On variations in the growth/development stages of winter wheat and their response to climate

Guoqiang Zhao; Huailiang Chen; Xuefen Zhang; Weichang Liu; Shitao Wang

doi:10.1117/12.616656

1 September 2005 On variations in the growth/development stages of winter wheat and their response to climate

Guoqiang Zhao, Huailiang Chen, Xuefen Zhang, Weichang Liu, Shitao Wang

Proceedings Volume 5884, Remote Sensing and Modeling of Ecosystems for Sustainability II; 58841K (2005) https://doi.org/10.1117/12.616656
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Using data from Zhengzhou the Excel-made time-dependent variations in the growth and development (G/D) stages of winter wheat in 1981-2002 are investigated, with analysis done of the curves. Also, the trends of G/D variations over the years are dealt with by use of the related tendency rates of the appearing dates of all the G/D stages of the crop. Results show that the dates of pre-winter G/D stages depend mainly on the seeding date and the overwhelming majority of the G/D stages shift to an earlier date in the vegetative growth period. A statistical expression is constructed by utilizing the 1981-2002 data of the number of days of the G/D stages and corresponding mean temperatures, with which to explain the variation of the G/D stages of winter wheat.

Citation Download Citation

Guoqiang Zhao, Huailiang Chen, Xuefen Zhang, Weichang Liu, and Shitao Wang "On variations in the growth/development stages of winter wheat and their response to climate", Proc. SPIE 5884, Remote Sensing and Modeling of Ecosystems for Sustainability II, 58841K (1 September 2005); https://doi.org/10.1117/12.616656

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