不同熟性棉花品种在冀东棉区的适应性分析

Adaptability of Different Maturity Cotton Varieties in Eastern Hebei Province

采用裂区设计,调查了冀东棉区棉花的生育期、"三桃"比例、霜前花率以及霜前皮棉产量,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在冀东棉区的适应性。结果表明:在冀东棉区不适宜种植中早熟品种和中熟品种,只能种植早熟品种。

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 eastern 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 mid-early-maturing variety and middle maturing variety were not suitable,and only the early maturing variety could be planted in eastern Hebei.