您好，欢迎访问新疆农业科学院 机构知识库！
新疆农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effect of tree form on wheat yield via changing microenvironment in almond-wheat intercropping

文献类型： 外文期刊

作者： Zhang, Wen 1 ; Xie, Hui 2 ; Han, Shou-An 2 ; Wang, Min 2 ; Pan, Ming-Qi 2 ; Qiao, Xu 3 ; Li, Long 1 ;

作者机构： 1.Shihezi Univ, Coll Agr, Shihezi 832003, Xinjiang, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Hort Crops, Urumqi 830091, Xinjiang, Peoples R China

3.Chinese Acad Med Sci, Peking Union Med Coll, Inst Med Plant Dev, Beijing 100193, Peoples R China

4.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China

关键词： Agroforestry management; Tree form; Triticum aestivum L; Microenvironment; Light; Yield

期刊名称：AGROFORESTRY SYSTEMS （ 影响因子：2.419； 五年影响因子：2.672 ）

ISSN： 0167-4366

年卷期： 2022 年 96 卷 2 期

页码：

收录情况： SCI

摘要： Agroforestry systems are widely used all over the world, especially in southern Xinjiang, China, because of their multiple ecosystem functioning and services. However, the effects of tree canopy structure on the microenvironment and associated crop yield remain unclear. We set up a field experiment with four tree forms of almonds (Amygdalus communis L.), delayed open-central shape (DC), semicircle small-canopy shape (SC), open-center shape (OC), and high-stem shape (HS), which were intercropped with wheat (Triticum aestivum L.) separately. We measured the wheat yields and the photosynthetically active radiation (PAR), temperature, humidity, and red/far-red light ratio at various intercropped positions (1 m, 2 m, and 3 m apart from tree line). The results showed that wheat yield and yield components were affected jointly by the tree forms and the intercropping position. Compared with monoculture wheat, the yields of intercropped wheat with DC, SC, OC, and HS were decreased by 63.7%, 18.2%, 35.4%, and 33.0%, respectively. Tree form is largely influential to PAR, red light/far-red light, temperature, and humidity in the intercropped areas. The PAR in the intercropped wheat area was SC > HS/OC > DC, and PAR was increased with the distance from the tree line. PAR correlated significantly with R/FR, mean daily temperature, and relative humidity. PAR measured for wheat at various growth and development stages had significant positive correlations with thousand kernel weight, number of spikes, kernel number per spike, and grain yield. The structural equation model revealed that the yields of wheat were affected primarily by the PAR at the flowering and filling stages, with a contribution of up to 68%. Choosing a proper tree form (i.e., SC) and pruning to increase the trunk height or to remove the center pole is important to increase the quantity of light penetration and thereby increase the potential of wheat grain yields.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：新疆农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台