New research for production of chickpeas

31/08/2018
A multi-nation research collaboration is hoping to unlock valuable new opportunities for the production of chickpeas in Australia.

Researchers supported by GRDC have collected and multiplied wild chickpea species located in the Middle East to build a special genetic resource from which important traits are being screened.

Researches are hoping for a possible incorporation into a new disease-resistant, stress-tolerant, high-yielding varieties for Australian growers.

Dr Francis Ogbonnaya, GRDC pulses and oilseeds manager, says the research is likely to lead to an expansion of Australia’s chickpea production area, particularly in regions where opportunities to grow chickpeas have been limited due to the availability of lines tolerant to constraints such as acidic soils, abiotic stresses and disease stresses.

Chickpeas are Australia’s most valuable cash crop

Dr Ogbonnaya explains the importance of chickpeas in Australia, “…they play an important role in terms of overall optimisation and sustainability of our farming systems.”

“They act as a break crop for cereal rotations, they add nitrogen to the soil, assist with weed control and add market diversity.”

The new research aims to help farmers who have previously had difficulty growing chickpeas due to the narrow genetic base of the domesticated chickpea.

Growth for WA

In Western Australia 2017, only 5000 hectares were planted to chickpeas because of the lack of chickpeas adapted to acidic soils.

“If growers had access to varieties with acid tolerance – and evidence is showing those traits exist in the wild material we now have available – the area planted to chickpeas in the west could potentially grow to about 500,000 hectares. Growers would have a valuable break-crop alternative to lupins.

Wild Genetic Material

CSIRO ecophysiologist, Dr Jens Berger, says

“I am optimistic that we captured the adaptive diversity needed to improve the performance of cultivated species.”

The wild genetic material is being screened for traits such as tolerance to acidic soils, drought, heat and cold, water use efficiency and resistance to diseases such as ascochyta blight, Phytophthora root rot and root lesion nematodes.

Participating in the work are several of GRDC’s Australian research partners including the Centre for Crop and Disease Management; Murdoch University.

Climate change: Planning for future farming

16/08/2018

Climate change is causing everyone to plan ahead for the future.

Experimenting with new ideas is important so we can better understand what will work in the future.

For decades farmers have been dealing with heat waves, flooding, droughts and extreme colds. We can only expect these issues to continue into the future.

Paul Blackwell, retired from CSIRO and DAFWA, has a few suggestions and guidelines that may work for farmers in a Controlled Traffic Farming (CFA) framework.

csiro

Heat Stress

Low rainfall crops can be diminished by approximately one-third for every degree above 35 degrees per day of flowering.

The following strategies may help reduce heat stress:

  • By orientating the rows and tramlines north-south or NW-SE you can allow more of the afternoon’s sun between the rows and not on the crop.
  • Burying topsoil and appropriate organic matter in the subsoil can help cool the heads of flowering crops and pastures by encouraging root density in the subsoil.
Cold Stress (radiation frost)

It may be possible to increase canopy temperature on cold nights (following sunny afternoons) if sunlight can heat the soil between rows and be released to warm the crop later at night. Guidelines of north-south to  NW-SE orientations, wide rows and stubble apply.

Extreme Dry (after summer rain)

Verified by good soil modelling and experimental investigations by The University of Western Australia, Paul Blackwell explains the importance of moisture;

“Keep the subsoil moisture in better with a less compact profile to wick away the moisture and protective stubble to minimise evaporation. Do early sowing between or next to rows to help conserve that benefit. Also, employ dry ridges of non-wetting sand between rows to further lower summer evaporation rates by using smart furrow sowing.”

Extreme Wet
  • Apply safe surface drainage with peak stubble levels,
  • Use slow overland flow along tramlines
  • Furrows with less than 3 percent slope
  • Create drive-through drains in complex slope systems for safer water disposal.

farm weelly wa wheatbelt

These ideas have been backed by farmers and consultants in the southern WA Wheatbelt.

Some of these ideas are being tried at Anthill Farm, Dartmoor.

 

Image source: farmweekly.com.au

Source: Farm Weekly

Feature image source: abc.net.au