Evaluation of Performance of 3 American Avocado Cultivars Introduced in Zhanjiang of Guangdong
To know the growth and development period,fruit quality traits,and adaptability of three American avocado cultivars(Hass,Tonnage,and Wilson)introduced into the National Tropical Fruit Germplasm Re-sources Nursery in Zhanjiang,Guangdong,flower morphology,flowering characteristics,Physiological char-acteristics of flowering,pollination and fertilization and main fruit traits of these cultivars were observed and compared to better understand their performance in China.The results showed that three avocado cultivars can bloom and bear fruit normally in Zhanjiang of Guangdong with flowering period from late February to middle April,10-20 days shorter than that of at their origin.The type of flower of Hass and Tonnage was type A,and Wilson was type B.The pollen germination rate of Hass,Tonnage,and Wilson was 87％,75％,and 82％,respectively.The best pollination period was observed to be 3 hours after flowering.The fruit physio-logical maturity period was early November for Hass,early August for Tonnage,and early September for Wil-son.The fruit flavor,taste,and color traits were consistent with those of the introduction area,while the av-erage single fruit weight of Wilson was twice than that of in the introduction area,the single fruit weight of Tonnage was only 69.5％of that in the introduction area,and the single fruit weight of Hass was similar to that of in its origin.
avocadoHassintroductionflowering periodpollen germination ratesingle fruit weight
万方数据
维普
