Results 41 to 50 of about 1,672 (172)

Interploid hybrids in the ‘brizantha’ complex of Urochloa P. Beauv.: identification, genome size, cytogenetic characterization and perspectives

Acta Scientiarum. Agronomy
Crossing between sexual artificial tetraploids of Urochloa ruziziensis and apomictic polyploids of Urochloa decumbens, and Urochloa brizantha is a breeding strategy.
Isabella Campos Moraes, Welison Andrade Pereira, Pedro Henrique Mendes Carvalho, Fausto Souza Sobrinho, Vânia Helena Techio   +4 more
doaj   +1 more source

Leaf anatomy of Urochloa brizantha and Urochloa ruziziensis (Poaceae) plants subjected to different fertilization management practices

Agronomy Science and Biotechnology, 2022
Brazilian agribusiness is heavily influenced by beef export. Thus, it is important to evaluate the quality and growth rate of forage species used as cattle food. Given that the structural organization of leaf cells and tissues is directly related to forage-plant growth, we aimed to analyze the foliar anatomy of Urochloa brizantha and U.
Ester Marques Magalhães Teixeira, Jaqueline Dias-Pereira, Luís César Dias Drumond, Pedro Ivo Vieira Good God God, Hugo Humberto de Araújo Araújo   +4 more
openaire   +2 more sources

In vitro salinity stress tolerance in Urochloa brizantha cultivars

Colloquium Agrariae, 2021
Urochloa brizantha is the main forage grass to raise cattle in Brazil, but salt stress can reduce yield. Physiological and molecular mechanisms of adaptation to salt stress remain poorly understood in this species. The objective of this work was to evaluate the responses of three cultivars of U. brizantha to in vitro salt stress.
Paula Beatriz Ramos Guimarães, Mayara de Oliveira Vidotto Figueiredo, Tiago Benedito dos Santos, Alessandra Ferreira Ribas   +3 more
openaire   +1 more source

Forage potential of Urochloa genotypes by using leaf anatomy

Ciência Rural, 2019
: The digestibility potential of leaves from forages depends on the amount of nutrition in their tissues, with low lignin deposition in the cell wall, mainly parenchyma and phloem.
Janaína Mauri, Daniele Laís Pereira, Gabrielle Avelar Silva, Lisete Chamma Davide, Vânia Helena Techio, Fausto Souza Sobrinho, Fabricio José Pereira   +6 more
doaj   +1 more source

Does amount of cut vegetal residue on the canopy influence growth and the structural characteristics of marandu palisadegrass?

Bioscience Journal, 2022
The pasture mowing in late winter removes the old forage, improving the pasture structure in spring and summer. However, the residue after mowing can affect tillering, thus limiting forage production and the structural characteristics of pasture.
Gabriella Fernandes Silva, Weisler Borges Fernandes, Gabriel de Oliveira Rocha, Flávia de Oliveira Scarpino van Cleef, Bruno Humberto Rezende Carvalho, Manoel Eduardo Rozalino Santos   +5 more
doaj   +1 more source

Straw interference in the emergence of talquezal seeds from different origins [PDF]

Planta Daninha, 2020
Background: Talquezal (Paspalum virgatum L.) has become one of the main pasture weeds due to its association with the Urochloa brizantha death syndrome, a disease that causes the progressive death of clumps of susceptible grasses in patches, which leads ...
Sidnei R. Marchi, Ricardo F. Marques, Rodrigo M. Souza, Cristina F. Justo, Cibele C. Martins   +4 more
doaj   +1 more source

OSMOCONDITIONING OF Urochloa brizantha SEEDS TO REDUCE PELLETING NEGATIVE EFFECTS [PDF]

BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura, 2017
Objetivou-se neste trabalho verificar a influência de materiais de peletização na qualidade fisiológica de sementes de Urochloa brizantha e avaliar o efeito  do condicionamento osmótico no envigoramento das sementes, visando reduzir possíveis efeitos negativos da peletização.
Lisandro Tomas da Silva Bonome, Renato Mendes Guimarães, João Almir Oliveira, Sara Dousseau   +3 more
openaire   +1 more source

DRY MATTER AND PROTEIN ACCUMULATION AS A FUNCTION OF NITROGEN FERTILIZATION IN Brachiaria brizantha CV. MARANDU (Urochloa brizantha)

Revista Brasileira de Agropecuária Sustentável, 2022
In Brazil, forage is the main source of nutrients for ruminants, but most production systems are extensive and low amounts of inputs are used to improve soil fertility. This study aimed to evaluate the effect of nitrogen doses on dry matter yield and protein content in leaves, stems and shoots of Brachiaria brizantha cv. Marandu.
Mauro Wagner Oliveira, Augusto Lopes Goretti, Rogério de Paula Lana, Thiago Camacho Rodrigues   +3 more
openaire   +1 more source

New Considerations on Meiosis, Affinity and Genomic Constitution in Aneuploids and Interploid Hybrids of Urochloa P. Beauv. (Brachiaria)

Plant Breeding, EarlyView.
ABSTRACT The combination of polyploidy, apomixis and the formation of aneuploid and interploid hybrids makes the genus Urochloa an interesting system for investigating meiotic stability and genome behaviour in grasses. In this study, routine meiotic analysis and genomic in situ hybridization (GISH) were used to (i) evaluate meiosis in three hybrids of ...
Isabella Campos Moraes, Pedro Henrique Mendes Carvalho, Fausto Souza Sobrinho, Vânia Helena Techio   +3 more
wiley   +1 more source

Componentes agronômicos e produtividade do milho em diferentes sistemas de produção

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2016
A crescente competitividade no setor rural exige a substituição do modelo produtivo tradicional por sistemas que possibilitem a maximização do uso do solo.
Durval Nolasco Neves Neto, Antonio Clementino dos Santos, Perlon Maia dos Santos, Aridouglas dos Santos Araujo, Leonardo Bernardes Taverny Oliveira   +4 more
doaj   +1 more source