机构地区:[1]四川省农业科学院蚕业研究所,四川南充637000 [2]南充市农业农村局,四川南充637000
出 处:《草业科学》2022年第11期2403-2413,共11页Pratacultural Science
基 金:四川省科技创新苗子工程项目(2021063);四川省财政自主创新项目(2022ZZCX086)。
摘 要:为评价野豌豆属(Vicia)种质资源农艺性状、产量及品质,开发和利用野豌豆属种质资源,本研究以收集的7份窄叶野豌豆和13份救荒野豌豆种质材料为研究对象,测定关键农艺性状、产量和营养成分,并采用遗传变异分析、相关性分析、聚类分析以及隶属函数分析对20份野豌豆种质材料进行分析和综合评价。结果表明,20份野豌豆种质材料农艺性状遗传多样性丰富,变异系数范围为5.08%~25.93%,平均变异系数为16.62%,其中,变异系数最大的是茎叶比和复叶宽,分别为25.93%和21.66%。W20鲜草和干草产量最高,分别为23241.67和3044.45 kg·hm-2。W7粗蛋白含量最高,达27.39%;W1的中性洗涤纤维含量和W17的酸性洗涤纤维含量含量最低,分别为26.04%和19.33%。相关性分析表明,株高与叶轴长、复叶长、干草产量呈显著正相关关系(P<0.05),与复叶宽和鲜草产量呈极显著正相关关系(P<0.01)。聚类分析将20份野豌豆种质材料分为4个类群,第1类群具有植株较高大、叶轴和荚长较长、千粒重高、中性洗涤纤维和酸性洗涤纤维含量低等特征,可作为多目标性状选育的中间材料;第2类群的3份种质每荚粒数最多,其余性状不突出,可作为选育籽粒产量高的优良亲本;第3类群小叶数多,粗蛋白含量高,复叶较窄,可作为选育高密度栽培和高蛋白材料的优良亲本;第4类群仅包含1份种质,生物产量高,复叶宽大,可作为选育高产品种的优良亲本。隶属函数平均值排名前5的种质材料分别为W20、W7、W5、W13和W11,性状较优良,饲用价值高,可根据不同用途和育种需求选择利用。This study aimed to evaluate the agronomic,yield,and quality characteristics of 20 Vicia germplasm resources for the future development and cultivation of Vicia germplasm resources.The key agronomic characteristics,yield,and nutritional components of the 20 collected Vicia germplasm resources were determined.The diversity of the agronomic characteristics was analyzed and comprehensively evaluated by genetic variation,correlation,cluster,and membership function analyses.The genetic diversity was found to be rich,with the coefficient of variation ranging from 5.08%to 25.93%,and the average coefficient of variation being 16.62%.Among them,the largest coefficients of variation were stemleaf ratio and compound leaf width,which were 25.93%and 21.66%,respectively.W20 had the highest fresh and hay yields,at 23241.67 and 3044.45 kg·hm-2,respectively.The crude protein content of W7 was the highest,up to 27.39%;W1 and W17 had the lowest neutral and acid detergent fiber contents,at 26.04%and 19.33%,respectively.Correlation analysis showed that plant height was significantly positively correlated with leaf axis length,compound leaf length,and hay yield(P<0.05)and significantly positively correlated with compound leaf width and fresh yield(P<0.01).When the Euclidean metric was 10,the 20 Vicia germplasm resources were divided into four groups.The first group contains tall plants,long leaf axis and pod length,high thousand-grain weight,and low neutral and acid detergent fiber content,which can be used as intermediate materials for multi-objective trait breeding.Group 2 contains three germplasms with the largest number of grains per pod,while other characters are not prominent;this group could be an excellent parent to cultivate high grain yielding varieties.Group 3 has many leaflets,high crude protein content,and narrow compound leaves.It can serve as an excellent parent for breeding high-density cultivation and high-protein materials.Group 4 contains only one germplasm having a high biological yield and wide compound leaves.Th
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...