华北农学报Issue(2)：188-192,5.
断根深度对花生光合特性及干物质积累的影响
Effects of Depth of Root Cutting on the Photosynthetic Characteristics and Dry Matter Accumulation of Peanut
摘要
Abstract
In order to investigate the appropriate depth of root cutting for peanut,and provide theoretical and technical basis for peanut high-yield cultivation,the effects of depth of root cutting on the photosynthetic characteris-tics and dry matter accumulation were studied by using the box-planting methods. The results showed:Different depths of root cutting treatments all reduced leaf chlorophyll content,net photosynthetic rate,leaf area per plant, stem and leaf dry matter weight,root dry matter weight and pod dry matter weight in a short time after root cutting. Moreover,the decrease range of them showed increasing trend with the increase of root cutting depth. In afterwards, the effects of the suitable depth of root cutting on leaf chlorophyll content, net photosynthetic rate, leaf area per plant,stem and leaf dry matter weight,root dry matter weight and pod dry matter weight were higher than these of the control,and of them sometimes reached to significant or extremely significant level. However,excessive root cut-ting can cause leaf chlorophyll content,net photosynthetic rate,leaf area per plant,stem and leaf dry matter weight, root dry matter weight and pod dry matter weight lower than the control. This showed that moderate root cutting of peanut in early growing stage can regulate and control the growth of root system,in afterwards,bring with compensa-tion and super compensation effect on peanut growth and development,and excessive root cutting has no compensa-tion effects. This research suggested that moderate depth of root cutting is between 10 to 15 cm.关键词
花生/断根/深度/光合特性/干物质积累Key words
Peanut/Root cutting/Depth/Photosynthetic characteristics/Dry matter accumulation分类
农业科技引用本文复制引用
冯锴,赵长星,王月福,陈安余,王铭伦..断根深度对花生光合特性及干物质积累的影响[J].华北农学报,2014,(2):188-192,5.基金项目
国家自然科学基金项目(31271657) （31271657）
国家现代农业(花生)产业技术体系项目(Nycytx-19) （花生）
山东省(花生)现代农业产业技术体系项目 （花生）
山东省“泰山学者”建设项目 （）
山东省高校旱作节水优秀创新团队项目 （）
