英文摘要

Now,goodvarietiesofcommoncultivatedvegetablesarelacking,andthereispressingneedtofindmorenewsuperiorvarieties.Theconsumerslovenewvegetablevarieties,favoringpricedqualityproduce.Nowadays,peoplearegettingmoreandmoreconcernedabouthealthcare,anddistrustfuloffo ......（本文共 1563 字 , 2 张图）     [阅读本文] >>