SHADE EFFECTS IN PINTO SALTILLO COMMON BEAN CULTIVAR GROWN UNDER TWO CROPPING SYSTEMS IN DURANGO, MÉXICO

INTRODUCTION: In Durango, forest plantations with woody species reached 1,866 ha in 2013 (SEMARNAT, 2013). Forest plantations have been recommended under irrigation and agricultural lands for the intensive production of wood, pulp and firewood, as well as for Christmas trees cultivation. In 2015, intensive production of forest biomass was supported using different pine species such as Pinus greggii, P. cembroides and P. engelmannii. High yield potential has been also detected in the same production areas for agricultural crops such as common bean (Phaseolus vulgaris), which is considered as a productive and profitable option by farmers in order to obtain food and economic benefits during pine timber production. Decrements have been observed in grains per pod, grains per plant and harvest index, as percentage of shade increased (Hadi et al., 2006). The objective of this study was to evaluate shade effects on yield of Pinto Saltillo common bean cultivar grown under two cropping systems in Durango, México.