通过广泛引进鉴定甘薯品种资源,筛选出胡萝卜素含量高、开花习性好的高胡萝卜素甘薯亲本徐22 5、96 58 2等。并对性状遗传特性进行了测定,明确了胡萝卜素的遗传为加性效应,F1代与亲本存在着极显著的正相关,相关系数r=0.9416 ,据此提出高胡萝卜素甘薯亲本筛选的基本原则。 Through the introduction of sweet potato varieties widely introduced resources, screened high carotene content, good flowering sweet carotene sweet potato parents Xu 22 5,96 582 and so on. The inheritance of carotene was determined as additive effect. There was a significant positive correlation between F1 generation and parents, the correlation coefficient r = 0.9416. Based on this, the basic principle of high-carotene sweetpotato selection .