Study of grafted tomato (SolanumlycopersicumL.) under hydroponics and polyhouse conditions
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Date
2023-10-16
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Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu
Abstract
Tomato grafting is a well-established horticultural technique for improving quantity and quality of fruits. The present research work is entitled “Study of grafted tomato (SolanumlycopersicumL.) under hydroponics and polyhouse conditions” are carried out with the objectives: to study the growth and development of successful tomato grafts and the yield and quality traits of grafted tomato under polyhouse and hydroponics conditions. The experiment was done with five rootstocks (viz., PKM-1 and Brinjal Hybrid Long, Pusa Ruby, Solanumtorvum and Pusa Purple Long) and two scions namely Heemsohna and ArkaSamrat along with non-grafted ArkaRakshak as a control. Rootstocks and scions were grafted through cleft grafting. Twelve days after grafting, the successful graft unions were transplanted into hydroponics (NFT system) and Polyhouse (Pot) conditions.Various observations were taken as morpho-physiological, growth, yield, biochemical and nutritional parameters at different days of intervals for evaluation. Eleven treatments, including control with three replications, were used. The recorded data was analyzed by a three-factorial-completely randomized design.
The results showed that among all treatments ArkaSamrat grafted on PKM-1 observed as the best in survival percentage of grafted seedlings (88.52 %), peduncle length (18.51 cm), chlorophyll stability index (86.32 %), crop growth rate (2.37 gplant−1 day−1), relative growth rate (0.038 g g−1 day−1), pericarp thickness (17.30 mm), biological yield (8.11 kg plant-1), lycopene content (3.24 mg/100g DW) and total sugar content (2.33 g/100g FW) under polyhouse (pot) condition. In hydroponics growing conditions, Heemsohna grafted on Pusa Ruby showed the superiority in survival % of grafted seedlings (90.70 %), water use efficiency (16.01 g L-1), relative water content (75.00 %), harvest index (0.55), no.of fruits per plant (91.73), equatorial diameter (33.96), pericarp thickness (11.60 mm), marketable yield (6.41 kg plant-1), biological yield (11.79 kg plant-1) and total dietary fibre content (2.36 g/100g FW). Thus, this study concluded that Heemsohna and ArkaSamrat as a scion performed as the best compared to non-grafted (ArkaRakshak) plants under hydroponics and polyhouse growing conditions.
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Sowndarya, B. 2023. Study of grafted tomato (Solanum lycopersicum L.) under hydroponics and polyhouse conditions, M.Sc. Thesis, SKUAST-Jammu, India.