Open Access

ARTICLE

Interaction genotype x environment and analysis of stability in amaranth genotypes (Amaranthus spp.)

García-Pereyra J¹, CGS Valdés-Lozano², G Alejandre-Iturbide³, I Villanueva Fierro³, OG Alvarado Gómez⁴

1 Profesor Investigador. Instituto Tecnológico del Valle de Guadiana, Durango. Apartado Postal 393. Durango, Dgo, México.
2 Profesor Investigador. División de Estudios de Posgrado, Facultad de Agronomía de la Universidad Autónoma de Nuevo León. Marín, N. L., e-mail: cigsvalloz@hotmail.com
3 Profesor Investigador. Instituto Politécnico Nacional CIIDIR-Unidad Durango, e-mail: ghiturbide@hotmail.com; ifierro62@yahoo.com
4 Profesor investigador de la Facultad de Agronomía de la Universidad Autónoma de Nuevo León, e-mail: omar-alvarado@prodigy.net.mx

* Corresponding Author:Address Correspondence to: Jesús García Pereyra, e-mail:

Phyton-International Journal of Experimental Botany 2011, 80(all), 167-173. https://doi.org/10.32604/phyton.2011.80.167

Abstract

Five genotypes of amaranth were evaluated: four of Amaranthus hypochondriacus L. (collect 153-5-3, 653, 655 and Criollo Tlaxcala) and one of A. cruentus L. genotype 33. Studies were conducted in the cycle of spring-summer (PV) 2000 in Marín, N. L., and PV 2001 and PV 2002 in El Valle del Guadiana, Dgo. A completely randomized design with two repetitions was used, with factorial arrangement using split-plots, divided in space and time. The study population densities (DP) were 125000; 62500; 41666; 32500 and 18666 plants/ha. They analyzed (1) the stability of the genotypes exposed to different environments following Eberhart & Russell (1966), and (2) the grouping of the materials by their yield of grain (RG) and dry forage (FS) by the method of Francis & Kannenberg (1978). Study of interaction G x A indicated that the evaluated materials tended to behave differently in the various localities and evaluated population densities. For RG, genotypes 153-5-3 and 653 were superior to the rest of the genotypes with 30.5 and 29.3 g/plant to a DP of 18666 plants/ha. In yield of FS, genotypes A. cruentus 33 and 153-5-3 were superior to the other genotypes with 150 and 98 g/plant, respectively, to a DP of 18666 plants/ha at the two study sites.

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Keywords

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