Efecto de cuatro fases lunares y tres tipos de injerto en la producción de plantas de chirimoya (Annona cherimola Mill) en vivero, en el cantón Patate, provincia de Tungurahua.

Abstract

The present investigation was carried out in the "El Rosal" nursery of the Canton Patate, in the Province of Tungurahua, the effect of four lunar phases and three types of grafts on the production of cherimoya plants was evaluated. The research lasted 150 days of field work. It is of an experimental type and the adaptation study was carried out since it encourages the variables to evaluate the percentage of graft taking, days to the sprouting of the first leaves, height and diameter of the graft at 30, 60 and 90 days from grafting. with the influence of the lunar phases and the cost-benefit analysis. A bifactorial DBCA experimental design was acquired in a split plot arrangement, with 12 treatments, 3 replications and 36 experimental units, corresponding to lunar phases: waxing moon (F1), full moon (F2), waning moon (F3) and new moon ( F4), with three types of graft: terminal spike type (G1), English graft (G2) and bud type (G3). Treatments with the type of terminal spike graft executed in full moon showed a higher percentage of grafting, fewer days from grafting to the appearance of the first leaves, greater diameter and height in relation to the type of bud graft and the other phases. moles. In the economic analysis of the terminal spike graft treatments in the crescent moon phase and full moon, a profit margin of 1.83 dollars appeared with a profitability of 83%. Thus, reaching the conclusion from the economic and agronomic point of view that the best graft and lunar phase to propagate custard apple seedlings in the nursery is the terminal spike graft in the crescent and full moon phases, it is recommended to apply grafts in moon filled using the terminal spike graft.