水合与渗透激发对洋葱 (Allium cepa L .)种子健康的影响(英文)  

The Effect of Hydro-and Osmopriming on Health of Onion (Allium cepa L.) Seeds

作　　者：张跃华[1] 李荣春[1] 

机构地区：[1]云南农业大学植物科学系,云南昆明650201

出　　处：《云南大学学报（自然科学版）》2001年第S1期28-34,共7页Journal of Yunnan University(Natural Sciences Edition)

摘　　要：研究了水合与渗透激发对洋葱种子带菌的影响 .把 3个样品的洋葱种子分别放在聚乙烯乙二醇(PEG)分子量 80 0 0 ,渗透势 - 1 .5MPa溶液中和蒸馏水的圆柱管里 ,进行渗透处理 .在 2 0℃温度下用马铃薯琼脂 (PDA)培养基试验来检测每一种处理的种子的带菌情况 .研究中发现 ,如果和没有处理过的种子相比较 ,用PEG处理过的洋葱种子被几种真菌主要是Penicilliumspp .的侵染率大大增加 .但是却表现出被Botrytisallii侵染的洋葱种子的百分比的降低 .然而 ,水合激发后的洋葱种子 ,其真菌的侵染率的变化根据种子样品的不同而不同 .The effect of onion seed osmopriming in polyethylene glycol (PEG) 8?000 and/or hydropriming in water on seedorne fungi were studied.Microorganisms of onion seed samples cv.Wolska were determined by the agar plate test (PDA) at 20℃ in darkness.After seed osmopriming,a considerable increases in seed infestation with several fungi,mainly with Penicillium spp.On the other hand,this treatment reduced the percentage of onion seeds infested with Botrytis allii.The effect of hydropriming on the occurrence of fungi ...

关 键 词：洋葱 种子 健康 渗透激发 水合激发 种传真菌 

分 类 号：S63[农业科学—蔬菜学]