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Propagation of Citrus by Stem Cuttings and Seasonal Variation in Rooting Capacity

Keywords: Stem cuttings , callus , rooting percentage , IBA , juvenile

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Abstract:

The rooting capacity of spring cuttings from various citrus species and varieties, and the seasonal variation in the rooting potential of stem cuttings of two trifoliate orange strains were determined. Rooting abilities varied among species and varieties (0-100 %). Rough lemon and lemon had 100 % rooting while Tengu and `Kuno` satsuma mandarin had 0 %. In common trifoliate orange, the maximum rooting (100 %) was found in June cuttings followed by July cuttings (90 %) and the minimum rooting (30 %) was recorded in September. In Flying Dragon cuttings, the maximum rooting (100 %) was in July cuttings followed by June cuttings (96.7 %) and the minimum was in May cuttings (26.7 %). In both strains, cuttings collected from mature trees in all months and from juvenile trees between October to March failed to form callus and root. June and July seem to be the most appropriate months for the collection of stem cuttings for the propagation of juvenile common and Flying Dragon trifoliate oranges.

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