Research on the Technology of Promoting Flowering and Fruit Setting,and Quality Enhancement for Dianjiang Late Pomelo
In the production of Dianjiang late pomelo,there are problems of low fruit set rate and poor fruit quality.In order to find out the suitable measures to promote flowering and inhibit sprouting,and improve fruit quality,6-year old full-fruiting Dianjiang late pomelo plants were used as test materials to compare the effects of foliar spraying with aliconazole,trunk girdling and root cutting treatment alone or in combination in September on promoting flowering and inhibiting sprouting,effects of artificial cross-pollination with different varieties in April during the flowering stage on fruit dropping,and effects of different potash fertilizers applied twice at intervals from the end of October to mid November on improving the fruit quality.Results showed that foliar spraying of uniconazole,girdling of the main trunks and root cutting alone or in combination could inhibit the vegetative growth of the shoots in following spring and promote flowering,among which,unicon-azole+girdling treatment had the best effect on controlling the sprout of the pomelo and promoting the flower-ing.Cross-pollinations could improve the fruit set rate to different extents,among which,the best effect was found by pollination with Changshou Shatian pomelo,with the fruit set rate of up to 85％.Potash fertilizer treatment could improve the quality of the fruits of Dianjiang late pomelo.Application of potassium sulphate remarkably improved the quality of fruits,while application of potassium humate and potassium dihydrogen phosphate significantly increased the vitamin C content of fruit.
Dianjiang late pomelogirdlinguniconazolepollination varietypotash fertilizerinhibit shootpromoting floweringfruit preservingfruit quality
万方数据
维普
