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种植抗病品种是防治棉花枯黄萎病最经济、最有效的一种方法。近年来,随着新选育品种的产量提高和品质改善,种植面积急剧增加。1983年达到68万多亩,是1980年9万亩的7.5倍,是1977年5000亩的136倍。种植的品种也很多,如陕401、豫86—1、李台8号、陕1155、陕5245、运城255、植保178、晋棉7号、晋棉8号、冀合321等20多个品种。这些品种中哪个综合性状较好呢?我省和全国黄河流域区域试验结果证明,当前以晋棉7号较为理想。第一、产量高。在1980到1982年我省中早熟棉区抗病品种区试中,三年平均亩产皮棉146.9斤,比对照陕
Planting disease-resistant varieties is the most economical and effective way to prevent and treat cotton wilt. In recent years, acreage has risen sharply with the increase of yield and quality of newly-bred varieties. In 1983 it reached 680,000 mu, 7.5 times more than 90,000 mu in 1980 and 136 times the figure of 5,000 mu in 1977. Many cultivars are also grown, such as more than 20 varieties such as Shaanxi 401, Henan 86-1, LiTai 8, Shaanxi 1155, Shaanxi 5245, Yuncheng 255, plant protection 178, Jinmian 7, Jinmian 8 and Jihe 321 . Which of these varieties better overall performance? Province and the Yellow River Basin in China regional test results show that the current Jin Mian 7 is more ideal. First, high output. In 1980 to 1982 in our province precocious cotton area disease-resistant variety of regional trials, the average yield per mu three years 146.9 kg, compared with the control of Shaanxi