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Dinâmica do arsênio no sistema solo - água - arroz na América do Sul: distinções fisiológicas entre cultivares e ocorrência em grãos comerciais
(Universidade Federal de Santa Maria, 2016-02-29)
Rice is the main source of inorganic arsenic (Asi), a carcinogenic substance, in the human diet. In this sense, there is great interest in reducing the accumulation of As in rice grains. To achive this, field management / ...
Silício no manejo pré e pós-colheita da podridão parda (monilinia fructicola) no pessegueiro
(Universidade Federal de Santa Maria, 2016-02-24)
Brown rot is the main diseases of peaches, with pre and postharvest losses. Control it is difficult because the fungus infect fruit and remain latent until conditions are favorable to its manifestation. Therefore, to ...
Macroinvertebrados bentônicos em lavoura de arroz irrigado sob efeito de fungicidas e inseticidas
(Universidade Federal de Santa Maria, 2016-02-29)
The irrigated rice crop has economic and social importance for the state of Rio Grande do Sul. It is considered an environment rich in biological diversity, it is home for a range of animal communities, especially ...
Retenção de inseticida e fungicida em sementes de arroz com o uso de polímeros
(Universidade Federal de Santa Maria, 2016-05-04)
The following dissertation has been developed into two chapters: chapter I aimed to evaluate the physiological and sanitary quality of rice seeds treated with fungicide and insecticide coated with polymers, as well as ...
Eficiência nutricional ao fósforo de clones de batata
(Universidade Federal de Santa Maria, 2016-02-26)
The potato plant is highly demanding regarding the presence of phosphorus (P) readily
available in soil solution. To achieve high yields of tubers, large applications of phosphate
fertilizers are made, which consequently ...
Probabilidades de ocorrência de deficiência hídrica nos solos da região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-06-03)
The detailed determination of the probabilities of occurrence of certain levels of water deficit (WD) is important for the farming planning and environmental management in the public and private administration. Such ...
Crescimento, desenvolvimento e potencial de rendimento de soja em função do tipo de crescimento e grupo de maturidade relativa em ambiente subtropical
(Universidade Federal de Santa Maria, 2015-12-21)
The objectives of this thesis were: To estimate the relative maturity group of old and modern soybean cultivars used in Southern Brazil; To quantify the branches contribution in the leaf area index; To characterize the ...
Correlações canônicas entre caracteres fenológicos, morfológicos, produtivos e nutricionais de genótipos de milho
(Universidade Federal de Santa Maria, 2015-12-18)
The aim of this study was to identify through canonical correlation analysis if there is linear dependence among the phenological, morphological, and productive traits with protein-nutritional and energetic-nutritional ...
Proteção do óxido nítrico sobre o estresse oxidativo causado por herbicidas em arroz irrigado
(Universidade Federal de Santa Maria, 2015-07-31)
Although selective, some herbicides cause injury in plants, resulting in uncontrolled production of reactive oxygen species. Nitric oxide (NO) is appointed as a reducer of the effects caused by oxidative stress in plants; ...
Testes de multicolinearidade em variáveis morfológicas e produtivas de tomateiro
(Universidade Federal de Santa Maria, 2016-01-15)
This work presents a comparative study of multicollinearity identification methodologies in multivariate analyzes. Multicollinearity is caused by intense linear relationship between the study variables and can interfere ...