Brady, Kevin

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Yield and quality performance of eleven open pollinated and three hybrid tomato cultivars grown under organic management in Lajas Puerto Rico
(2011) Brady, Kevin; Brunner, Bryan; College of Agricultural Sciences; Martínez Garrastazú, Sonia; Morales-Payán, J. Pablo; Department of Crops and Agro-Environmental Sciences; Mazak, Cathy
Organic variety trials were conducted in 2010 and 2011 to evaluate 14 tomato (Solanum lycopersicum L.) cultivars at Lajas, Puerto Rico. Significant differences in marketable fruit yield were observed among cultivars in both years. In 2010, yields ranged from 72.1 t/ha for ‘Roma’ to 8.6 t/ha for ‘Marion’, with an overall mean of 36.4 t/ha. ‘Roma’, ‘Neptune’ (56.8 t/ha), and ‘BHN 444’ (56.2 t/ha) had the highest yields in 2010. In 2011, yields ranged from 46.1 t/ha for ‘Flora Dade’ to 8.7 t/ha for ‘Roma’, with an overall mean of 27.8 t/ha. ‘Flora Dade’, ‘BHN 444’ (43.5 t/ha), and ‘Celebrity’ (38.3 t/ha) had the highest yields in 2011. Open pollinated cultivars performed with more variability between the two seasons than the hybrid controls. This study indicates that tomato can be grown successfully in the tropics under an organic management system using either open pollinated cultivars or hybrids.