| 多效唑对蓝茎冰草种子产量的影响 |
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| 引用本文： | 李世忠,赵涛,柏永华,张中华. 多效唑对蓝茎冰草种子产量的影响[J]. 西北农业学报, 2008, 17(2): 313-316 |
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| 作者姓名： | 李世忠 赵涛 柏永华 张中华 |
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| 作者单位： | 宁夏农业勘查设计院,银川,750002 |
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| 基金项目： | 国家“948”重大项目专题“牧草种子生产的研究与示范”(202009) |
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| 摘 要： | 在甘肃省酒泉地区研究较高施氮水平上多效唑不同施用时期和不同施用量对蓝茎冰草种子产量及其构成要素的影响。结果表明,在三叶期喷施多效唑2.40 kg ai./hm2时实际种子产量最高,喷施时期越滞后,喷施量越少,实际种子产量就越低。多效唑的施用显著影响了植株高度、生殖枝数/m2、小花数/小穗和种子数/小穗,最终影响了蓝茎冰草的实际种子产量。
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| 关 键 词： | 蓝茎冰草 种子产量 多效唑 |
| 文章编号： | 1004-1389(2008)02-0313-04 |
| 收稿时间： | 2007-10-15 |
| 修稿时间： | 2007-10-15 |
The Effects of Paclobutrazol(PP333) on the Seed Yield for Western Wheatgrass |
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| LI Shi-zhong,ZHAO Tao,BAI Yong-hua and ZHANG Zhong-hua. The Effects of Paclobutrazol(PP333) on the Seed Yield for Western Wheatgrass[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2008, 17(2): 313-316 |
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| Authors: | LI Shi-zhong ZHAO Tao BAI Yong-hua ZHANG Zhong-hua |
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| Affiliation: | Ningxia Institute of Agricultural Survey and Design, Yinchuan 750002, China;Ningxia Institute of Agricultural Survey and Design, Yinchuan 750002, China;Ningxia Institute of Agricultural Survey and Design, Yinchuan 750002, China;Ningxia Institute of Agricultural Survey and Design, Yinchuan 750002, China |
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| Abstract: | Seed development and effect of paclobutrazol(PP333) on the seed yield and yield components of western wheatgrass(Agropyron smithii) at different date and rates were studied in Jiuquan city of Gansu province. The results indicated that the best yield happened on 2.40 kg ai./hm2 at the stages of three-leaf.Actual seed yield and seed quality decreased as spraying time got later and spraying amount decreased.There was evident effect of PP333 on plant height,fertile tillers/m2,florets/spikelet,seeds/spikelet and actual seed yield. |
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| Keywords: | Western wheatgrass Seed yield PP333 |
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