种间嫁接对连作障碍土壤上咖啡生长及养分吸收特性的影响  

Influences of Interspecific Grafting on Growth and Nutrient Absorption Characteristics of Coffee in Continuous Planting Obstacle Soil

作　　者：孙燕[1] 董云萍[1] 龙宇宙[1] 林兴军[1] 谭军 闫林[1] 黄丽芳[1] 王晓阳[1] SUN Yan;DONG Yunping;LONG Yuzhou;LIN Xingjun;TAN Jun;YAN Lin;HUANG Lifang;WANG Xiaoyang(Spice and Beverage Research Institute,CATAS/ Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops,Ministry of Agriculture and Rural Affairs/Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulation for Tropical Spice and Beverage Crops,Wanning,Hainan 571533)

机构地区：[1]中国热带农业科学院香料饮料研究所/农业农村部香辛饮料作物遗传资源利用重点实验室/海南省热带香辛饮料作物遗传改良与品质调控重点实验室

出　　处：《热带农业科学》2019年第8期5-10,共6页Chinese Journal of Tropical Agriculture

基　　金：中国热带农业科学院基本科研业务费专项(No.1630142019014)

摘　　要：以大粒种咖啡(C.liberica)1号为砧木,中粒种咖啡(C.canephora Pierreex Froehner)热研1号为接穗,研究种间嫁接对连作障碍土壤上咖啡生长及养分吸收特性的影响。结果表明:种间嫁接咖啡苗较自根嫁接苗N、P、Ca和Mg吸收量分别增加67.29%、128.21%、101.64%和58.33%,株高、茎粗、地上部和根部干物质量分别增加35.07%、40.44%、38.79%和86.25%。由此可见,种间嫁接改善了连作障碍土壤上咖啡养分吸收特性,增强了植株长势。The continuous planting obstacle was considered to be the primary problem in inhibiting coffee growth. Previous studies had shown that interspecific grafting could effectively relieve the continuous planting obstacle of coffee growth. C. liberica No.1 and C. canephora Reyan No.1 were used as rootstock and scions, respectively to analyze the influences of interspecific grafting on growth and nutrient uptake of grafted coffee trees grown in a continuous planting obstacle soil. The results showed that the contents of N, P, Ca and Mg in the graftings of Reyan No.1 were increased by 67.29%, 128.21%, 101.64% and 58.33%, respectively as compared with those of self-rooted seedlings. Meanwhile, the plant height, stem diameter, dry weight of shoot and root were also increased by 35.07%, 40.44%, 38.79% and 86.25%, respectively, as compared with those of the self-rooted seedlings. The graftings of Reyan No. 1 had higher nutrient absorption capacity and hence higher vigor.

关 键 词：咖啡 种间嫁接 连作障碍 生长 养分吸收 

分 类 号：S571.2[农业科学—作物学]