Crecimiento y comportamiento fisiológico del café (Coffea arabica L.) variedad Castillo con tres niveles de sombra en la Estación Experimental Zapotepamba de la Universidad Nacional de Loja.

Coffee is very emblematic worldwide, which has boomed in recent years and, in Ecuador it constitutes a high income of foreign currency to the country through exports. In the study, the effect of three levels of shade on the growth and physiological behavior of the coffee crop at the Zapotepamba Experimental Station of the Universidad Nacional de Loja was evaluated. The sample was established in a completely randomized block design (DCBA), the levels of shade that were evaluated were 35%, 50% and 65%, with evaluations every 20 days for six months. The effect of the shade on the vegetative development and the productive potential of coffee is influenced by microclimatic, physiological and growth factors; statistically significant differences were observed between the treatments, in the variables number of branches, length of internodes and leaf surface, being the best treatments those with 65%, 50% respectively. Within the physiological behavior, it was determined that shade is a determining factor for the leaf surface of coffee plants. The treatments with the highest percentage of shade presented higher values with statistically significant differences, stomatal density, stomatal index, stomatal dimensions and water status, the highest values of these indicators were the treatments with less solar radiation with statistically significant differences. In conclusion, it can be determined that shade is directly related to growth and physiological behavior in coffee cultivation. Keywords: Rubiaceae, radiation interception, morphology, physiology.

• Hovedforfatter: Poma Macanchí., Valeria Alejandra (author)
• Format: bachelorThesis
• Sprog: spa
• Udgivet: 2022
• Fag: <RUBIACEAE><INTERCEPCIÓN DE LA RADIACIÓN> <MORFOLOGÍA> <FISIOLOGÍA>
• Online adgang: https://dspace.unl.edu.ec/jspui/handle/123456789/24890