不同熟性棉花品种在冀中棉区的适应性分析

Adaptability of Different Maturity Cotton Varieties in Central Hebei Province

采用裂区设计,调查了冀中棉区棉花的生育期、"三桃"比例、霜前花率和霜前皮棉产量,分析了棉花早熟品种中50、中早熟品种33B和中熟品种冀棉298在冀中棉区的适应性。结果表明:在冀中棉区不适宜种植早熟品种,中熟品种的适应性好于中早熟品种。冀中棉区适宜种植中熟品种。

The growth period,ratio of pre-hot summer boll,hot summer boll and autumn boll,rate of blossom before frost,and pre-frost lint cotton yield were investigated by the split plot design in central Hebei Province.The adaptability of early maturing variety Zhong 50,mid-early-maturing variety 33B and middle maturing variety Jimian 298 was analyzed.The results showed that the early maturing variety was not suitable,the adaptability of middle maturing variety was better than that of mid-early-maturing one,and the middle maturing variety was suitable for planting in central Hebei Province.