Study the effects of girdling time to flowering time, fruit setting and yield of Xuan Van pomelo in Tuyen Quang province
DOI:
https://doi.org/10.51453/2354-1431/2020/378Keywords:
Girdling, fruit setting, yields Xuan Van pomeloAbstract
Xuan Van pomelo originated in Xuan Van commune, Yen Son district, Tuyen Quang province, Xuan Van pomelo is a sweet early - ripening. Currently, Xuan Van pomelo is not only being identified as one of the strongest crop plants in Tuyen Quang province, but also it is capable of developing in the Northern midland of mountainous provinces. Xuan Van pomelo has large numbers of flowers, but the rate of fruiting is low because of adverse factors during the flowering period. In order to regulate the flowering process and increase fruiting rate, the studies on the time of girdling of Xuan Van pomelo showed that: girdling on December 25 every year Xuan Van pomelo flowering earlier from 1 to 7 days, increased the rate of fruit bearing from 31.3 to 35.8%, the fruit yield reached the highest (from 31.1 to 34.3 kg fruit/tree), the difference was statistically significant at 95% confidence level. Girdling on December 25 every year has a pronounced deciduous effect in adjusting flowering time, raising fruiting rate, thereby improving the yield of Xuan Van pomelo.
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