插植密度对野香优9号蘖穗特性及产量的影响研究

Study of the planting density's impact on the tillering and ear characteristics of Yexiangyou No.9

为探索野香优9号在当地生产条件下最佳插植密度,建立合理的群体结构,充分发挥该组合的增产潜力,进行野香优9号插植密度的田间试验。试验结果表明:插植15-27万蔸/hm2时,随着插植密度的增加,产量随之增加;当插植超过27万蔸/hm2时,产量反而下降;以插植27万蔸/hm2的产量最高,插植30万蔸/hm2的产量次之,比其他处理增产效果显著。

In order to explore the best planting density of Yexiangyou No.9 under the local conditions, es- tablish rational plant structure and develop its yield-increase potential, an field experiment was conducted. The results show that when the planting density is from 150,000 to 270,000 clumps/ha., the yield is increasing while the planting density increasing; when the planting density is over 270,000 clump/ha., yield will be decreasing; among which, it has highest yield with 270,000 clump, secondly yield with 300,000 clump/ha., the yield-increase effect is obvious than other treatments.