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
운남할수밀급기혈연 F1대재료항한상관성상적주성분분석
Principal component analysis of drought resistance related traits of Saccharum spontaneum L .and its F1 hybrids
  • 万方数据
    干旱地区农业研究 간한지구농업연구
    AGRICULTURAL RESEARCH IN THE ARID AREAS
    2014年 3期 56-61 ,共6页

    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

    변심%동립화%손유방%도련안%주건영%주청명%양리화%안여동%랑영빈%유화선%풍위%경염분

    云南割手密%抗旱性%主成分分析%聚类分析 雲南割手密%抗旱性%主成分分析%聚類分析
    운남할수밀%항한성%주성분분석%취류분석
    Saccharum spontaneum L .%drought resistance%principal component analysis%cluster analysis
    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。
    본연구대15개운남불동생태형할수밀혈연F1대창신충질재료급기친계공28개재료，재자연생장여간한협박조건하적생장발육상황밀절상관적13개지표진행주성분여모호취류분석，종합평개삼시재료적항한성。시험결과표명：（1）협록소인자、지하간물질적루인자화지상간물질적루인자등전6개주성분인자방차루계공헌솔체90．11％，가대표원시지표적대부분신식량；（2）이용항한성도량치장삼시재료취위4대류6개아류，취입제Ⅰ류적공유4개창신충질재료，점삼시재료적14．3％，우기시운할F108-317、운할F108-319표현출교강적항한성；제Ⅱ、Ⅲ류재료분별점삼시재료적42．9％、39．3％，도분위2개아류，기중운할F108-392、운할F108-391、운할F108-511、운할F108-397、운할F108-617등5개창신충질재료，가재육충실천중우선이용；운할F108-541단독취위제Ⅳ류，기항한성환유대진일보연구。
    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-re-sistance value .Group Ⅰ included four tested materials ,accounting for 14 .3% of the total lines with YG F1 08-317 and YG F1 08-319 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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