Results 61 to 70 of about 14,925 (213)

Binding of small interfering RNA molecules is crucial for RNA interference suppressor activity of rice hoja blanca virus NS3 in plants [PDF]

open access: yes, 2009
The NS3 protein of rice hoja blanca tenuivirus represents a viral suppressor of RNAi that sequesters small interfering (si)RNAs in vitro. To determine whether this siRNA binding property is the critical determinant for the suppressor activity of NS3, an ...
Goldbach, R.W.   +5 more
core   +2 more sources

Estimating costs of ecological restoration across degradation scenarios in South Brazilian grasslands

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Grassland ecosystems are among the most threatened worldwide, and the Campos Sulinos—a region of subtropical grasslands in southern Brazil—experiences degradation driven by multiple factors. This study provides initial cost estimates for different restoration approaches, offering guidance for technical and budgetary planning ...
Thais Michel   +2 more
wiley   +1 more source

Azospirillum brasilense Inoculation in a Maize–Urochloa–Rice Cropping System Promotes Soil Chemical and Biological Changes and Increases Productivity

open access: yesCrops
Large quantities of cover crop residues in the soil, combined, or not, with the inoculation of seeds with diazotrophic bacteria, can increase organic matter (OM) and protect soil microorganisms, such as arbuscular mycorrhizal fungi (AMF) and dark septate
Philippe Solano Toledo Silva   +6 more
doaj   +1 more source

Acúmulo de forragem e valor nutritivo do híbrido de Urochloa 'BRS RB331 Ipyporã' sob pastejo intermitente [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2016
Resumo: O objetivo deste trabalho foi avaliar o acúmulo de forragem e o valor nutritivo do híbrido de Urochloa 'BRS RB331 Ipyporã' (Urochloa brizantha x Urochloa ruziziensis) submetido à pastejo intermitente.
Joilson Roda Echeverria   +5 more
doaj   +2 more sources

Limited contribution by non‐volant small mammals to regeneration in ironstone rocky outcrops

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Animal‐mediated seed dispersal contributes substantially to natural regeneration in degraded areas. However, the role of seed dispersal by non‐volant small mammals (NVSM), mainly marsupials and rodents, in contributing to regeneration remains underexplored, especially in mountaintop, open‐canopy ecosystems.
Maria Fernanda Regiolli Godoi   +3 more
wiley   +1 more source

Absorção de nutrientes e alterações químicas em Latossolos cultivados com plantas de cobertura em rotação com soja e milho. [PDF]

open access: yes, 2014
Os efeitos promovidos pelas plantas de cobertura nos atributos químicos do solo são bastante variáveis, dependendo de fatores como espécie utilizada, manejo dado à biomassa, época de plantio e corte das plantas, tempo de permanência dos resíduos no solo,
Alves, Marlene Cristina   +4 more
core   +4 more sources

Water deficit tolerance in genotypes of Urochloa spp.: Water deficit in Urochloa spp.

open access: yesRevista de Ciências Agrárias, 2021
It is estimated that the world’s population will increase considerably in the coming years. Thus, there is a need to maximize the production of animal protein, of which the pasture production system is the most economical way. However, abiotic factors influence animal production, with water deficit being the factor that most limits the development of ...
EDUARDO MOREIRA BARRADAS DE SOUZA   +7 more
openaire   +1 more source

Intercropping of soybean cultivars with Urochloa [PDF]

open access: yesPesquisa Agropecuária Tropical, 2014
The integrated crop-livestock system is a key strategy for both grain and livestock production. The cultivation of grass species in between two soybean cropping seasons has been an important component of this system, in Brazil. Thus, this study aimed to evaluate the yield of glyphosate-resistant soybean cultivars intercropped with Urochloa species ...
Franchini, Julio Cezar   +3 more
openaire   +4 more sources

Body Development, Growth Performance, Ingestive Behavior, and Physiological Responses of Nelore and Crossbred Calves

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.
The objective of this study was to evaluate body development, growth performance, ingestive behavior, and physiological responses of Nelore and crossbred calves during the cow‐calf phase. Thirty beef calves were divided into four groups according to their genotype: Nelore (NE; eight animals), Nelore × Senepol (NS; eight animals), Nelore × Montana (NM ...
Lidianny S. Amorim   +9 more
wiley   +1 more source

Silage quality of sorghum and Urochloa brizantha cultivars monocropped or intercropped in different planting systems

open access: yesActa Scientiarum: Animal Sciences, 2017
  Recently it has emerged a technique for silage production of intercropping systems of annual crop with forage through crop-livestock integration, aiming to reduce the deficit forage in the offseason. The study was conducted to evaluate the fermentation
Matheus Gonçalves Ribeiro   +5 more
doaj   +1 more source

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