施肥及生长调节剂对高羊茅种子产量的影响  

The Effects of Fertilizer and PGRs on the Seed Yield and Yield Components of Tall Fescue

作　　者：房丽宁[1] 韩建国[1] 王培[1] 刘玉杰[1] 曲洪福 刘芳庆 

机构地区：[1]中国农业大学草地研究所,北京100094 [2]辽宁省大连市洪福集团,大连116001

出　　处：《草地学报》2000年第3期164-170,共7页Acta Agrestia Sinica

摘　　要：在辽宁省大连市普兰店地区研究氮肥、氯丁唑和调嘧啶对高羊茅种子产量及其构成要素的影响。结果表明 ,该地区的气候条件有利于高羊茅的生殖生长和种子发育。施氮后种子产量较对照明显提高 ,其中以施氮量 1 2 0 kg/hm2 (春季施氮量占总施肥量 3/4) ,种子产量最高 ,可达 2 4 73kg/hm2。在抽穗初期使用调嘧啶可显著降低种子的落粒性 ,减轻收获风险。Seed development and the responses of seed yield and yield components at different rates and data of nitrogen as well as plant growth regulator to tall fescue were studied in Pulandian city of Liaoning province.The results indicated that the climate of Puliandian was favorable for flowering and pollination for tall fescue.The optimum rate of nitrogen was 120kg/hm 2 and obtained seed yield was high as 2473kg/hm 2 when nitrogen was applied one fourth in autumn followed by a second application in spring (three fourth of the total).Plant growth regulator Paclobutrazol and Flruprimido were applied at beginning of ear emergence,though they had no significant effects on seed yield and plant height,the seed shattering of tall fescue was significantly decreased by Flruprimido.

关 键 词：高羊茅 种子生产 施肥 植物生长调节剂 品种 

分 类 号：S543.906.2[农业科学—作物学]