Studies on growth and survival of stone grafts as influenced by age of seedling rootstock in mango (Mangifera indica L.) cv. Amrapali
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Abstract
Stionic relationship is an important factor for successful graft production. Stone grafting was performed by cleft method in the month of July-August on seedling rootstocks (Mango seedlings) of on four age groups i.e. 5 days, 10 days, 15 days and 20 days using Amrapali as scion stock at Kanpur district of Uttar Pradesh. The objective was to analyze age effect of mango seedling rootstock after stone grafting of cultivar Amarpali. Statistically data was analyzed with randomized block design replicating single interval five times. The height (24.4 cm) and sprouting percentage (83%) of scion, girth of rootstock and scion (6.3 mm) was significantly higher on grafts made on 10 days old rootstocks and minimum-sprouting percentage was recorded with 20 days old rootstocks. In vegetative parameters length (17.12 cm) and width (4.80 cm) of leaf was recorded maximum on 10 days old and minimum on 5 days old rootstock. The higher survival percentage was exhibited by 5 days and 10 days old rootstock, which shows suitability for this technique. It was revealed that stone/epicotyl grafting performed better in terms of growth and survival when rootstocks up to 10 days old were used for grafting.
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Mango, Rootstock, Sprout, Stone grafting, Survival
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