Analysis of difference of the phenotypic characteristics of vegetable type and fruit type papayas
In order to provide basis for the formulation of the DUS(specificity,consistency and stability)test operation manual and the revision of the test guide,also lay a foundation for the creation and evaluation of dif-ferent types of papaya germplasms,49 phenotypic characteristics of 3 vegetable type and 3 fruit type papaya varieties were observed and analyzed.The results showed that there were significant differences in 24 charac-teristics,such as fruit longitudinal diameter,fruit shape,single fruit weight,and the obvious different charac-teristics were mainly related to the fruit maturity,among which,the 17 characteristics reached extremely sig-nificant differences,such as fruit shape,single fruit weight,and central cavity shape of fruit.There were ob-vious differences between vegetable type and fruit type papaya varieties in 14 characteristics,such as anthocya-nin color intensity of petioles,flower corolla length,fruit longitudinal diameter,which can be identified as the differentiated phenotypic characteristics of vegetable type and fruit type papayas,and can be used as the main characteristics to distinguish these two types of papayas.There were obvious differences among four character-istics of vegetable type papaya varieties,such as plant height at first flowering,plant height,petiole length,which could be used as the main characteristics to distinguish vegetable type papaya varieties.These differenti-al characteristics can provide reference for revising the DUS test guidelines for papaya.
万方数据
维普
