甘薯杂种F_1代主要经济性状表现及组合综合评价

PERFORMANCE OF MAIN ECONCOMIC CHARACTERS OF HYBRID F 1 ANDTHEIR COMPREHENSIVE EVALUATION IN SWEET POTATO

通过对甘薯１７个杂交组合的５个主要经济状性进行灰色关联分析，并结合按照品种选育目标入选的实生系薯块产量表现，综合评价了各组合的生产力及后代的选择潜力。结果表明，宁１８０×６７－１２、潮薯１号×绵粉１号、８１２９－４×８７－１２２７、６７－１２×美国红、红皮早×农林１０号等５个组合为强优组合，绵粉１号×亚４和徐薯１８×成都红２个组合表现较差，予以淘汰。

This paper evaluated comprehensively the productivity of 17 sweet potato hybrid combinations by the grey correlative analysis of 5 main economic characters and tuber yield performance of the selected seedling clones for general breeding purpose.The result indicated five combinations including Lin 180×67-12,Chaoshu 1×Mianfen1,8129-4×87-1227,67-12×Meiguohong, Hongpizao×Longlin10 etc. were excellent and the combinations Mianfen 1× Ya 4 and Xushu 18×Chengduhong performed bad.