Chen employed cell culture techniques to replicate the watermelon's 22 pairs of chromosome into 44 pairs, then crossed the resulting plants with the original variety, modifying it into a generation that could not reproduce (i.e., a seedless watermelon).
陳文郁就是利用細胞培養，把西瓜的 22 對染色體複製成 44 對，再把這個親種和原來的品種交配，改良出沒有繁殖力的子代（無籽西瓜）。