| 甘薯水分关系的主分量分析 |
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| 引用本文： | 陈京,王稳地.甘薯水分关系的主分量分析[J].西南师范大学学报(自然科学版),1994,19(1):79-83. |
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| 作者姓名： | 陈京 王稳地 |
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| 作者单位： | 西南师范大学生物系，西南师范大学数学系，中国科学院云南昆明植物研究所 |
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| 摘 要： | 运用多元统计数学中主分量分析的方法计算和比较了甘薯离体叶片的水势、相对含水量、束缚水、水分饱和亏缺、质膜透性、丙二醛和游离脯氨酸含量等植物水分生理指标的变化。结果指出：水势、相对含水量和丙二醛等对水分胁迫作出反应的敏感程度较高。表明主分量分析方法是综合评价甘薯抗旱生理指标的一种好的研究方法。
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| 关 键 词： | 甘薯 水分 主分量分析 |
THE PRINCIPAL COMPONENT ANALYSIS ON WATER RELATION IN SWEET POTATO |
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| Chen Jing,Wang Wendi,Li Rongtao,Zhang Qitang.THE PRINCIPAL COMPONENT ANALYSIS ON WATER RELATION IN SWEET POTATO[J].Journal of Southwest China Normal University(Natural Science),1994,19(1):79-83. |
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| Authors: | Chen Jing Wang Wendi Li Rongtao Zhang Qitang |
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| Abstract: | The changes of plant water physiological indices,e.g. water potential relative water content,bonding water,water saturation deficit,plasma membrane penetration, malondialdehyde(MDA)and free proline contents and so on from free leaves of sweet potato(Ipomoea batatas CV. Yu Shu 34)are calculated and compared by using the method of principal component analysis of polystatistics maths. The results show that the senstive degree of water potential,relative water content and MDA respond-ing to water stress is higher than the other indices. It indicates that the method of principal component analysis is a good research method to generally evaluate the sweet potato' s drought resistance physio-logical indices. |
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| Keywords: | sweet potato water relation principal component analysis Dept of Mathematics Southwest China Teachers Univereity Dept of Mathematics Southwest China Teachers University |
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