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| Registros recuperados: 22 | |
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| CORRÊA, J. C.; ROSSETTI, A. G.. |
| Foram realizadas comparações entre o Método das Pesagens e o Método Gravimétrico Padrão utilizados para determinar a umidade dos solo. Para determinar a umidade foram tiradas dez amostras e feitas três dimensões nas profundidades de 0cm a 20cm em quatro tipos de solo. Os dados foram comparados através do coeficiente de correlação (r), encontrando-se r=0,9607 para Podzolico Vermelho Amarelo sob capoeira; r= 0,8988 para Podzolico Vermelho Amarelo sob mata sem uso; r= 0,8967 para Latossolo Amarelo sob mata sem uso; e r=0,9503 para Latossolo Amarelo sob mata com uso, todos positivos e significativos, indicando equivalência entre os dois métodos para esses solos. Recomenda-se o Método das Pesagens por ser mais simples, rápido e exigirem instrumentos mais simples. |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Determinação; Brasil; Amazonas.; Método; Umidade.; Solo; Analytical methods; Humidity; Soil.. |
| Ano: 1984 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665139 |
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| Silva,Aline Scheer da; Danielowski,Rodrigo; Braga,Eugenia Jacira Bolacel; Deuner,Sidnei; Magalhães Junior,Ariano Martins de; Peters,Jose Antonio. |
| Techniques used to induce mutations, such as ionizing radiation, are an effective tool in increasing genetic variability in breeding programs of species of economic interest. This study aimed to evaluate the effect of different doses of Co60 gamma radiation on previously soaked seeds on the emergence and early growth of seedlings of two rice cultivars. To do this, seeds (25% moisture) of BRS Querência and BRS Fronteira were irradiated with zero (control), 50, 100, 150 and 200 Gy, and then sown in trays containing soil and kept in a greenhouse. The results showed that gamma radiation affected seedling development, where the highest dose tested (200 Gy) significantly reduced the emergence and the index of emergence speed. Growth parameters were reduced... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L; Humidity; Genetic variability. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600008 |
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| Pérez Estrada, Víctor Manuel. |
| El trabajo consistió en dos fases, la primera fue en invernadero y la segunda en campo. En invernadero se evaluó la influencia de dos regímenes de humedad del suelo [80 a 100 y 40 a 60 % de la capacidad máxima de retención de agua del sustrato (CMRAS)] y la inoculación con tres hongos ectomicorrízicos comestibles, Hebeloma spp., Laccaria spp. y Clavulina aff. cinerea, así como sus interacciones, en el desarrollo de dos especies de pinos: Pinus patula Schl. et Cham y Pinus hartwegii Lindl. En las plantas de Pinus patula inoculadas con Hebeloma spp., el régimen de humedad de 80 a 100 % de la CMRAS produjo mayor peso seco total (46 %) y altura (25 %) en comparación con el régimen de humedad de 40 a 60 % de la CMRAS. En Pinus patula inoculado con... |
| Tipo: Tesis |
Palavras-chave: Ectomicorrízicos; Hongos; Humedad; Ditrógeno; Diversidad; Doctorado; Hidrociencias; Ectomycorrhizal; Fungi; Humidity; Nitrogen and diversity. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1424 |
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| Rode-Margono, E.J.; Nekaris, K.A.-I.. |
| Predation pressure, food availability, and activity may be affected by level of moonlight and climatic conditions. While many nocturnal mammals reduce activity at high lunar illumination to avoid predators (lunarphobia), most visually-oriented nocturnal primates and birds increase activity in bright nights (lunarphilia) to improve foraging efficiency. Similarly, weather conditions may influence activity level and foraging ability. We examined the response of Javan slow lorises (Nycticebus javanicus Geoffroy, 1812) to moonlight and temperature. We radio-tracked 12 animals in West Java, Indonesia, over 1.5 years, resulting in over 600 hours direct observations. We collected behavioural and environmental data including lunar illumination, number of human... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Activity; Environmental factors; Humidity; Lunarphobia; Moon; Predation; Temperature; 42.84. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/499291 |
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| Dias,Roberto Júnio Pedroso; Bessa,Elisabeth Cristina de Almeida; D'Ávila,Sthefane. |
| The aim of this study was to verify the influence of substrate humidity on desiccation resistance of Subulina octona, continuously exposed, for 48 h, to the temperature of 35 °C. Forty individuals conditioned in 2 plastic boxes, one box containing black earth humidified with 40 ml water and the other one containing dry black earth were used. The retraction of cephalopodal mass inside the shell and the number of dead individuals was evaluated. Snails from dry and humid substrate boxes showed cephalopodal mass retraction of 9.9 cm±2.88 and 2.78 cm±3.17, respectively, after 12 h of exposure; 8.55 cm±1.3 and 6.33 cm±2.91, after 24 h; 11.07 cm±4.19 and 7.27 cm±2.7, after 36 h, 9.12 cm±2.15 and 6.47 cm±2.11, after 48 h. Every individual of dry substrate box died... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Land snail; Desiccation; Cephalopodal mass retraction; Substrate; Humidity. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000100016 |
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| Bosco,Leosane Cristina; Bergamaschi,Homero; Cardoso,Loana Silveira; Paula,Viviane Aires de; Marodin,Gilmar Arduino Bettio; Brauner,Pedro Correa. |
| ABSTRACT The use of hail net coverage on plants is an effective measure to mitigate damage caused by hailstorms. In southern Brazil, areas with apple orchards under hail net coverage have increased in recent years. However, little is known about the possible effects on the microclimate and, consequently, on plant growth, crop yield and fruit quality. The hypothesis of this study was that hail net promotes microclimate and yield changes in apple orchards. The objective was to characterize the microclimate and production of apple trees cultivated under hail nets and to consequently generate numeric parameters that can be used in the management of apple orchards and in crop modeling. The study was conducted in commercial orchards growing under hail net and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica Borkh; Solar radiation; Air temperature; Humidity; Wind. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100181 |
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| Fraga, R.; Carrillo, M.; Pedroso, H.. |
| Se evaluaron las pérdidas que Lasioderma serricorne (F.) y Araecerus fasciculatus (De G.), ocasionaron en el cacao almacenado durante tres meses bajo condiciones controladas de temperatura (28 ± 2 ºC) y humedad relativa (73 %). Se determinó el consumo de materia seca de cada estadio biológico activo y la pérdida de peso, los granos dañados y la producción de polvo, ocasionada por cada especie durante su desarrollo. Los estadios larval y adulto de L. sericorne fueron los que mayor cantidad de cacao ingirieron, alcanzando valores de 6,76 y 0,81 mg, respectivamente. A los 90 días de almacenamiento, la especie L. serricorne ocasionó 20,3 % de pérdida en peso, 31,5 % de granos dañados y 14,8 % de producción de polvo. |
| Tipo: Journal Contribution |
Palavras-chave: Weight; Storage; Temperature; Cocoa beans; Weight losses; Spoilage; Humidity; Pests. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/5011 |
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| Juizo, Claudio Gumane Francisco; Loiola, Pedro Lício; Zen, Linéia Roberta; Marchesan, Raquel; Carvalho, Douglas Edson; Bila, Narcísio Fernando; Egas, Andrade Fernando; Rocha, Márcio Pereira da; Klitzke, Ricardo Jorge. |
| This study aimed to evaluate wood physical properties of Pinus patula, aged 38, from a forest stand located in Machipanda, central region of Mozambique. Determination of physical properties, such as basic specific gravity, shrinkage, and moisture content of wood in the pith-bark followed the recommendations of the Panamerican Standard - COPANT. Results showed statistically significant differences at significance level of 5%, in the radial direction for the shrinkage coefficient in the pith-bark. Radial and tangential shrinkage values were 6.06 and 8.80% in juvenile wood and 6.18 and 8.65% in adult wood, respectively, with anisotropy coefficient of 1.43 for juvenile wood and 2.44 for adult wood. Pinus patula growing in Inhamacari forest shows stable wood... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Retratibility; Humidity; Specific gravity; Wood quality Recursos Florestais Engenharia Florestal; Tecnologia da madeira; Retratibilidade; Umidade; Massa específica; Qualidade da madeira. |
| Ano: 2015 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/771 |
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| Registros recuperados: 22 | |
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