Evaluación de dos sustratos para la producción de campanas de irlanda (Molucella laevis), en invernadero.

Abstract

The objective of this research work was to evaluate two substrates to produce the bells of Ireland (Molucella laevis) in greenhouses. It was carried out in the greenhouse of the Horticulture Department of the Escuela Superior Politécnica de Chimborazo. For this research, Ireland bell plants and two substrates, pomina and rice husk were used. A randomized complete block design with two treatments and three replications. An analysis of variance (ADEVA) and functional analysis using the Least Significant Difference Test (LSD) at 5% was used. Ten plants were randomly selected within the net plot for each treatment. The following parameters were evaluated: percentage of apprehension 12 days after transplanting, plant height from the base to the terminal bud, stem diameter, number of days to flowering, number of days from transplanting until 50% of the plants had open flowers, number of bells per stem, stem length, number of stems/ha, and finally the economic analysis with the benefit/cost ratio. The best results were pomina with a percentage of apprehension of 90.43%, plant height 38.98 cm, stem diameter 7.92 mm, days to flowering 52 days, number of bells 46.55, stem length 32.71 cm, number of stems/ha 1450218 stems and benefit/cost ratio of 1.93 dollars, with profitability of 93..47%. It is concluded that the pomina substrate presents optimal conditions for the crops of Ireland bells in greenhouses due to its physical characteristics. It is recommended to use the pomina substrate to obtain a higher yield of Molucella laevis.