早熟棉品系在北疆和晋南的适应性分析
Adaptability Analysis of Early Maturing Cotton Lines Planted in Northern Xinjiang and Southern Shanxi
通过对13个品系在北疆和晋南两生态区设置2 a的鉴定试验,旨在了解早熟棉品系在北疆和晋南2种生态条件下的生长发育特性,为两地棉花品种引种试验提供参考。结果表明,13个早熟棉品系在北疆的生育期为118~128 d,在晋南的生育期为109.5~135.0 d。各品系在北疆植株较矮,果枝数平均为9.1个;在晋南表现为高大松散、晚熟,果枝数平均为13.1个;单株结铃数在晋南也比在北疆多。早熟棉品系的单铃质量和衣分在两地差异不大;产量水平在北疆高,皮棉产量为1 290.0~2 572.5 kg/hm2,在晋南皮棉产量为354~1 005 kg/hm2。各品系的纤维长度、整齐度、比强度在两地基本相当,马克隆值在北疆表现较好,为3.55~4.65,在A级范围;而在晋南为3.96~5.69,在B2级范围。各品系在北疆和晋南的适应性不同,但晋早1、晋早2、晋早8、晋早4和晋早11等5个品系在两地的适应性分析排名均排在前列,说明这5个早熟棉品系在北疆和晋南均可种植。
In order to clarify the growth and development characteristics of early maturing cotton lines in two different ecological conditions of northern Xinjiang and southern Shanxi, in this study, identification tests of 13 early maturing cotton lines were set up in the two ecological regions for two years, providing reference for cotton variety introduction test in the two places. The results showed that the growth period of 13 early maturing cotton lines was 118-128 days in northern Xinjiang and 109.5-135 days in southern Shanxi. In northern Xinjiang, the plants of each line were shorter and the average number of fruit branches was 9.1. In the south of Shanxi, it was tall and loose, late maturing, and the average number of fruit branches was 13.1. The number of bolls per plant in southern Shanxi was also more than that in northern Xinjiang. The boll weight and lint percentage of early maturing cotton lines had little difference between the two places, the yield was high in northern Xinjiang with lint yield of 1290 to 2 572.5 kg/ha, and it was 354 to 1 005 kg/ha in southern Shanxi. The fiber length, uniformity, and specific strength of all lines were basically the same in the two places. The micronaire value was better in northern Xinjiang, ranging from 3.55 to 4.65, in the range of A level, while in southern Shanxi, it was 3.96 to 5.69, in the B2 range. The adaptability of the early maturing cotton lines in northern Xinjiang and southern Shanxi was different, but the adaptability analysis ranking of five varieties including Jinzao 1, Jinzao 2, Jinzao 8, Jinzao 4, and Jinzao 11 were at the top in the two places, indicating that these five early maturing cotton lines could be planted in both of northern Xinjiang and southern Shanxi.
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