Evaluation of genotype, environment, and genotype-by-environment interaction for capsaicinoids in Capsicum annuum L.
The response, in terms of capsaicinoid content, of chile (Capsicum annuum L.) genotypes to different environments was studied. Double haploidlines, an F1 hybrid, and an open-pollinated cultivar estimated the genotype, environment, and genotype-by-environment interaction effect on the total capsaicinoids and on individual capsaicinoids. Significant differences were observed among the genotypes and among genotype-by-environment interactions over the environments. Among the genotypes in an environment, the within-genotype variances were also significantly different. The double haploid line, HDA 207, had low within-genotype variance for individual and total capsaicinoids, with the exception of the isomer of dihydrocapsaicin. Also for HDA 270, the genotype-by-environment interaction was negligible for individual and total capsaicinoids, Indicating stability across environments.
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- Bosland, P.W., A.L. Bailey & D.J. Cotter, 1994. Growing chiles in New Mexico. Cooperative Extension Service Guide H-230, College of Agriculture and Home Economics, New Mexico State University.Google Scholar
- Bulloch, H.E. & R.E. Neher, 1980. Soil survey of Doña Ana County, New Mexico. U.S. Govt. Printing Office. Washington, D.C.Google Scholar
- Collins, M., L.M. Wasmund & P. W. Bosland, 1995. Improved method for quantifying capsaicinoids in Capsicum using highperformance liquid chromatography. HortScience 30: 137–139.Google Scholar
- Delacy, I.H., M. Cooper & K.E. Basford, 1996. Relations among analytical methods used to study genotype-by-environment interactions and evaluation of their impact on response to selection. p. 51–84. In: M.S. Kang & H.G. Gauch, Jr. (Eds), Genotype-By-Environment Interaction. CRC Press, Inc., Boca Raton, USA.Google Scholar
- DeWitt, D. & P.W. Bosland, 1993. The Pepper Garden. Ten Speed Press, Berkeley, California.Google Scholar
- Fernandez, G.C.J., 1991. Analysis of genotype x environment interaction by stability estimates. HortScience 26: 947–950.Google Scholar
- Harvell, K. & P.W. Bosland, 1997. The environment produces a significant effect on pungency of chiles. HortScience 32: 1292.Google Scholar
- Kang, M.S., 1989. A new SAS program for calculating stabilityvariance parameters. J. Heredity 80: 415.Google Scholar
- Krajewska, A.M. & J.J. Powers, 1988. Sensory properties of naturally occurring capsaicinoids. J Food Sci 53: 902–905.Google Scholar
- Pritts, M. & J. Luby, 1990. Stability indices for horticultural crops. HortScience 25: 740–745.Google Scholar
- SAS Institute Inc., 1996. SAS software release 6.12. SAS Institute Inc. Cary, NC.Google Scholar