野生木薯生物性状观察及嫁接生产技术研究  

Observation on Wild Cassava Biological Characteristics and Grafting Technology

作　　者：李军 陈显双 俞奔驰 覃剑峰 

机构地区：[1]广西亚热带作物研究所,广西南宁530001

出　　处：《安徽农业科学》2012年第9期5121-5122,5294,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(30860133);广西壮族自治区亚热带作物研究所专项资金项目(201002)

摘　　要：[目的]了解野生木薯(Manihot esculenta Crantz)生物学性状并对其嫁接生产技术进行探索。[方法]大田抽样对野生木薯进行生物性状观测;选用不同品种嫁接野生木薯接穗,测定产量、淀粉含量及淀粉产量。[结果]野生木薯的叶面积、叶厚度、株高、冠幅、茎粗分别是对照(SC205)的308%、137%、186%、177%、165%,具有较强生长势。野生木薯嫁接后不同品种的鲜薯产量比对照(SC205)增加14.9%～109.3%,与对照的差异达极显著水平;淀粉产量增加-5.0%～45.1%,但与对照差异不显著;嫁接处理后淀粉含量均出现不同程度降低;嫁接同不嫁接(同一品种)比较,鲜薯产量增加10.3%～102.2%,淀粉产量增加-9.2%～48.5%,而淀粉含量明显降低,降低率为-9.8%～26.5%。GR891、GR5为较佳嫁接组合,产量、淀粉产量、淀粉含量均高于对照。[结论]用野生木薯接穗嫁接栽培种木薯,增产效果明显,具有较大推广价值。[ Objective ] The aim was to study biological characteristics of wild cassava and explore grafting technology. [ Method] Field sampiing was carried out for observation ; different varieties were selected for grafting, the yield, starch content and yield were determined. [ Resuit] The leaf area, leaf thickness, plant height, crown diameter, stem diameter of wild cassava were 308%, 137%, 186%, 177%, 165% higher than CK （SC205）, which has a stronger growth potential. After grafting, the fresh cassava yield of different varieties were increased 14.9% - 109.3% than CK, the difference was up to extremely significant level. The starch yield increased -5.0% -45.1%, the difference was not significant. Grafting or not （the same varietis）, the fresh cassava yield increased 10.3% -102.2%, starch yield increased -9.2% -48.5%, while stach content obviously decrease, the decrease rate was -9.8% -26.5%. GRg91 and GR5 are optimal grafting combina- tion, yield, starch yield, starch content all were higher than CK. [ Conclusion ] By grafting on wild cassava, the cassava yield increasing obviously, which has great promotion value.

关 键 词：野生木薯 嫁接 生物性状 

分 类 号：S533[农业科学—作物学]