您好，欢迎访问贵州省农业科学院 机构知识库！
贵州省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Responses of photosynthetic characteristics and dry matter formation in waxy sorghum to row ratio configurations in waxy sorghum-soybean intercropping systems

文献类型： 外文期刊

作者： Wang, Can 1 ; Zhou, Lingbo 1 ; Zhang, Guobing 1 ; Gao, Jie 1 ; Peng, Fangli 1 ; Zhang, Chunlan 1 ; Xu, Yan 1 ; Zhang, Liy 1 ;

作者机构： 1.Guizhou Acad Agr Sci, Inst Upland Food Crops, Guiyang 550006, Guizhou, Peoples R China

关键词： Dry matter; Intercropping; Photosynthetic characteristics; Row ratio configurations; Waxy sorghum

期刊名称：FIELD CROPS RESEARCH （ 影响因子：4.308； 五年影响因子：4.816 ）

ISSN： 0378-4290

年卷期： 2021 年 263 卷

页码：

收录情况： SCI

摘要： In intercropping systems, microclimate environment, especially light environment induced by row ratio configurations, is crucial to crop productivity. However, little information is available on how waxy sorghum canopy light environment is affected by row ratio configurations in waxy sorghum-soybean intercropping systems. Hence, field experiments were conducted in 2019 and 2020 to study the responses of photosynthetic characteristics, dry matter formation, and yield performance of waxy sorghum to seven treatments: sole waxy sorghum (SW), sole soybean (SS), two rows of waxy sorghum alternated with one row of soybean (2W1S), two rows of waxy sorghum alternated with two rows of soybean (2W2S), three rows of waxy sorghum alternated with one row of soybean (3W1S), three rows of way sorghum alternated with two rows of soybean (3W2S), and three rows of way sorghum alternated with three rows of soybean (3W3S). The results showed that intercropping increased the photosynthetically active radiation (PAR) and leaf area index (LAI) of waxy sorghum compared to SW treatment. This increase in PAR and LAI increased the photosynthetic characteristics of waxy sorghum canopy, including chlorophyll content (SPAD value), net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), and stomatal limitation value (Ls). These changes resulted in increased dry matter accumulation, its distribution, and promoted the dry matter transportation from vegetative organs to grain in waxy sorghum. Likewise, intercropping increased the grain number per spike and 1000-grain weight of waxy sorghum, and ultimately increased the land equivalent ratio (LER). Moreover, the 2W1S treatment showed the most suitable light environments and greatest resource utilization to obtain the highest LER and economic benefits. Based on the present results, we suggested that the 2W1S should be used as optimal row ratio configuration of waxy sorghum-soybean system to attain maximum benefits.

  • 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：贵州省农业科学院

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