[ASC-media] YELLOW PREMIUM/TACKLING RESISTANCE: GRDC Grain Flashes

Brendon Cant brendon at iinet.net.au
Wed Feb 23 10:40:46 EST 2005


YELLOW PREMIUM - Superior varieties of yellow lupin will allow WA
graingrowers to take advantage of a potential premium market.
 
A new GRDC project aims to develop breeding lines with improved aphid
tolerance, better shatter resistance, greater disease resistance, more
herbicide tolerance, increased protein and higher yield.
 
Yellow lupin has higher protein content and higher sulphur amino acids than
narrow-leafed lupin and therefore has a premium grain status in the feed
market, according to Department of Agriculture researcher Mark Sweetingham.
 
“Lower yield and susceptibility to aphids are the major obstacles to grower
adoption of yellow lupin.
 
“The industry is also limited by available cultivars which are poorly
adapted to maximise yield under dry Australian conditions.
 
“However, the GRDC project will help produce improved varieties enabling the
crop to reach its potential and increase returns to growers,” Dr Sweetingham
said.
Contact: Dr Mark Sweetingham, Tel 08 9368 3298  
 
TACKLING RESISTANCE - When tackling herbicide resistant weeds, it is
imperative to reduce the weed population to the lowest possible level at the
earliest possible time, by adopting integrated management programs for the
control of herbicide resistant weeds
 
An eight year GRDC project by Bill Roy of Agricultural Consulting and
Research Services found periods of seed bank reduction, such as a pasture
phase including grazing with sheep and timely paraquat applications each
spring, allowed for extended periods of cropping in the years following.
 
The GRDC research showed the time taken to run down a resistant ryegrass
seed bank influenced the initial in-crop ryegrass population and the number
of years in crop before needing another ‘time out’ period.
 
“Being out of crop for one year was not effective, whereas with two to three
years of seed set control the seed bank was exhausted to the extent that a
sustained period of cropping resulted in low ryegrass numbers kept in check
by competitive wheat crops,” Mr Roy said.

Contact: Bill Roy, Tel 08 9641 1080

 

Authorised by GRDC and issued on its behalf by:

Brendon Cant & Associates
Public Relations & Marketing
114 Branksome Gardens
City Beach WA 6015
Tel 08 9385 7779 Fax 08 9385 7776
 
 

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