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abiotic stress

Catalogue: Ground Cover
Often working unseen by the industry at large, the work of pre-breeders is fundamental to the development of more resilient crops.. Breeding new varieties of wheat and barley costs money and time; typically, it takes 12 years before a new variety is released to the market... The material, via the University of Adelaide's barley breeding program, is part of a four-year national study to characterise the temperature associated with frost events and the level of frost-induced sterility experienced in wheat and barley in frost-prone regions of WA, South Australia and Queensland...
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Catalogue: GRDC 2014 Research Summaries
In many self-pollinating crops such as wheat, heat stress at the time of pollen development results in pollen sterility and a severe reduction in grain number... Heat and other abiotic stresses appear to affect tapetal development and the timing of tapetal degradation, making it occur prematurely and thereby causing pollen abortion and sterility... Heat-sensitive and tolerant wheat varieties will be subjected to heat stress treatment and the association of faulty tapetal development and premature tapetal degradation with heat-induced sterility Our laboratory has identified genes in wheat that control the timing of this event...
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Catalogue: GRDC Publications
6 AGP00010: Validation of late sowing to identify heat stress tolerance in wheat and investigation of QTL for heat stress tolerance .................................................................................................................................................................................... In summary, the project will provide valuable genotype information and deliver new genetic resources to Australian wheat breeders... Overall, the approach has a strong applied orientation aimed at crop improvement...
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Catalogue: GRDC Updates
Tolerance to abiotic stresses such as drought, salinity, and frost remains a major target for crop improvement programs worldwide... Thioredoxins represent a redox-active protein class with an emerging role in the oxidative defense mechanism... When reduced, thioredoxins have a low redox potential, providing the capacity to reduce disulfide bonds in target proteins or transfer reducing equivalents to substrates...
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