Fruit-Setting Characteristics of Ilex verticillat Oosterwijk Introduced in the Central Yunnan Region
The central Yunnan region has become an important planting area of Ilex verticillat in China.In order to solve the problem of uneven Ilex verticillat cut/potted quality in the local area,provide reference for the formation of cultivation measures and the management of fruit-setting stage for Ilex verticillat Oosterwijk in the central Yunnan region,in this study,taking Ilex verticillat Oosterwijk planted in Anning as the test material,its phenology was observed,the pollen vitality of male flowers and the stigma receptivity of female flowers were measured,and the fruit growth and development was observed through artificial pollination.The results showed that Ilex verticillat Oosterwijk planted in the central Yunnan region sprouted in the middle of March,branched in the early of April,bloomed in the middle of May,fruit-enlarged from the early of June to the early of September,and fruit-ripened from the middle of September to the early of October.The germination rate of fresh pollen from male flowers was 8.68%by cultured in vitro for 1 hour and 25.12%by cultured in vitro for 6 hours,and the fresh pollen germination rate on the female stigma reached 75.23%,the average length of pollen tubes was 1 088.70 μm at 2 days after pollination and entered the ovules,which indicated that the female and male flower had normal fertility.And it took approximately 100 days to getting-red fruits and 125 days to the ripen fruits after the artificial pollination.And its dynamic growth curve was fast at first and then slow,showing a single S curve.
Ilex verticillatcentral Yunnan regionphenologyfertilityfruit growth and development
万方数据
维普
