Articles
ANALYSIS OF DIVERGENCE AND CORRELATION OF QUANTITATIVE TRAITS IN ORNAMENTAL PEPPER (CAPSICUM SPP.)
Article number
1087_52
Pages
389 – 394
Language
English
Abstract
This work aimed to estimate the genetic diversity among accessions of Capsicum spp. and to calculate the relative importance and the correlation among them.
Morphologic characterization of 10 accessions was made using 24 descriptors.
Grouping accessions was done by Tochers method based on the Generalized Mahalanobis Distance.
The lineages were separated in eight groups.
The most explicative variables were fruit set/plant (29.57%), days to flowering (17.78%) and yield (12.62%). The physical fruit traits, in general, were positively correlated among them and with leaf length and width.
They were negatively correlated with total soluble solids, acidity, fruit dry matter content, as with fruit set/plant and days to fructification.
The accessions that belong to different groups can be used in hybridizations aiming to develop new pepper cultivars for consumption and for ornamental purposes.
The knowledge about existing variability can help to develop rational strategies to conserve Capsicum genetic resources.
Morphologic characterization of 10 accessions was made using 24 descriptors.
Grouping accessions was done by Tochers method based on the Generalized Mahalanobis Distance.
The lineages were separated in eight groups.
The most explicative variables were fruit set/plant (29.57%), days to flowering (17.78%) and yield (12.62%). The physical fruit traits, in general, were positively correlated among them and with leaf length and width.
They were negatively correlated with total soluble solids, acidity, fruit dry matter content, as with fruit set/plant and days to fructification.
The accessions that belong to different groups can be used in hybridizations aiming to develop new pepper cultivars for consumption and for ornamental purposes.
The knowledge about existing variability can help to develop rational strategies to conserve Capsicum genetic resources.
Authors
M.M. Rêgo, M.J.L.C. Sapucay, E.R. Rêgo, E.R. Araújo
Keywords
breeding, parents’ selection, indirect selection, chili
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