CELL COMPATIBILITY ANALYSIS IN POMATO (Solanum tuberosum L. and Solanwn lycopersicum L.)

Abstract

A field experiment was conducted at the experimental field of Sher-e-Bangla Agricultural University, Dhaka, during November 2013 to April 2014. Four potato (Solanurn tuberosum L.) and three tomato genotypes (Solanum lycopersicum L.) were studied in the present study. The objectives of the study were compatibility analysis of tomato and potato by making pomato plants using cleft grafting and to assess the magnitude of genetic divergence in pomato combinations, association among the characters and their contribution to yield. The analysis of variance indicated significantly higher amount of variability among the combinations for all the characters. Considering genetic parameters high genotypic co-efficient of variation (GCV) was observed for, fruit per cluster, fruit per plant, tuber per plant and fruit yield per plant whereas days to first flowering, days to 50% flowering and tuber yield per plant showed low CCV. High heritability with high genetic advance in percent of mean was obsen'ed for number of fruits per cluster, number of fruits per plant, tuber per plant and fruit yield per plant and tuber yield per plant indicating that these traits were under additive gene control and selection for genetic improvement for these traits would be effective. The results obtained, showed that fruit yield per plant had high positive significant relation with plant height, cluster per plant, fruits per cluster. fruits per plant but high negative significant relation with fruit length and fruit diameter. Days to 50% flowering, number of branches per plant and fruit per cluster had high positively direct effect on yield of tomato. Fruit weight and fruit length had high negative direct effect on yield of tomato. So, these were found to be important characters and could be used on improvement for yield. The highest mean total yield per plant was found in P2TI, P4TI, P3TI and in PITI respectively. It means TI (BARI Tomato- I 1) showed the best compatibility with all the local potato varieties except P4 (Pakri Alu(Tcl). So, BAR! Tomato-I I could be recommended to the pomato growers with local potato varieties.