| 春施多效唑对高羊茅生长及种子生产的影响 |
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| 引用本文： | 丁成龙,沈益新,顾洪如. 春施多效唑对高羊茅生长及种子生产的影响[J]. 草业学报, 2002, 11(4): 88-93 |
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| 作者姓名： | 丁成龙 沈益新 顾洪如 |
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| 作者单位： | 南京农业大学动科院,南京,210095;江苏省农业科学院畜牧所,南京,210014;南京农业大学动科院,南京,210095;江苏省农业科学院畜牧所,南京,210014 |
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| 基金项目： | 高等学校骨干教师资助计划 (E2 0 0 0 1 1 )资助。 |
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| 摘 要： | 早春250,500,750,1000mg/L,100mL/m^2多效唑处理对高羊茅生长及种子生产的研究结果表明,处理延长全生育期8－10d,显著降低植株高度,提高单株茎蘖数和单株成穗数,有效地防止植株倒伏,500mg/L(0.5kg/hm^2)以下处理显著提高种子产量,种子产量的提高主要归因于单株成穗数的显著提高,高浓度处理对种子生产不利,多效唑处理对种子千粒重影响较小。
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| 关 键 词： | 高羊茅 多效唑 生长 种子生产 |
| 文章编号： | 1004-5759(2002)04-0088-06 |
| 修稿时间： | 2002-01-22 |
Effect of spring-applied paclobutrazol on growth and seed production of Festuca arundinacea |
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| DING Cheng-long ,,SHEN Yi-xin,GU Hong-ru. Effect of spring-applied paclobutrazol on growth and seed production of Festuca arundinacea[J]. Acta Prataculturae Sinica, 2002, 11(4): 88-93 |
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| Authors: | DING Cheng-long SHEN Yi-xin GU Hong-ru |
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| Affiliation: | DING Cheng-long 1,2,SHEN Yi-xin1,GU Hong-ru2 |
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| Abstract: | A field experiment of spring-applied paclobutrazol to tall fescue (Festuca arundinacea Schreb. cv. Fawn and Pixie) at rate of 0.25, 0.50, 0.75 or 1.00 kg/hm2 was conducted. The results indicated that the seed mature time was delayed for 8 to 10 days and plant height was decreased significantly by the treatment. Application rate of paclobutrazol (less than 0.5 kg/hm2) increased seed yield significantly. The increase in seed yield was related with increasing production of fertile tillers. Among the seed yield components, ears per area and seed number per ear played the major role in contributing to the seed yield. High rate treatment such as 1.0 kg/hm2 showed the negative effects on seed production. The seed weight was little affected by palclobutrazol application. |
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| Keywords: | growth paclobutrazol tall fescue seed production |
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