培育在较短时间内能得到令人满意的棉花产量的类型,已经成为当今世界上许多产棉国家的主要兴趣。为了迟种以避开苗期病害,早熟以减少霜害带来的损失,为了降低防虫消耗,在过去几年中,已经培育出几个结铃快或成熟早的基因型,它们与冬季谷类作物实行两熟栽培,充分利用了土地。棉麦两熟栽培在亚拉巴马州已有多年的历史,在佐治亚州南部,近几年也在进行。Fulford报道,在佐治亚州南部,两熟制棉 Fostering the types of cotton that produce satisfactory yields in a relatively short period of time has become a major interest in many cotton producing countries in the world today. In order to delay late stage to avoid seedling diseases, premature to reduce frost damage, in order to reduce pest control consumption, in the past few years, several fast-growing or mature early genotypes have been developed which are compatible with winter cereals Practice two ripe cultivation, make full use of the land. Two-crop cotton and cotton cultivation in Alabama has many years of history, in southern Georgia, also in recent years. Fulford reported that in southern Georgia, two-crop cotton