Antimicrobial activity of Rosmarinus officinalis extract on Magnaporthe oryzae.

The aim of this research was to evaluate the antimicrobial activity of Rosmarinus officinalis extract on the germination and apresorium formation of Magnaporthe oryzae and its effect in suppressing rice blast severity, in greenhouse conditions

Estudo da herança da resistência a brusone em duas cultivares de arroz (Oryza sativa).

O objetivo do presente trabalho foi de identificar o número de alelos envolvidos na expressão da resistência qualitativa à brusone nas folhas nas cultivares Cica-8 e Metica-1.Conpeex 2010

Quantificação das mudanças hormonais promovidas por produtos químicos e microorganismos em arroz (Oryza sativa L.).

utilização de microorganismos em arroz com dupla ação, promoção do crescimento e proteção contra doenças vem sendo extensivamente estudada. Objetivou-se quantificar as mudanças hormonais promovidas por produtos químicos comerciais, duas bactérias e um fungo na cultura do arroz, isolados e em combinação um com o outro

Microorganisms growth promoters as affecting biomass production and nutrients uptake in upland rice plants.

The objective was to determine the effect of different methods of applying microorganisms, previously identified as growth inducers, on the production of biomass dry matter and nutrient content of upland rice plants.Editors: Andreas Carstensen, Kristian Holst Laursen, Jan Kofod Schjorring

Mixes of cover crops and Trichoderma asperellum for enhancing soybean crop yield and sustainability.

Cover crops during the off-season and multifunctional microorganisms represent strategic technologies with potential to enhance the sustainability of soybean production. This study aimed to investigate the effects of cover crop mixes and the application of multifunctional microorganisms on the economic analysis, gas exchange, yield components and grain yield of soybean plants. The experimental design followed a randomized block pattern, in a 6 x 2 factorial arrangement, with four replications. The treatments consisted of six cover crop combinations [fallow (control); millet (Pennisetum glaucum) with crotalarias (Crotalaria juncea, C. spectabilis and C. ochroleuca); millet and pigeon pea (Cajanus cajanus); millet and Urochloa ruziziensis; millet, U. ruziziensis and pigeon pea; millet and buckwheat (Fagopyrum esculentum)], with or without the application of a Trichoderma asperellum pool. The combination of millet + U. ruziziensis and millet + U. ruziziensis + pigeon pea showed the highest dry matter production and yielded the greatest nutrients content in the straw, which could provide a reduction in fertilization for the following crop. The soybean plants cultivated after millet + U. ruziziensis and millet + U. ruziziensis + pigeon pea demonstrated elevated photosynthetic rates and improved the instantaneous water-use efficiency. The application of multifunctional microorganisms led to a 16 % increase in the photosynthetic rate of the soybean plants. The highest yield was achieved by the soybean plants cultivated in areas with millet + U. ruziziensis and millet + U. ruziziensis + pigeon pea. Moreover, the application of multifunctional microorganisms contributed to increase the pod count per meter, grains per pod, mass of 100 seeds and overall soybean grain yield

Rhizobacteria promoting growth and defense in rice plants against Magnaporthe oryzae.

This study investigated the effect of PGPR in promoting growth of rice roots and suppressing leaf blast (Magnaporthe oryzae)

Both MAT1-1 and MAT 1-2 idiomorphs present in rice blast populations (Magnaporthe oryzae) collected in rice fields in northern Brazil.

This is the first study to detect Magnaporthe oryzae rice isolates carrying the MAT1-1 idiomorph in Brazil. Despite the low frequency of the MAT1-1 idiomorph, the study showed that sexual reproduction is possible in the northern riceproducing regions of Brazil

Padronização do extrato de Ruta graveolens L. e avaliação da sua atividade em Magnaporthe oryzae.

O objetivo deste estudo foi padronizar o extrato vegetal líquido de R. graveolens L. e avaliar seu potencial para o controle da brusone em arroz.Apresentação oral - Pós-graduação

Sc substitution for Mg in MgB2: effects on Tc and Kohn anomaly

Here we report synthesis and characterization of Mg_{1-x}Sc_{x}B_{2} (0.12T_{c}>6 K. We find that the Sc doping moves the chemical potential through the 2D/3D electronic topological transition (ETT) in the sigma band where the ``shape resonance" of interband pairing occurs. In the 3D regime beyond the ETT we observe a hardening of the E_{2g} Raman mode with a significant line-width narrowing due to suppression of the Kohn anomaly over the range 0<q<2k_{F}.Comment: 8 pages, 4 EPS figures, to be published in Phys. Rev.

Manual de biossegurança em instalações com certificado de qualidade em biossegurança na Embrapa Arroz e Feijão.

Foi produzido o presente manual de biossegurança para a orientação nas diversas atividades desenvolvidas nas dependências regidas pelo Certificado de Qualidade em Biossegurança (CQB). Esclarece o significado de termos técnicos úteis empregados e apresenta um conjunto de normas e procedimentos que certamente minimizarão os riscos de trabalho e de uma possível liberação acidental de organismos geneticamente modificados.bitstream/CNPAF/26693/1/doc_216.pd