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Response of wild oats to environmental stresses

Ali, M., Williams, A., Widderick, M. and Adkins, S. (2021) Response of wild oats to environmental stresses. GRDC Update .

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Article Link(s): https://grdc.com.au/resources-and-publications/grd...

Abstract

Take home message
• When under heat and water stress, wild oat plants can mature 3 weeks earlier than non-stressed plants
• Stressed plants produce 30% fewer seeds; additionally, these seeds are 40% smaller and show less dormancy than seeds from non-stressed plants
• Seed dormancy can differ between biotypes and between the two types of seeds (primary and secondary) produced by wild oat plants
• Early plant maturation can cause early seed shedding depending on the severity of heat and water stress
• If the occurrence of late season environmental stresses becomes more frequent as forecast under a changing climate, the efficacy of strategies such as harvest weed seed control may further diminish for wild oats.

Item Type:Article
Business groups:Crop and Food Science
Keywords:heat stress, drought, no/minimum tillage conservation agriculture, wild oats survival
Subjects:Science > Botany > Genetics
Agriculture > Agriculture (General) > Agriculture and the environment
Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Plant culture > Seeds. Seed technology
Plant culture > Food crops
Plant culture > Field crops > Oats
Deposited On:04 Mar 2021 07:17
Last Modified:03 Sep 2021 16:46

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