STANDARDISATION OF HI-TECH PROPAGATION PROTOCOL IN ACID LIME (Citrus aurantifolia Swingle) THROUGH CUTTINGS
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Date
2019-08
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University of Horticultural Sciences, Bagalkot
Abstract
The present investigation entitled “Standardisation of hi-tech propagation protocol in acid lime (Citrus aurantifolia Swingle) through cuttings” was carried out during 2018-2019 at College of Horticulture, Bagalkot conducting three experiments. In the first experiment, there were significant differences recorded among various treatments, hardwood cuttings, 500ppm IBA and cocopeat have been recorded as the best combintion with respect to both shoot and root parameters. In the interaction, T57 (C3 Hardwood cutting+ M4 Cocopeat + G1 IBA 500 ppm) gave the best response with respect to the parameters viz., percentage of sprouted cuttings (47.22 per cent), number of sprouts at 30, 60 and 90 DAP (4.6, 24.00 and 7.40), respectively, length of shoots at 90 DAP (14.59 cm), average fresh weight (13.52 g) and dry weight (10.19 g), number of primary root (11.10), length of the longest root (15.47 cm) and percentage of rooted cuttings (44.44 %).
In the second experiment, significant differences were recorded among treatments, hardwood cuttings and shade net has been recorded as the best combination with respect to both shoot and root parameters. In the interaction, T3 (C3 Hardwood cutting + T1 Shade net) exhibited the maximum sprouting (66.66 %), number of sprouts at 30 DAP (3.67), fresh weight and dry weight (7.40 and 4.52 g), length of the longest root (11.38 cm) and rooting percentage (64.81 %). The treatment T9 (C3 Hardwood cutting + T3 Mist house) gave the maximum number of leaves at 90 DAP (14.53), length of shoots at 90 DAP (9.15 cm) and number of primary root (5.13). The third experiment, among the treatments, T4 (Vikram) recorded the maximum sprouting percentage (91.66 %), length of shoots at 30, 60 and 90 DAP (1.41, 6.23 and 13.10 cm, respectively), number of primary roots (4.20), root length (18.70 cm) and percentage of rooted cuttings (88.88 %). The study revealed that the combination of hardwood cutting, cocopeat, shade net and 500 ppm IBA was the best to induce more shooting and rooting parameters in acid lime cv. Vikram and other cultivars.