摘要
以24份大茎野生种与南涧果蔗的正反交后代为材料,对其7个重要农艺性状进行相关性、主成分和聚类分析及综合评价。结果表明,同一植期试验中不同种质材料间各农艺性状存在差异,同一种质材料在不同植期的试验中各农艺性状指标也存在差异。不同农艺性状的变异系数为11.17%~43.37%,其中糖产量和蔗茎产量的变异最大,分别为43.37%和42.20%,株高的变异较小。相关分析表明,蔗茎产量和糖产量均与单茎重、有效茎数呈极显著正相关,蔗茎产量与糖产量呈极显著正相关;通过主成分分析提取了产量糖分因子、茎径糖分因子和茎径质量因子,累计贡献率达81.39%;聚类分析结果显示,在欧式距离6.00处将24份种质材料分为3个类群,其与主成分得分结果基本一致,其中类群Ⅲ的7个农艺指标表现优异,具有高产高糖特性,云瑞12-38-27、云瑞12-38-18、云瑞12-9-45、云瑞12-9-9和云瑞12-38-29等5份材料的综合评价D值排前5位。
A total of 24 progenies from Saccharum robustum L.and Nanjian chewing cane through reciprocal crosses were used.Correlation analysis,principal component analysis,cluster analysis,and comprehensive evaluation associated with seven important agronomic traits were performed.The results showed that there were differences in agronomic traits among different germplasm materials in the same planting period experiment,and there were differences in agronomic traits among different planting period experiment in the same germplasm materials.The variation coefficient of agronomic traits ranged from 11.17%to 43.37%.The variation of sugar yield and sugarcane stalk yield was the largest,which was 43.37%and 42.20%,respectively,the variation of plant height was small.The correlation analysis showed that sugarcane stalk yield and sugar yield were significantly positively correlated with single stalk weight and effective stalk number,respectively,and sugarcane stalk yield was significantly positively correlated with sugar yield.The yield-sugar factor,stalk diameter-sugar factor and stalk diameter-quality factor were extracted via principal component analysis,and the cumulative contribution rate was 81.39%.The results of cluster analysis showed that the 24 germplasm materials were divided into three groups at the Euclidean distance of 6.00,which were basically consistent with the results of principal component scores.Among them,the seven agronomic indexes of group Ⅲ were excellent,with high yield and high sugar.Yunrui 12-38-27,Yunrui 12-38-18,Yunrui 12-9-45,Yunrui 12-9-9 and Yunrui 12-38-29 ranked top five based on their comprehensive evaluation D values.
作者
俞华先
安汝东
桃联安
郎荣斌
边芯
张钰
刘新龙
刘家勇
赵丽萍
刘洪博
张革民
张保青
Yu Huaxian;An Rudong;Tao Lianan;Lang Rongbin;Bian Xin;Zhang Yu;Liu Xinlong;Liu Jiayong;Zhao Liping;Liu Hongbo;Zhang Gemin;Zhang Baoqing(National Key Laboratory for Biological Breeding of Tropical Crops,Kunming 650205,Yunnan,China;Sugarcane Research Institute,Yunnan Academy of Agricultural Sciences/Yunnan Key Laboratory of Sugarcane Genetic Improvement,Kaiyuan 661699,Yunnan,China;Sugarcane Research Institute of Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Sugarcane Genetic Improvement,Nanning 530000,Guangxi,China)
出处
《作物杂志》
北大核心
2026年第1期94-103,共10页
Crops
基金
国家重点研发计划项目(2022YFD2301100)
广西甘蔗遗传改良重点实验室开放课题项目(21-238-16K-01-01)
云南省农业基础研究联合专项(202301BD070001-226)。
关键词
大茎野生种
南涧果蔗
农艺性状
主成分分析
隶属函数法
综合评价
Saccharum robustum L.
Nanjian chewing cane
Agronomic traits
Principal component analysis
Membership function method
Comprehensive evaluation
