【作者】 简桂良； 齐放军； 张文蔚；

【Author】 JIAN Gui-liang,QI Fang-jun,ZHANG Wen-wei (Institute of Plant Protection,CAAS,The State Key Laboratory for Biology of Plant Diseases and Pests,Beijing100193,China)

【机构】 中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室；

【摘要】 近年来,一种非侵染性棉花病害——早衰,常年、大规模、普遍发生,已成为制约我国棉花生产的突出问题,一般年份经济损失可达92.5亿～130亿元,而在早衰重度发生的年份,可能突破200亿元,损失巨大。原因主要有:品种的遗传特性,病虫危害,营养失衡,气候和水分,载铃过早库源比例失调等几方面。预计在未来数年内仍将是我国棉花高产稳产重要限制因子之一。并提出了棉花早衰治理策略。更多还原

【Abstract】 In recent years,one kind of non-infectivity cotton plant disease-premature senescence,occurred year to year,large-scale and universally,has become the prominent question that restricts our country cotton production,the general yearly economic loss may amount to 9.25～13.0billion Yuan,possibly up to 20.0billion Yuan.The main reason are:The variety heredity characteristic,the disease and insect harm,the nutrition unbalance,the climate and the moisture content,carrying the boll early leading to storehouse and source imbalance,and so on.Estimated the premature senescence still will be one of important limit factors in our country cotton high and stable production. And proposed the government strategy to cotton premature senescence.更多还原