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  • ThesisItemOpen Access
    EFFECT OF SCION DIP TREATMENT OF IAA, BAP AND ZnSO4 ON THE SUCCESS OF EPICOTYL GRAFTING IN MANGO cv. ‘KESAR’
    (FRUIT SCIENCE DEPARTMENT, ASPEE COLLEGE OF HORTICULTURE AND FORESTRY NAVSARI AGRICULTURAL UNIVERSITY, NAVSARI, 2016-02) THONGDOK, LE KHANDU; Patil, S.J.
    The present study was carried out under nethouse conditions at Regional Horticultural Research Station, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, Gujarat, India during the year 2015-16 to investigate the “Effect of scion dip treatment of IAA, BAP and ZnSO4 on the success of epicotyl grafting in mango cv. Kesar”. The experiment was laid out in Completely Randomized Design having thirteen treatments, comprising untreated control, distilled water, ZnSO4 500 mgl-1, ZnSO4 750 mgl-1, IAA 750 mgl-1, IAA 750 mgl-1+ ZnSO4 500 mgl-1, IAA 750 mgl-1+ ZnSO4 750 mgl-1, BAP 10 mgl-1, BAP 20 mgl-1, BAP 10 mgl-1+ ZnSO4 500 mgl-1, BAP 10 mgl-1+ ZnSO4 750 mgl-1, BAP 20 mgl-1+ ZnSO4 500 mgl-1 and BAP 20 mgl-1+ ZnSO4 750 mgl-1 treatment. The effect of these treatments on sprouting, graft success, height of graft, girth of scion, girth of rootstock, girth of union, number of leaves, total leaf area, survival percentage and number of branches were studied. The results of present investigation revealed that among different treatments, BAP 20 mgl-1 + 750 mgl-1 ZnSO4 was found to be beneficial for early sprouting, graft success and survival percentage. Girths of the grafts showed variable result with maximum girth of rootstock noted in IAA 750 mgl-1+ ZnSO4 750 mgl-1, maximum girth of scion was observed in IAA 750 mgl-1 and maximum girth of union was found in case of 10 BAP mgl-1+ ZnSO4 500 mgl-1 treatment. The maximum height was observed in scion treated with ZnSO4 500 mgl-1. Whereas, the total number of leaves were found maximum in of ZnSO4 750 mgl-1, but total leaf area was maximum in ZnSO4 500 mgl-1. The total number of branches were found to be highest when grafts were prepared by dipping scion in IAA 500 mgl-1 treatment. Hence, it can be concluded that the use of Zinc Sulphate alone or in combination with Benzyl Amino Purine can be used for production of healthy and vigorous epicotyl grafts of mango cv. „Kesar‟ with high success rate.
  • ThesisItemOpen Access
    Effect of PGR on Growth and Quality of Madhunashini - (Gymnema sylvestre R.Br.)
    (forest Product and Utilization Dept., ACHF, NAU, Navsari, 2015-05) Chavda, J.R.; Desai, B.S.
    The present investigation entitled “Effect of PGR on Growth and Quality of Madhunashini (Gymnema sylvestre R.Br.)” was conducted at Model Nursery on Medicinal and Aromatic Plants, Navsari Agricultural University, Navsari, AES Zone-III (South Gujarat Heavy Rainfall Zone) during the month of July 2014 to December 2014 Influence of two auxins i.e IAA and IBA, either alone (500 ppm, 1000 ppm and 1500 ppm) or in combination (250 ppm IBA + 250 ppm IAA; 500 ppm IBA + 500 ppm IAA and 750 ppm IBA + 750 ppm IAA) were investigated for enhancing rooting success and growth of G. sylvestre cuttings. The experiment was laid out in CRD. Overall, there were ten treatments with three repetitions and each repetition consisted of thirty cuttings. The planting medium comprised of Red earth soil, FYM and Vermicompost in the ratio of 2:1:1 in 7‟ x 9‟ (15 x 20 cms) sized perforated polythene bags. Among the various concentrations of auxins i.e IBA, IAA alone or in combinations, treatment T5 [IAA-1000 ppm] took minimum days required for sprouting (19.67). The same treatment also showed better plant height and shoot length at 30, 60, 90 and 120 DAP with values of (8.67 cm, 47.83 cm, 111.07 cm and 117.91 cm) and (5.72 cm, 45.00 cm, 102.80 cm and 110.61 cm), respectively; whereas, treatment T4 [IAA-500 ppm] was found superior with respect to larger leaf area (24.09 cm2) and main root girth (7.69 mm) in comparison to the other treatments applied. Maximum number of branches / plant and number of leaves/ branch at 30, 60, 90 and 120 DAP was recorded in treatment T7 [IBA 250 ppm + IAA 250 ppm] with values of (0.50, 1.36, 2.27 and 3.67) and (2.67, 12.67, 30.27 and 38.87), respectively. Lengthiest main root was obtained in treatment T8 [IBA 500 ppm + IAA 500 ppm] with value of (25.69 cm). Cuttings without any auxin treatment (Treatment T10) produced lowest or minimum values for all parameters under study. Finally, it can be concluded that out of all the combinations of IAA and IBA applied either individually or in combination, 1000 ppm IAA i.e Treatment T5 has better influence on plant growth and it was at par with other treatments T4, T7 and T8 found best for rooting and leaves character. Hence, IAA-1000 ppm can be used for large scale propagation of G. sylvestre through cutting.