摘要
以农业农村部"第三次全国农作物种质资源普查与收集行动"为契机,开展了广西壮族自治区紫云英(Astragalus sinicus L.)种质资源的考察收集与评价鉴定.结果表明,收集到的58份地方资源主要分布在桂东北以及0～400 m的中低海拔地区.12项农艺性状表型分析显示其遗传多样性丰富;主成分分析将12个农艺性状分为3个主成分,分别为种子产量、生物产量及生育期特征,累计贡献率达72.089％;通过加权平均计算得出综合排名前 10位的种质资源为GXLF20180011、GXLF2019109、GXLF2019156、GXLF2019118、GXLF2019112、GXLF2019117、GXLF20180006、GXLF2019125、GXLF2019111、GXLF2019136;排名前10位的种质资源全生育期为134～147 d,盛花期茎粗(直径)为2.83～3.66 mm,盛花期株高为 41.63～54.73 cm,单株分枝数为 2.83～4.19个,每分枝花序数为 5.85～6.99个,总花序数为17.55～26.23个/株,结荚花序数为14.33～19.97个/株,鲜草产量为10 458.15～48 792.75 kg/hm2,干草产量为1 037.36～5 724.34 kg/hm2,种子产量为246.75～991.20 kg/hm2.
Abstract
Taking the opportunity of the"Third National Crop Germplasm Resources Census and Collection Action"of the Ministry of Agriculture and Rural Affairs,the investigation,collection,evaluation and identification of Astragalus chinensis L.germplasm resourc-es in Guangxi were carried out.The results showed that the 58 collected local resources were mainly distributed in the middle and low altitude areas of 0～400 meters in northeastern Guangxi.Phenotypic analysis of 12 agronomic traits showed rich genetic diversity.Prin-cipal component analysis divided 12 agronomic traits into 3 principal components,namely seed yield,biological yield,and growth pe-riod characteristics,with a cumulative contribution rate of 72.089％.By weighted average calculation,the top 10 germplasm resources in the comprehensive ranking were GXLF20180011,GXLF2019109,GXLF2019156,GXLF2019118,GXLF2019112,GX-LF2019117,GXLF20180006,GXLF2019125,GXLF2019111,and GXLF2019136.The total growth period of the top 10 germplasm resources was 134～147 d,with stem diameter of 2.83～3.66 mm during the peak flowering period,branch length of 41.63～54.73 cm during the peak flowering period,branch number per plant of 2.83～4.19,flower number per branch of 5.85～6.99,total flower number of 17.55～26.23 per plant,pod bearing flower number of 14.33～19.97 per plant,and fresh grass yield of 10 458.15～48 792.75 kg/hm2,hay yield of 1 037.36～5 724.34 kg/hm2,and seed yield of 246.75～991.20 kg/hm2.
基金项目
国家绿肥产业技术体系项目(CARS-22)
广西自然科学基金项目(GXNSFBA026335)
广西创新驱动发展专项资金项目(桂科AA17204045-10)
广西科技先锋队"强农富民"、"六个一"专项行动项目(桂农科盟202313)
广西壮族自治区农业科学院科技发展基金项目(桂农科2021YT037)
广西农业科学院基本科研业务专项(桂农科2023YM66)
维普
万方数据