The aim was to evaluate yield of forage, grain and biomass and fibre content of eight hybrids of maize (Rio-Grande, Arrayan, Genex 778, Narro 2010, Advance 2203, DAS 2358, P4082W and HT9150W) during two sowing seasons (spring/summer) for two consecutive years at La Laguna in Torreon, Mexico. Once the grain progression of the kernel milk line was ⅓, green forage yield (GFY), dry matter (DM), neutral detergent fiber (NDF) and acid detergent fiber (ADF) were determined. When the corncobs were fully mature, grain yield (GY) and biomass production (TBP) were determined. Weather conditions were recorded during the experiment. The results indicated that maximum temperature was higher and rainfall lower in the summer sowing and second year. Spring sowing had significantly higher yields of GFY, DM, GY and TBP compared to summer sowing. The first year of study showed significantly higher yields regarding GFY, GY and TBP, but FDN, FDA, DM content compared to the second year. The best hybrid for GFY and DM was Rio-Grande; for FDN and FDA was Advance 2203; for GY was HT9150W and finally for TBP was Arrayan. Regardless of the hybrid used and the sowing season, production of maize depended on external factors such as maximum temperature and rainfall; therefore, producers need to consider sowing in spring to avoid the negative effect of high temperatures on plant development.
Biological and Natural Sciencesv. 2, n. 4, 2022 All content in this magazine is licensed under a Creative Commons Attribution License. Attribution-Non-Commercial-Non-Derivatives 4.0 International (CC BY-NC-ND 4.0).
El objetivo del presente estudio fue determinar la calidad nutricional del cultivo de nogal pecanero mediante análisis de suelo y foliares en el norte de Coahuila. Los muestreos se hicieron de junio a septiembre de 2017 en siete huertas de nogal, tres huertas con manejo orgánico y cuatro con manejo convencional. Los muestreos de suelo se hicieron en 31 sitios, en cada uno se tomaron muestras a tres profundidades: 00-30, 30-60, 60-90 cm, cada una se colocó en bolsas plásticas etiquetadas. Para el muestreo foliar, se tomaron muestras al azar en 25 árboles en cada huerta, se colectaron 100 foliolos ubicadas en la parte media del brote del año, todos los foliolos se colocaron en bolsas de papel etiquetadas. Todas las muestras se enviaron al laboratorio para determinar las propiedades del suelo y contenido nutricional de los macros y microelementos presentes. Los resultados indican que los suelos de la Región Norte son altamente salinos, muy altos en Contenidos de Carbonatos totales (68%), Capacidad de Intercambio Catiónico (27.5 meq/100 gr), pH fuertemente alcalino (8.10-8.97), deficientes en N, P, Fe y Zn. En relación a los elementos en el follaje, se encontró que la mayoría se encuentra dentro de los Rangos de Suficiencia Nutricional reportados para dos regiones con condiciones edáficas similares a la Región Norte de Coahuila. Lo anterior posiblemente por las aplicaciones de nutrientes minerales durante el ciclo vegetativo de este frutal.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.