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针对棉花留叶枝如何建立高产高效群体进行了试验研究,选择具有代表性的两个品种,一个是植株较小、较早熟的杂交棉徐杂2 号,另一个是植株高大、中熟的常规棉徐203,留2 个叶枝,设 5 个密度水平。试验表明两个品种都是在 1 500 株/667m 2 的密度水平下,产量最高,皮棉单产均超过 100kg,单株结铃数和叶枝成铃数也都居首位,产量结果经方差分析差异显著。
In order to establish a high-yield and high-efficiency population for leaf retention of cotton, two representative cultivars were selected, one is the hybrid cotton Xuza No.2 which has the smaller plant and the earlier maturity, and the other is the conventional cotton Xu 203, leaving 2 leaf branches, set 5 density levels. The results showed that both cultivars had the highest yield at the density of 1 500 / 667m 2 and the lint yield exceeded 100kg. The number of bolls per plant and the number of bolls per plant were also the highest. The yield differences were analyzed by analysis of variance Significant.