甘蔗及其近缘属植物钾效率差异研究  

Differences of potassium efficiency among different genotypes of sugarcane and its related genera

作　　者：李奇伟[1] 敖俊华[1] 卢颖林[1] 黄莹[1] 陈迪文[1] 周文灵[1] 黄振瑞[1] 江永[1] 

机构地区：[1]广州甘蔗糖业研究所/广东省甘蔗改良与生物炼制重点实验室,广东广州510316

出　　处：《广东农业科学》2012年第21期29-32,共4页Guangdong Agricultural Sciences

基　　金：科技部科研院所技术开发研究专项(2010EG111024);国家现代农业(甘蔗)产业技术体系专项

摘　　要：对39份甘蔗及其近缘属植物进行钾效率评价分析,旨在探讨不同基因型甘蔗种质钾效率差异,从而为筛选、培育耐低钾的甘蔗品种提供种质材料。结果表明:在低钾水平下,甘蔗及其近缘属植物地上部生物量、钾吸收效率和钾利用效率存在显著基因型差异,不同甘蔗及其近缘属属间地上部生物量、钾吸收效率和钾利用效率也存在显著属间差异。另外,通过对供试材料的钾效率评价,发现部分斑茅材料不仅具有较高的生物量,同时也具有较高的钾素利用效率,可为甘蔗钾效率的定向改良提供优良种质。In this study, a field experiment was carried out to explore the difference of potassium efficiency with 39 sugarcane and its related genera genotypes, so as to screen and provide materials for breeding low-potassium tolerant sugarcane genotypes. The results showed that there was significant difference in plant biomass, potassium uptake efficiency and potassium utilization efficiency among difference genotypes; significant difference also existed in plant biomass, potassium uptake efficiency and potassium utilization efficiency among difference genus. In addition, some materials of Erianthus arundinoceu （Retz.） Jeswiet with high biomass and high K utilization efficiency was been found in this experiment which might provide sugarcane germplasm for breeding high K efficiency sugarcane.

关 键 词：甘蔗 基因型差异 钾吸收效率 钾利用效率 

分 类 号：S566.101[农业科学—作物学]