| Principal component analysis of drought resistance related traits of Saccharum spontaneum L. and its F1 hybrids |
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| DOI：10.7606/j.issn.1000-7601.2014.03.010 |
| Key Words: Saccharum spontaneum L. drought resistance principal component analysis cluster analysis |
| Author Name | Affiliation | | BIAN Xin, DONG Li-hua, SUN You-fang, TAO Lian-an, ZHU Jian-rong, ZHOU Qing-ming, YANG Li-he, AN Ru-dong, LANG Rong-bin, YU Hua-xian, FENG Wei, JING Yan-fen | （云南省农业科学院甘蔗研究所瑞丽育种站， 云南 瑞丽 678600） |
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| Abstract: |
| Principal component and cluster analysis were used for comprehensive evaluation on drought resistance related traits of 28 lines of S. spontaneum L., including 15 F1 and their parents, under natural growth and drought stress. The results showed that the cumulative contribution of the first six components, such as chlorophyll and dry matter of the underground and aboveground, to total variance of the population investigated reached 90.11%, showing the largest variations. The test lines were divided into four clusters and six subgroups by clustering based on their drought-resistance value. Group Ⅰ included four tested materials, accounting for 14.3% of the total lines with YG F108-317 and YG F108-319 having the stronger drought resistance. Group Ⅱ and Ⅲ were divided into two subgroups, accountings for 42.9% and 39.3%, respectively. YG F108-392、YG F108-391、YG F108-511、YG F108-397 and YG F108-617 had practical value in breeding program. One lines of YG F108-541 belonged to Group Ⅳ. |
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