[1]何虎翼,谭冠宁,何新民,等.63 份马铃薯品种(系)资源农艺性状的主成分与聚类分析[J].江苏农业学报,2017,(01):27-33.[doi:10.3969/j.issn.1000-4440.2017.01.005 ]
　HE Hu-yi,TAN Guan-ning,HE Xin-min,et al.Principal component and cluster analysis for agronomic traits of 63 potato varieties or clones[J].,2017,(01):27-33.[doi:10.3969/j.issn.1000-4440.2017.01.005 ]
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63 份马铃薯品种(系)资源农艺性状的主成分与聚类分析()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年01期
页码:
27-33
栏目:
遗传育种·生理生化
出版日期:
2017-02-28

文章信息/Info

Title:
Principal component and cluster analysis for agronomic traits of 63 potato varieties or clones
作者:
何虎翼; 谭冠宁; 何新民; 唐洲萍; 杨鑫; 李丽淑
（广西农业科学院经济作物研究所，广西南宁530007）
Author(s):
HE Hu-yi; TAN Guan-ning; HE Xin-min; TANG Zhou-ping; YANG Xin; LI Li-shu
(Cash Crops Research Institute,Guangxi Academy of Agricultural Sciences, Nanning 530007, China)
关键词:
马铃薯; 品种（系）; 农艺性状; 主成分分析; 聚类分析
Keywords:
potato;  varieties or clones;  agronomic trait;  principal component analysis;  cluster analysis
分类号:
S532
DOI:
10.3969/j.issn.1000-4440.2017.01.005
文献标志码:
A
摘要:
为了更好地发掘利用马铃薯种质资源，我们对63份马铃薯品种（系）的生育期、出苗率、主茎数、株高、单株块茎数、单株块茎质量、单薯质量、商品薯率、淀粉含量和产量等10个农艺性状进行主成分与聚类分析。结果表明：产量、单株块茎数、主茎数、单株块茎质量、株高和单薯质量的变异系数较大，分别为83.4%、42.9%、39.6%、32.9%、32.2%、30.9%；主成分分析发现生育期、出苗率、主茎数、株高、单株块茎数和单株块茎质量累计贡献率达85.198%，可用这6个主成分较好地代替10个农艺性状来评价马铃薯品种（系）；相关性分析结果表明，生育期与单株块茎质量、主茎数、单株块茎数呈极显著正相关；主茎数与单株块茎数呈极显著正相关，与单株块茎质量呈显著正相关；株高与单薯质量、单株块茎质量呈极显著正相关；单株块茎数与单株块茎质量呈极显著正相关，与商品薯率、单薯质量呈极显著负相关；单株块茎质量与单薯质量呈极显著正相关,单薯质量与商品薯率呈极显著正相关。聚类分析将63份马铃薯品种（系）分为5个大类，其中来自云南省农业科学院经济作物研究所资源的57.89%聚在I类群，主要特点是淀粉含量最高，但产量最低。来自中国农业科学院蔬菜花卉研究所资源的76.47%聚在IV类群，主要特点是单薯质量最大。与其他类群相比，这两大类群马铃薯品种（系）较适合广西等南方冬作区种植。生育期、出苗率、主茎数、株高、单株块茎数和单株块茎质量是广西等南方冬作区马铃薯品种筛选优先考虑的农艺指标。
Abstract:
In order to utilize potato germplasm resources better, we conducted principal component analysis and cluster analysis of ten agronomic traits including growth period, emergence rate, stem number, plant height, tuber number per plant, tuber weight per plant, weight of single tuber, marketable tuber rate, starch content and yield of 63 potato varieties or clones. The results showed that the variation coefficients of yield, tuber number per plant, stem number, tuber weight per plant, plant height and weight of single tuber were 83.4%, 42.9%, 39.6%, 32.9%, 32.2%, and 30.9%, respectively. Factor analysis showed that the accumulative contribution rate of growth period, emergence rate, stem number, plant height, tuber number per plant and tuber weight per plant reached 85.198%. So the six principal components could replace ten agronomic traits to evaluate potato varieties or clones. The correlation analysis showed that the growth period and the tuber weight per plant, main stem numer, the tuber number per plant had significantly positive correlation (P<0.05). The main stem number was positively correlated with the tuber number per plant (P<0.01) and the tuber weight per plant (P<0.05), respectively. The plant height and weight of single tuber, tuber weight per plant had significantly positive correlation. The tuber number per plant and tuber weight per plant had significantly positive correlation (P<0.01), while the tuber number per plant and marketable tuber rate, weight of single tuber had significantly negative correlation (P<0.01). The tuber weight per plant and weight of single tuber had significantly positive correlation (P<0.01). The weight of single tuber had significantly positive correlation with the rate of marketable tuber (P<0.01). Potato varieties or clones were divided into five groups by cluster analysis. Among them, 57.89% of the resources came from the Industrial Crops Institute of Yunnan academy of agricultural sciences were gathered in the group I, which was characterized by the highest starch content and the lowest yield. 76.47% of the resources came from the institute of vegetable and flower of Chinese academy of agricultural sciences were gathered in the group IV, which had the biggest weight of single tuber. These two groups were more suitable for planting in the southern regions than other groups. The growth period, emergence rate, main stem number, plant height, tuber number per plant and tuber weight per plant are the preferential agronomic indicators for potato variety screening in winter planting area.

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备注/Memo

备注/Memo:
收稿日期：2016-04-13 基金项目：国家马铃薯产业技术体系资助项目（CARS-10-ES15）；广西自然科学基金项目（2015GXNSFAA139079）；广西农业科学院科技发展基金项目（2015JZ120） 作者简介：何虎翼（1974-），男，广西北流人，博士，助理研究员，主要从事马铃薯育种和栽培技术研究。(Tel) 13517664376; (E-mail) wingtiger2008@126.com 通讯作者：谭冠宁，(Tel) 0771-3244229; (E-mail) atan508@163.com
更新日期/Last Update: 2017-04-12