CELL COMPATIBILITY ANALYSIS OF POMATO BASED ON SEEDLING AGE AND FERTILIZER TREATMENT

Abstract

An experiment was conducted at the experimental field of Horticultural farm of Sher-e-Bangla Agricultural University, Dhaka, during November 2014 to April 2015. Cell compatibility of tomato and potato by making pomato plants was evaluated in six grafting combinations (tomato grafted on potato) and laid out in RCBD design with three replications. Three potato (Solanum tuberosum L.) and two tomato genotypes (Solanum lycopersicum L) were used for grafting in all possible combinations. Two treatments, viz. two seedling age of tomato and three fertilizer doses were used to identify best compatible grafting. The compatibility was evaluated through the observation of yield and sixteen yield contributing characters under different treatments. Cleft grafting was used to assess the magnitude of different fertilizers doses effect on different pomato genotype for high yield of tomato and tuber. The analysis of cell compatibility revealed that the pomato G6 (BARI tomato-11 grafted on Asterix) showed the best performance for total tuber yield (13.8 ton/ha) followed by pomato G3 (BARI tomato-2 grafted on Asterix) which showed the total tuber yield 9.27 ton/ha. Both the pomato genotypes for giving high tuber yield were grafted with 25 days old seedling of tomato and the applied fertilizer dose was 390 Kg/ha of urea, 280 Kg/ha of TSP, 312 Kg/ha of MoP, 140 Kg/ha of gypsum and 13000 Kg/ha of cowdung. The pomato G3 also showed the best performance for total tomato yield (41.65 ton/ha) when grafted with same age of seedling of tomato and with the same fertilizer doses as mentioned for total tuber yield. Hence, pomato G3 (BARI tomato-2 grafted on Asterix) could be recommended to the farmers for grafting and cultivation for total yield including both potato and tomato when grafted with young tomato seedling of 25 days old and with the fertilizer dose of 390 Kg/ha of urea, 280 Kg/ha of TSP, 312 Kg/ha of MoP, 140 Kg/ha of gypsum and 13000 Kg/ha of cowdung.