Ciencias Agropecuarias
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Item Caracterización morfológica, física y fenologíca de cuatro variedades de amaranto (Amaranthus sp.) para las condiciones meteorológicas del cantón Cevallos(2017) Jiménez Sánchez, Enma Victoria; Aldas Jarrín, Juan CarlosThe research was done at the Querochaca Experimental Teaching Farm, Agricultural Sciences Faculty, located in Cevallos canton, Tungurahua province, with the purpose of establishing the morphological characteristics of four amaranth varieties (Amaranthus cruentus V1 , Amaranthus caudatus V2, Amaranthus hypochondriacus V3 and Amaranthus quitensis V4); To more than, evaluate growth and development and performance. The treatments were four. We used the completely randomized block design with four treatments and three replicates. The analysis of variance (ANOVA) and significance tests of Tukey at 5% were performed. The economic analysis was performed following the methodology of benefit/cost ratio (CBR). In relation at morphological characteristics, Amaranthus cruentus (V1) presented stems of chromatic color with yellow, leaves of achromatic color with black, inflorescences of chromatic color with yellow and seeds of color chromatic with yellow. The shape of the leaf was oval and of the inflorescence in spike. Dense or compact inflorescences. It also presented lateral branch with short branches along the stem, without lodging. With regard to variety, Amaranthus caudatus V2, I present chromatic color stalk with yellow, achromatic leaves with black. Inflorescences of chromatic color with yellow, seed color chromatic with yellow, the form of the leaf was oval and of the inflorescence in spike. Inflorescences with few branches at the base of the stem, without intercourse. The variety, Amaranthus hypochondriacusV3, featured achromatic stem color with black orange, achromatic orange leaves. Inflorescences of achromatic color with black blue violet, achromatic color seed with black blue violet; the shape of the leaf was oval and the shape of the inflorescence in spike. Inflorescences with few branches at the base of the stem, without intercourse. Finally, the variety, Amaranthus quitensisV4); I present achromatic color stem with black blue violet, achromatic leaves with black blue violet. Inflorescences of achromatic color with black blue violet, achromatic color seed with black blue violet, the shape of the leaf was oval and the shape of the inflorescence in spike. Inflorescences without branching at the base of the stem, without intercourse. With respect to plant growth and development, it was established that Amaranthus cruentus (V1) reported the best results, both in plant growth and development, and in flowering, with a higher leaf length (12,43 cm), as leaf width (5,80 cm). The inflorescences were of longer length (58,01 cm) and better diameter (9,00 cm), consequently the best yields were obtained (5,30 kg/plot). From the economic analysis it is concluded that the Amaranthus cruentus variety (V1), reached the highest cost benefit ratio of 0,39, where the net benefits obtained were 0,39 times what was invested.