几种野生地被植物高温半致死温度的确定  

Measurement of Heat LT_(50) in Several Wild Ground Covers Plants

作　　者：何文华[1] 董丽[1] 孙震[1] 

机构地区：[1]北京林业大学园林学院,北京100083

出　　处：《西南园艺》2006年第3期10-11,共2页Southwest Horticulture

基　　金：北京市科技计划项目(H030630090011)。

摘　　要：运用电导法对几种野生地被植物的抗热性进行了研究,叶片梯度高温处理后温度与细胞伤害率之间呈现“S”型曲线,通过显著性检验,复合Logistie方程。根据公式测得几种植物的半致死高温为:甘野菊53．95℃,蛇莓53．01℃,连钱草61．16℃,玉竹65．12℃,青杞48．59℃。Heat tolerance of several wild ground covers was measured by electrical conductivity method. Sigmoid response curve existed between the relative injury value occurring in leaf tissue discs and treatment temperature, which accorded with Logistic equation. The LT50 was Dendranthema lavandulaefolium var. seticuspe 53.95℃ ,Duchesnes indica 53.01℃ ,Glechoma hederacea var. longituba 61.16 ℃ ,Polygonatum odoratum 65.12 ℃ ,Solanum septemlobum 48.59℃.

关 键 词：地被植物 抗热性 电导法 

分 类 号：S688.4[农业科学—观赏园艺]