不同木薯品种(系)农艺性状分析及高产品种(系)筛选  

Analysis of Agronomic Characteristics of Different Cassava Varieties(Lines)and Screening of High-Yielding Varieties(Lines)

作　　者：肖明昆 刘光华[2] 宋记明[1] 刘倩[1] 段春芳[1,3] 姜太玲 张林辉 严炜[1] 沈绍斌 周迎春[1] 熊贤坤[1] 罗鑫[1] 白丽娜[1] 李月仙 Xiao Mingkun;Liu Guanghua;Song Jiming;Liu Qian;Duan Chunfang;Jiang Tailing;Zhang Linhui;Yan Wei;Shen Shaobin;Zhou Yingchun;Xiong Xiankun;Luo Xin;Bai Lina;Li Yuexian(Tropical and Subtropical Cash Crops Research Institute,Yunnan Academy of Agricultural Sciences,Baoshan 678000,Yunnan,China;Biotechnology and Genetic Germplasm Resource Research Institute,Yunnan Academy of Agricultural Sciences,Kunming 650205,Yunnan,China;Baoshan Quanxin Agricultural Science and Technology Co.,Ltd.,Baoshan 678000,Yunnan,China)

机构地区：[1]云南省农业科学院热带亚热带经济作物研究所,云南保山678000 [2]云南省农业科学院生物技术与种质资源研究所,云南昆明650205 [3]保山全心农业科技有限公司,云南保山678000

出　　处：《作物杂志》2022年第4期77-82,共6页Crops

基　　金：国家木薯产业技术体系保山综合试验站(CARS-11-YNLGH);滇桂黔石漠化地区特色作物产业发展关键技术—云南低热河谷石漠化生态循环农业模式集成示范(2019-2021);保山市第八批中青年学术和技术带头人(201905);云南省技术创新人才培养对象(2017HB131);刘国道专家工作站(202005AF150021)。

摘　　要：为了解影响木薯产量的主要因素,筛选高产木薯品种(系),通过主成分分析对10个品种(系)的9个主要农艺性状指标进行量化对比分析。结果表明,10个木薯品种(系)的农艺性状除落叶高度和块根粗无显著差异外(P>0.05),其余农艺性状间均具有显著差异(P<0.05),品种(系)SC9、SC124和58-7的农艺性状变异较大,农艺性状中又以单株产量、地上鲜重、鲜薯个数和主茎粗的变异系数最大。鲜薯个数、块根长和块根粗是影响单株产量的关键因子。通过主成分分析提取了2个主成分,累积方差贡献率达88.1%,反映了农艺性状指标的基本信息,其中,鲜薯个数是第1主成分的主导变量,块根长是第2主成分的主导变量。10个木薯品种(系)中,SG-9的综合得分最高,GMT和SC9的产量优势明显,可作为种植推广的品种。In order to explore the main factors affecting the yield of cassava,and screen high-yielding cassava varieties(lines),nine main agronomic traits of ten cassava varieties(lines)were compared and analyzed by using principal component analysis.The results showed that the agronomic traits of ten cassava varieties(lines)had significant differences(P<0.05)except deciduous height and root thick(P>0.05).The agronomic traits of SC9,SC124 and 58-7 had great variation.Among agronomic traits,the variation coefficients of yield per plant,aboveground fresh weight,number of fresh tubers and stem diameter were the largest.The number of fresh tubers,root length and thick were the key influencing factors of yield per plant.Two principal components were extracted by principal component analysis,and the cumulative variance contribution rate reached 88.1%,which reflected the basic information of agronomic traits.Among them,the number of fresh tubers was the dominant variable of the first principal component,and root length was the dominant variable of the second principal component.Among the ten cassava varieties(lines),SG-9 had the highest comprehensive score,GMT and SC9 had obvious yield advantages and could be used as planting and extension varieties.

关 键 词：木薯 农艺性状 相关性分析 主成分分析 聚类分析 筛选 

分 类 号：S533[农业科学—作物学]