有效积温对中华常春藤叶片生长和衰老的影响  

The Effects of Effective Accumulation Temperature on Growth and Senescence of Hedera Nepalensis Var.Sinensis's Leaf

作　　者：陈靖晖[1] 郜炜[1] 刘本玉[1] 

机构地区：[1]云南大学,云南昆明650091

出　　处：《廊坊师范学院学报（自然科学版）》2010年第1期60-62,共3页Journal of Langfang Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50678156);云南省自然科学基金资助项目(2006E0010Q)

摘　　要：通过测定中华常春藤叶片生长期和衰老期的叶长、叶宽、叶面积和有效积温,建立叶片生长和衰老过程的回归方程,并根据方程绘制出对应曲线。经分析发现中华常春藤叶片的叶长优先伸长,并且叶长比叶宽先达到生长最大值,而最大叶长小于最大叶宽;叶片枯萎率随有效积温延续的变化呈"J"形曲线,而叶片衰老速度变化趋于钟罩型单峰曲线。During the growth and senescence period of the hedera nepalensis vat. sinensis＇s Leaf, measuring the leaf length, leaf width, single leaf area and effective accumulation temperature, the growth and senescence regressive equation were set up, and then the curves were drawn on the basis of them. The results indicated that the leaf length which grows first achieves maximum value earlier than the leaf width, but the maximum value of the leaf length is less than the leaf width. The senescence rate to the effective accumulation temperature is ＂J＂ curve, and the speed of the leaf senescence appears Lampshade-single peak curve along with the effective accumulation temperature.

关 键 词：中华常春藤 叶片 有效积温 生长 衰老 

分 类 号：S687.3[农业科学—观赏园艺]