Estudio de la adaptación y rendimiento de 8 variedades de pepinillo (Cucumis sativus L.) bajo invernadero, cantón Riobamba, provincia de Chimborazo.

Abstract

This research proposes: the study of the adaptation and yield of 8 varieties of cucumber (Cucumis sativus L.) under greenhouse, canton Riobamba, province of Chimborazo; the varieties investigated were: T1 (1829), T2 (1810), T3 (1809), T4 (1807), T5 (1805), T6 (1806), T7 (JAGUAR) as a control and T8 (1808). A randomized complete block design with 8 treatments and 3 repetitions was used. Parameters were evaluated such as: temperature and internal relative humidity of the greenhouse, susceptibility to phytopathogens, percentage of emergence, percentage of capture, number of leaves, height, diameter of stem, days to flowering, days to harvest, number of fruits per plant, weight of the fruit, length and equatorial diameter of the fruit, days to the counter and yield per hectare, finally the economic analysis was carried out according to the relation of benefit-cost. It was determined that: the variety that was best adapted to the internal conditions of the greenhouse during the period from January to June, the variety was 1805 (T5) with a yield of 40426.89 kg / ha, an average weight per fruit of 408, 13 grams, 23.33 days at the counter, with 54.87 leaves, height of the plant of 192.3 cm and the best relation of cost benefit of 1.74 dollars equivalent to a profitability of 74.30%. From the agronomic and economic point of view for the production of cucumber under greenhouse in the canton of Riobamba, province of Chimborazo, it is recommended to plant variety 1805, to present the best physiological and morphological characteristics, as well as achieving the best yields and profitability. As well as conducting research on pollination methods, adequate irrigation sheet and fertilization dose.

KEYWORDS: AGRONOMIC ADAPTATION - CUCUMBER VARIETIES - GREENHOUSE CROPS - CUCUMBER