Agronomic and morphological evaluation of six genotypes and two hybrids of poblano peppers in open fields in Saltillo, Coahuila, Mexico

Abstract

ABSTRACT

Objective: To evaluate the agronomic and morphological characteristics of six genotypes of poblano pepper, compared with a commercial hybrid and an experimental hybrid, in order to select genotypes with the potential to continue with a genetic improvement program.

Design/methodology/approach: The design of treatments and the statistical model was complete randomized blocks, with eight treatments (six genotypes F₂, Carranza F₁ and F402 F₁), analyzed with an ANVA at p≤0.05, Tukey's test of means p≤0.05 and an analysis of Pearson correlation.

Results: In yield per plant, number of fruits per plant (NFP), average weight per fruit, plant height, stem thickness and leaf length and width (AH), no statistical differences were found. Regarding the width of the fruit base (WFB), the hybrids stand out, in the average width of the fruit the genotypes G4, G6 and the hybrids, in fruit length G2, G5 and G6 stand out, depth of the calyx G1, G3 and G4, peduncle length G4 was different from the others and mesocarp thickness (MT) genotypes G2, G4, G6 and hybrids stood out. The performance depends on NFP (0.66), MT (0.46), WFB (0.38) according to the Pear-son correlation coefficients.

Limitations on study/implications:

Findings/conclusions: The genotypes G2, G4 and G6 evaluated stand out for their agronomic potential compared to the hybrids tested, therefore, a genetic potential is inferred that could be useful to continue with the genetic improvement program.