| pp333对多年生黑麦草营养生长及结实性能的影响 |
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| 引用本文： | 兰剑,张丽霞,等.pp333对多年生黑麦草营养生长及结实性能的影响[J].四川草原,2002(4):27-30. |
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| 作者姓名： | 兰剑 张丽霞 |
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| 作者单位： | 宁夏农学院草业科学研究所，宁夏农学院草业科学研究所，宁夏农学院草业科学研究所，宁夏农学院草业科学研究所 宁夏永宁750105，宁夏永宁750105，宁夏永宁750105，宁夏永宁750105 |
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| 摘 要： | 采用单因素随机区组设计,研究了草坪型多年生黑麦草(LoliumperenneL.)在春季返青期施用多效唑(paclobuturazal,pp333)对其营养生长和结实性能的影响。结果表明,多效唑能有效地抑制多年生黑麦草的植株高度,增强抗倒伏能力,减少种子败育,提高结实率,增加有效分蘖,缩短叶片长度,改变生长格局;穗长和千粒重降低,落粒率降低10%,种子产量提高13 9%。
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| 关 键 词： | pp333 多年生黑麦草 营养生长 结实性能 |
Effect of paclobuturazal (pp333)on the nutrient growth and fecundity of perennial ryegrass |
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| Abstract: | The nutrient growth and fecundity of turf-type perennial ryegrass(Lolium perenne L.)with applying paclobuturazal (pp333) at truning-green stage in spring were studied with the single-factor random block design.It was indicated that paclobuturazal could effectively control growth of perennial ryegrass,strengthen resistance to lodging,reduce abortion,improve seed rate,increase density and shorten leaf length.Shattered seed at maturity amounted to 47.5% of overall mean yield,but 52.8% of the contrast in the experiment.Paclobuturazal can increase the seed output of perennial ryegrass with 13.9% |
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| Keywords: | Paclobuturazal Perennial ryegrass Nutrient growth Fecundity |
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