fiesta and Farah. The main difference between the two is seed size — PBA Samira has smaller seeds than PBA Zahra (60-65g/100 seeds compared with 65-75g/100 seeds). Depending on sowing equipment, PBA Samira may be easier to sow because of its smaller seeds.
  • PBA Zahra and PBA Samira have good early vigour and high biomass compared with other varieties. PBA Rana is lower yielding, most likely the result of its marginally longer growing season and later flowering compared with the other varieties. This is a disadvantage in short, dry springs.
  • PBA Nasma is a variety released for northern NSW which has performed very well in the south in recent seasons. Whilst it is susceptible to both chocolate spot and ascochyta blight, it appears that if current disease management guidelines are followed, it has high grain yield potential in southern NSW. Research has shown that PBA Nasma has a significantly longer flowering period than PBA Samira and PBA Zahra. This wide flowering window results in a significantly larger number of podding nodes, and therefore potentially higher yield, and some insurance against environmental extremes during flowering. PBA Nasma displays strong lodging resistance compared to PBA Samira in high biomass situations. This characteristic enables more effective fungicide penetration and potential for improved disease control.

Graph showing national Variety Trials (NVT) Long Term Results (2008-15) for faba beans in the south eastern portion of southern NSW cropping zone

Figure 3. National Variety Trials (NVT) Long Term Results (2008-15) for faba beans in the south eastern portion of southern NSW cropping zone. Yields are presented as a percentage of the site mean yield. 


Conclusion

Faba bean research in southern NSW is providing evidence to continually update and establish improved agronomic guidelines and management practices for growers and advisers. As southern NSW is in the cross-over zone for northern and southern varieties, further research is required to understand and identify the ideal phenotypic characteristics required to maximise profitability in this environment. 

Consideration of guidelines for variety selection, paddock selection, time of sowing, weed control, disease management and harvest timing, as well as strategic marketing, will enable growers to include faba beans as a profitable pulse option in their farming system.

Lentil update

Background

Lentil is a superior pulse often attracting a premium price over other pulse crops due to its consumption by humans. Most pulses (and their associated symbiotic rhizobia) prefer neutral to alkaline soils. Lentil growth, development and rhizobia survival can be affected when soil pHCa drops below 5.2. Lentil varieties have vastly improved over the past decade due to breeding efforts by Pulse Breeding Australia (PBA). New varieties with improved vigour, height, disease resistance, pod-shatter resistance and yield are now available. To complement these new varieties, agronomic management guidelines are being developed specifically for southern NSW soils and environments. Research into the specific agronomic management of sowing time and seeding rate is increasing the potential of lentil crops.   This new generation of varieties, agronomic management and technical support have generated renewed interest in the crop in southern NSW and areas are expanding. 

Key messages

  • Lentils have been grown successfully in southern NSW.
  • Paddock selection is critical in terms of pH, drainage, herbicide residues, vetch, weeds and stones.
  • Sowing time is critical.
  • Sow lentils from late April to mid-May in the western cropping region of southern NSW.
  • Sow lentils early to late May in the eastern cropping region of southern NSW.
  • Target establishment densities of 120 plants/m2.
  • Lentils are sensitive to acidic soils. Apply lime when soil pHCa falls below 5.0 to 20cm depth.
  • Sowing depth of 5-7cm is required to avoid post-emergent (PE) and post-sowing pre-emergent (PSPE) herbicide damage.
  • Follow a disease management program, particularly for botrytis grey mould (BGM).
  • Insect control and timely desiccation, windrowing and harvest are important. 
  • Variety purity is critical for marketing purposes (max. 1% contamination with other varieties is allowed).

Lentil agronomy

Aims

Two 2016 experiments aimed to compare growth, development and yield of current commercial lentil varieties and advanced breeding lines at three times of sowing (28 April, 17 May and 2 June) at Wagga Wagga and two sowing times (4 May, 20 May) at Yenda. 

The data collected will be used to confirm and update current agronomic recommendations for lentils in this region.

Key findings at Wagga Wagga

  • No significant yield difference was found between the 28 April and 17 May sowing dates, averaged across varieties.
  • Averaged across all varieties, there was a 26% yield penalty when sowing was further delayed from 17 May to 2 June.
  • PBA Hurricane XT, PBA Jumbo and PBA Ace  were the highest yielding commercial varieties, when averaged across sowing times.
  • Despite a very long and favourable growing season, 2016 results support previous work showing the importance of sowing within the recommended sowing window.
  • PBA Bolt and Nipper were the only varieties to yield significantly less at TOS 2.

Key findings at Yenda

  • Given an ideal growing season with good disease control and 517mm of GSR at Yenda, there was no significant difference between 4 May and 20 May sowing dates.
  • Across all varieties tested there was no significant response to sowing time, which validates the current sowing window recommendation.
  • PBA Hurricane XT, PBA Jumbo 2 and PBA Bolt were the highest yielding commercial varieties.
  • Surprisingly, PBA Ace was significantly lower yielding than PBA Hurricane XT, PBA Jumbo 2 and PBA Bolt in this experiment which is not consistent with previous research.

Graph showing grain yield of eight lentil varieties sown at three dates at Wagga Wagga in 2016

Figure 4. Grain yield of eight lentil varieties sown at three dates at Wagga Wagga in 2016 (column on left is earliest sowing date).

Graph showing mean grain yield of eight lentil varieties sown at two dates at Yenda in 2016

Figure 5. Mean grain yield of eight lentil varieties sown at two dates at Yenda in 2016.

Lentil key messages

Sowing time

Sowing date is one of the most critical management factors for lentil. It determines growth, production and yield in southern NSW. Results from 2013-2016 agronomy trials and anecdotal evidence from growers, and from production in other states indicate the optimum time to sow lentils in southern NSW is:
  • Late April through to mid-May in the western cropping region (later than lupins and faba beans, but earlier than field peas).
  • Early to late May (7-10 days later than western region) in the eastern cropping region
Sowing beyond these dates severely compromises growth, production and yield. Previous research has shown delays of 10-20 days later then these sowing windows severely reduced yield by up to 20%-40 % (Figure 5), largely due to the increasing frequencies of dry finishes to the season over the past decade. Sowing earlier than these dates encourages disease, lodging, loss of seed quality and more aggressive weed growth in a crop, branded as a poor weed competitor.
 

Varieties

Variety selection should be based on grain yield, cotyledon colour and seed size. Current commercial varieties have either red or yellow cotyledons, and are then further divided into small, medium or large seeded types (Table 1). The crop is marketed according to these criteria with overriding quality factors such as seed staining, splitting and impurities determining price.

The following varieties listed have performed well in experiments in southern NSW from 2012- 2016. 
​This symbol denotes Plant Breeder’s Rights apply.
End Point Royalty (EPR) 2016-17 quoted $/tonne ex-GST.

Red lentil – PBA Ace. PBA Ace is a medium sized red lentil with grey seed. A mid-season lentil that has been the highest yielding across all areas, though it can be lower yielding in dry years or high temperatures. PBA Ace is best suited to longer season areas replacing Nugget and PBA Jumbo. It is resistant (R) to ascochyta and moderately resistant to moderately susceptible (MRMS) to BGM. It is intolerant to salinity and boron. High milling quality. Released 2012. PB Seeds. EPR $5.

Red lentil – PBA Bolt. PBA Bolt is a medium sized red lentil with grey seed, adapted to the lower-medium rainfall areas. While similar to PBA Flash with early-mid maturity and salinity tolerance, it is moderately resistant (MR) to foliar ascochyta blight and R to seed ascochyta blight. Its susceptibility to BGM makes it less suited to medium-high rainfall areas in wetter years and with early sowing. Like PBA Flash, PBA Bolt is a good variety for timely crop topping to control weeds. An erect habit and good lodging resistance make it easier to harvest in dry conditions. Released 2012. PB Seeds. EPR $5.

Red lentil – PBA Hurricane XT. PBA Hurricane XT is a small red seeded lentil with mid flowering and maturity. Like PBA Herald XT, it has tolerance to imazethapyr with an interim permit for pre or post-emergent application to 2017.  It has improved tolerance to the herbicide flumetsulam plus reduced sensitivity to some sulfonylurea and imidazolinone herbicide residues. It is important to note that growers must adhere to product label rates, plant back periods and all label directions for use. PBA Hurricane XT is the highest yielding small red lentil available in Australia and has improved yields over PBA Herald XT, Nipper and Nugget, but lower than PBA Ace. It is MR to foliar ascochyta, R to seed ascochyta and moderately susceptible (MS) to BGM. Released 2013 (CIPAL1101). PB Seeds. EPR $5.

Red lentil – PBA Jumbo2. PBA Jumbo2 is the highest yielding large seeded red lentil, approximately 10% higher than PBA Jumbo. It is a direct replacement for Jumbo and Aldinga. It has a similar seed size to PBA Jumbo and Aldinga with a grey seed coat. It is mid flowering and has a maturity similar to PBA Jumbo. It is well suited to no-till inter-row sowing into standing stubble. It is R to ascochyta and BGM. Tolerance to soil boron is similar to PBA Flash. PBA Jumbo2 is suited to medium to high rainfall regions, where it produces uniform larger seed size well suited to premium large red split lentil markets. Released 2014 (CIPAL1203). PB Seeds. EPR $5.

Green lentil – PBA Greenfield. The highest yielding green lentil variety with yields similar to PBA Ace. PBA Greenfield is a medium-sized green lentil broadly adapted but best-suited to the medium rainfall lentils growing regions. It has improved tolerance to salinity and resistance to shattering, although timely harvest is still required. It is MRMS to foliar and seed ascochyta and MR to BGM. Released 2014 (CIPAL1104). PB Seeds. EPR $5.

Analysis of long-term trial data indicates PBA Jumbo2, PBA Greenfield and PBA Ace to be the best adapted, and highest yielding varieties in both the eastern, higher rainfall region of Wagga Wagga and the western lower rainfall region of Yenda (Figure 6). Whilst the imi-tolerant PBA Hurricane XT is slightly lower yielding than the conventional varieties, it would be the variety of choice if weed control and herbicide residues were high priority factors with variety selection.

Graph showing NVT Long Term Results (2008-15) for lentils in the south east (Wagga Wagga) and south west (Yenda) areas of southern NSW cropping zone

Figure 6. NVT Long Term Results (2008-15) for lentils in the south east (Wagga Wagga) and south west (Yenda) areas of southern NSW cropping zone. Yields are presented as a percentage of the site mean yield. 

Table 1. Lentil time of sowing guide.
This Table is a guide only and has been compiled from experimental data and observations in southern NSW only.

RIVERINA/CENTRAL WEST April  May June
PBA Ace, PBA Bolt, PBA Greenfield, PBA Hurricane XT, PBA Jumbo2       > * * <          
SOUTH WEST SLOPES April May June
PBA Ace, PBA Bolt, PBA Greenfield, PBA Giant, PBA Hurricane XT, PBA Jumbo2
      > * * * <        

>earlier than ideal, *optimum sowing time, < later than ideal but acceptable.

Table 2. Lentil variety agronomic guide (may vary with sowing time and location).

Variety Grain type  Seed coat  Seed size (%)*  Flowering time  Maturity  Lodging  Shattering  Salinity  Boron 
Small red seed                  
PBA Hurricane XT red grey  85  mid  mid  MR 
Medium red seed                  
PBA Ace
PBA Bolt
red
red
grey
grey 
100
100
mid
early/mid
mid
early/mid 
MRMS
R
MRMS
R
I
MI
I
MI
Large red seed                  
PBA Jumbo2 red grey  120  mid  mid  MRMS  MI 
Medium green lentil                  
PBA Greenfield yellow green  130  mid  mid/late  MS  MR  MI 
Large green lentil                  
PBA Giant yellow green  170  mid  mid/late  MS  MRMS  MI 

R = resistant, MR=moderately resistant, MS=moderately susceptible, S=susceptible, VS=very susceptible, I=intolerant, MT= moderately tolerant, MI= moderately intolerant. * ratings relative to Nugget. Can flower and mature relatively earlier if sown early.

Sowing depth and herbicide sensitivity

Lentils have excellent seedling vigour, making them one of the quickest pulses to emerge and establish. Therefore, lentil seeds can be sown deeper (5-7cm) into safer zones to avoid potential damage from triazines. Care should be taken when applying and incorporating herbicides on acidic, light textured soils, as some herbicides can be more active and mobile in these situations. Under these conditions, it is advisable to apply herbicides pre-sowing, lower herbicide rates, and sow seed deeper below the herbicide band, that is, 5-7 cm.

Seeding rates

Recommended target plant densities for lentils are 110-130 plant/m2. Therefore, seeding rates are adjusted according to seed size and germination. This approximates to 45-55kg/ha for small seeded varieties such as PBA Hurricane, 55-70kg/ha for medium sized varieties such as PBA Ace and 75-90kg/ha for large seeded varieties such as PBA Jumbo2 and PBA Giant

Under less favourable conditions such as later sowing, marginal sowing moisture or poor seasons, increase seeding rates by 10%-20% to facilitate canopy closure, improved growth and higher grain yield.

Herbicide tolerant lentil varieties

PBA Herald XT and PBA Hurricane XT introduce tolerance to the Group B herbicide imazethapyr, such as Spinnaker® and Belta®, thereby widening weed-control options in lentils. This is particularly relevant in a crop with only a narrow range of registered herbicides. They also have improved tolerance to flumetsulam, for example, Broadstrike®, as well as reduced sensitivity to residuals of some sulfonylurea, for example, Glean® and Logran® and imidazolinone herbicides, such as Raptor®. This provides some reassurance to lentil growers that problems of herbicide residues from previous cropping can be avoided. 

It is very important that product label rates, plant-back periods for subsequent crops, and directions for use are adhered to when using these herbicides.

Disease
Ascochyta blight (Ascochyta lentis) causes black lesions on the stem and the wilting of plants. Variety selection, seed treatment and fungicide sprays are important management practices.

Botrytis grey mould (Botrytis cinerea) is another serious disease in southern Australia. It attacks the base of the stem and the collar region of young plants, where a soft rot develops and then becomes covered with a fluffy grey mould, infected seed is white and chalky in appearance.

Current varieties vary in their resistance to both ascochyta blight and BGM. This should be taken into account when selecting a variety. High levels of BGM were observed in some crops in 2016.

Where there is high risk of BGM, growers using susceptible varieties need to apply fungicides before canopy closure. Variety choice, delayed time of sowing and wider row spacing can assist in minimising BGM.

To develop a suitable virus management strategy, it is important to test seed for cucumber mosaic virus (CMV) and alfalfa mosaic virus (AMV) if symptoms were observed in the seed crop. Aphids multiply rapidly in lentil crops. Seed treatment, an early insecticide application, continued monitoring and action may be needed to avoid rapid aphid build up and virus spread, both within the crop and to nearby crops. Thin crop stands are more attractive to aphids. Effective management of Heliothis and Etiella to prevent grain damage remains important for marketing purposes.

Table 3. Disease rating for some current lentil varieties. 
Disease ratings from PBA, January 2015. No variety with a R rating is immune to disease, and fungicide application may be required under severe disease pressure.

Variety Ascochyta blight
Foliar 
Ascochyta blight
Seed/pod
Botrytis
Grey
Mould (BGM) 
P. neglectus
(provisional) 
P. thornei
(provisional)
Small red seed          
PBA Hurricane XT MR MS  MRMSp  MRp 
Medium red seed          
PBA Ace
PBA Bolt
R
MR
R
MRMS
MRp
MR
MRp
MR
Large red seed          
PBA Jumbo2 R MS MR
Medium green lentil          
PBA Greenfield MRMS MRMS  MR     
Large green lentil          
PBA Giant MR MS  MS  MR MR

Resistance order from best to worst: R > RMR > MR > MRMS > MS > MSS > S > SVS > VS.
p = provisional ratings - treat with caution.   R = resistant,   M = moderately,   S = susceptible , V = very.

Conclusion

Recent research in southern NSW shows that lentils can be successfully grown with sound agronomic planning and management. Careful consideration must be given to variety selection, paddock selection (soil pH and drainage), time of sowing, herbicide residues, weed control, harvest timing and market opportunities. 

Lupin update

Background

Lupin production is suited to the well-drained, medium to lighter soil types in central and southern NSW. Lupins have many advantages in both cropping and mixed cropping-livestock farming systems. They can be used to extend cereal crop rotations by acting as a break crop (non-host) for cereal diseases. Other benefits include significant N contribution for subsequent crops, improved soil structure, and alternate weed control options to delay or reduce the incidence of herbicide resistance. Lupins also provide a high protein grain that can be valuable as part of a profitable livestock enterprise.

Two species of lupins, narrow-leaf (Lupinus angustifolius) and albus (L. albus), are widely grown. The NSW DPI Southern Pulse Survey 2015-16 indicated that lupins make up 49% of the southern NSW pulse area. Narrow-leaf lupins tolerate moderately acid soils (pHCa 4.5-6.0) and high levels of exchangeable aluminium (up to 20%) and manganese. However, growth and development (and survival of rhizobia) can be affected when soil pHCa drops below 5. Albus lupins are less tolerant of acid soils than narrow-leaf lupins (but more so than canola or wheat) and can accumulate high manganese levels in the grain when grown in high manganese soils. Albus lupins are more susceptible to waterlogging than narrow-leaf lupins and this was evident in some paddocks in 2016.

Aims

Two 2016 experiments were conducted, which aimed to compare growth, development and yield of 12 current commercial lupin varieties and advanced breeding lines at three times of sowing (28 April, 17 May and 2 June) at Wagga Wagga and two sowing times (4 May, 20 May) at Yenda. 

The data collected will be used to confirm and update current agronomic recommendations for lupins in this region.

Key findings at Wagga Wagga

  • Given a very long and favourable season and 525mm of GSR at this site, there was no significant main effect of sowing time from 28 April to 2 June; however there were some interesting variety by sowing date interactions detected.
  • Averaged across sowing dates, PBA Gunyidi (3.06t/ha) was the highest yielding angustifolius followed by WALAN2533 (2.85t/ha) and PBA Jurien (2.84t/ha).
  • The albus varieties yielded significantly higher at 17 May (3.56t/ha) than the earlier 28 April (3.2t/ha) and later sowing 2 June (2.95t/ha) sowing dates.

Key findings at Yenda

  • Given a very long and favourable season and 517mm of GSR at this site, an above average site mean yield of 4.04t/ha was obtained in this experiment. 
  • Averaged across species, angustifolius was 19% and 10% higher yielding than albus at TOS1 and TOS 2, respectively (Figure 8). 
  • PBA Jurien and Mandelup were the only varieties to yield significantly higher at TOS 1 over TOS 2 at 12.9% and 20.3%, respectively (Figure 8).
  • There was no significant response to sowing time in any of the albus varieties tested. 

Graph showing Grain yield of 12 lupin varieties sown at three dates at Wagga Wagga in 2016

Figure 7. Grain yield of 12 lupin varieties sown at three dates at Wagga Wagga in 2016 (column on left is earliest sowing date).

Graph showing grain yield of 12 varieties sown at two dates at Yenda in 2016

Figure 8. Grain yield of 12 varieties sown at two dates at Yenda in 2016 (column on left is earliest sowing date).

Key lupin messages

  • The fungal disease anthracnose was detected for the first time in commercial lupin crops in NSW in 2016. Currently the disease is confined to a small number of properties in southern NSW with restrictions in place. Lupin production can continue for the remainder of NSW outside the restriction zones. 
  • Wonga, PBA Jurien and PBA Barlock are R whilst PBA Gunyidi (MR-R) and Mandelup (MR) are slightly more susceptible. All other narrow-leaf and albus lupin varieties are very susceptible to anthracnose. 
  • Growers are advised to follow the five point management plan that is recommended for all lupin producers in NSW to prevent the establishment and spread of the disease. Readers are directed to the Lindbeck et al. (2017) report in these proceedings, ‘Pulse Diseases — The ‘Watch Outs’ for 2017’.   
  • All current lupin varieties are susceptible to frost damage. Lupins are most vulnerable during the reproductive phase, which occurs once they initiate stem elongation. Frost damage risk can be reduced by not sowing varieties earlier than the recommended sowing window and so avoid flowering in July to early August. For most lupin-growing areas in southern NSW, sowing before late April increases the risk of frost damage with early flowering varieties such as Mandelup.
  • Current angustifolius varieties vary in their resistance rating for phomopsis. If lupin stubble grazing is required, it is recommended to grow a variety with the R rating for phomopsis.
  • Maintain soil pHCa above 5.5 to maximise plant health and potential grain yield.
  • Albus lupins require paddocks with good drainage.
  • Always do a germination test on seed and adjust the sowing rate accordingly. Sowing quality seed is critical to achieving adequate plant density and high yields.
  • Insect management during pod fill is critical to produce export quality albus lupins.
  • High shattering losses can occur in varieties such as Mandelup when harvest is delayed past maturity.

Variety selection

Select lupin varieties depending on yield potential for your environment and resistance to diseases that cause regular problems in your area. 
This symbol denotes Plant Breeder’s Rights apply.

Narrow-leaf lupins

Jenabillup. Released in 2007 by the Western Australian Department of Agriculture and Food (DAFWA). High yielding, medium-tall, early flowering variety. Resistant to black pod syndrome (BPS), which is a problem in cool, higher-rainfall areas of southern WA. This resistance also appears to be beneficial in the eastern states when conditions favour high levels of bean yellow mosaic virus (BYMV). Commercialised by Seednet, protected by PBR. An End point royalty (EPR) of $2.53/tonne applies.

Mandelup. Released in 2004 by DAFWA. High yielding, early maturing variety with good early vigour. Suited to the low-medium rainfall zones of NSW. Has a tendency to lodge in very high biomass situations and not generally recommended for the higher rainfall zones. Mandelup is the earliest maturing variety currently available and therefore the most suitable for crop topping. Resistant  to phomopsis stem blight. Marketed by Heritage Seeds, protected by PBR. An EPR of $2.53/tonne applies.

PBA Barlock. Released in 2013 by Pulse Breeding Australia (PBA) in WA only to replace Mandelup and Tanjil in all WA lupin-growing zones. Compared with Mandelup, PBA Barlock is slightly later flowering and maturing, but has a shorter harvest height. It is MR to lodging in high rainfall regions and is more R to pod shattering than Mandelup. Resistant  to anthracnose. Tolerant to metribuzin (equal to Mandelup). Moderately resistant  to phomopsis stem blight. Commercialised by Seednet, protected by PBR. An EPR of $2.75/tonne applies.

PBA Gunyidi. Released in 2011 by PBA in WA only as a replacement for all varieties in the medium and low rainfall zones of WA. In NSW, PBA Gunyidi yields have been marginally lower than Mandelup based on long term trial results. PBA Gunyidi has superior resistance to pod shatter and good lodging resistance, allowing later harvest without incurring significant shatter losses. Resistant  to phomopsis stem blight. Moderately resistant  to anthracnose. Tolerance to the herbicide metribuzin is equivalent to Mandelup but is more susceptible to damage from Eclipse®. Commercialised by Seednet, protected by PBR. An EPR of $2.75/tonne applies.

PBA Jurien. Released in 2015 by PBA in WA. PBA Jurien is a broadly adapted high-yielding variety that is R to anthracnose, phomopsis and grey spot. It is tolerant to metribuzin (superior to PBA Barlock) with early flowering and maturity similar to other current varieties. NSW trials have shown it to be more susceptible to plant lodging than other current varieties in high rainfall areas, particularly when sown early and conditions suit high biomass levels. Commercialised by Seednet, protected by PBR. An EPR of $2.75/tonne applies. 

WALAN2533. A new variety planned for availability in the 2018 season by Seednet. It offers significant yield improvements over current varieties, particularly in the eastern cropping zones of NSW where virus infection from CMV and BYMV can cause significant yield loss in susceptible varieties when seasonal conditions are conducive to high aphid numbers.

Albus lupins

Luxor. Released in 2005 by NSW DPI. Higher yielding than Kiev Mutant and Ultra. Resistant to Pleiochaeta root rot (the cause of many seedling deaths in older varieties). Luxor is seven days later flowering than Ultra, but earlier flowering than its companion line Rosetta. Suited to the medium-low rainfall zones of NSW. Commercialised by Seednet, protected by PBR. An EPR of $3.08/tonne applies.

Rosetta. Released in 2005 by NSW DPI. Higher yielding than Kiev Mutant and Ultra in longer season environments. Moderately resistant to Pleiochaeta root rot. Later flowering and taller than Luxor, it is especially suited to higher rainfall areas. Commercialised by Seednet, protected by PBR. An EPR of $3.08/tonne applies.

Graph showing NVT Long Term Results (2008-15) for narrow-leaf lupins in the south east of the southern NSW cropping zone

Figure 9. NVT Long Term Results (2008-15) for narrow-leaf lupins in the south east of the southern NSW cropping zone. Yields are presented as a percentage of the site mean yield.

Graph showing NVT Long Term Results (2008-15) for albus lupins in the south east of the southern NSW cropping zone 

Figure 10. NVT Long Term Results (2008-15) for albus lupins in the south east of the southern NSW cropping zone. Yields are presented as a percentage of the site mean yield.

Table 4. Lupin (angustifolius) characteristics Table (Data from DAFWA/Pulse Breeding Australia).

Variety Brown spot  Phomopsis stem Phomopsis pod Anthracnose  Grey spot  CMV (seed)  BYMV  Aphid  Metribuzin  Pod shatter  Loding 
WALAN2533 MS R MR MRMS R MSMR R R T MRMS MR
Jenabillup MS/MR MS RMR S R MS/MR MR R IT MS MS/MR
Mandelup MS R MRMS MR R MS S R T MS MS
PBA Barlock MS MR RMR R R MR MS R T MRMS MR
PBA Gunyidi MS R MR MR S MS/MR MS R T MR MR
PBA Jurien MS R MRMS R R MS/MR MR R T MRMS MS

M=moderately, S=susceptible, R=resistant, VT=very tolerant, T=tolerant, IT=intolerant

Weed control

There is a range of herbicides to control both broadleaf and grass/cereal weeds in lupins. Sowing early with successful crop establishment is essential to achieve more effective results from herbicides.

Herbicide damage causing yield losses in lupin crops has been observed from both residual herbicides applied before cereal crops and from in-crop herbicides. Plants weakened by herbicides are more susceptible to root and foliar diseases such as Phytophthora root rot, Pleiochaeta root rot and brown leaf spot.

  1. Sulfonylurea herbicides, such as Glean® or Logran® applied to preceding cereal crops. Take special note of label instructions concerning crop rotation and plant-back periods, particularly on high pH and/or compacted soils, and after prolonged periods of low rainfall or drought.
  2. Triazine herbicides, for example, simazine. Be aware that application rates vary significantly on different soil types. Follow label recommendations and avoid spray overlaps. Albus lupin is more sensitive to triazine damage.
  3. Clopyralid, for example, Lontrel® applied to preceding cereal crops. Clopyralid can carry over in straw and affect subsequent crops.
  4. Metosulam (for example, Eclipse®). Damage can occur in-crop if applied beyond the recommended growth stage. Some varieties are sensitive and have narrow safety margins. Follow label recommendations.
For more detailed information on current weed control and plant-back recommendations, refer to pesticide labels and NSW DPI guide ‘Weed control in winter crops’.
 

Further Information

NSW DPI Winter Crop Variety Sowing Guide 2016 

Pulse Australia: information on growing pulses including:
Crop specific production guides.

National Variety Trials - Detailed NVT trial results and links to variety information.

Weed control in winter crops (NSW DPI, 2016).

Insect and mite control in field crops (NSW DPI, 2013). 

Winter pulse disorders: The Ute Guide (GRDC).

NSW DPI website for various pulse crop Agfacts. 
NSW DPI Southern NSW Research Results 2015.

References

Burns H, Norton M and Tyndall P (2017). ‘Topsoil stratification impacts on pulse production in SE Australia’. In: Proceedings of 2017 Wagga Wagga Grains Research Update. 14-15 February, 2016’

Lindbeck K, Moore K, Richards M, O’Connor G (2017).  ‘Pulse Diseases — The ‘Watch Outs’ for 2017’. In: Proceedings of 2017 Wagga Wagga Grains Research Update. 14-15 February, 2016.

NSW DPI Winter Crop Variety Sowing Guide 2016 

Victorian Winter Crop Summary 2016 — Lentil, Vic DEDJTR

Contact details

Mark Richards
NSW Department of Primary Industries
Wagga Wagga Agricultural Institute 
Pine Gully Road, Wagga Wagga 2650
0269 381831
mark.richards@dpi.nsw.gov.au
@NSWDPI_Agronomy