栗绛蚧形态生物指标与发生量关系研究  

Study on the Relations between Kernes nawai Kuwana Form Indicatrixs and Occurrence Amount

作　　者：丁玉洲[1] 方国飞[1] 王成庆[2] 方泰全 汪成海 

机构地区：[1]安徽农业大学森林利用学院,合肥230036 [2]金寨县林业局

出　　处：《安徽农业大学学报》2001年第1期77-81,共5页Journal of Anhui Agricultural University

摘　　要：栗绛蚧是长江流域板栗主要害虫之一 ,常引起板栗大幅度减产。该害虫自然种群内雌虫个体间发育差异很大 ,并与其生殖力、死亡率及后代的发生量有密切关系。以雌虫体重、体积及虫体直径为形态指标 ,将雌虫发育分为 、 、 三个等级 ,各级体重 ( x1 )、体积 ( x2 )、虫体直径 ( x3 )分别为 级 ( 0 .1 0 1± 0 .0 0 4 )g,( 0 .1 6 3± 0 .0 1 2 ) m L,( 6 .6 2± 0 .1 7) mm; 级 ( 0 .0 6 52± 0 .0 0 6 ) g,( 0 .1 4 1± 0 .0 0 9) m L,( 6 .1 4± 0 .1 4 ) mm; 级 ( 0 .0 2 9± 0 .0 0 2 ) g,( 0 .0 6± 0 .0 0 4 ) m L,( 5.0 9± 0 .1 3) mm。发生量 ( Y)分别与体重 ( x1 )、体积 ( x2 )、虫体直径 ( x3 )成正相关关系 ,其线性回归方程分别为 :Y=-6 72 .7+ 381 78.7x1 ,Y=-1 1 4 1 .6 + 2 2 86 0 x2 ,Y=-8588+ 1 7359.3x3 ;相关系数 r1 =0 .9939,r2 =0 .8896 ,r3 =0 .96 39。Kernes nawai Kuwana was one of the most serious pests on Chestnut.The feamale pests developed differently and were closely related to their reproductive capacity,death rate and occurrence amount of the later generation.The feamale pests could be classified into three grades according to their weight,volume and diameter.Regressive results indicated that there were positive correlation between occurrence amount and weight,volume and diameter,the coefficient were 0 9939,0 8896 and 0 9639,respectively,and the regression equations were as follows:Y=-672 7+38178 7x 1,Y=-1141 6+22860x 2,Y=-8588+17359 3x 3.

关 键 词：栗绛蚧 体重 体积 直径 发生量 相关系数 虫体形 

分 类 号：S763.301[农业科学—森林保护学] S436.64[农业科学—林学]