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新棉33~B是美国保铃抗虫棉系列中的一个高抗棉铃虫、丰产性好的棉花品种。1995年引入河北,1997年初由河北省农作物品种审定委员会审定通过。同年12月由农业部生物基因工程安全委员会按照《生物基因安全管理实施办法》进行审查,同意在河北省内进行商业化生产。1998年全省推广新棉33~B8万hm~2,占全省棉花面积的23.2％,平均667m~2产皮棉70多kg,并涌现出了一大批100kg以上的高产典型。由于新棉33~B具有抗虫、丰产、降耗、安全和调控棉田生态环境的综合效
New cotton 33 ~ B is a high cotton bollworm resistance cotton bollworm series in the United States, high yield and good cotton varieties. Hebei Province was introduced in 1995, and was approved by Hebei Province Crop Variety Approval Committee in early 1997. In December the same year by the Ministry of Agriculture Biological Gene Engineering Safety Committee in accordance with the “Biological Gene Safety Management Implementation Measures” review, agreed to commercial production in Hebei Province. In 1998, the province promoted 33 to 80,000 hm 2 of new cotton, accounting for 23.2% of the cotton area in the province, with an average of 667m ~ 2 and over 70 kg of lint, and a large number of high-yielding models of more than 100kg emerged. As the new cotton 33 ~ B with insect-resistant, high yield, reduce consumption, safety and control of cotton ecological environment comprehensive effect