Evaluación del comportamiento agronómico de nuevos cultivares de lechuga (Lactuca sativa L.), en la Parroquia de Izamba

Abstract

This trial was conducted in the sector of Yacupamba in the parish of Izamba, with the objective of evaluating the agronomic performance of new lettuce cultivars (Lactuca sativa. L), using new materials such as Alpina, Nazarinas, Patagonia, Fedra and comparing them with the Coolguard control. During the field trial, a randomized complete block experimental design with five treatments and three replicates was used. The data obtained were analyzed using an ADEVA and Tukey's test at 5%, observing the following results: percentage of bolting, presence of pests and diseases, cabbage weight, cabbage polar diameter, cabbage equatorial diameter and crop yield, showing the following results, the most outstanding being Alpina (M2) for the cabbage weight variable with a mean of 1210. 53 g and for the equatorial diameter with a mean of 15.55 cm in diameter, as well as standing out in the yield variable with a mean of 79.00 Ta/ha. Regarding diseases and pests, all treatments showed some degree of attack by phytopathogenic fungi and common pests, so it was determined that the varieties studied do not have tolerance to attacks either by pests and diseases, the cultivar that presented ideal characteristics for the polar diameter variable was the variety Nazarinas (M3) with an average of 20. 34 cm in diameter, i.e. these treatments showed better agronomic characteristics, so it can be determined that these new materials adapted better in the area where this trial was conducted, while the treatments composed of Patagonia (M1), Fedra (M5) and Coolguard as a control (M4), showed lower values than Alpina (M2) and Nazarinas (M3). Key words: Lettuce, Agronomic characteristics, Materials, Cultivars.