中国农业气象

• 论文 •    

拉萨地区油菜白锈病发生发展的农业气象条件分析

杜军,向毓意   

  1. 西藏自治区气象台!拉萨850000,西藏自治区气候中心
  • 出版日期:1999-08-10 发布日期:1999-08-10

Analysis on the Agricultural Climatic Conditions for the Occurrence and Development of Rape White Rust in Lhasa

Du JunXiang Yuyi(Tibet Meteorological Station, Lhasa 850000)(Tibet Climatic Center)   

  • Online:1999-08-10 Published:1999-08-10

摘要: 对拉萨1988~1990 年油菜白锈病和同期的气象要素进行了相关分析。6~7 月平均气温高,夜间温度大,日较差小,阴雨寡照和空气湿度大,有利于白锈病的发生发展;提高地表温度,可减轻白锈病的发生发展。

关键词: 油菜, 白锈病, 气象因子, 拉萨地区

Abstract: The correlation between rape white rust and meteorological factors in Lhasa from 1988 to 1990 were analyzed. The main results are as follows:The conditions favorable to the occurrence and development of rape white rust are higher mean temperature higher night mean temperature, less diurnal range of temperature, more rainy days and less radiation, higher relative humidity. Raise the ground temeprature can reduce the occurrence and development of rape white rust.

Key words: Rape, Rape, White rust, Meteorological factors, Lhasated morulae and blastocysts were collected and bisected microsurgically by using special knife, obtained half embryos were cultured and observed. Results Take rate of bisection for morurae is 91