Articles
METHODOLOGICAL BASIS AND ADVANCES FOR ORNAMENTAL PEPPER BREEDING PROGRAM IN BRAZIL
Article number
1087_39
Pages
309 – 314
Language
English
Abstract
The Federal University of Paraíba (UFPB) has been developing in the last two decades a breeding program for ornamental peppers.
The goals are to evaluate and select breeding lines, to promote the hybridization among the selected lines and to distribute those genotypes among small farmers of Brazilian states.
This pepper program is composed by three stages: 1) germplasm bank maintenance, evaluation of genetic diversity and selection of superior genotypes as potted plant; 2) mass selection with progenitors selection and 3) hybridization and evaluation of the single, triple and double hybrids and segregating populations.
Parallel to the development of new cultivars by mass selection, intra- and interspecific hybrids were developed.
The germplasm bank contains 500 accessions, 290 hybrids and
1100 lineages in advanced generations.
Using mass selection and selection in advanced generations (F5) it was possible to select new commercial lines.
Three new genotypes were created by mutation breeding: a dwarf, a variegated and a purple one.
We also succeeded to obtain, by hybridization, plants with larger flowers and selected lines with increased shelf life as potted plant (72 days). The natural landraces and segregated populations showed variability to ethylene sensitivity.
After applying ethylene, lines resistant to leaf and fruit abscission were selected.
The goals are to evaluate and select breeding lines, to promote the hybridization among the selected lines and to distribute those genotypes among small farmers of Brazilian states.
This pepper program is composed by three stages: 1) germplasm bank maintenance, evaluation of genetic diversity and selection of superior genotypes as potted plant; 2) mass selection with progenitors selection and 3) hybridization and evaluation of the single, triple and double hybrids and segregating populations.
Parallel to the development of new cultivars by mass selection, intra- and interspecific hybrids were developed.
The germplasm bank contains 500 accessions, 290 hybrids and
1100 lineages in advanced generations.
Using mass selection and selection in advanced generations (F5) it was possible to select new commercial lines.
Three new genotypes were created by mutation breeding: a dwarf, a variegated and a purple one.
We also succeeded to obtain, by hybridization, plants with larger flowers and selected lines with increased shelf life as potted plant (72 days). The natural landraces and segregated populations showed variability to ethylene sensitivity.
After applying ethylene, lines resistant to leaf and fruit abscission were selected.
Authors
E.R. Rêgo, M.M. Rêgo, F.L. Finger
Keywords
Capsicum spp., mass selection, hybridization, new cultivars
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