不同营养液对水培桉树采穗条生长发育的影响  

Effects of Solutions of Different Formula on Growth of Eucalyptus Hydroponics Hedges

作　　者：谢耀坚[1] 陈帅飞[2] 谭晓风[1] 

机构地区：[1]中南林业科技大学经济林育种与栽培国家林业局重点实验室,长沙410004 [2]国家林业局桉树研究开发中心,湛江524022

出　　处：《林业科学》2007年第12期144-148,共5页Scientia Silvae Sinicae

基　　金：国家林业局"948"项目(2004-4-08)"现代化基地育苗综合调控技术引进";"十一五"国家科技支撑课题(2006BAD24B0201)"桉树和相思速生丰产林培育关键技术研究与示范"的部分内容

摘　　要：10 solutions of different concentration of N,P,K,Ca,Mg,S were used to culture the hedges in the experiment while the traditional hedges growing on soil is used as control. 8 indexes including cutting length, number of cutting burl, diameter of cutting, fresh mass of cutting, dry mass of cutting, index of fresh hydrophytic root, lignification degree of cutting, survival rate of cuttings have been measured and analyzed. The difference between solution hedges and soil hedges is significant. The content of nutrition irons effects cuttings quality and rooting percentages directly. The lignification degree is negatively correlated with diameter of cutting, cutting length, number of cutting burl, fresh mass and dry mass, while the survival rate of cuttings is positively correlated to lignification degree and index of fresh hydropuytic root. Among all solutions No.5, No.6, No.8 have good affection for hedges culture, their cuttings are usually have suitable diameter and length, and high rooting percentages. No.6 is the best solution.10 solutions of different concentration of N, P, K, Ca, Mg, S were used to culture the hedges in the experiment while the traditional hedges growing on soil is used as control. 8 indexes including cutting length, number of cutting burl, diameter of cutting, fresh mass of cutting, dry mass of cutting, index of fresh hydrophytic root, lignification degree of cutting, survival rate of cuttings have been measured and analyzed. The difference between solution hedges and soil hedges is signifcant. The content of nutrition irons effects cuttings quality and rooting percentages directly. The lignification degree is negatively correlated with diameter of cutting, cutting length, number of cutting burl, fresh mass and dry mass, while the survival rate of cuttings is positively correlated to lignification degree and index of fresh hydropuytic root. Among all solutions No.5, No.6, No. 8 have good affection for hedges culture, their cuttings are usually have suitable diameter and length, and high rooting percentages. No. 6 is the best solution.

关 键 词：营养液 桉树 水培 采穗条 

分 类 号：S762[农业科学—森林保护学]