Preliminary evaluation of 110 peach/nectarine varieties on the gummosis disease resistance in Zhejiang Province
This study aimed to screen highly resistant varieties by investigating field gummosis disease levels in 110 local peach/nectarine varieties and selected varieties of 4-to 7-year-old trees.Combined with pedigree analysis,the source of the gummosis disease resistant germplasms was traced.The results showed that there were significant differences in the levels of gummosis disease among different peach/nectarine varieties,and the resistance gradually decreased with the increase of tree age.Among the 80 varieties that showed relatively stable levels of gummosis disease,nine varieties showed high resistance,most of which were peach varieties,such as'Qiubaitao'and'Nanshantiantao';40 varieties showed resistance,such as'Hakuri'and'Yuanmeng';16 varieties showed moderate resistance,such as'Hujingmilu'and'Jinxiu';nine varieties were susceptible to the disease,such as'Feicheng Baili'and'Kurakato Wase';and six varieties showed high susceptibility,such as'Bailutao'and'Huyou 278'.The peach varieties were generally more resistant than the nectarine varieties.According to the genetic pedigrees,some resistant and highly resistant varieties,which originated from the traditional Chinese local variety'Chinese Cling',had a genetic relationship.This research provides a reference for the selection of resistant varieties in production,as well as for further genetic and breeding applications.
NETL
NSTL
万方数据
维普
