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。
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.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1994年第1期79-83,共5页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
甘薯
水分
主分量分析
sweet potato
water relation
principal component analysis Dept. of Mathematics, Southwest China Teachers Univereity.Dept. of Mathematics. Southwest China Teachers University.
