Evaluación de tres tiempos de pinzado en la formación de plantas de rosas (Rosa sp), para exportación bajo cubierta en la Granja Experimental Querochaca

Abstract

The rose crop (Rosa sp.) is one of the main flower producers cut in Ecuador, and its production depends largely on techniques of specialized handling such as clamping, which is used to encourage generation of shoots and, consequently, increase production. This research set out to evaluate the impact of three different moments of pinched in the development of rose plants. Three treatments were implemented: clamped at 5 weeks of culture (soft pinch in basals), at 8 weeks of cultivation (chickpea point) and after 12 weeks of cultivation (with the formation full of flowers). In relation to the development of the plant, the treatment of clamping at 12 weeks proved to be the most effective, achieving a height of 83 centimeters, a stem thickness of 1 centimeter, 7 degrees Brix and 2.4 basal with 4.8 arms per basal. The evaluation of the flower production index confirmed these findings: clamping at 12 weeks achieved the highest production rate high (0.81), followed by clamping at 5 weeks (0.71) and, finally, clamped at 8 weeks (0.64). From the economic point of view, the third treatment turned out to be the most profitable, generating the greatest income due to its high percentage of basals. In contrast, the second treatment generated the lower income, since the expected number of baselines was not reached.