棉乡368棉花产量因素品质性状相关分析及高产结构指标研究  

Study on the Correlation Analysis of Yield Factors Traits and High Yield Structure Index for Cotton Mianxiang 368

作　　者：孙长法 陈荣江[2] 田土星 

机构地区：[1]河南省新乡市锦科棉花研究所,河南新乡453731 [2]河南科技学院

出　　处：《现代农业科技》2014年第13期9-11,共3页Modern Agricultural Science and Technology

基　　金：河南省重点科技攻关项目"低酚棉优质抗虫新品种选育模型研究"(112102110089)

摘　　要：利用通径分析、回归分析等方法对棉乡368品种在2006—2007年河南省短季棉区试及2009年生产试验中所得数据资料进行统计分析,结果表明院密度、株铃、铃重的最终效应均极显著,其中密度为负效应,而衣分、子指的效应不显著。实现高产,应在合理密植的基础上,力争株铃、确保铃重为主攻方向。各品质因素性状对纺纱指数的通径分析结果表明院最终效应（绝对值）依次为院比强度〉2.5%跨长〉整齐度〉伸长率（负）〉麦克隆值（负）。足见纤维品质的长、细、强度及整齐度对提高纺纱指数至关重要。模拟高产结构指标参数为院密度5.170万～5.304万株/hm2,株铃9.24～9.65个,铃重5.16～5.31 g,衣分39.27%～39.71%,期望产量1 437.33～1 461.38 kg/hm2。Using path analysis,regression analysis and other methods,the statistic data of Mianxiang 368 cotton variety in short season cotton regional trial in 2006--2007 and production trial in 2009 were analyzed.The results showed that, the ultimate effects of density, boll, boll weight were significant ,the effect of density was negative ,and that of lint percentage and seed index was not significant. The variety with high yield should be based on reasonable close planting, and strive to ensure that the boll weight was the main direction. Path analysis results of each quality trait to spinning index showed that, the ultimate effect （absolute value ）were as follows, the strength〉2.5% span length〉uniformity〉elongation （negative）〉mieronaire value （negative）. So long, the length, fineness, strength and uniformity of fiber quality were very important to improve the spinning index. Simulation high yield structural index parameters were as follows ,density 51.70 thousand-53.04 thousand plants/hm2,per plant bells 9.24 -9.65 ,per bell weight 5.16- 5.31 g, lint percentage 39.27%-39.71%, expected output 1 437.33- 1 461.38 kg/hm2.

关 键 词：棉乡368 产量性状 品质性状 高产结构指标 回归分析 

分 类 号：S562[农业科学—作物学]