Satish ChandAgarwal, Hitesh2018-05-292018-05-292017-05http://krishikosh.egranth.ac.in/handle/1/5810048103The present investigation was carried out at Sainik Farm, Patharchatta, Pantnagar, District Udham Singh Nagar, Uttarakhand, during October, 2015 to June, 2016. The experiment was conducted to study the impact of girdling on flowering, fruiting and yield attributes in Litchi cv. Late Bedana. Twenty year old 21 litchi trees consisted of 7 treatments with two level of girdling severity of 25% primary branches and 50 % primary branches with the combination of girdling width of 2 mm, 4 mm and 6 mm, along with ungirdled control which are tested with randomized block design with three replications. The results indicated that all the litchi trees which were subjected to different severity and width of girdling have more fruit set (%), fruit retention (%), yield and good fruit quality as compared to control. However, the treatment girdling of 50% of primary branches + 4 mm wide had significantly effect on improving fruit set (38.44%), fruit retention (14.07 %), fruit yield (57.02 kg/tree) and good quality fruits (TSS- 19.290 Brix, acidity-0.61%, ascorbic acid-29.45 mg/100g pulp and TSS: acid ratio-31.45). Girdling blocks the downward flow of carbohydrate from leaves to roots thus the carbohydrate may accumulate above the girdled portion which resulted in additional supply of carbohydrates from leaves to fruits, therefore, the fruit yield and fruit quality of litchi may increase.ennullThesis