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低酚棉是棉纤维、棉籽蛋白等多种用途的新型棉花品种。1959年美国首先育成了世界上第一个低酚棉新品种“23B”,引起了世界各国的普遍关注,相继开展了低酚棉研究利用工作。河南省农科院经济作物研究所依据这一新动态,在全国率先开展了低酚棉育种工作。1975年以美国兰布莱特GL—5作为低酚棉的种质资源,与国内多个优良品种(系)复式杂交,经严格的后代选择,于1987年成功地选育了优良低酚棉新品种豫无302,经河南省农作物品种审定委员会审定命名为豫棉二号。该品种具有丰产优质、抗逆性强、用途广、综合效益高等特点,开创了我省综合利用棉副产品的新途径。一、丰产优质豫棉二号皮棉产量与当前推广的优良普通棉花品种(高棉酚含量)相当或稍高,平均每亩霜前籽棉179.5公斤,霜前皮棉为71.1公斤,最高亩产皮棉可达
Low-phenol cotton is a new type of cotton variety for cotton fiber and cottonseed protein. In 1959, the United States first bred “23B”, a new low-cotton variety in the world, arousing the widespread concern of all countries in the world and successively carried out research and utilization of low phenol cotton. Based on this new trend, the Institute of Economic Crops of Henan Academy of Agricultural Sciences took the lead in carrying out the breeding of low phenol cotton in the whole country. In 1975, the United States Lambbreite GL-5 as a low-phenol cotton germplasm resources, and a number of domestic varieties (lines) double cross, by the strict selection of offspring, in 1987 successfully bred fine new low-cotton Variety Yu-302, approved by the Henan Province Crop Variety Approval Committee named Yumian II. The varieties with high yield and high quality, strong resistance, wide use, high overall efficiency, and create a comprehensive utilization of cotton by-products in our province a new way. First, high-yielding high-quality Henan cotton lint yield and the current promotion of the ordinary varieties of ordinary cotton (gossypol content) quite or slightly higher, with an average of 179.5 kg per acre before the seed cotton, frost before the lint 71.1 kg, the highest per mu lint cotton Up to