|
|
|
| Registros recuperados: 11 | |
|
|
| Monteiro Neto,João Luiz Lopes; Araújo,Wellington Farias; Oliveira Vilarinho,Lucianne Braga; de Oliveira Nunes,Taline Katlen; da Silva,Edgley Soares; da Silva Maia,Sonicley; Albuquerque,José de Anchieta Alves de; Alves Chagas,Edvan; da Silva Siqueira,Raphael Henrique; Abanto-Rodriguez,Carlos. |
| Abstract The type of environment and substrates quality in seedlings production are essential for the production of productive plants under field conditions. In order to determine the best environment and substrate for seedlings production of two tomato cultivars (IPA 06 and Santamélia), two experiments, completely randomized and arranged in subdivided plots with five replicates, were conducted under the environmental conditions of Boa Vista, Roraima, Brazil. Treatments consisted of the association among five environments (A1 - greenhouse, A2 - Chromatinet ® 35% red, A3 - Chromatinet ® 50% red, A4 - Chromatinet ® 35% Silver and A5 - Chromatinet ® 50% Silver) and four substrates S1 - OrganoAmazon®; S2 -OrganoAmazon® + PuroHumus®; S3 - OrganoAmazon® +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Horticulture; Photoconverter shading nets; Plant propagation; Plant establishment; Protected environment; Transplanting. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200270 |
| |
|
| |
|
|
| Milani,Marília; Lopes,Sidinei José; Bellé,Rogério Antônio; Backes,Fernanda Alice Antonello Londero. |
| ABSTRACT: The objective of this study was to characterize the height (H) and leaf number (LN) of China pinks, grown in seven substrates, as a function of degree days, using the logistic growth model. H and LN were measured from 56 plants per substrate, for 392 plants in total. Plants that were grown on substrates formed of 50% soil with 50% rice husk ash (50% S + 50% RH) and 80% rice husk ash with 20% worm castings (80% RH + 20% W) had the longest vegetative growth period (74d), corresponding to 1317.9ºCd. The logistic growth model, adjusted for H, showed differences in the estimation of maximum expected height (α) between the substrates, with values between 10.47cm for 50% S + 50% RH and 35.75cm for Mecplant(r). When α was estimated as LN, variation was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dianthus chinensis L; Growth model; Protected environment; Parameter estimation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101924 |
| |
|
|
| Arrua,Luan L. De C.; Costa,Edilson; Bardiviesso,EstefâNia M.; Nascimento,Daniele M. Do; Binotti,Flavio F. Da S.. |
| ABSTRACT Mangabeira is a native fruit tree from Brazil, which provides a delicious fruit to taste and beneficial to health, whose information about the seedlings production will assist the entire productive chain of this important species. The aim of this research was to evaluate protected environments and substrates compositions in the formation of mangabeira seedlings. For this, two greenhouses with different screens were used, the first covered with aluminized thermo-reflective screen of 50% shading and the second with black screen of 50% shading. Inside the environments, were tested substrates derived from combinations of various proportions of bovine manure (M), soil (S), medium vermiculite (MV), super fine vermiculite (FV) and fine sand (FS). For... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hancornia Speciosa; Protected environment; Climatic factors; Vermiculite; Sand. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000600984 |
| |
|
|
| Lima,Elvis M. de C.; Carvalho,Jacinto de A.; Viol,Miguel A.; Almeida,Rodrigo C. de; Rezende,Fátima C.. |
| ABSTRACT The study aimed to evaluate the “Gália” melons productive characteristics grown in greenhouse under different irrigation levels, and conducted with and without soil cover by plastic mulching. Experiments I (WC) and II (WtC) were conducted simultaneously in a protected environment, using a completely randomized design (CRD), where plants of Gália melons (Hybrid Nectar cv.) received five levels of water depth defined by 50, 75, 100, 125 and 150% of evapo-transpiration (water requirement), with four replications, differing only by utilization (WC) or not (WtC) of plastic mulching. The results showed that the variables productivity, average weight, length and diameter of the fruits were affected by different levels of water replacement in the soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Irrigation management; Protected environment; Productivity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000100075 |
| |
|
|
| Cordeiro Júnior,José J. F.; Cavalcanti,Sávio D. L.; Souza,Rayanne T. de A.; Batista,Pedro H. D.; Guiselini,Cristiane. |
| ABSTRACT Sugarcane has a great economic interest in Brazil, so it needs technologies to increase its yield strength, especially for seedling production. This study aimed to ascertain the influence of shading nets on early growth and development of pre-sprouted sugarcane seedlings. An experiment was conducted in a protected environment, in the Rural Federal University of Pernambuco (UFRPE), in Recife-PE, Brazil. The protected environments were covered with anti-UV low-density polyethylene plastic plus: Solpack® red ultranet net, Solpack® white net, Solpack® freshnet net, and without shade net, and five replications each. The experiment was carried out in a completely randomized design, and multivariate principal component analysis (PCA) was used to verify... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Protected environment; Shade nets; Solar radiation; Saccharum officinarum. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000100010 |
| |
|
|
| Geisenhoff,Luciano O; Pereira,Geraldo M; Lima Junior,Joaquim A. de; Silva,Andre L. Pereira da; Aviz,William L. Carrera de. |
| ABSTRACT Proper irrigation management is important both to enable adequate water supply and to minimize problems with diseases, nutrient leaching and unnecessary water and power wastes. Thus, this study aimed at improving irrigation management in greenhouses. For that reason, we assessed the effect of various water tensions on yield performance of crisphead lettuce, Raider-Plus cv. , grown with mulching. The experiment was conducted in greenhouse at the Federal University of Lavras. Treatments constituted five different soil water tensions, namely 12, 25, 35, 45, and 70 kPa. The results showed that irrigation must be carried out at water soil tension of around 12 kPa to reach satisfying commercial values for both total and commercial yield, 66 and 50 t... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuta sativa; Irrigation management; Protected environment; Soil covering. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100046 |
| |
|
| |
|
| |
|
| |
|
|
| Mello,Rodrigo Machado; Dal'Col Lúcio,Alessandro; Storck,Lindolfo; Lorentz,Leandro Homrich; Carpes,Ricardo Howes; Boligon,Alexandra Augusti. |
| Quality control is the guaranty that experimental error is kept under acceptable levels, and the definition of the proper size and form of experimental plots ensures acurate experimental planning. This paper aims to determine the proper plot size and shape for the culture of the Italian pumpkin in protected environments. Two experiments were set in plastic green house in distinct crop seasons: either Summer-Fall or Winter-Spring season. The experiment comprised eight, 23-m long lines with 20 plants each, and fruit weight was considered the main performance parameter. Estimates of best plots size and shape were obtained by the maximum curvature, variance comparison and Hatheway methods. The plot size and shape varied according to the season and the ideal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Curcubita pepo; Protected environment; Experiment planning; Quality control. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000400017 |
| |
| Registros recuperados: 11 | |
|
|
|
