摘要
[目的]为提高水稻的单产水平提供理论依据。[方法]以水稻品种黔优88、益农1号和黔南优2058、Ⅱ优838(对照)为供试材料,研究了不同品种的高产特性。[结果]黔优88、益农1号和黔南优2058的产量分别为12 990.0、12 823.5和12 460.5 kg/hm2,分别比对照Ⅱ优838增产20.0%、18.5%和15.1%。与对照Ⅱ优838相比,黔优88、益农1号和黔南优2058的有效穗增加15.1%、24.5%和3.5%;千粒重分别高2.7%、4.2%和11.4%;总颖花数分别增加10.5%、11.7%和8.3%,生物产量分别高187.0、98.0和220.0 g/m2。黔优88和益农1号库容量分别比Ⅱ优838大13.4%和16.4%。上述3个品种的干物质生产优势表现在中期和后期。[结论]黔优88、益农1号和黔南优2058的平均产量达到12 757.5 kg/hm2。
[ Objective ] The study was to provide the theoretical basis to improve the yield level of rice. [ Method ] With rice varieties of Qianyou 88, Yinong 1, Qiannanyou 2058 and Ⅱ you 838 （CK） as materials, the high yield characteristics of different varieties was studied. [ Result] The yield of Qianyou 88, Yinong 1, Qiannanyou 2058 was 12 990.0, 12 823.5 and 12 460.5 kg/hm^2 resp. , increasing by 20.0%, 18.5% and 15.1% than that of CK variety Ⅱ you 838. Compared with CK variety, the effective spikes of Qianyou 88, Yinong 1, Qiannanyou 2058 were increased by 15.1%, 24.5% and 3.5% resp. ; their 1 000-grain weight were increased by 2.7% , 4.2% and 11.4% resp. ; their total spikelets number were increased by 10.5% , 11.7% and 8.3% resp. and their biomass was 187.0, 98.0 and 220.0 g/m^2 higher. The sink capacity of Qianyou 88 and Yinong 1 were 13.4% and 16.4% bigger than that of CK resp. The advantage of dry matter production of the 3 varieties above manifested at the middle and later stage. [ Conclusion] The average yield of Qianyou 88, Yinong 1 and Qiannanyou 2058 reached 12 757.5 kg/hm^2.
出处
《安徽农业科学》
CAS
北大核心
2009年第2期540-541,543,共3页
Journal of Anhui Agricultural Sciences
基金
贵州省优秀科技教育人才省长基金资助项目(黔省专合字[2006]91号)
关键词
杂交水稻
超高产
产量构成
干物质生产
Hybrid rice
Super high yield
Yield components
Dry matter production
