By that time the Kihara Institute for Biological Research in Japan had developed a breeding technique for seedless watermelons, but it was not very reliable and not universally applicable. Chen set about conducting research, and after three years of effort, in 1962, successfully cloned Taiwan's first seedless watermelon: the Fengshan No.
當時日本「木原生物研究所」已研發出無籽西瓜的培育技術，但成果不穩定也不普遍，陳文郁便著手進行研究，經過 3 年努力，1962 年以「複製技術」成功培育出台灣第一顆無籽西瓜「鳳山一號」。