螟虫为害甘蔗苗期对其生长和产量的影响  

The Effect of Borer Damage at Seedling Stage of Sugarcane on Its Growth and Yield

作　　者：熊焰 王辉[1] 王军[1] 王露露 周霞[1] 王健华[1] 伍苏然[1] XIONG Yan;WANG Hui;WANG Jun;WANG Lulu;ZHOU Xia;WANG Jianhua;WU Suran(Institute of Tropical Bioscience and Biotechnology of Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571101)

机构地区：[1]中国热带农业科学院热带生物技术研究所,海南海口571101

出　　处：《甘蔗糖业》2022年第5期26-31,共6页Sugarcane and Canesugar

基　　金：农业农村部农作物病虫鼠害疫情监测与防治(125A0608),国家重点研发计划子课题(2020YFD1000601)。

摘　　要：为了明确螟虫为害甘蔗苗期对甘蔗生长和产量的影响,田间设置4种不同处理,即每丛2芽(Y-Y)、每丛1芽1螟虫蛀芽(Y-M)、每丛1芽(Y)、每丛2螟虫蛀芽(M-M)的蔗苗,然后对不同处理的蔗苗进行分蘖与有效茎数、蔗株主要农艺性状、产量和锤度进行调查分析。试验结果表明:当甘蔗苗期受到轻微螟害时(Y-M),其分蘖株数显著低于种苗充足(Y-Y)的分蘖株数,但两者有效茎数、节间量、株高、茎粗、单茎重、产量和锤度之间并无显著差异。当甘蔗苗期螟虫为害严重时(M-M),其各项指标均显著低于种苗充足(Y-Y)的指标。当种植的甘蔗苗不足时(Y),其分蘖株数、有效茎数和产量显著低于种苗充足(Y-Y)对应的分蘖株数、有效茎数和产量,但两者节间量、株高、茎粗、单茎重和锤度之间并无显著差异。与种植的甘蔗苗不足(Y)相比,种植甘蔗苗充足但受到轻微螟害(Y-M)的产量显著多于甘蔗苗不足(Y)的产量,但其他指标之间无显著性差异。4种不同处理对于甘蔗生长和产量的影响按严重程度:严重螟害>种苗不足>轻微螟害>种苗充足。In order to clarify the effect of stem borer damage at seedling stage of sugarcane on its growth and yield.Sugarcane seedlings with four different treatments(Y-Y,Y-M,Y,M-M)were set up,and then tiller,millable stalks,main agronomic characteristics(internodes,plant height,stem diameter,stem weight),yield and hammer of sugarcane with different treatments were investigated and analyzed.The results showed that when sugarcane was slightly damaged(Y-M)in seeding stage,the number of tillers was significantly lower than that with sufficient seedlings(Y-Y),but there were no significant differences between other indicators of the two treatments.When borer damage in sugarcane seeding stage was serious(M-M),all indicators were significantly lower than those of sufficient seedlings(Y-Y).When sugarcane seedlings were insufficient(Y),the number of tillers,millable stalks and yield were significantly lower than those with sufficient seedlings(Y-Y),but there were no significant differences between main agronomic characteristics and hammer.Compared with insufficient sugarcane seedlings(Y),yield of slightly borers damage(Y-M)was significantly higher than the yield of insufficient sugarcane seedlings(Y),but there were no significant differences between other indicators.The effects of four different treatments on sugarcane growth and yield are classified according to severity:severe borers damage,followed by,insufficient seedlings,slightly borer damage and sufficient seedlings.

关 键 词：甘蔗苗期 螟虫为害 缺苗 甘蔗生长 产量 

分 类 号：S566.1[农业科学—作物学]