Multi-Environmental evaluation of chilli pepper genotypes for horticultural traits
Loading...
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Punjab Agricultural University, Ludhiana
Abstract
Forty three chilli genotypes including one check Punjab Sindhuri were evaluated for yield and quality attributes to determine their stability and adaptability under three different environments (November transplanted 2016, February transplanted 2017 and April transplanted 2017) at Punjab Agriculture University, Ludhiana. The data on growth, yield, quality characters and environmental variables were analyzed using Eberhart and Russell’s stability model and GGE Biplot analysis. The mean square (MS) due to genotypes was significant for most of the traits studied except primary number of branches. The MS due to genotype × environment interaction was also found significant for all the traits studied. The genotype S 343 was identified as promising for fruit yield plant-1, plant height and powder yield plant-1 in all the three environments followed by PG 417 and PL 412 while on the basis of regression, the genotype PAU 114 found adaptable across the environments for fruit yield and fruit weight. It was observed that the genotype FL 201 had the longest fruit, more fruit width and thicker pericarp over all the environments. The genotype AC 101 was best performer for capsaicin content in red and green fruits across the three environments followed by check genotype Punjab Sindhuri and PG 417. However, adaptability and stability for capsaicin in red fruits and capsaicin in oleoresin was observed in the genotypes SL 473 and IS 261 respectively, while for the dry matter content the genotype SU 478 and KC 304 found stable for all the environments. It was concluded from the study that among the environments, November (E1) planting was best for selecting the superior genotypes for growth, yield and its related parameters whereas, February (E2) planted crop was suitable for quality traits. It was observed that fruit yield had significant and positive correlations with number of fruits plant-1, fruit weight, powder yield, plant spread, days to first picking and plant height at phenotypic level. Strong association of these traits revealed that selection based on these traits would ultimately improve the fruit yield. Environmental influence was very less on expression of characters as it was evident by narrow gap between genotypic and phenotypic coefficients of variation. Path coefficient analysis revealed that plant height, days to first picking, fruits plant-1, fruit weight, fruit width and powder yield exhibited strong positive phenotypic direct effect on fruit yield while days to first picking, fruit length, pericarp thickness and powder yield had positive genotypic direct effect on fruit yield. Hence, it would be rewarding to lay stress on these characters in selection programmes for increasing yield. The promising genotypes found in the study such as S 343, PL 412, PG 417, PAU 114, AC 101, IS 261, SL 473 and check Punjab Sindhuri could have the potential of being commercially exploited at the farmers field especially for early and late season.
Description
Keywords
null