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Interações de cobre e fósforo em acessos de Pfaffia glomerata (Spreng.) Pedersen: efeito no crescimento e rendimento de β-ecdisona
(Universidade Federal de Santa Maria, 2013-03-14)
Pfaffia glomerata (Spregen.) Pedersen stands out as a species of great medical and commercial importance due to its major secondary metabolite β-ecdysone, which content can vary in roots under adverse conditions as nutritional ...
Trichoderma e bradyrhizobium no desenvolvimento e produtividade da soja
(Universidade Federal de Santa Maria, 2018-05-14)
Soy is a very important crop and for success in cultivation, many factors are critical and help increase productivity. One of these factors is the seed treatment, since it aims to ensure the protection of seeds in the soil. ...
Variação espacial e temporal da comunidade fitoplanctônica em uma seção do Reservatório de Passo Real, RS, Brasil
(Universidade Federal de Santa Maria, 2018-03-11)
Phytoplankton is a community of microscopic organisms, of great ecological importance and adapted to several environmental modifications. Ceratium furcoides is a dinoflagellate of the genus Ceratium found in marine habitats ...
Morfofisiologia e exigências térmicas de Cyperus difformis L. (Cyperaceae)
(Universidade Federal de Santa Maria, 2018-03-01)
The species Cyperus difformis (L.) (tiririquinha) is prominent in the South of Brazil as weed in flooded areas, especially in irrigated paddy rice cultivation under a pre-germinated system. However, in recent years, it has ...
Fotoperíodo crítico e filocrono para produção de diferentes cultivares de crisântemo de corte
(Universidade Federal de Santa Maria, 2017-03-06)
Cutting chrysanthemum (Dendranthema grandiflora Tzvelev) is a photoperiod sensitive crop that requires artificial lighting during winter cultivation, around four weeks, leaving the plants in a long day condition to carry ...
Micorrização em gramíneas de pastagem natural sob pastoreio rotativo
(Universidade Federal de Santa Maria, 2017-09-11)
Sourthern Brazil natural grasslands present great diversity of vegetal species, being very important for the cattle rearing and conservation of the natural resources. This diversity is related to the diversity of soil ...
Citogenotoxicidade, fenólicos totais e crescimento de Pfaffia glomerata (Spreng.) Pedersen cultivada sob concentrações de cobre e zinco
(Universidade Federal de Santa Maria, 2018-02-27)
Pfaffia glomerata (Spreng.) Pedersen, a native medicinal species, possesses the ability to accumulate metals, which can alter its production of metabolites and consequently their medicinal capacity. The objective of this ...
Trichoderma e silicato de potássio no desenvolvimento e na redução da ferrugem da folha no trigo
(Universidade Federal de Santa Maria, 2017-08-04)
Leaf rust, causative agent Puccinia triticina, is one of the main diseases of wheat culture, and it may cause losses of up to 63% of whole grains yield. Some control alternatives have been studied in order to control this ...
Uso de vermicomposto na atenuação do efeito do cobre em planta de Avena strigosa Schreb
(Universidade Federal de Santa Maria, 2018-02-20)
The application of copper-based fungicides are frequently realized in order to perform the preventive control of fungal diseases. Nonetheless, the long term application causes a surplus of this heavy metal in soil. Thus, ...
Interações entre ferro e zinco em acessos de Pfaffia glomerata (spreng.) pedersen: parâmetros morfológicos, bioquímicos e fisiológicos
(Universidade Federal de Santa Maria, 2017-02-10)
Despite the natural occurrence of heavy metals in low concentrations in the soil, the increase in these concentrations caused mainly by anthropogenic activities such as the use of fertilizers and pesticides in agriculture, ...