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甘薯蔓割病是我省甘薯生产上广泛发生的一种土传镰刀菌枯萎病.沿海薯区一般年份株发病率为5～20%,某些病重四株发病率则达80%以上.不同品种在田间表现明显的抗病性差异,利用抗病品种进行防治是经济而有效的措施.摸清资源品种中的抗源材料,合理评价育成品种的抗病性,将有利于甘薯育种中的抗源利用和抗病品种推广.
Sweet potato tuberculosis is a kind of soil-borne Fusarium wilt that occurs widely in the production of sweet potato in our province. The incidence rate of common year in the coastal potato area is 5 ~ 20% and the incidence of some of the four cases is over 80%. Different varieties show distinct disease resistance differences in the field, and it is economical and effective to use the resistant varieties for prevention and cure .Taking clear the source materials in the resource varieties and rationally evaluating the disease resistance of the cultivated varieties will be beneficial to the sweet potato breeding The use of anti-source and disease-resistant varieties to promote.