连作栽培中自毒物质对黄瓜种子萌发和幼苗生长的影响  

Effect of Autointoxication in Monoculture on Cucumber Seed Germination and Seedling Growth

作　　者：冯志红[1] 闫立英[1] 王久兴[1] 张慎好[1] 宋士清[1] 

机构地区：[1]河北科技师范学院园艺园林系,秦皇岛066600

出　　处：《种子》2005年第6期41-44,共4页Seed

摘　　要：对黄瓜自毒作用的研究表明,黄瓜根系分泌物、根系浸提液、植株残体分解产物对黄瓜种子的萌发、幼苗的生长和某些生理活性均有显著的影响。根系分泌物、根系浸提液抑制了种子的萌发和幼苗的生长;植株残体的分解产物对种子萌发表现为抑制作用,对幼苗的生长表现为促进作用,且随着浓度的增加,促进作用更为明显。studies on the autointoxication of cucumber showed that root exudates and aqueous extracts and decomposition of cucumber stray affected the seed germination and seedling growth and some physiology activity.Root exudates and aqueous extracts significantly inhibited seed germination and seedling growth.Decompositio of cucumber stray inhibited seed germination and stimulated seedling growth,stimulating effects were better with increasing concentration.

关 键 词：种子萌发 幼苗生长 连作栽培 根系分泌物 物质 分解产物 植株残体 自毒作用 黄瓜种子 生理活性 抑制作用 生长表现 浸提液 

分 类 号：S512.1[农业科学—作物学] S681.7