3种熟性棉花品种在江西棉区的生态适应性研究

Study on the Bell Distribution of Different Maturity Cotton Varieties in Jiangxi Cotton Area

以2014年引进黄河流域棉区的3种熟性的3个常规棉品种为研究对象,分析其生育期,成铃分布及产量性状,以探讨外源不同熟性棉花品种在江西棉区的适应情况。结果表明:早熟品种生育期延长,"三桃"比例失调,产量最低;中熟品种生育期缩短,霜前花率偏高,不利高产潜力的发挥,这2种熟性品种均不适宜在该区种植。中早熟品种冀228的生育期较稳定,中下部及内围成铃率相对较高,籽棉产量最高,在当前栽培条件下,较适宜在江西棉熟性区种植。

The paper took 3 conventional cotton varieties from the Yellow River cotton area which were 3 kinds of maturity as research object in 2014, analyzed the growth period ,bell distribution and yield traits, in order to investigate the adaptation of different maturity of cotton varieties planted in Jiangxi cotton region. The results showed that the growth period of early maturing variety was longer,the proportion of ＂three bell＂ was imbalance, and yield was the lowest, for middle maturing varieties, before frost flower rate was higher, and was not conducive to the high yield potential, so the two varieties were not suitable for planting in the area.Mid-early maturing variety Ji228 had stable growth period ,had the high relative boll rate in the middle lower part and inner circle ,and the highest seed cotton yield. So ,under the current cultivation conditions ,mid-early maturing varieties were more suitable for Jiangxi cotton region.