Evaluación de productividad de dos variedades de mani (Arachis hypogaea) con diferentes densidades de siembra, en la parroquia San Jose de Guayusa.

Abstract

The study consisted on evaluating the growth and productivity of two peanuts variables (Arachis hypogaea), using different planting densities in San José de Guayusa parish. An Ax B factorial arrangement design was used, where factor A was the peanut varieties Muru Inchi and INIAP-382 Caramelo; while factor B was the planting densities 166,667, 100,000 and 62,500 plants/ha, forming a total of 6 treatments. The soil was cleaned and pH corrected with agricultural lime. The seeds were disinfected with Vitavax and two seeds were sown per hole a depth three centimeters; weed and pest control and fertilization was carried out after 15 and 30 days. The following variables were analyzed: germination percentage, days to flowering, plant height, pods per plant, weight of 100 grains and yield in kilograms per hectare, by means an analysis of variance and Tukey's test. Finally, an economic analysis was made using the benefit/cost ratio. Treatments T3 and T5 had the highest germination percentages 98.58 and 100 %, respectively. Treatments T2 and T3 had the highest number of pods per plant with 39 and 42 pods, respectively. Treatment T4 had the highest yield with 8057.77 kg/ha and T5 had the best benefit/cost ratio with a value of 2.25. It was concluded that the Muru Inchi variety was the best adapted to the study area, the INIAP 382-Caramelo variety in a distribution of 166,667 plants/ha had the highest yield with 8057.77 kg/ha, and INIAP 382- Caramelo variety with a distribution of 100,000 plants/ha had the best benefit/cost ratio with 2.25. It is recommended to implement the variety INIAP 382-Caramel with a density 100,000 plants/ha.