Rootstocks for Citrus Industry
Authors: Swapnil D. Deshmukh1, Dr. S. R. Patil2, Shakti A. Tayade3 and Pravin L.Deshmukh4
1,3&4 Ph.D. Scholar and 2 Professor
Department oh Horticulture, Dr. P.D.K.V., Akola
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In India, citrus is grown 1055 thousand ha with production of 12,746 thousand tons with average productivity of 12 tons/ha. The most important commercial citrus cultivars in India are mandarin, sweet orange and acid lime. Total mandarin cultivation 397 thousand ha, 4113 thousand tons production and 10 tons/ha as productivity, while sweet orange and acid lime cultivation 244 thousand and 245 thousand ha, 2438 thousand and 3468 thousand tons production while 14 and 10 tons/ha productivity respectively. The true citrus fruits are generally considered to be of old world origin having involved in a region bound by Southern China, North eastern India and East Indian archipelago.

Rootstock in Citrus has been a horticultural practice for over a century, it is important to have understanding and full knowledge of rootstocks their characteristics, usefulness and availability. One of the most important factors affecting the performance of citrus grafted trees, is the stock on which scion is worked. The part comprising the root system is called "rootstock" and which comparing shoot system is termed as 'scion'. It has also been well established that the different species/varieties of citrus require different combination of rootstock and scion, which proved fit for one set of agro-climatic conditions. Thus it is evident that rootstocks are of great importance in the intensive cultivation of citrus. Citrus rootstocks have pronounced effects on scion vigor, fruit size, yield, juice content and quality, tolerance to cold, drought, salt, alkalinity and leaf nutrient content. Rootstocks also differ in their ability to soil with different textures, root distribution and mycorrhizal dependency.

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