›› 2014, Vol. 22 ›› Issue (1): 139-144.DOI: 10.11733/j.issn.1007-0435.2014.01.022

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Effects of Row Spacing on Forage-type Tall Fescue Seed Yield and Yield Components

HAN Yun-hua1, WANG Xian-guo2, HU Tian-ming1, ZHU Zhen-lei3, WANG Zheng-wei1, WANG Ying4, CUI Zhi-ming5, SHI Jin-hui6   

  1. 1. College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
    2. Department of Grassland Science, China Agricultural University, Beijing 100094, China;
    3. China-Africa Agriculture Investment Co. Ltd, Zhongguancun, Beijing 100081, China;
    4. Jiuquan Agricultural Science Research Institute, Jiuquan, Gansu Province 735000, China;
    5. Bayannur Academy of Agricultural & Animal Husbandry Sciences, Bayannur, Inner Mongolia 015000, China;
    6. Jijiazhuang Middile School, Zhangjiakou, Hebei Province 075735, China
  • Received:2013-06-04 Revised:2013-07-10 Online:2014-02-15 Published:2014-01-28

行距对牧草型高羊茅种子产量和产量因子的影响

韩云华1, 王显国2, 呼天明1, 朱振磊3, 王正伟1, 王莹4, 崔志明5, 石金惠6   

  1. 1. 西北农林科技大学动物科技学院, 陕西 杨凌 712100;
    2. 中国农业大学草业科学系, 北京 100193;
    3. 北京中非农业投资公司, 北京 100085;
    4. 酒泉农业科学研究所, 甘肃 酒泉 735000;
    5. 巴彦淖尔农牧科学院, 内蒙古 巴彦淖尔 015000;
    6. 吉家庄中学, 河北 张家口 075735
  • 通讯作者: 呼天明,E-mail:hutianming@126.com
  • 作者简介:韩云华(1985-),男,河北张家口人,博士研究生,研究方向为牧草种子生产技术及高粱育种,E-mail:hanyunhua2008@163.com
  • 基金资助:
    国家牧草产业体系(CARS-35);国家科技支撑项目(2011BAD17B05);国家科技支撑子课题(2011BAD17B01-02);农业部公益性行业专项(200903060);草业科学北京市重点实验室建设项目资助

Abstract: In this study, tall fescue (Festuca arundinacea) seed yield and seed yield components were measured and analyzed under the climate of the Hexi Corridor with different row spaces from 2009-2012. Results indicated that tall fescue seed yields were influenced significantly by row spaces and years, and decreased with row space increased. Seed yields had significant difference between different years. And the highest seed yield occurred in the third year after sowing. The highest seed yields of 1225 kg·hm-2 were obtained with 30 cm row space in 2011. Seed yields were correlated closely to tillers, vegetative tillers and fertile tillers which were influenced by row space and weather condition. Spikelet/fertile tiller, floret/spikelet, seeds/spikelet ratios and thousand seed weight were influenced significantly by year, while not affected by row space.

Key words: Festuca arundinacea, Hexi Corridor, Seed yield, Row space

摘要: 试验于2009—2012年,在河西走廊地区对不同行距条件下牧草型高羊茅(Festuca arundinacea)种子产量和产量因子进行分析研究。结果表明:行距对种子产量有显著影响且随行距增大种子产量呈下降趋势,2011年30 cm行距种子产量最高,为1225 kg·hm-2。不同年限间种子产量差异显著,播种后第3年种子产量最高。行距和年限均是通过影响单位面积分蘖、单位面积营养枝数和单位面积生殖枝数,进而影响种子产量。小穗数/生殖枝、小花数/小穗、种子数/小穗和千粒重主要随年际变化,受行距影响较小。

关键词: 高羊茅, 河西走廊, 种子产量, 行距

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