福龙S2所配组合产量构成因素的回归分析  

Regression analysis for the yield components of the combinations with Fulong S2

作　　者：徐淑英[1] 左生力[1] 彭玉林[1] 马益虎[1] 

机构地区：[1]龙岩市农业科学研究所,福建龙岩364000

出　　处：《广东农业科学》2010年第5期17-18,共2页Guangdong Agricultural Sciences

基　　金：福建省重大科技项目(2002N011)

摘　　要：用龙岩市农业科学研究所选育的两系不育系福龙S2与9个不同的恢复系测交,以汕优46作对照,观察其F1的株高、有效穗数、每穗总粒数、结实率、千粒重、产量等性状。应用逐步回归分析法对福龙S2所配组合的主要性状进行回归分析,建立了产量构成因素的线性回归方程,并进一步作了通径分析。结果表明:建立的线性回归方程包括了所有的产量构成因素,是最优的线性回归方程;福龙优系列组合的产量构成因素中有效穗数、每穗总粒数、千粒重对产量的影响很大,其中尤以有效穗数最为重要。By testing with the same female parent Fulong S2 and 9 diferent restoring lines,the characteristics of plant height, efective panicle number for per-hole, total grain number, seed setting rate and 1000-grain weight was observed and analysized to compare with the check Shan you 46. The main traits of the incross were analysed by stepwise regression analysis, a linear regression equation for the yield components was established, and further,we had made a path analysis. The results were as follows： the linear regression equation included all yield components,it was optimal linear regression equation.Among the yield components ,the efective panicle number ,total grain numberand 1000-grain weight largely contribute to yield, particularly the efective panicle number.

关 键 词：水稻 核不育系 福龙S2 性状 回归分析 

分 类 号：S511.32[农业科学—作物学]