Impact of temperature stress during late grain filling on head rice yield

Fawad Ali, Daniel LE Waters, Ben W. Ovenden, Peter Bundock, Carolyn A. Raymond, Tobias Kretzschmar, Terry J. Rose

    Research output: Other contribution to conferenceAbstract


    Global climate change represents a threat to the productivity of staple crops, including rice (Oryza sativa). Rice is sensitive to heat stress, but the impact of heat stress during grain filling on rice yields and grain quality traits such as % head rice yield has not been fully resolved. In the present study, we evaluated the impact of increased heat stress events in two japonica (Baru, Lemont) and one indica rice cultivar (Teqing) along with Californian line M205 (japonica) in a controlled environment. A 10 d heat stress event (31/23oC, 33/24oC and 35/25oC: day/night, 12h/12h) was applied to all cultivars from 10 days after 50% flowering/anthesis (DAF) to 20 DAF compared to a control treatment (28/21oC; day/night for 12h/12h). The percentage head rice yield is determined by the factor of the rice grain cracking during the milling operation. However, the knowledge is limited to the steps involved in milling operations, such as de-hulling and polishing.
    Original languageEnglish
    Number of pages1
    Publication statusPublished - 12 Sept 2018
    Event68th Australasian Grain Science Conference - Charles Sturt University, Wagga Wagga, Australia
    Duration: 10 Sept 201813 Sept 2018 (Conference booklet)


    Conference68th Australasian Grain Science Conference
    Abbreviated titleGrain Science Transforming our Future
    CityWagga Wagga
    Internet address


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