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一个紫云英F;重组自交系群体的农艺性状与养分吸收评价北大核心CSCD
引用本文:任文静,吕玉虎,周国朋,常单娜,向春阳,曹卫东. 一个紫云英F;重组自交系群体的农艺性状与养分吸收评价北大核心CSCD[J]. 草业学报, 2022, 31(2): 101-110. DOI: 10.11686/cyxb2020553
作者姓名:任文静  吕玉虎  周国朋  常单娜  向春阳  曹卫东
作者单位:1.天津农学院农学与资源环境学院,天津 300384;2.信阳市农业科学院,河南 信阳 464000;3.中国农业科学院农业资源与农业区划研究所,农业农村部植物营养与肥料重点实验室,北京 100081
基金项目:国家绿肥产业技术体系(CARS-22);中国农业科学院科技创新工程,国家作物种质资源库绿肥分库(NCGRC-2021-19);绿肥种质资源的收集、鉴定、编目、繁种与入库保存(19210161)资助。
摘    要:利用以闽紫7号紫云英为母本、信阳种紫云英为父本获得的F;代群体,评价了该群体18个株系的农艺性状和养分吸收状况,为筛选优异紫云英株系做参考。结果表明,在盆栽条件下,不同株系紫云英在盛花期表现出一定的性状变异。相关性分析表明,鲜重、干重与氮、磷、钾积累量相关性高,对植株的养分吸收影响较大;株高、分枝数、真叶数是影响植株地上部鲜重、干重的重要因素。主成分分析表明,地上部鲜重、干重以及地上部氮、磷、钾积累量是反映紫云英株系性状优劣的主要指标。聚类分析结果显示,当距离系数d=25时,18份紫云英材料可分为3类,其中Ⅰ类群综合性状最优,包括m83xzh-1-4-4、m83xzh-1-4-6、m83xzh-1-4-8和m83xzh-1-4-13共4个株系。综合考虑紫云英生长性状、鲜草产量及植株养分积累量等因素,m83xzh-1-4-4的地上部磷、钾积累量和地下部氮、钾积累量最高,每盆分别高达11.00 mg,145.18 mg,22.15 mg和15.27 mg,同时该株系具有较高的鲜草产量,每盆高达44.63 g。本研究可为后续按目标性状选育紫云英新品种提供参考。

关 键 词:紫云英  株系  养分吸收  聚类分析
收稿时间:2020-12-09
修稿时间:2020-12-24

Evaluation of agronomic traits and nutrient absorption of an F4 recombinant inbred line of Chinese milk vetch(Astragalus sinicus)
REN Wen-jing,LV Yu-hu,ZHOU Guo-peng,CHANG Dan-na,XIANG Chun-yang,CAO Wei-dong. Evaluation of agronomic traits and nutrient absorption of an F4 recombinant inbred line of Chinese milk vetch(Astragalus sinicus)[J]. Acta Prataculturae Sinica, 2022, 31(2): 101-110. DOI: 10.11686/cyxb2020553
Authors:REN Wen-jing  LV Yu-hu  ZHOU Guo-peng  CHANG Dan-na  XIANG Chun-yang  CAO Wei-dong
Affiliation:1.College of Agronomy and Resources and Environment,Tianjin Agricultural University,Tianjin 300384,China;2.Xinyang Academy of Agricultural Sciences,Xinyang 464000,China;3.Key Laboratory of Plant Nutrition and Fertilizer,Ministry of Agriculture,Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China
Abstract:In this research an F4 inbred line of Chinese milk vetch was constructed using Minzi No.7 milk vetch (Astragalus sinicus) as the female parent and the variety Xinyang as the male parent. For 18 strains in this population, the agronomic traits and nutrient absorption status were evaluated in a pot experiment at the full flowering stage, in order to use the results as a reference for screening superior milk vetch strains. Differences between plant strains were found. Correlation analysis showed that fresh weight, dry weight and accumulation of nitrogen, phosphorus and kalium were highly correlated, and were drivers of plant nutrient absorption, while plant height, branch number and leaf number were important factors affecting the fresh weight and dry weight of the plant. Principal component analysis showed that the main indexes such as shoot fresh and dry weights, and accumulation of nitrogen, phosphorus and kalium in the shoots could be used as indexes of Chinese milk vetch performance. In cluster analysis with the distance coefficient d=25, the 18 tested strains could be classified into three groups, of which Group Ⅰ had 4 strains (m83xzh-1-4-4, m83xzh-1-4-6, m83xzh-1-4-8, and m83xzh-1-4-13) with excellent multivariate trait scores. The best performing Chinese milk vetch strain in this evaluation was m83xzh-1-4-4. For this strain, the total plant nitrogen, phosphorus and kalium nutrient accumulation, accumulation of phosphorus and kalium in the shoots and accumulation of nitrogen and kalium in the roots were highest among the18 strains tested and were 11.00 mg·pot-1, 145.18 mg·pot-1, 22.15 mg·pot-1 and 15.27 mg·pot-1, respectively. The herbage fresh yield of m83xzh-1-4-4 was 44.63 g·pot-1 and ranked second among the 18 strains tested. This study provides technical data which may be useful in future breeding work to develop new milk vetch varieties.
Keywords:Chinese milk vetch  strains  nutrient absorption  cluster analysis
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