摘要
通过近年来小麦白粉病发生情况的研究与分析，本文初步阐明了当地小麦白粉病的流行规律，确定了病害流行的预测因子，提出了病害的综合分析预测方法，并建立了病害发生程度预测式：Ｙ＝８．２５２９１８＋０．６２６００５Ｘ１－０．４１１７６５Ｘ２＋０．０１１００４３Ｘ３＋０．００６２６６７Ｘ４，Ｆ＝４９．０９９６，Ｓｙ／ｘ＝０．２７２５７４，历史符合率１００％。经１９９４～１９９５年预测检验。
On the basis of epidemic conidition of Wheat Powdery mildew ( Erysiphe graminis Dc. f. sp. tritici E Marshal) researched and analysed in the recent years, The rules of disease epidemics and the major influence fators and the forecasting element were illuztrated and determined in this paper. The methods for mid-term prediction and the forecasting index were also determined. Formula for epidemic degree forecast:Y=8.252918+0.626005X 1-0.411765X 2+0.0110043X 3+0.0062667X 4, be tallyed with the realities is 100%. The prediction results got in 1994-1995 were proved to be well coincided with practice.
出处
《辽宁农业科学》
北大核心
1996年第4期7-9,共3页
Liaoning Agricultural Sciences
