Discovery of genomic regions associated with grain yield and agronomic traits in Bi-parental populations of maize (Zea mays. L) under optimum and low nitrogen conditions

Noel Ndlovu Vijay Chaikam Berhanu Tadesse Ertiro Biswanath Das Yoseph Beyene Charles Spillane Prasanna Boddupalli Manje Gowda (2023, [Artículo])

Grain Yield Low Soil Nitrogen CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GRAIN NITROGEN SOIL CHEMICOPHYSICAL PROPERTIES MAIZE QUANTITATIVE TRAIT LOCI

Silage maize as a potent candidate for sustainable animal husbandry development—perspectives and strategies for genetic enhancement

Yogesh Vikal Manje Gowda (2023, [Artículo])

Brown Mid-Rib Genomic Selection CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA BIOMASS SILAGE DIGESTIBILITY GENOME-WIDE ASSOCIATION STUDIES MARKER-ASSISTED SELECTION MAIZE

El riego suplementario en el cultivo de hule en el trópico húmedo

Juan Manuel Angeles HELENE EMMI KARIN UNLAND WEISS CARLOS ARMANDO DE LOS SANTOS GARCIA (2015, [Artículo])

Los periodos de exceso de agua donde el drenaje es requerido para evacuar estos excedentes y los periodos de baja precipitación donde el riego es demandado; constituyen las principales limitantes para la producción agrícola en las zonas tropicales. Un periodo de escasez de agua provoca la disminución de rendimientos de los cultivos, en cantidad y/o calidad y, en algunas condiciones, pone en riesgo toda una cosecha. La posibilidad de incrementar el potencial de los cultivos del trópico húmedo de México requiere, entre otras cosas, de la implementación de un sistema de riego durante la época de escasez de agua o aún, dentro del mismo periodo de lluvias; por su corto periodo de utilización estos sistemas de riego deberán ser de bajo costo y con una alta flexibilidad en el servicio de riego. Dada la importancia que tiene el hule en Veracruz, se seleccionó un predio de 10 hectáreas en Las Choapas y se instaló un sistema de riego presurizado.

Riego suplementario Hule Zona tropical INGENIERÍA Y TECNOLOGÍA

Soil moisture content and maize grain yield under conventional and conservation agriculture practices - results of short term field tests in liselo, Namibia

Christian Thierfelder (2023, [Artículo])

This article focuses on the results from trials developed to monitor the short-term effects of conventionally tilled systems versus CA on soil quality and crop productivity under conditions of the major cropping systems in central, north-central and north-eastern regions of Namibia. Conventional tillage (CT), Minimum tillage (MT), Minimum tillage, mulch (MT-M), Minimum tillage, rotation (MT-R) and Minimum tillage, mulch and rotation (MT-MR) were the primary treatments tested. Significant differences (p≤0.000) among the treatments were observed in the 0-60 cm soil profiles where MT-M plots had the highest soil moisture content (39.8 mm, Standard Error of Mean 0.2815) over the study period. A significant difference (p=0.0206) in grain yield was observed in the second season with CT plots yielding the highest grain yield (3852.3 kg ha-1, standard error of mean 240.35). Results suggest that CA has the potential to increase water conservation and contribute to reduction of the risk of crop failure. Climate change driven degradation under conventional tillage necessitate alternative sustainable tillage methods. Conservation tillage methods and conservation agricultural practices that minimize soil disturbance while maintaining soil cover need to be adopted more locally as viable alternatives to conventional tillage.

Grain Yield Soil Moisture Content CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CONSERVATION AGRICULTURE CONVENTIONAL TILLAGE GRAIN YIELDS SOIL WATER CONTENT MAIZE

Implementing the nature's contributions framework: A case study based on farm typologies in small-scale agroecosystems from the Mexico highlands

Laura Alicia Rodríguez-Bustos natalia palacios rojas (2023, [Artículo])

Small-Scale Agriculture MasAgro CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MAIZE POLICIES AGROECOSYSTEMS SMALL SCALE FARMING

Application of ammonium to a N limited arable soil enriches a succession of bacteria typically found in the rhizosphere

Yendi Navarro-Noya Marco Luna_Guido Nele Verhulst Bram Govaerts Luc Dendooven (2022, [Artículo])

Crop residue management and tillage are known to affect the soil bacterial community, but when and which bacterial groups are enriched by application of ammonium in soil under different agricultural practices from a semi-arid ecosystem is still poorly understood. Soil was sampled from a long-term agronomic experiment with conventional tilled beds and crop residue retention (CT treatment), permanent beds with crop residue burned (PBB treatment) or retained (PBC) left unfertilized or fertilized with 300 kg urea-N ha-1 and cultivated with wheat (Triticum durum L.)/maize (Zea mays L.) rotation. Soil samples, fertilized or unfertilized, were amended or not (control) with a solution of (NH4)2SO4 (300 kg N ha-1) and were incubated aerobically at 25 ± 2 °C for 56 days, while CO2 emission, mineral N and the bacterial community were monitored. Application of NH4+ significantly increased the C mineralization independent of tillage-residue management or N fertilizer. Oxidation of NH4+ and NO2- was faster in the fertilized soil than in the unfertilized soil. The relative abundance of Nitrosovibrio, the sole ammonium oxidizer detected, was higher in the fertilized than in the unfertilized soil; and similarly, that of Nitrospira, the sole nitrite oxidizer. Application of NH4+ enriched Pseudomonas, Flavisolibacter, Enterobacter and Pseudoxanthomonas in the first week and Rheinheimera, Acinetobacter and Achromobacter between day 7 and 28. The application of ammonium to a soil cultivated with wheat and maize enriched a sequence of bacterial genera characterized as rhizospheric and/or endophytic independent of the application of urea, retention or burning of the crop residue, or tillage.

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA AMMONIUM CROP RESIDUES WHEAT MAIZE TILLAGE SOIL

Breeding for native genetic resistance to FAW in Africa-adapted early- and intermediate-maturing tropical maize germplasm

Yoseph Beyene Anani Bruce Manje Gowda Andrew Chavangi Prasanna Boddupalli (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA BREEDING GENETIC RESISTANCE MAIZE GERMPLASM HYBRIDS

Product profile development and prioritization: Important considerations

Yoseph Beyene (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MAIZE PRODUCTS BREEDING PROGRAMMES MARKET SEGMENTATION TECHNOLOGY GERMPLASM

Use of DH lines in maize breeding programs: CIMMYT experience

Yoseph Beyene (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MAIZE BREEDING PROGRAMMES HYBRIDS MARKER-ASSISTED SELECTION GRAIN YIELDS

Diseases of maize and phenotyping

Suresh L.M. (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA DISEASE RESISTANCE MAIZE PHENOTYPING GERMPLASM