| 引用本文： |
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边 芯，董立华，孙有芳，桃联安，朱建荣，周清明，杨李和，安汝东，郎荣斌，俞华先，冯 蔚，经艳芬.云南割手密及其血缘F1代材料抗旱相关性状的主成分分析[J].大英文模板1,2014,(3):56-61. [点击复制]
- 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.Principal component analysis of drought resistance related traits of Saccharum spontaneum L. and its F1 hybrids[J].大英文模板1,2014,(3):56-61. [点击复制]
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| 摘要: |
| 本研究对15个云南不同生态型割手密血缘F1代创新种质材料及其亲系共28个材料，在自然生长与干旱胁迫条件下的生长发育状况密切相关的13个指标进行主成分与模糊聚类分析，综合评价参试材料的抗旱性。试验结果表明：(1) 叶绿素因子、地下干物质积累因子和地上干物质积累因子等前6个主成分因子方差累计贡献率达90.11%，可代表原始指标的大部分信息量；(2) 利用抗旱性度量值将参试材料聚为4大类6个亚类，聚入第Ⅰ类的共有4个创新种质材料，占参试材料的14.3%，尤其是云割F108-317、云割F108-319表现出较强的抗旱性；第Ⅱ、Ⅲ类材料分别占参试材料的42.9%、39.3%，都分为2个亚类，其中云割F108-392、云割F108-391、云割F108-511、云割F108-397、云割F108-617等5个创新种质材料，可在育种实践中优先利用；云割F108-541单独聚为第Ⅳ类，其抗旱性还有待进一步研究。 |
| 关键词: 云南割手密 抗旱性 主成分分析 聚类分析 |
| DOI： |
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| 基金项目:国家甘蔗产业体系遗传育种研究室岗位专家资助项目（YCYTX-024-01-03）；云南省高产高糖强宿根甘蔗新品种选育及产业化开发资助项目（2012BB014) |
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| Principal component analysis of drought resistance related traits of Saccharum spontaneum L. and its F1 hybrids |
| 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 |
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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. |
| Key words: Saccharum spontaneum L. drought resistance principal component analysis cluster analysis |
