Study on Relationship Between Cucumber Germplasm and Propamocarb Residue Using Subjective Rating Technique  

作　　者：Wu Peng Qin Zhi-wei Zhou Xiu-yan Wu Tao Xin Ming Guo Qian-qian 

机构地区：[1]College of Life Science, Agriculture and Forest, Qiqihar University [2]College of Horticulture, Northeast Agricultural University

出　　处：《Journal of Northeast Agricultural University(English Edition)》2014年第1期1-9,共9页东北农业大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(31272158);863 Program of the National Science and Technology of China(2012AA100105)

摘　　要：Propamocarb （PM） residue in cucumber （Cucumis sativus L.） receives little attention. As is well known to all, high PM residue of cucumber could lead to increase in the violation rates of maximum residue limits and ultimately cause harm to human health. Knowledge of PM residue could help cucumber breeders in developing cultivars with low PM residue and improving cucumber quality. In this study, 32 representative cucumber accessions （26 breeding lines and six cultivars） from different regions of China were evaluated for their PM residue in fruit and leaf to provide meaning to the subjective rating, which was highly correlated with PM residual content of fruit （r=0.97） and leaf （r=0.94）. In addition, PM residual content of North China ecotype was the highest and Pickling ecotype was the lowest in fruit and leaf of cucumber. The leaf had significantly higher （P〈0.01） PM residual content than the fruit, and poor correlation between leaf and fruit was represented. This study verified PM residual relationship between fruit and leaf, and laid the foundation for further identification of germplasm resources and breeding of new varieties for low PM residue of cucumber.Propamocarb （PM） residue in cucumber （Cucumis sativus L.） receives little attention. As is well known to all, high PM residue of cucumber could lead to increase in the violation rates of maximum residue limits and ultimately cause harm to human health. Knowledge of PM residue could help cucumber breeders in developing cultivars with low PM residue and improving cucumber quality. In this study, 32 representative cucumber accessions （26 breeding lines and six cultivars） from different regions of China were evaluated for their PM residue in fruit and leaf to provide meaning to the subjective rating, which was highly correlated with PM residual content of fruit （r=0.97） and leaf （r=0.94）. In addition, PM residual content of North China ecotype was the highest and Pickling ecotype was the lowest in fruit and leaf of cucumber. The leaf had significantly higher （P〈0.01） PM residual content than the fruit, and poor correlation between leaf and fruit was represented. This study verified PM residual relationship between fruit and leaf, and laid the foundation for further identification of germplasm resources and breeding of new varieties for low PM residue of cucumber.

关 键 词：CUCUMBER ECOTYPE gas chromatography GERMPLASM propamocarb residue 

分 类 号：S642.2[农业科学—蔬菜学]