关键词: 水稻, 水稻, CMS, 近等基因系, 育性, 不育基因

Abstract: To get the response features of the growth period of spring rape to local climate change in alpine region of Qinghai, based on the growth period and meteorological observation data of spring rape from Guinan meteorological bureau during 1991-2017, we analyzed the responses law of the growth period of spring rape to climate change by adopting linear regression method. The results showed that: (1) the average temperature, the average minimum temperature and the accumulated temperature steadily through 0℃ showed a non-significant upward trend; the cumulative precipitation and the average wind speed increased significantly, while the cumulative sunshine hours showed a significant decreasing trend; (2) during the seeding stage of spring rape, there was no obvious response to climate change, and the growth period, such as maturation stage, seeding stage, peduncle growth stage, five leaves and squaring period, all significantly delayed with interannual extension, and the delayed trend of flowering period was not significant; (3) the increase of the number of days during the whole growth period of spring rape were not significant, and the days of the whole growth period varied greatly; there was a significantly negative correlation between the days of the whole growth period and the average temperature, the average maximum temperature and the average minimum temperature; there was an extremely and significantly positive correlation between the days of the whole growth period and the accumulated temperature steadily through 0℃, the sunshine hours and cumulative precipitation.