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        Effect of Rootstock Genotypes on the Growth and Yield of Tomatoes (Solanum lycopersicum L.) Grown in a Plastic Greenhouse and Open Field in Cambodia

        Ouch Sreyneth,Thun Vathany,송영주,이응호 한국국제농업개발학회 2023 韓國國際農業開發學會誌 Vol.35 No.4

        In 2006, Cambodian Agriculture Research and Development Institute (CARDI) bred a high-quality tomato ‘Neang Pich’ variety. Since ‘Neang Pich’ is susceptible to Sclerotium rolfsii (S. rolfsii), it is severely affected the production major tomato growing regions. This study was conducted to evaluate the effect of seven S. rolfsii tolerant rootstocks on growth and yield in graft cultivation of ‘Neang Pich’ tomato. ‘Neang Pich’ seedlings were used as scion and non-grafted control. Six eggplant genotypes (‘2017053’, ‘2017062’, ‘17CJVC2’, ‘No. 80’, ‘VI041979A’, ‘VI041996’) and a commercial tomato variety (‘Hulk’) were used as rootstock. The grafted and non-grafted tomatoes were grown in a plastic greenhouse and open field. The survival rate of plants did not differ between plastic greenhouse (80.2%) and open field (79.5%). The top and root fresh weight of plants grown in a plastic greenhouse increased by 77% and 11% compared to the open field and the dry weight increased by 48% and 10%, respectively. The top (309 g) and root (18.9 g) fresh weight, and the top (90.5 g) and root (6.39 g) dry weight depending on rootstock were the highest in plants grafted onto ‘2017062’. The yield of tomatoes in a plastic greenhouse (19.5 MT/ha) was 65% higher than that of open field (11.8 MT/ha). The yield of tomatoes depending on rootstock were the highest in ‘2017062’ (17.8 MT/ha). The effect of cultivation practice and grafting on pH and sugar content (o Brix) of the fruit was non-significant difference (p≤0.05). The scion diameter, top fresh weight, fruit weight and yield (MT/ha) were significant difference (p0.05) in the interaction effect between tomato cultivation practices (plastic greenhouse and open field) and rootstock.

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