Studies on success rate of grafting methods on walnut (Juglans regia L.) at different time under polyhouse condition

Two factors of different grafting methods tongue and cleft grafting with four different time 1st week of January, 3rd week of January, 1st week of February and 3rd week of February were find out the best method of grafting, and appropriate grafting time under polyhouse condition at Fruit nursery, department of Fruit Science, VCSG Uttarakhand University of Horticulture and Forestry, Bharsar, Pauri Garhwal, Uttarakhand, India. The results showed significant effects on number of days to first sprout, length of new shoot, diameter of shoot, number of branches, number of leaves, leaf area, survival of grafted plants (%) and total saleable plants (%). Minimum days taken to sprouting (45.57 days), maximum shoot length (52.40 cm), diameter of shoot (0.87cm), number of branches (17.56), number of leaves (85.59), leaf area (30.55), survival of grafted plants (46%), and total saleable plants (93.77%) were observed in cleft grafted plants on 1st week of February. Cleft grafting showed significant results among most of the parameters observed. Hence for better success rate of grafting methods in walnut through cleft grafting on 1st week February is recommended under polyhouse.