When germplasm materials of sweetpotato plant in the field, they confront with serious infection of virus, influence of pest and natural disaster.
甘薯种质资源的大田种植保存面临着严重的病毒感染以及病虫害、自然灾害的影响。
Chunlan, selected from progenies of natural hybrid of Tie Guanyinkept in the germplasm garden of Tea Research Institute, was a newly bred Oolong tea cultivar with early-growth and high-quality.
春兰是从福建省农科院茶叶研究所茶树品种资源圃铁观音的自然杂交后代中，经系统选育而成的一个优质早生乌龙茶新品种。
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