1) Investigation of potato yellow dwarf disease
黄矮病病害调查
2) disease investigation
病害调查
1.
Altogether 16 diseases are discovered during the course of disease investigation and the preliminary disease factor appraisal of 26 kinds of carnations in the freshly cut flowers production bases of Xinxiang.
通过对新乡地区鲜切花生产基地的2 6个香石竹品种进行了病害调查与初步病原鉴定,共发现16种病害。
5) Yellow dwarf
黄矮病
1.
Via investigation and analysis,it discussed relation between occurrence of wheat yellow dwarf and yield.
通过系统调查与分析,探索了小麦黄矮病的发生程度与产量的关系,确定了其发病程度与分级标准,研究出了小麦黄矮病的经济阈值。
2.
Yellow dwarf is an occasional disease, which prevails once in a number of years.
黄矮病是偶发性病害,多年流行一次,这一病一虫对小麦的危害是相当严重的,如不进行有效的防治,轻发生年损失率在10%左右,中度发生年份损失率在10-20%,中偏重发生年份损失率在20%以上,如遇麦蚜大发生、黄矮病大流行年份最高损失率可达60%左右。
6) BYDV
黄矮病
1.
Forecast model of BYDV in winter wheat.;
冬小麦黄矮病预测模型研究
2.
Hereditary Analyses on Characters of BYDV Resistance in Wheat;
小麦黄矮病抗性遗传研究
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