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抗虫棉分为三大类:(1)外部形态抗虫棉:其中多毛的品种抗棉蚜,光叶少毛、鸡爪叶、苞叶扭曲、无蜜腺、红叶、花色深、油点多的品种抗棉铃虫,我国科研部门现选育一批具有外部形态抗虫性的常规抗虫棉品种(系)如华棉101,泗棉3号、中植372、晋棉12、中99、中23等。(2)生理生化抗虫棉;即是棉株中含有棉酚、单宁抗虫生化物质,游离氨基酸,氧化酶和叶片、铃壳等部位的油腺密度等内在生理抗虫因素。此抗虫棉
Insect-resistant cotton is divided into three categories: (1) the external shape of insect-resistant cotton: which hirsutum varieties resistant to cotton aphid, light leaves less hair, chicken claw leaves, bracts distorted, non-nectary, red leaves, More varieties of anti-bollworm, China’s scientific research departments are now breeding a group of conventional insect-resistant cotton with the external morphology varieties (lines), such as China Cotton 101, Simian 3, planting 372, Jin Mian 12, in 99 , 23 and so on. (2) Physiological and biochemical insect-resistant cotton; that is, cotton plants containing gossypol, tannin anti-insect biochemical substances, free amino acids, oxidase and leaves, bell shells and other parts of the gland density and other intrinsic physiological and insect resistance factors. This insect-resistant cotton