大豆锈菌冬孢子形成研究

• 作 者: 谈宇俊 费甫华 单志慧 周乐聪 沈明珍 李松
• 机 构: 中国农业科学院油料作物研究所!湖北武汉430062,湖北省宜昌市农业科学研究所!湖北宜昌443004,中国农业科学院油料作物研究所!湖北武汉430062,中国农业科学院油料作物研究所!湖北武汉4300
• 出 处: 中国油料作物学报
• 发表日期: 2001年01期
• 关键词: 冬孢子堆 大豆 锈菌 大豆锈病 形成条件 大豆植株 光照 体积 负相关 均温

大豆锈菌可在大豆植株上形成冬孢子和冬孢子堆 ,田间在 10～ 11月初形成 ,但数量较少。冬孢子堆的形成与大豆品种、温度、湿度、光照等有关 ,日均温 2 0℃以下 ,日最低气温 16℃以下有利于冬孢子形成。昼夜温差大 ,形成冬孢子堆数量多。感病品种比抗病品种出现冬孢子的时间早 ,数量多 ,但体积小。冬孢子堆的大小与数量成负相关 ,在 13～ 2 5℃、2 0 0lux条件下 ,冬孢子堆体积较大 ,数量较多

Soybean rust can form teliospores and teliospores on soybean plants. The field was formed in early October and early November, but the quantity was small. The formation of teliospores is related to soybean varieties, temperature, humidity, light and so on. The daily average temperature below 20 ℃ and the daily minimum temperature below 16 ℃ are favorable for the formation of teliospores. Large temperature difference between day and night, forming a large number of winter spore reactor. The susceptible cultivars appeared earlier and more in number than the resistant cultivars but smaller in size. The size and number of teliospores were negatively correlated with each other. Under the conditions of 13 ~ 25 ℃ and 200 lux, the size of teliospores was larger and larger