摘要
[目的]从水稻引进品种中寻求适应四川地区具有优良性状的品种。[方法]以从浙江引进的秀水103等10个水稻品种为试材,以本地品种T优8061为对照,对11个水稻品种的产量进行比较,并对5个产量因子进行相关性分析、回归分析和通径分析。[结果]10个引进水稻品种中,多数品种表现高产,以浙粳41的产量最高,为5.156 t/hm2(比CK增加14.82%),其次为II优498和宁81,分别为5.077 t/hm2(比CK增加14.18%)和5.047 t/hm2(比CK增加12.30%)。相关性分析表明,有效穗与产量存在负相关(-0.790),其余均为正相关,以实粒数(0.406)和千粒重(0.415)与产量的相关性最大。回归分析表明,穗粒数、实粒数、结实率和千粒重所决定的产量变异占总变异的93.20%。[结论]在四川地区引种时,要考虑引进实粒数和千粒重高的水稻品种。
[Objective] The study aimed to seek for the varieties with good characters that was suitable for the Sichuan area from the introduced rice varieties. [ Method] With 10 rice varieties such as Xiushui introduced from Zhejiang Province as tested materials and the local variety T You 8061 as CK, the yields of 11 rice varieties were compared and their 5 yield factors were made for the analysis on the correlation, regress and path. [ Result] Among 10 introduced rice varieties, most rarities showed high yield, in which, Zhegeng 41 had highest yield of 5. 156 t/hm2 （CK ＋ 14.82% ）, followed by It You 498 and Ning 81 with the yield of 5. 077 t/hm2 （ CK ＋ 14.18% ） and 5. 047 L/hm2 （ CK ＋ 12. 30% ）resp. Correlation analysis showed that there was a negative correlation （ -0. 790） between the effective spike and yield and the positive correlations were between other yield factors with the correlations of filled grains （0. 406 ）and 1 000-grain weight（0. 415 ）being maximum. The regress analysis showed that the spike grains, filled seeds, seed-setting rates and 1 000 grain weights which determined the yield variation could account for 93.20% of total variation. [ Conclusion] When introducing the rice varieties in Sichuan area, it should be considered to introduce the rice verities with high filled seeds and 1 000-grain weights.
出处
《安徽农业科学》
CAS
北大核心
2009年第27期12984-12985,13048,共3页
Journal of Anhui Agricultural Sciences
关键词
水稻
产量因子
分析
Rice
Yield factors
Analysis
