不同豇豆品种性状比较及产量与品质的相关性分析

Characters Comparison of Different Cowpea Varieties and Correlation Analysis Between Yield and Qualities

为开展优质、高产豇豆新品种引进筛选工作,本研究以6个豇豆品种和1个本地品种为试材,采取随机区组试验,比较了豇豆的主要农艺性状、品质性状及产量,并对产量与品质性状的相关性进行了分析。结果表明:豇豆各品种主要农艺性状差异明显,第一开花节位除“特长903”外,均与对照差异显著,单株分枝数“特选901”最多,与对照及其余品种呈显著性差异,单荚质量“特选901”最大,荚长青豇909最长,荚宽“特长903”宽度最小,均与对照差异显著。豇豆蛋白质、维生素C含量和产量性状之间存在正相关关系,且维生素C含量与产量性状之间的相关性达到极显著水平,相关系数为0.833547,可溶性糖、粗纤维含量与产量性状之间存在一定的负相关关系,且绝对值r4>r1>r3>r2,表明维生素C、蛋白质这2个品质性状与产量性状关联度很高,可溶性糖、粗纤维与产量性状的关联度不高。在豇豆育种工作中可以将产量和蛋白质、维生素C含量同步选择。

In order to introduce and screen new varieties of cowpea with good quality and high yield,the comparative test for six varieties and one local variety was designed by random grouping and three times of repetition.Mainly agronomic traits and quality and yield characteristics of cowpea were determined.It mainly analyzed the correlation between quality characters and yield of cowpea.It could provide reference for cowpea directional breeding and variety screening.The results showed that the difference on cowpea mainly agronomic traits of each type was obviously,the first flowering node in addition to the“Special 903”,and contrast difference significantly,the number of branches per plant of“Selected 901”was the most,and comparison and variety show significant difference,the single pod quality“Selected 901”was largest,the pod length“Green cowpea 909”was the longest,the pod width“special 903”was the narrowest,with significant difference.there was positive correlation between cowpea protein vitamin C,protein content and yield traits,and the correlation between vitamin C content and yield characteristics reached extremely significant level,the correlation coefficient was 0.833547.The results also showed negative correlation between soluble sugar,crude fiber content and yield characteristics,and absolute r4>r1>r3>r2,showed that high correlation between protein vitamin C,protein content and yield traits,and low correlation between soluble sugar,crude fiber and yield traits.In cowpea breeding work,the yield can be selected synchronously with the content of protein and vitamin C.