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Increasing Heat Tolerance in Wheat to Counteract Recent and Projected Increases in Heat Stress
Najeeb Ullah, Behnam Ababaei, Karine Chenu · 2020 · Proceedings
The frequency of heat shocks during grain filling of wheat crops across the Australian wheatbelt has significantly increased over the last 30 years. These post-flowering heat events significantly reduce wheat yields with a relatively greater impact on grain size than grain number. A controlled environment study was conducted to assess the impact of post-flowering heat shocks on wheat recombinant inbred lines SB062 and SB003. Plants were submitted to 7-day heat shocks (33/21 °C day/night temperature) at different periods during grain filling. Heat shocks significantly accelerated leaf senescenc
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