Effect of Cutting on Reproductive Growth Stage,the Seed Yield and Seed Quality of Alfalfa(Medicago Sativa L.)

doi:10.11733/j.issn.1007-0435.2005.04.003

›› 2005, Vol. 13 ›› Issue (4): 274-277.DOI: 10.11733/j.issn.1007-0435.2005.04.003

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Effect of Cutting on Reproductive Growth Stage,the Seed Yield and Seed Quality of Alfalfa(Medicago Sativa L.)

WANG Xian-guo¹, HAN Jian-guo¹, LIU Fu-yuan², ZHONG Yong²

1. Institute of Grassland Science, China Agricultural University, Beijing, 100094, China;
2. Chengdu Daye International Investment Co.Ltd., Chengdu, Sichuan Province, 610016, China

Received:2004-12-01 Revised:2005-03-10 Online:2005-11-15 Published:2005-11-15

刈割对紫花苜蓿生殖生育期的调控及对种子产量和质量性状的影响

王显国¹, 韩建国¹, 刘富渊², 仲勇²

1. 中国农业大学草地研究所, 北京, 100094;
2. 成都大业国际投资股份有限公司, 成都, 610016

通讯作者: 韩建国
作者简介:王显国(1974- ),男,内蒙古人,在读博士研究生
基金资助:
国家科技攻关课题(2002BA518A0303);农业部“948”重大项目(202099);中国农业大学草地研究所与成都大业国际投资股份有限公司合作项目“紫花苜蓿种子生产技术研究”

Abstract

Abstract: The effects of cutting on seed yields,seed yield components,and seed quality of alfalfa were studied in the experiment plots in Jiuquan,Gansu Province.The results show that the highest seed yield(1040.5 kg/hm²)was obtained in the uncut plots(CK),while the seed yield after the cutting on May the 24th,during the bud stage,dropped significantly to 845.3 kg/hm².Delaying of the cutting time increased the rate of pods/raceme and of seeds/pod remarkably,but decreased the rate of florets/inflorescence and the thousand-seed weight(TSW).Cutting treatments influenced the seed quality significantly.Normal seedling percentage and hard seed percentage was reduced notably by cutting.

Key words: Cutting, Alfalfa(Medicago sativa L), Seed yield, Yield components, Seed quality

摘要： 在甘肃酒泉地区研究刈割对紫花苜蓿种子产量和质量性状的影响,实验结果表明:未刈割处理的种子产量最高,为1040.5kg/hm²,孕蕾期刈割的种子产量最低,为854.3kg/hm²;随着刈割时间的推迟,荚果/结荚花序、种子数/荚果显著增加,而千粒重却明显降低;刈割显著降低了萌发种子的正常种苗数量,硬实率增加,但对正常种苗与硬实种子数之和却没有显著的影响。

关键词: 刈割, 紫花苜蓿, 种子产量, 产量构成因素, 种子质量

CLC Number:

S812
S332

WANG Xian-guo, HAN Jian-guo, LIU Fu-yuan, ZHONG Yong. Effect of Cutting on Reproductive Growth Stage,the Seed Yield and Seed Quality of Alfalfa(Medicago Sativa L.)[J]. , 2005, 13(4): 274-277.

王显国, 韩建国, 刘富渊, 仲勇. 刈割对紫花苜蓿生殖生育期的调控及对种子产量和质量性状的影响[J]. , 2005, 13(4): 274-277.

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Effect of Cutting on Reproductive Growth Stage,the Seed Yield and Seed Quality of Alfalfa(Medicago Sativa L.)

刈割对紫花苜蓿生殖生育期的调控及对种子产量和质量性状的影响

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