温度、光照对80优121生育期及产量因素的影响  

Effect of Accumulated Temperature and Light Duration on the Growth Period and Yield Component of Hybrid Rice 80 You 121

作　　者：杨联松[1] 孙明[1] 张培江[1] 许传万[1] 白一松[1] 

机构地区：[1]安徽省农业科学院水稻研究所

出　　处：《安徽农业科学》1998年第1期10-11,14,共3页Journal of Anhui Agricultural Sciences

基　　金：安徽省科委攻关课题

摘　　要：对杂交中粳８０优１２１在８个不同播期下的生育期、产量因素、理论产量与影响产量因素总积温、光照时数的相关研究。结果表明８０优１２１为中感温、中感光组合；随播期的推迟其全生育期缩短，播期每推迟１０ｄ，全生育期缩短５～７ｄ，播始历期缩短４～６ｄ；构成８０优１２１产量因素的单株有效穗、每穗总粒数与影响该因素的生育时段总积温相关极显著，相关系数分别为０．８４１和０．７０４，结实率不仅与影响该因素的生育时段总积温相关，而且与影响该因素的生育时段光照时数相关，相关系数分别为０．８０３和０．７７１，均达显著水平。千粒重与总积温、光照相关不显著。合肥地区适宜播期为５月上中旬。The relationship between the growth period,yield component of japonica hybrid rice 80 you 121 and accumulated temperature,light duration was studied. The results showed that 80 you 121 was a thermosensitivity combination;the coefficents between the number of effective tiller,spikelets per plant and accumulated temperature were significant correlation,(0 841 and 0 704 respectively);the coefficents between 1 000 grain weight and accumulated temperature,light duration were significant correlation,(0 803 and 0 771 respectively). The coefficents between seed setting and accumulated temperature,lignt duration were not significant.

关 键 词：杂交中粳 80优121 总积温 光照 生育期 产量因素 

分 类 号：S511.220.1[农业科学—作物学] S511.320.1