应用数理统计方法对鄂棉 2 2产量构成因素及其丰产、稳产性进行分析 ,结果表明 :鄂棉 2 2丰产、稳产性好 ,适应性强 ,产量构成因素中以单株铃数与产量关系最密切 ,对产量的作用最大 ,其次是铃重 ,再次是密度 ,衣分对产量的作用最小。其高产途径和主攻目标是 :合理密植 ,攻株铃数 ,争铃重 ,稳定衣分 The results showed that the yield of E’mian 22 was high, yield stability was good, adaptability was strong, and the relationship between yield and boll number per plant in yield components Most closely, the greatest impact on the yield, followed by boll weight, density again, the role of the minimum yield on the yield. Its high-yielding ways and the main target are: reasonable close planting, the number of attack bolls, Chong Ling heavy, stable clothing points