摘要
1984—1989年于济南研究诸因素对病害流行的作用。研究表明,大豆品种抗性和初始毒源数量为病害流行的主导因素。大豆幼苗期最感病,开花期为发病高峰。在春大豆苗期温度偏高雨量偏少及夏大豆苗期温度偏低雨量偏多的情况下,有利花叶病发生。对13种蚜虫进行饲毒接毒试验,证明桃蚜(Myzus persicae)、豆蚜(Aphis craccivora)和大豆蚜(Aphisglycines)可传毒,对病害田间流行有重要影响。对5年的16组数据应用IBM微机进行逐步回归和通径分析,组建发生预测模型。
Some epidemiological factors of SMV were studied in Jinan,Shan-
dong Province from 1984 to 1989.The results indicated that the resistance
of soybean cultivars and the amount of primary inoculum sources domi-
nated the dynamic aspects of SMV epidemics.It was found that the Soy-
bean was easiestly infected by SMV during seedling stage and the peak
of disease incidence happened during flowering stage.During seedling
stage higher temperature and less rain for spring cropping soybean and
lower temperature and more rain for summer cropping soybean were fa-
vourable to disease development.Vector-transmission experiments with
13 species of aphis showed that Myzus persicae,Aphis craccivora and A.
glycines were the major vectors which played an important role in trans-
mission of SMV in soybean fields.Models of disease occurence forecast
were established by means of stepwise regression and path analysis on
16 groups of data obtained in 5 years.
出处
《植物保护学报》
CAS
CSCD
北大核心
1991年第3期267-271,共5页
Journal of Plant Protection
关键词
大豆
花叶病
流行
预测
soybean mosaic virus
epidemiological factors
predictive model
aphid vectors
