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通过观察无芒雀麦在大连市普兰店地区的生长和生殖特性发现 1999年该地的气候条件适宜无芒雀麦的生殖发育和种子生产 ,但在种子成熟期的高温干旱导致种子成熟速度加快和种子重量降低。同时 ,还研究了氮肥和植物生长调节剂对无芒雀麦种子产量的影响。施氮量为180kg/hm2 时 ,无芒雀麦的种子产量最高 ,可达 184 4kg/hm2 ,但和施氮量为 150kg/hm2 、12 0kg/hm2和 90kg/hm2 处理间的差异不显著。在无芒雀麦的抽穗初期喷施调嘧啶和多效唑对无芒雀麦种子的各产量构成要素、种子产量和植株高度都没有明显的影响。
By observing the growth and reproductive traits of Bromus inermis in Pulandian, Dalian, it was found that the climatic conditions in 1999 were suitable for the reproductive development and seed production of Bromus inermis, but the high temperature and drought in the seed maturity led to faster seed maturation And seed weight is reduced. At the same time, the effects of nitrogenous fertilizer and plant growth regulator on the seed yield of Bromus inermis were also studied. Under the nitrogen application rate of 180kg / hm2, the seed yield of M. brussels was the highest, reaching 184 4kg / hm2. However, there was no significant difference between the two treatments at the rate of 150kg / hm2, 120kg / hm2 and 90kg / hm2. In the early stage of heading of A. brunnea, spraying of pyrimidine and paclobutrazol had no significant effect on the yield components, seed yield and plant height of A. brunnea seed.