You are here

high temperature

Categorised under:

Catalogue: GRDC Final Reports
Rationale of the research is growing a diverse range of chickpea genotypes for heat tolerance screening in India (International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad) and Australia (Plant Breeding Institute (PBI), Narrabri, New South Wales) over two growing seasons in the field... The broad outcome of this project was to develop an improved understanding of genetic diversity of chickpea genotypes using molecular markers, the effects of high temperature on chickpea growth and yield and to identify traits that can be potentially exploited for future breeding programs on heat tolerance in chickpeas... Improved knowledge of high temperature effects on plant responses under stressed and non-stressed environments is required for effective germplasm screening...
Related categories:
Catalogue: GRDC Media
Western Australian research has shown that canola is most vulnerable to heat damage at flowering and early pod fill stages, and that high temperatures can halve the yield potential of some varieties... Unseasonably hot weather has reduced the yield potential of many WA canola crops in recent seasons, and some cropping areas this year experienced record temperatures exceeding 34 C in early September... Dr Chen says the information could be used by growers to help them adjust sowing times and select varieties to minimise the risk of yield losses...
Related categories:
Catalogue: GRDC Media
Western Australian research has shown that canola is most vulnerable to heat damage at flowering and early pod fill stages, and that high temperatures can halve the yield potential of some varieties... Unseasonably hot weather has reduced the yield potential of many WA canola crops in recent seasons, and some cropping areas this year experienced record temperatures exceeding 34 C in early September... Dr Chen says the information could be used by growers to help them adjust sowing times and select varieties to minimise the risk of yield losses...
Related categories:
Catalogue: GRDC Media
Sorghum growers weigh up January heatwave risk.. Sorghum growers looking to plant in November are being urged to weigh up the risk of excessively high temperatures occurring in January and coinciding with critical development phases of crops... The research found the most severe impacts on yield occurred when high temperatures around flowering reduced the viability of sorghum pollen causing reduced seed set and yield loss, according to Professor Graeme Hammer, Director of the University of Queensland's Centre for Plant Science at the Queensland Alliance for Agriculture and Food Innovation (QAAFI)...
Related categories:
Catalogue: GRDC YouTube channel
" GRDC Crop Updates 28-29 February 2012, Western Region, Perth WA. Ian Foster 17 September 2013 Ian Foster, DAFWA, discusses temperature extremes in the WA wheat belt... Spring temperatures have generally warmed over the past 50 years frost risk remains and has increased in some locations... The date of last frost event has been occurring earlier in the year by one to two weeks at most locations...
Related categories:
Catalogue: GRDC Media
The need for sorghum to beat the heat.. Professor Graeme Hammer, whose team at QAAFI led the experimentation and modeling, says research has confirmed that yield cannot be estimated at the time of sowing and the superiority of specific genotype and management combinations varies from year to year depending on how the season transpires... "The best we can do is to estimate the risks of what might happen for different scenarios given historical climate data...
Related categories:
Catalogue: Ground Cover
Dr Viola Devasirvatham undertaking a chickpea heat-tolerance field experiment at the Plant Breeding Institute at Narrabri... The discovery of heat-tolerant chickpea genotypes may improve the reliability of yields in the northern grainbelt of Australia and other semi-arid environments around the world... Crop phenology (days to first flowering, days to 50 per cent flowering, days to first pod and days to maturity), growth (plant height, plant width and biomass at harvest) and grain yield (including pod number per plant, filled pod number per plant and seed number per plant) were recorded in both seasons...
Related categories:
Catalogue: Ground Cover
Researchers from the Queensland Alliance for Agriculture and Food Innovation (QAAFI), including the University of Queensland and CSIRO, have identified heat-tolerant sorghum lines that commercial breeders can use to develop new hybrids in the next five to 10 years... "The implications of this heat tolerance are that growers should be able to improve yield and reduce risk through the selection of suitable sorghum hybrids," Professor Hammer says... "Planting in early to mid-October increases the risk that high temperatures - experienced throughout late December and early January - could coincide with the emergence and flowering of the seed head," Professor Hammer says...
Related categories:
Catalogue: Ground Cover
Researchers from the Queensland Alliance for Agriculture and Food Innovation (QAAFI), including the University of Queensland and CSIRO, have identified heat-tolerant sorghum lines that commercial breeders can use to develop new hybrids in the next five to 10 years... "The implications of this heat tolerance are that growers should be able to improve yield and reduce risk through the selection of suitable sorghum hybrids," Professor Hammer says... "Planting in early to mid-October increases the risk that high temperatures - experienced throughout late December and early January - could coincide with the emergence and flowering of the seed head," Professor Hammer says...
Related categories:
Catalogue: GRDC Media
Heat tolerant sorghum to boost production in the north.. "Planting at this time increases the risk that high temperatures will coincide with the emergence and flowering of the seed head-a time when the crop is most susceptible," Professor Hammer says... Dr Scott Chapman, a senior researcher from CSIRO who presented the heat-tolerance research findings at the GRDC Updates earlier this year, says the key message to growers is that genetic variation for heat tolerance around flowering has been found...
Related categories:

Pages