In situ evaluation of the genetic variability of wild chilli (Capsicum spp.) in the Frailesca region of Chiapas state, Mexico

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R. A. Alonso

Abstract

A research study was carried out with the aim to
evaluate in situ the genetic variability of wild chilli from the
Frailesca region of Chiapas state. The experimental sample
was made up of 10 % of the communities and producers from
each municipality. The sampling unit was the site with plants.
In situ evaluation was based on quantitative and qualitative
characteristics contained in the term Capsicum. Variability was
measured through Margalef, Simpson and Sorensen´s
diversity indexes. The highest discriminant quantitative
characters were: flower number per axil, filament length,
diameter, fruit length and weight, placenta length, 1000-seed
number and weight. As a result of the discriminant analysis,
three groups were formed: group 1, where Capsicum annuum prevails,
with six accessions having characteristics from C. frutescens;
group 2, integrated by accessions from Capsicum frutescens,
and group 3, with C. annuum cultivated. There was an evident
existence of high levels of variability in the chilli samples
evaluated, which formed three groups with characteristics
identifying the species: Capsicum frutescens L., Capsicum
annuum L. and 12 cultivated accessions from Capsicum
annuum. The highest variability was recorded in La Concordia
and Villaflores municipalities, where there are conditions
for preserving in situ variability.

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How to Cite
Alonso, R. A. (2012). In situ evaluation of the genetic variability of wild chilli (Capsicum spp.) in the Frailesca region of Chiapas state, Mexico. Cultivos Tropicales, 29(2), 49–55. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/255
Section
Original Article

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