Abstract

HERNANDEZ-PEREZ, Mirna et al. Análisis conglomerado de 15 cruzas de chile para variables fenológicas y de rendimiento. Agron. Mesoam [online]. 2011, vol.22, n.1, pp.45-50. ISSN 2215-3608.

Cluster analysis for phenological and yield variables in 15 crosses of pepper. The objective of this work was to determine the genotypic or phenotypics differences among 15 single crosses of hot pepper utilizing the cluster analysis. The parents of these crosses were six lines of pepper, three of them were jalapeño type (4, 6 y 118), one was Hungarian yellow wax type (8), one was a broad type (16) and one was mulatto (type 130). Crosses were conducted in a greenhouse at the Universidad Autónoma Agraria Antonio Narro (UAAAN), Saltillo, Coahuila, México. The field assessment was conducted at the Experimental Fie ld Las Huastecas of the National Institute for Forest, Agricultural and Animal Research (INIFAP), at Villa Cuauhtémoc, Tamaulipas, in the autumn-winter cycle of 2008. The phenological variables evaluated were days to flowering and days to first harvest. Yield variables evaluated were the number of fruits per plant, fruit average weight, and yield (t/ha). There was a positive relationship between days at the first harvest and days at flowering, and a negative relationship between fruits per plant and fruit average weight. The main component was days to first harvest. The cluster analysis indicated three groups, the first one constituted by crosses 4x6, 4x8, 4x16, 4x130, 118x130, 8x118, 4x118, 6x118, 6x16, 6x130, 8x16, 8x130 y 16x118, the second by the 16x130 cross, and the third by the cross 6x8. This grouping may be a consequence of both the origin of the parents and the yield obtained.

Keywords : Capsicum annuum L; cluster analysis; phenological traits; yield components.

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