Study of the Trend of Graft :union: Formation in Minigrafting of Walnut (Juglans regia L.)

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Abstract

Walnuts orchards in Iran are not uniform due to sexual propagation. Asexual propagation including minigrafting will lead to uniform orchards and nut production. To study the trend of grafting :::union::: formation in walnut some microscopic slides were prepared in different time after 'Serr' cultivar was minigrafted on seedlings. Different stages of grafting process including callus formation and development, necrotic layers deterioration, cambium differentiation and vascular tissues formation in samples were evaluated in 3, 7, 10 weeks and 6 and 12 months after minigrafting. Results indicated that successful minigraft was observed after 12 months in winter minigrafted seedlings.

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Seed and Plant Production Journal
Volume 29, Issue 1
April 2013
Pages 131-135

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