6个大白菜品种干烧心病苗期鉴定  

Identification of Tip-burn Seedling Stage of 6 Chinese Cabbage Cultivars

作　　者：张鹤[1] 路翠玲[1] 刘国栋 刘卫红[1] 

机构地区：[1]郑州市蔬菜研究所,河南郑州450015 [2]河南省焦作市高新区国栋农业服务专业合作社,河南焦作454000

出　　处：《安徽农业科学》2016年第12期162-163,182,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探讨大白菜干烧心病的发病规律。[方法]以郑州市蔬菜研究所选育的5个大白菜品种和北京新三号为材料,采用大白菜干烧心病苗期鉴定法研究干烧心病的发病规律。[结果]干烧心的病情指数大体上是随着培养时间的延长而上升,但在缺钙培养45 d后都相继达到高感状态,在55 d后病害基本上达到稳定状态。郑白65在缺钙处理下最耐病,郑白四号耐病性最差,对钙的缺失极为敏感,缓冲能力差。郑白80在缺钙处理前期表现出较好的缓冲能力,随着处理时间的延长,后期发病迅速,其他品种也表现出不同的耐病性和敏感性,但几乎在同一时间段达到稳定的发病时期。[结论]研究结果为干烧心病的预防提供了参考。[Objective] The aim was to discuss morbidity regularity of Chinese cabbage tip-burn.[Method]With 5 Chinese cabbage cultivars from Zhengzhou City Vegetable Research Institute and Beijing Xinsanhao as material,the morbidity regularity of tip-burn was studied,so as to lay a foundation for preventing the disease.[Result] The results showed that,tip-burn is generally rise along with the extension of incubation time,but in calcium deficiency culture after 45 days have reached a high resistance state,the disease reached a stable state after 55 days.Zhengbai No.65 showed the best resistance under calcium deficiency treatment,Zhengbai No.4 disease tolerance is the worst,for the lack of calcium is extremely sensitive,low buffering capacity.Zhengbai 80 performance at the early stage of the calcium treatment better buffering capacity,with the extension of processing time,the late onset rapidly.Other varieties showed different resistance and sensitivity,but they are almost achieve stable onset at the same time period.[Conclusion] The results can provide reference for prevention of tip-burn disease.

关 键 词：大白菜 品种 干烧心 苗期鉴定 

分 类 号：S436.341.14[农业科学—农业昆虫与害虫防治]