Results 91 to 100 of about 511,982 (318)

Cultivares, doses de fertilizantes e densidades de semeadura no cultivo de milho safrinha Corn responses to fertilizer rates and sowing densities

Ciência e Agrotecnologia, 2009
Objetivou-se, neste trabalho, avaliar o desempenho de cinco cultivares de milho submetidas a três densidades de semeadura e duas doses de fertilizantes em Lavras, MG. Foram conduzidos quatro experimentos, sendo dois em 2004 e dois em 2005.
José Luiz Andrade Rezende Pereira, Renzo Garcia Von Pinho, Iran Dias Borges, Antonio Marcos Andrade Rezende Pereira, Tiago Geraldo Lima   +4 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Effects of plant pathogens on population dynamics and community composition in grassland ecosystems: two case studies [PDF]

, 2013
Grassland ecosystems comprise a major portion of the earth’s terrestrial surface, ranging from high-input cultivated monocultures or simple species mixtures to relatively unmanaged but dynamic systems.
Jeger, M. J., Shaw, M. W., Shaw, Michael W., Salama, N. K. G., van den Berg, F., van den Bosch, F.   +5 more
core   +1 more source

Performance of Maize Hybrids for Grain Yield Under Different Planting Arrangements

Crops
The aim of this study was to evaluate the agronomic performance of eight maize hybrids under different plant densities for grain yield in the North and Northwest regions of Rio de Janeiro State, Brazil.
Vivane M. L. Gonçalves, Izaias R. da Silva Jr., Renato S. Catarina, Jocarla A. Crevelari, Messias G. Pereira   +4 more
doaj   +1 more source

Produtividade de grãos e componentes do rendimento da aveia preta (Avena strigosa Schreb.) afetados pela densidade e velocidade de semeadura Grain yield and yield components of black oat (Avena strigosa Schreb.) as affected by seeding rate and velocity

Ciência Rural, 2007
Com o objetivo de avaliar a influência da densidade (30, 60 e 90kg ha-1 de sementes viáveis) e da velocidade (3,2; 5,3; 6,9 e 8,2km h-1) de semeadura na produtividade de grãos e componentes do rendimento de aveia preta (Avena strigosa Schreb.), na região
Henrique Debiasi, Jorge Dubal Martins, Evandro Luiz Missio   +2 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Ecology meets plant physiology: herbivore-induced plant responses and their indirect effects on arthropod communities

, 2007
Herbivory by arthropods induces a wealth of changes in the primary and secondary chemistry of plants (Karban and Baldwin 1997, Constabel 1999, Agrawal et al. 1999, Kessler and Baldwin 2002).
Sabelis, M. W., Belliure, B., Sabelis, M.W., Takabayashi, J., Craig, T.P., Janssen, A., Aratchige, N., Ohgushi, T., Aratchige, N.S., Kant, M. R., Kant, M.R., van Wijk, M., Lesna, I., Schuurink, R.C.; id_orcid, Sznajder, B., Price, P.W., Takabayashi, Junji, Schuurink, R. C., Schuurink, R.C., vanWijk, M.   +19 more
core   +1 more source

Uso associado e contribuições relativas de genótipos de aveia e de práticas de manejo à competitividade da cultura com plantas concorrentes Associated use and relative contributions of at genotypes and management practices to crop competitivity against concurrent plants

Planta Daninha, 2009
A associação de práticas de manejo, como níveis populacionais e formas de aplicação de adubo nitrogenado, pode potencializar a habilidade competitiva de uma cultura com plantas concorrentes.
C.E Schaedler, N.G Fleck, D Agostinetto, R.P Rigoli, T Dal magro, S.P Tironi   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Plant reproduction in the alpine landscape : reproductive ecology, genetic diversity and gene flow of the rare monocarpic "Campanula thyrsoides" in the Swiss Alps [PDF]

, 2007
Aims & Objectives The work presented in this thesis forms part of a larger project “How patchy habitat and isolation affect alpine plant life: genetic diversity, gene flow and mating systems”, which includes the PhD studies of Patrick Kuss and the ...
Ægisdóttir, Hafdís Hanna
core   +1 more source