Assessment of Seme Exotic Inbred and Hybrid Genotypes of Tomato for Yield and its Component Traits

摘要

Nine inbreed and 8 hybrid genotypes of tomato were collected from AVRDC to evaluate the growth and yield attributing traits comparing with two local varieties viz., Raton and Binatomato-5 at Bangladesh condition. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications and found significant variation in all the characters. Among all, inbreed genotype CLN-2777A produced the highest yield (75.24 t ha-1), which was closely followed by hybrid genotype WVCT-8 (70.21t ha-1), inbreed genotype CLN-2413 (68.631 ha-1) and two local varieties Raton (67.921 ha-') and Binatomato-5 (66.871 ha-'). The inbreed genotype CLN-2777B and CLN-2777F produced the lowest yield 17.90-24.081 ha-1, respectively. Besides the yield, inbreed genotype CLN-2777A also produced the highest number of leaves per plant (78.20), number of primary branches per plant (9.10), harvesting duration (48.10 days), fruit weight per plant (2.25 kg) with 53.90% reproductive efficiency and the 2nd highest yield producing genotype WVCT-8 also produced the highest number of flowers per cluster (10.40), number of flowers per plant (146.60), number of fruits per cluster (3.70) and days to first harvest (95.90). Comparing yield and yield contributing characteristics, exotic hybrid genotypes performed better than exotic inbreed but the local varieties performed constantly better. The present results indicated that the exotic inbreed genotype CLN-2777A and hybrid genotype WVCT-8 may be selected as high yielding tomato variety in Bangladesh.