论文部分内容阅读
孢囊线虫病(Heterodera glycines ichinohe)是为害大豆的重要病害之一。大豆发生孢囊线虫病后,发育不良,严重时整枝枯死,造成大面积减产。国内对该线虫的侵染过程、致病特点和生理病变等问题研究甚少,作者于1983～1984两年对以上问题进行了初步的研究,结果如下: 一、试验方法及结果分析 (一) 侵染过程试验。将配成的砂质偏微碱性土壤(PH7.5～8.0)进行高压灭菌,分100份等量分别装入100个直径12厘米、高10厘米的瓦钵内,每钵点种大豆感病品种——阜阳244种子2粒。选50钵同时接孢囊于5厘米深处。每钵接种的,是内含活卵的新鲜胞囊10个。另50钵不接种的做对照。本试验两年均于6月8月播种。待
Heterodera glycines ichinohe is one of the major diseases that damage soybean. Soybean Cyst nematode disease, dysplasia, severe pruning dead, resulting in large-scale production. There are few studies on the infection process, pathogenicity and physiological pathology of the nematode in China. The author conducted a preliminary study on the above problems in 1983 and 1984, and the results are as follows: I. Test methods and results analysis (1) Infection process test. The prepared sandy, slightly alkaline soil (PH7.5 ~ 8.0) autoclaved, divided into 100 equal parts are loaded into 100 diameter 12 cm, 10 cm high bowl, each point of soybean seedlings Susceptible varieties - Fuyang 244 seeds 2. Selected 50 bowls simultaneously sporangia at 5 cm depth. Each pot is inoculated with 10 live cysts containing live eggs. Another 50 bowls do not vaccinate as a control. The test two years were sowed in June August. Wait