论文部分内容阅读
黄河流域棉区棉铃虫连年大发生,已对该区及全国棉花生产形成巨大威胁。如何经济有效地控制棉铃虫危害,已是棉花生产急待解决的最关键问题。黄河流域棉区及其它产棉区已开展了转基因抗虫棉研究,并取得一定进展。我省引种中国棉花研究所的抗虫棉品系(93R—1、—2、—3、—4、—5、—6等)已有一定种植面积。但这些品系存在一
The occurrence of cotton bollworm in the cotton area of the Yellow River Basin in successive years has posed a tremendous threat to cotton production in the area and the whole country. How to control the harm of cotton bollworm economically and effectively is the most critical issue to be urgently solved in cotton production. Cotton fields in the Yellow River Basin and other cotton producing areas have carried out transgenic insect-resistant cotton and made some progress. Insect-resistant cotton varieties (93R-1, -2, -3, -4, -5, -6, etc.) introduced to China Cotton Research Institute in our province have been planted with a certain area. But these strains exist one