单叶刺槐半同胞子代虫害指数及其与叶色参数的相关性  

Pest Index of Half Sib Progenies of Robinia.pseudoacaciaf.unifolia and Its Correlation with Leaf Color Parameters

作　　者：徐立人 曹丽娜 刘宠 柳俊明 王立成 李清泉 杨敏生[3] 张军[3] 李彦慧[1] XU Li-ren;CAO Li-na;LIU Chong(College of Landscape Architecture and Tourism,Hebei Agricultural University,Baoding,Hebei 071000)

机构地区：[1]河北农业大学园林与旅游学院,河北保定071000 [2]河北省保定市满城区苗圃场,河北保定071000 [3]河北农业大学林学院,河北保定071000

出　　处：《安徽农业科学》2020年第17期152-155,共4页Journal of Anhui Agricultural Sciences

基　　金：河北省重点研发计划项目“刺槐优异种质创制及新品种培育”(19226330D);国家重点研发计划课题“刺槐速生建筑材林高效培育技术研究”(2017YFD0600503)。

摘　　要：以单叶刺槐母本(A1-1)及8个叶形产生明显变异的半同胞子代无性系(A2-1、A15-1、C23-1、B24-3、A8-4、C9-2、A21-1、A16-1)为材料,调查统计各无性系的虫害指数,并测定各无性系健康叶片的叶色参数,通过相关性分析,筛选与虫害指标相关度高的叶色参数,进而建立方程模型,并对各样本的抗虫性作出评价。结果表明,各无性系虫害的程度与叶形变异无关,但与叶色参数L*之间呈显著负相关(P<0.05),方程为y=-4405.111x+103.220 x 2-0.806x 3+62666.130,相关系数为-0.757。各无性系按抗虫性强弱可分为4类,第I类包括A8-4、A16-1、A15-1、C23-1,抗虫性相对较强,其中A15-1兼具抗虫性与叶色特异性;第Ⅱ类包括A1-1、B24-3、C9-2,抗虫性中等;第Ⅲ类为A21-1,抗虫性较弱;第Ⅳ类为A2-1,抗虫性弱。Based on Robinia.pseudoacaciaf.unifolia female parent(A1-1)and its eight half progenies(A2-1,A15-1,C23-1,B24-3,A8-4,C9-2,A21-1,A16-1)with obvious leaf shape variation,the pest index of each clone was investigated and counted,and the leaf color parameters of healthy leaves of each clone were measured.Through correlation analysis,the leaf color parameters with high correlation with pest index were screened,and then cube was built.The resistance of each sample was evaluated.The results showed that the degree of pest was not related to the variation of leaf shape,but was negatively related to the leaf color parameter L*(P<0.05).The equation was y=-4405.111x+103.220x 2-0.806x 3+62666.130,and the correlation coefficient was-0.757.The clones can be divided into four categories according to their insect resistance.The first category includes A8-4,A16-1,A15-1 and C23-1,with relatively strong insect resistance,in which A15-1 has both insect resistance and leaf color specificity;the second category includes A1-1,B24-3 and C9-2,with medium insect resistance;the third category is A21-1,with weak insect resistance;the fourth category is A2-1,with weak insect resistance.

关 键 词：单叶刺槐 叶色参数 虫害指数 相关性分析 抗虫性 

分 类 号：S792.27[农业科学—林木遗传育种]