The behavior of a runner bean assortment for pods (Phaseolus coccineus L.) in polyethylene tunnels, in a crop established by direct sowing

Abstract

The paper is focused on the study of agroproductive behavior of a runner bean for pods assortment, in polyethylene tunnel conditions. The trial was conducted in the experimental polygon of the Vegetable Growing discipline, belonging to the Faculty of Horticulture from Iasi. The culture was established in 2014, by direct sowing, in nests, two plants in nest, being established three different densities through the experimental protocol: 20, 25 and 33 thousand nests/ha. The research sought to determine the total yield at four indeterminate cultivars of runner bean (Lady Di, Desiree, Polestar and White Apollo), the control variant being represented by the Desiree cultivar, considered classic in the home country (UK), established at a density of 25 thousands nests/ha. Within the bifactorial experience, the highest total production was obtained by the Polestar cultivar, sown at the distance of 50 cm between nests per row (density of 20 thousands nests/ha).