A verification trail was conducted during the season 97/1998 at four farmers’ fields located in the coastal plain of Abyan Delta (15–30 m. a. s. l.) are: Al-Sama, Hosson Shadad, Al-Mussimier and Bashahara. It aimed to study the effect of spacing and varieties on tomato yield (Lycopersicon esculentum L.). The trial included two spacing and three varieties. The spacing were: (1) 120 cm. x 60 cm. planting on one side of the row, which gives 13888 plants per hectar (old recommendation) (2) 140 cm. x 40 cm. planting on both sides of the row, which gives 35714 plants per hectar (new recommendation). The treatment of varieties included: Chico-III, San marzano and Rio grand. The treatments were distributed in split plot design in four replicates where varieties occupied the main plots and the spacing allocated to the subplots. Results show that plants density 35714 plant/ha (new recommend-ation) significantly increased total and marketable yield as compared to the plant density of 13888 plant/ha (old recommendation). But it has no significant effect on the average fruit weight and the percentage of infected fruits by American worm or blossom end rot. San marzano variety was surpassed in total and marketable yield compared to other tested varieties and it showed the least percentage of fruit infected by American worm, whereas Rio grand produced big fruits.
Download Search :PDF