鲜食大豆农艺性状与鲜荚产量的灰色关联分析

Gray Correlation Analysis between the Agronomic Trait and the Yield of Fresh Soybean Pod

[目的]研究长江中下游气候条件下影响大豆产量的主要因素。[方法]以江苏省南通市引进的7个推广品种为材料,利用灰色关联度分析方法,对9个农艺性状与鲜荚产量进行了关联度分析。[结果]结果表明,鲜食大豆农艺性状与产量关联度的大小依次为:单株荚数>主茎节数>生育期>分枝数>鲜百率重>株高>多荚百分率>标准荚数>出仁率。单株荚数、主茎节数是影响鲜食大豆鲜荚产量的主要因素,而出仁率、标准荚数、多荚百分率对产量影响则较小。[结论]在产量构成因素中,单株荚数、主茎节数、生育期对鲜荚产量的影响起主导作用。

[Objective] Main climatic factors affecting the soybean yield in middle/lower reaches of the Yangtze River were researched.[Method] The gray correlation analysis of 9 agronomic traits and yield of fresh pods of 7 leading soybean varieties,introduced from Nantong City,Jiangsu Province,were analyzed.[Results] The results showed that the correlation degree of the agronomic trait of fresh soybean and its yield was： the number of pod per plant 〉 the number of main stem 〉 the growth period 〉 the number of branch 〉 the weight offresh 100-grain 〉 plant height〉 the percentage of multi-pod 〉 the number of standard pod 〉 the rate of grain to pod.The main factors affecting the fresh soybean yield was the number of pod per plant and the number of main stem.The fresh soybean yield was less affected by the rate of grain to pod,the number of standard pod and the percentage of multi-pod pollution.[Conclusion] In the yield components,the number of pod per plant,the number of main stem,the growth period played a leading role in the fresh pod yield.