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Now showing items 31-40 of 207
Os processos de ovulação e reinício da meiose oocitária são mediados pela interação entre angiotensina ii, progesterona e prostaglandinas
(Universidade Federal de Santa Maria, 2011-02-28)
Angiotensin II (AngII), progesterone (P4) and prostaglandins (PGs) are essential for ovulation
of a fertile oocyte. This study sought to understand how these factors are linked together during the ovulatory process. To ...
Atividade da adenosina desaminase, concentração de nucleotideos e nucleosideo de adenina em ratos Infectados com Trypanosoma evansi
(Universidade Federal de Santa Maria, 2011-12-09)
The purinergic system is known to be an important signaling pathway in different tissues.
Among the components of this system have adenosine, a modulator of central nervous,
circulatory and immune systems. The concentration ...
Qualidade da água e sua relação com o uso da terra em duas pequenas bacias hidrográficas
(Universidade Federal de Santa Maria, 2011-02-25)
The creation of rural settlements in areas of agrarian reform has been allowing greater social inclusion for families who were previously deprived of land ownership and subsequent income source. However, unorganized splitting ...
Perdas de água e variações na temperatura de um argissolo vermelho em função de diferentes quantidades de resíduos vegetais na superfície e espaçamentos entre linhas do feijoeiro
(Universidade Federal de Santa Maria, 2011-02-25)
Irrigation is an alternative to minimize fluctuations in grain production and yield due to water deficiency. However, to prevent water losses and to improve the
efficiency of this use, the irrigation management has to be ...
Himenópteros parasitoides associados a cultivos orgânico e convencional de tabaco (nicotiana tabacum l.) em Santa Cruz do Sul, RS, Brasil
(Universidade Federal de Santa Maria, 2011-02-28)
The fauna of parasitic Hymenoptera is not well known in Brazil, despite its great diversity and biological, ecological and economical importance. In the cultivation of tobacco (Nicotiana tabacum L.) there is the need to ...
Injúria foliar em diferentes estágios fenológicos de plantas de girassol e seu efeito na produção
(Universidade Federal de Santa Maria, 2011-02-28)
The sustainability of the crop production, i.e. the ability to remain itself in the market, protecting the environment and have good financial returns is often threatened by risk factors. Among the risk factors in agriculture, ...
Determinação do potencial fisiológico de sementes de arroz baseado na integridade das membranas celulares
(Universidade Federal de Santa Maria, 2011-02-24)
Appropriate procedures for analyze the quality of seed is of fundamental importance, but are still incomplete in the quality control programs. The work was aims to standardize the methodology of the electrical conductivity ...
Crescimento, desenvolvimento e produtividade de cana-deaçúcar em cultivo de cana-planta e cana-soca de um ano Santa Maria, RS
(Universidade Federal de Santa Maria, 2011-02-17)
The objectives of this Dissertation were to estimate the base temperature of leaf appearance, determine the phyllochron, leaf area, tillering, leaves number on stem elongation and determine the crop yield of three clones ...
Distribuição espaço-temporal e flutuação populacional de lagartas desfolhadoras da soja
(Universidade Federal de Santa Maria, 2011-02-17)
This work aimed to analyze the spatial-temporal distribution and population fluctuation of soybean defoliating caterpillars, during the development cycle of the crop. Thus, this will be presented in two chapters. Chapter ...
Análise populacional de melolonthidae (coleoptera) da região do planalto do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2011-02-17)
This work aimed to study the occurrence of soil-dwelling melolontid species called white grubs (Coleoptera: Melolonthidae) and its geographic distribution in Planalto , Rio Grande do Sul State. Chapter I, describes the ...