两系杂交水稻组合Y58S/9311亲本的生育特性观察  

Observation of growth characteristics of two-line hybrid rice parents of combination Y58S/9311

作　　者：罗文杰[1] 袁潜华[1] 张加[1] 宋忠华[2] 周玉[2] 何美丹[1] 

机构地区：[1]海南大学农学院,海南海口570228 [2]湖南省气象培训中心,湖南长沙410125

出　　处：《热带生物学报》2012年第1期56-58,共3页Journal of Tropical Biology

基　　金：2010年中国气象局小型建设项目"超级杂交稻制种气象咨询服务业务系统研发"

摘　　要：于2010年对两系杂交水稻组合Y58S/9311进行分期播种试验,观察其在海口的生育特性,并对父母本的播始历期与积温的相关关系进行回归分析。结果表明:不同播期,父本的播始历期在93～113 d之间,且随着播期的推迟而呈现逐渐缩短的趋势,母本的播始历期在85～98 d之间;父本的播始历期与积温表现为相关不显著,而母本的播始历期与积温呈显著相关。Two-line hybrid rice parents of combination Y58S/9311 were sown by stages in the field in 2010 to observe their growth characteristics in Haikou, Hainan province. The results showed that the duration from see- ding to heading （DSH） of the paternal line 9311 is 93--113 days in different sowing stage, and tends to be shortened gradually with the delay of sowing dates, and that the DSH of the maternal line Y58S is 85---98 days. Regression analysis between the cumulative temperature and the DSH showed that the DSH of the maternal line was significantly correlated with the cumulative temperature, while that of the paternal line was not significantly correlated with the cumulative temperature.

关 键 词：两系杂交水稻 播始历期 积温 生育特性 

分 类 号：S511[农业科学—作物学]