中国农业大学学报2017，Vol.22Issue(7)：40-46,7.DOI:10.11841/j.issn.1007-4333.2017.07.05
甘蔗叶冠形态与抗梢腐病相关性探讨
Effects of sugarcane canopy structure on pokkah boeng disease resistance
摘要
Abstract
To explore the effects of sugarcane canopy structures on resistance to pokkah boeng disease.Field experiment was carried out using Fusarium verticillioides as virulent source.Thirteen newly introduced clones from Florida,USA and dominant cultivar ROC22 in Guangxi were taking as planting materials.Principal component analysis and correlation analysis indicated that the pokkah boeng disease resistance was significantly and positively correlated with leaf area of first-top-leaf,and positively correlated with angle index.Furthermore,the 14 tested sugarcane materials were clustered to 4 grades:High resistant varieties (clones) were CP07-2518,CP06-4647,CP06-3458 and CP06-3332;CP07-2547,CP07-1527,ROC22,CP06-3477 and CP06-2897 belonged to resistance grade;CP09-4707,CP09-4369 and CP07-1533 belonged to medium resistance (MR) grade;CP06-3051 and CP06-2422 belonged to medium susceptible (MS) grade.There was correlation between sugarcane canopy structures and pokkah boeng disease resistance.The sugarcane variety (clone) with compact shape,stand upright and narrow leaves,and easy to defoliate displayed stronger resistance to pokkah boeng disease.The sugarcane variety (clone) with loose shape,wide leaves,and uneasy to defoliate showed the weaker resistance to pokkah boeng disease.关键词
甘蔗/梢腐病/叶冠形态/Fusarium verticillioidesKey words
sugarcane/pokkah boeng disease/canopy structures/Fusarium verticillioides分类
农业科技引用本文复制引用
王泽平,林善海,梁强,李毅杰,李长宁,段维兴,何铁光..甘蔗叶冠形态与抗梢腐病相关性探讨[J].中国农业大学学报,2017,22(7):40-46,7.基金项目
广西自然科学基金项目(2016GXNSFBA380046) （2016GXNSFBA380046）
广西自然科学基金重点项目(2014GXNSFDA118015) （2014GXNSFDA118015）
广西重点研发计划项目(桂科AB16380126) （桂科AB16380126）
