期刊论文

Effects of Different Sowing Dates on Growth and Yield of Sown Early Rice Seedlings

中文

分子植物育种

1672-416X

2020

18

6

2052-2063

10.13271/j.mpb.018.002052

长江中下游水稻减灾保产调控关键技术(2017YFD0300409) 国家水稻产业技术体系岗位专家项目(CARS-01-26)共同资助。

本校为第一机构

通过设置不同播期,比较不同早稻品种间幼苗生长和产量的差异,筛选耐寒早稻品种和适宜播期,预防或减轻"倒春寒"对早稻生产的影响,探究通过播期调控来实现洞庭湖稻区早稻减灾保产的可行性。以长江中下游地区13个主推早稻品种为供试材料,设立3个播期,研究不同播期下早稻秧苗素质、产量、生育期变化。播期推迟会使早稻生育期缩短。在第Ⅰ播期时,‘江早361’、‘湘早籼24’、‘中早39’这3个品种产量表现较好;在第Ⅱ播期时,各品种产量表现较为稳定;第Ⅲ播期时,‘淦鑫203’产量最高,‘金早47’和‘柒两优2012’则产量表现较低。综合看来,‘陆两优996’的产量最为稳定。随着播期的推迟,直播早稻的产量呈...

In order to explore the feasibility of achieving high yield and high quality of early rice through sowing date regulation in dongting lake rice area, to clarify the influence differences of early rice yield of different varieties, to select the optimal sowing date and variety for early rice production in the middle and lower reaches of the Yangtze River, and to prevent or reduce the influence of "late spring coldness" on early rice production. Common early rice varieties, 8 conventional rice varieties and 5 hybrid rice varieties in the middle a...