Effects of Double Girdling Applications on Fruit Yield, Pomological Characteristics and Leaf Carbohydrates of Some Lemon Cultivars

In present study, the effects of double girdling on fruit yield, pomological characteristics and carbohydrate content of leaves in 'Interdonato, Kibris and M. Mehmet' lemon cultivars were investigated. It was found that the double girdling applications provided 2 times more fruit yield than their controls without disturbing the fruit quality. No significant effect was found on reducing sugar, sucrose, total sugar and starch contents of leaves of girdling in the lemon cultivars except for some periods. It was found that while high level of total carbohydrates in January was not enough on its own to get high yield, double girdling application had a positive effect on the yield by rising the level of total carbohydrates especially in July.