ULTIVARIATE ANALYSIS OF CHILLI (Capsicum spp.) GENOTYPES BASED ON YIELD AND YIELD CONTRIBUTING TRAITS

Abstract

The present research work was conducted to study the multivariate analysis of chilli during the period from November 2015 to April 2016 in rabi season in the experimental field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka. In this experiment fifteen chilli genotypes were used as experimental materials. The experiment was laid out in randomized complete block design with three replications. Mean performance, variability, correlation matrix, path analysis and genetic diversity analysis on different yield and yield attributes of chilli genotypes was estimated and significant variation was observed for different chilli genotypes. The highest days to 1st flowering (75.33) was found in the genotype G10 (SRC10) and the lowest days (58.33) was found from the genotype of G2 (Bogra Zhal Morich). The maximum number of fruits/plant (55.22) was found in the genotype G7 (SRC07), while the minimum number of fruits/plant (20.67) was recorded from the genotype of G15 (Dark Green Papper). The highest yield/plant (178.73 g) was observed in the genotype G2 (Bogra Zhal Morich), while the lowest yield/plant (32.70 g) was found from the genotype G6 (SRC04). Phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all the yield contributing traits and yield. In correlation study, highly significant positive association was recorded for fruit weight per plot of chilli genotypes with number of branches per plant, fruit length, single fruit weight and fruit weight per plant. Path analysis revealed that number of branches per plant, days to 50% fruiting, single fruit weight and fruit weight per plant had positive direct effect on fruit weight per plot. Diversity analysis revealed that cluster I had the maximum (8) chilli genotypes followed by cluster III and II which had 4 genotypes and 3 genotypes respectively. Inter cluster distance was maximum (11.862) between clusters I and II. Considering group distance and other agronomic performance Bogra Zhal Morich, Bora Special Morich, SRC06, SRC07, SR09 and SRC10 genotypes may be suggested for future hybridization program.