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机构地区:[1]福建省莆田市农业科学研究所,福建莆田351144
出 处:《江西农业学报》2009年第11期7-9,共3页Acta Agriculturae Jiangxi
基 金:福建省莆田市科技重点项目(2003N28)
摘 要:用多元遗传统计分析方法分析了27个花生品种13个性状的遗传关系。结果表明:单株单仁果数、单株荚果重、单株双仁果数的变异系数较大,分别为44.76%、19.07%和17.53%,饱果率、出仁率和总分枝数等变异系数较小,分别为3.23%、7.35%和9.52%;小区产量与单株荚果干重、单株果数、单株双仁果数、百果重和百仁重分别呈极显著正相关,与总分枝数和单株单仁果数呈显著正相关,但与主茎高和第一对侧枝长呈极显著负相关;前4个主成分对变异的累计贡献率达80.66%。The method of multiple genetic statistics was used to analyze the genetic correlation among 13 major agronomic characters of 27 peanut cuhivars. The results showed that the coefficient of variation of single - kernel pods per plant, weight of pods per plant and two - kernel pods per plant was higher, being 44.76%, 19.07% and 17.53% respectively, while that of the rate of filled pods per plant, kernel production rate and total branches per plant was lower, being 3.23%, 7.35% and 9.52% respectively. The plot yield was extremely significantly positively correlated with dry weight of pods per plant, pods per plant, two - kernel pods per plant, 1130 - pod weight and 100 - kernel weight ( P 〈0.01 ), and was significantly positively correlated with the total branches per plant and single - kernel pods per plant ( P 〈 0. 05), while it was extremely significantly negatively correlated with the height of main stem and the length of first couple branches. The accumulative contributive rate of the first 4 main components to variation was 80.66%.
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