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Title:: Oviposition Selection of Drosophila suzukii（Diptera：Drosophilidae） on Six Nectarine Cultivars and Its Correlation to the Physiological Characteristics of Nectarine Cultivars

Author(s):: LIU Sha1; 2; GAO Huanhuan3; LYU Zhaoyun2; ZHAI Yifan2; DANG Haiyan4; LI Qiang1; (1.College of Plant Protection,Yunnan Agricultural University,Kunming,Yunnan 650201；2.Institute of Plant Protection,Shandong Academy of Agricultural Sciences,Jinan,Shandong 250100；3.Shandong Academy of Grape,Jinan,Shandong 250100；4.Shanxi Entry-Exit Inspection and Quarantine Bureau,Taiyuan,Shanxi 030024)

Keywords:: nectarine; Drosophila suzukii; physiological index; oviposition selection; correlation

Abstract:: Nectarine was used as material,the non-selective spawning amount laid by Drosophila suzukii on ‘Shuguang’‘Chunguang’‘Fengguang’‘Zhongyou 4’‘Zhongyou 7’and ‘Zhongyou 8’ intact and sliced nectarine were determined.The rigidity,soluble solids,amino acids,protein,soluble sugar and pectin content of each variety were also studied.The correlation between non-selective spawning amount and physiological indexes such as rigidity and soluble solids was studied by two-factor Person correlation method,so as to provide a basis for reasonable selection of varieties in nectarine production.The results showed that the number of eggs laid in the intact nectarine was negatively correlated with the rigidity,positively correlated with the content of amino acids,and not significantly correlated with the content of protein,soluble sugar and pectin.Therefore,the high amino acid content,low rigidity of the nectarine variety were more attracted to Drosophila suzukii.