The study of the influence of the planting distance on the early production of certain runner bean cultivars (Phaseolus coccineus L.) for pods, in the environment of the polytunnel

Abstract

The objective of this paper is to evaluate the cultivation possibilities of the runner bean for pods in the polytunnel, in the Romanian conditions and taking into account different planting distances. This factor has a major influence on the production of the runner bean culture, the species being sensitive to light. Research was performed within the Teaching Facility of USAMV (University of Agronomic Sciences and Veterinary Medicine) Iasi in 2014, on a culture of runner bean (Phaseolus coccineus L.), created in the polytunnel by planting the seedlings in nests, with three different densities (20, 25 and 33 thousand nests/ha), using four cultivars from Great Britain (Lady Di, Desiree, Polestar and White Apollo).The obtained results indicate to us the fact that the highest early productions for the culture of runner bean created in the polytunnel by planting the seedling are obtained at lower densities of 20 and 25 thousand nests/ha.

runner bean for pods, planting distances, polytunnel