Australia
November 23, 2004
The campaign to make chickpeas more profitable for northern
graingrowers is to continue, with the
Grains Research and Development
Corporation (GRDC) supporting a range of new research by the
New South Wales Department of Primary Industries (NSWDPI).
Some of the work, to be led by NSWDPI Tamworth pathologist Kevin
Moore, will improve disease management strategies developed in
earlier GRDC supported research by the department and its
Queensland counterpart (QDPI&F).
Other research, to be pursued in the latter stages of the three
year project, is truly “blue sky” – one component looking to
boost chickpeas’ natural defence mechanisms to combat disease
and another trying for biological control of disease through
amended seed treatment.
According to Dr Moore, the whole rationale of the project is to
make growing chickpeas in the northern region – NSW north of the
Macquarie River and Queensland – more profitable for growers.
“Chickpeas assist cereal production in the northern grains
region, as they help solve declining soil fertility, weed
problems and cereal disease,” Dr Moore says. ‘
“Management packages developed under our earlier GRDC supported
research have helped chickpea production expand in the north,
but they are incomplete to some degree and that – as well as the
lack of disease resistant varieties – limits chickpeas
acceptance by many growers.
“While the new varieties from the chickpea breeding program are
less susceptible to Ascochyta blight, they will still need
management. They are all susceptible to Botrytis grey mould and
Phytophthora root rot continues to be a major threat.
“This new project will refine existing the Ascochyta packages to
match economic constraints for current varieties and develop
strategies for new ones. It will also develop a Botrytis package
and improve fungicide efficiency.”
Dr Moore said while grower experience, and his own team’s trials
in 2003, showed skipping one or two fungicide sprays was
disastrous with very susceptible varieties like Jimbour, missing
a spray with the new, Ascochyta resistant lines was much less
serious.
There were also gains to be made in improving the efficiency and
persistence of fungicides, in the relationship between price,
chickpea variety and crop stage and disease pressure levels,” Dr
Moore said. |