Consulta: subjectFacets:"Growth analysis"
Registros recuperados: 31
Data/hora: 10/06/2024 07:40:13

Cultivo hidropónico y manejo nutrimental de la producción anual de Antirrhinum majus L. en condiciones de invernadero.
Provedor de dados: 32
Autores: Rojas Velázquez, Angel Natanael.
La información y tecnologías para el cultivo hidropónico de  perrito (Antirrhinum majus L.) en invernadero es limitada y requiere mayor conocimiento e investigación para el adecuado manejo del cultivo. En el presente estudio se utilizó un material de verano (Grupo IV) serie Potomac cv. Rose, para determinar los efectos del potencial osmótico (PO) en la solución nutritiva (-0.036, -0.054, -0.072, -0.090 y  -0.108 MPa) en el contenido de biomasa y calidad comercial, análisis de crecimiento, absorción y extracción nutrimental, durante en cultivos de invierno y verano. En general las diferentes variables evaluadas, biomasa aérea, vida de florero y días a cosecha se vieron afectados por los tratamientos de PO y por las estaciones de crecimiento. La...
Palavras-chave: Análisis de crecimiento; Absorción; Extracción; Hidroponía; Invernaderos; Growth analysis; Absorption; Extraction; Hydroponic; Greenhouse; Doctorado; Fruticultura.
Ano: 2010
URL: http://hdl.handle.net/10521/237

Análisis del crecimiento y calidad de semillas de tres tipos de chile (Capsicum annuum L.).
Provedor de dados: 32
Autores: Ayala Villegas, Misael Jorge.
El chile es una de las hortalizas más importante a nivel mundial. México es de los países con mayor producción y al ser centro de origen y domesticación de la especie Capsicum annuum L. tiene una amplia diversidad de materiales agrupados en tipos. Los estudios referentes al crecimiento y desarrollo de la planta y semilla de chile, son escasos y no son recientes. Aquí, se comparó el crecimiento de la planta de los tipos de árbol, ancho y guajillo y se evaluó la calidad de semillas durante su desarrollo. Se utilizaron semillas provenientes del Programa de Conservación de Germoplasma de Chile del Colegio de Postgraduados. Las plantas crecieron bajo condiciones de invernadero en Texcoco, Edo, de México entre el 25 de marzo y el 12 de noviembre de 2010. El...
Palavras-chave: Capsicum annuum; Análisis de crecimiento; Etapa de desarrollo; Etapa de extracción; Germinación; Growth analysis; Development stage; Extraction stage; Germination; Maestría; Fisiología Vegetal.
Ano: 2012
URL: http://hdl.handle.net/10521/722

Cultivo hidropónico y manejo nutrimental de la producción anual de Antirrhinum majus L. en condiciones de invernadero.
Provedor de dados: 32
Autores: Rojas Velázquez, Angel Natanael.
La información y tecnologías para el cultivo hidropónico de  perrito (Antirrhinum majus L.) en invernadero es limitada y requiere mayor conocimiento e investigación para el adecuado manejo del cultivo. En el presente estudio se utilizó un material de verano (Grupo IV) serie Potomac cv. Rose, para determinar los efectos del potencial osmótico (PO) en la solución nutritiva (-0.036, -0.054, -0.072, -0.090 y  -0.108 MPa) en el contenido de biomasa y calidad comercial, análisis de crecimiento, absorción y extracción nutrimental, durante en cultivos de invierno y verano. En general las diferentes variables evaluadas, biomasa aérea, vida de florero y días a cosecha se vieron afectados por los tratamientos de PO y por las estaciones de crecimiento. La...
Palavras-chave: Análisis de crecimiento; Absorción; Extracción; Hidroponía; Invernaderos; Growth analysis; Absorption; Extraction; Hydroponic; Greenhouse; Doctorado; Fruticultura.
Ano: 2010
URL: http://hdl.handle.net/10521/237

Management strategies of saline water on morphometric characteristics of melon cultivars
Provedor de dados: 70
Autores: Medeiros,José F. de; Terceiro Neto,Cícero P. Cordão; Gheyi,Hans R.; Dias,Nildo da S.; Souza,Mariana S. de M.; Souza,Rauny O. de.
It was to aimed it to investigate effects of various saline water use strategies on melon production and quality of two cultivars (Cucumis melo L., Sancho - C1 and Medellín - C2. The plants were irrigated with water of low (S1 = 0.61 dS m-1) and high (S2 = 4.78 dS m-1) salinity levels, during each crop stage: S1S1S2S2 - T1; S2S1S2S2 - T2; S2S2S1S2 - T3. The 1st, 2nd, 3rd and 4th terms of these sequences correspond to initial growth, flowering, fruit ripening and harvest phenological stages, respectively. Additionally, there was irrigation rotation during all cycle, with water S1 during two days followed by S2 for one day (S1 2 dias + S2 1 dia - T4) and irrigation with non-salt water S2 during all cycle - T5. Moreover, we used as control, the irrigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo L.; Irrigation water quality; Growth analysis.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400005

Growth analysis of sweet pepper cultivated in coconut fiber in a greenhouse
Provedor de dados: 75
Autores: Charlo,Hamilton César de O; Oliveira,Sueyde F de; Castoldi,Renata; Vargas,Pablo F; Braz,Leila T; Barbosa,José Carlos.
Knowledge about the growth of crops allows the planning of rational cultivation methods which contribute to achieve greater potential of plant species, besides supplying information for the construction of descriptive mathematical models of growth. The growth curve of sweet pepper (Eppo hybrid), cultivated in coconut fiber in a greenhouse with fertirrigation, was determined. The experiment consisted initially of 160 plants divided into four blocks. Two plants were analyzed per block every 21 days after transplanting, ending at 189 days after transplant. The cultivation was carried out in plastics pots of 13 L containing coconut fiber, which were arranged in double rows, spaced 0.5 x 0.8 m between simple rows and 1.1 m between double rows. In each harvest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Growth analysis; Fertirrigation.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000300010

Physiological responses of two tropical weeds to shade: I. Growth and biomass allocation
Provedor de dados: 86
Autores: Dias-Filho,Moacyr Bernardino.
Ipomoea asarifolia (Desr.) Roem. &amp;amp; Schultz (Convolvulaceae) and Stachytarpheta cayennensis (Rich) Vahl. (Verbenaceae), two weeds found in pastures and crop areas in Brazilian Amazonia, were grown in controlled environment cabinets under high (800-1000 µmol m-² s-¹) and low (200-350 µmol m-² s-¹) light regimes during a 40-day period. For both species leaf dry mass and leaf area per total plant dry mass, and leaf area per leaf dry mass were higher for low-light plants, whereas root mass per total plant dry mass was higher for high-light plants. High-light S. cayennensis allocated significantly more biomass to reproductive tissue than low-light plants, suggesting a probably lower ability of this species to maintain itself under shaded conditions....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allocation patterns; Growth analysis; Amazonia; Ipomoea asarifolia; Stachytarpheta cayennensis.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000600004

Growth and Development of Digitaria insularis Biotypes Susceptible and Resistant to Glyphosate
Provedor de dados: 87
Autores: PEREIRA,,G.R.; COSTA,,N.V.; MORATELLI,G.; RODRIGUES-COSTA,A.C.P.
ABSTRACT The study aimed to evaluate the growth and development of biotypes of Digitaria insularis susceptible and resistant to glyphosate. Samples of biotypes were collected in Western Paraná in Cascavel, one susceptible (24o57'29.06" S and 53o30'23.73" W) and one resistant (24o54'54.99" S and 53o30'08.55" W; with Resistance Factor of 2.96). The experiment was arranged in a completely randomized design with four replications. The treatments consisted of different plant collection timings, carried out at regular intervals of 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105 and 112 days after emergence. The growth curve of susceptible and resistant biotypes were similar; however, the susceptible biotypes accumulated more leaf dry mass, while the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth analysis; Chemical control; Sourgrass; Weeds.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100224

WEED COMPETITION WITH SOYBEAN IN NO-TILLAGE AGROFORESTRY AND SOLE-CROP SYSTEMS IN SUBTROPICAL BRAZIL
Provedor de dados: 87
Autores: DEISS,L.; MORAES,A.; PELISSARI,A.; FRANZLUEBBERS,A.J.; NETO,F.S.; PONTES,L.S.; BARRO,R.S.; SZYMCZAK,L.S.
ABSTRACT Weed competition on soybean (Glycine max) growth and yield was expected to be different when managed in an agroforestry system as compared with sole-cropping without trees. Therefore agronomic practices to control weeds might need to be modified in agroforestry systems. We analyzed weed competition effects on soybean growth, grain yield, and yield components at different distances from 4year-old eucalyptus (Eucalyptus benthamii) in an alley cropping system, as well as in a sole-crop system in southern Brazil. Above-ground soybean biomass was collected throughout the growing season and a logistic function was used to model crop growth. Weed above-ground biomass sampled during the soybean cycle, and grain yield and yield components at the end of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eucalyptus benthamii; Fire; Glycine max; Growth analysis; Interference; Integrated crop-livestock system.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100268

Growth, biomass allocation and photosynthesis of Rolandra fruticosa (asteraceae) in response to shade
Provedor de dados: 87
Autores: Dias-Filho,Moacyr B.; Chagas Júnior,Aloisio F.
The effects of shade on growth, biomass allocation patterns and photosynthetic response was examined for Rolandra fruticosa (L.) Kuntze, a common perennial weed shrub in cultivated pastures and agricultural areas of Brazilian Amazonia, for plants grown in full sunlight and those shaded to 30 % of full sunlight over a 34-d period. Specific leaf area and leaf area ratio were higher for shade plants during all the experimental period. Shade plants allocated significantly less biomass to root tissue than sun plants and relative growth rate was higher in sun plants. Sun leaves had significantly higher dark respiration and light saturated rates of photosynthesis than shade leaves. The apparent quantum efficiency was higher for shade leaves, while light...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Specific leaf area; Leaf area ratio; Growth analysis; Tropics.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582000000100007

Biological Cycle of Susceptible and Glyphosate-Resistant Sourgrass Biotypes in Two Growth Periods
Provedor de dados: 87
Autores: FERREIRA,S.D.; EXTECKOETTER,V.; GIBBERT,A.M.; BARBOSA,J.A.; COSTA,N.V.
ABSTRACT: Selecting glyphosate-resistant Digitaria insularis may cause changes in the biological cycle of the species. Therefore, the objective of this study was to evaluate the biological cycle of susceptible and glyphosate-resistant D. insularis biotypes in two growth periods (summer/autumn and autumn/winter). Seeds were collected in the municipality of Alagoa Grande (07o02’59" S 35o37’01,5" W), and were considered susceptible (S1), in Cascavel (24o55’27" S 53o27’54.6 ”W) considered as resistant 1 (R1), Entre Rios do Oeste (24o40’44" S 54o17’05" W) considered as resistant 2 (R2) and Marechal Cândido Rondon (24o42’30" S 54o21’10" W) considered as resistant 3 (R3). Evaluations were carried out in the summer/autumn and autumn/winter periods. The collection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digitaria insularis; Growth analysis; Weed; Chemical control.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100276

Growth analysis and yield of tomato crop under different irrigation depths
Provedor de dados: 91
Autores: Monte,José A.; Carvalho,Daniel F. de; Medici,Leonardo O.; Silva,Leonardo D. B. da; Pimentel,Carlos.
The influence of irrigation depth was evaluated on tomato crop hybrid Debora plus for salad in a field experiment in split-block design with five treatments (irrigation depth of 40, 60, 80, 100 and 120% of crop evapotranspiration - ETc) and four replications. During the experiment, ten plant samples were collected to determine phytomass and leaf area to estimate plant growth parameters for different depths of irrigation. Results showed maximal growth between 70 and 80 days after transplanting in all treatments. Increase in irrigation depth above 80% of ETc increased crop growth rate (CGR), leaf area index (LAI) and total production of tomato fruits, although same commercial fruit yield was obtained with the lower depths. Therefore, an increase in depth of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicon; Growth analysis; Drip irrigation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013000900003

Sanitary landfill leachate as a source of nutrients on the initial growth of sunflower plants
Provedor de dados: 91
Autores: Nunes Júnior,Francisco H.; Gondim,Franklin A.; Pereira,Magnum de S.; Braga,Brennda B.; Pontes Filho,Roberto A.; Barbosa,Francisca E. L.
ABSTRACT The aim of this study was to evaluate the initial growth of sunflower seedlings under different concentrations of sanitary landfill leachate, considering the feasibility of its use as source of nutrients for agricultural production. Biometric and vigor variables were analyzed through the measurements of collar diameter, shoot height, number of leaves and shoot and root fresh and dry matters, from January to February 2015. The experimental design was completely randomized in a 5 x 4 factorial scheme: five leachate concentrations (0, 40, 60, 80 and 100 kg N ha-1) x four harvest periods (14, 21, 25 and 29 days after sowing), with five replicates each containing two plants. The data were subjected to analysis of variance and polynomial regression, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Urban waste; Helianthus annus L.; Growth analysis.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000800746

Morphophysiological characterization of giant missionary grass accessions
Provedor de dados: 96
Autores: Lajús,Cristiano Reschke; Scheffer-Basso,Simone Meredith; Miranda,Mario; Denardin,Rosiane Berenice Nicoloso; Valls,José Francisco Montenegro.
In this study, the phenotypic diversity of five accessions of giant missionary grass (Axonopus jesuiticus × A. scoparius) was evaluated by using morphophysiological traits. Accessions V 14337, V 14403, V 14404, V 14405 and V 14406 are hybrids derived from spontaneous crossing that occurred in Vale do Itajaí, Santa Catarina, Brazil. Plants were cultivated in greenhouse and evaluated at 60, 90, 120, 150, 180, 210 and 240 days of growth. Variation was observed for dry matter production, phenology and morphological traits, showing the possibility of selection. Flowering started at 210 days of growth and only in accessions V 14337 and V 14404. The Mahalanobis distance among accessions ranged from 35.64 (V 14403 and V 14405) to 183.38 (V 14337 and V 14405), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: A. catharinensis; Dry matter production; Growth analysis; Phenology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100004

Accumulation of salts in the soil and growth of cowpea under salinity and phosphorus fertilization
Provedor de dados: 124
Autores: Lima,Yuri Bezerra de; Sá,Francisco Vanies da Silva; Ferreira Neto,Miguel; Paiva,Emanoela Pereira de; Gheyi,Hans Raj.
ABSTRACT Cowpea is widely grown in the Brazilian semiarid region, however, due to excess salts in the soil and irrigation water constantly low crop productivity has been observed. Accumulation of salts in the soil, growth and biomass partition of cowpea under salt stress and phosphorus fertilization was evaluated in this study. The assay was conducted in a greenhouse in Mossoró, State of Rio Grande do Norte, Brazil, from September to December 2015, using a Alfissol Latosolic with low phosphorus content. The experiment was carried out in a randomized block design in a factorial 5 x 3 arrangement, consisting of five water salinity levels (0.5, 1.5, 2.5, 3.5 and 4.5 dS m-1) and three doses of superphosphate (60, 100 and 140% of the recommended dose for crop -...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata; Soil fertility; Irrigation; Growth analysis; Saturation extract.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500765

Oat growth under different nitrogen doses in eucalyptus alley cropping system in subtropical Brazil
Provedor de dados: 124
Autores: Deiss,Leonardo; Moraes,Anibal de; Pelissari,Adelino; Skora Neto,Francisco; Silva,Vanderley Porfírio da; Andreolla,Veruschka Rocha Medeiros.
Plant growth analysis was performed to determine how oat (Avena sativa L. cv. IPR 126) cultivated for grain responds to the eucalyptus (Eucalyptus dunnii Maiden) alley cropping system (ACS) in subtropical Brazil. The hypothesis of this work was that oat growth response is not modified by nitrogen at distances relative to 4 year old eucalyptus tracks in the ACS. The objective of this study was to determine how the oat growth was influenced by nitrogen doses (12 and 80 kg N ha-1) at five equidistant positions between two adjacent eucalyptus double line tracks [20 m (4 m x 3 m)] in ACS and traditional no-till farming. The experiment was conducted in a split-block randomized block design with four replicates. It was evaluated the oat relative growth rate, unit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena sativa; Eucalyptus dunnii; Agricultural integrated systems; Growth analysis; Agroforestry.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500017

Growth and productivity of lettuce cultivars under protected environment with and without thermal reflector screen
Provedor de dados: 22
Autores: Gonçalves-Trevisoli, Edilaine Della Valentina; Dartora, Janaína; Mendonça, Heloísa Ferro Constâncio; Rissato, Bruna Broti; Dildey, Omari Dangelo Forlin; Coltro-Roncato, Sidiane; Santana, José Carlos de; Klosowski, Élcio Silvério; Echer, Marcia de Morais; Tsutsumi, Cláudio Yuji.
The aim of the work was to evaluate the growth and productivity of lettuce cultivars cultivated in greenhouse with and without thermo-reflective screens. The experiment was conducted in greenhouse in Assis Chateaubriand, Paraná State. The experimental design was in a randomized block design with six replications and treatments arranged in a 2 x 4 factorial. The first factor consisted of culture environments (with and without thermo-reflective screens 50%) and the second of four cultivars of lettuce (Itapuã, Paola, Vera and Verônica). Five samples were performed weekly for evaluation of dry matter and leaf area used to obtain the absolute and relative growth rates, net assimilation rates, leaf area ratio and specific leaf area. At the last evaluation were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth analysis; Photosynthesis; Lactuca sativa L.; Solar radiation.
Ano: 2017
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14033

Growth rates and yields of cassava at different planting dates in a tropical savanna climate
Provedor de dados: 63
Autores: Phoncharoen,Phanupong; Banterng,Poramate; Vorasoot,Nimitr; Jogloy,Sanun; Theerakulpisut,Piyada; Hoogenboom,Gerrit.
ABSTRACT: Details on growth and yield for cassava planted on different dates are useful for determining suitable genotypes for particular growing seasons. Our aim was to study growth and yield of cassava planted on different dates. Four cassava genotypes (Kasetsart 50, Rayong 9, Rayong 11 and CMR38-125-77) were evaluated using a randomized complete block design (RCBD) with four replications in six growing periods (20 Apr, 25 May, 30 June, 5 Oct, 10 Nov and 15 Dec 2015-2016) at Khon Kaen, Thailand. Soil properties were determined prior to planting, and crop traits and weather data were recorded. The six planting dates had a statistically significant effect on all crop traits. Low temperatures and solar radiation related to low biomass accumulation rates and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climatic factors; Environment; Growth analysis; Growing date.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500376

Seasonal growth variation of peach palms cultivated in containers under subtropical conditions
Provedor de dados: 63
Autores: Tucci,Maria Luiza Sant'Anna; Bovi,Marilene Leão Alves; Machado,Eduardo Caruso; Spiering,Sandra Heiden.
Peach palm (Bactris gasipaes Kunth) is grown in the São Paulo State, Brazil, under climate seasonal variation conditions, mainly temperature and rainfal with possible effects on plant physiology. Recently, due to a higher interest in carrying out physiological experiments on the species, there has been a requirement for more controlled experimental conditions. Therefore, with the aim of studying the seasonal variation of peach palm growth for heart-of-palm production, as well as the possibility of growing them until harvest in pots, for future utilization in physiological experiments, this work was carried out in Campinas, SP, Brazil, with 40 spineless peach palms. One year after seed germination, seedlings were transplanted to 80 L plastic pots, spaced 2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bactris gasipaes; Heart of palm; Growth analysis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200006

Growth and development of yacon in different periods of planting and growing regions
Provedor de dados: 1
Autores: Silva, Diego Mathias Natal da; Oliveira, Fábio Luiz de; Cavatte, Paulo Cezar; Quaresma, Mateus Augusto Lima; Christo, Bruno Fardim.
The increasing interest in the commercial exploitation of yacon has demanded adequate technological knowledge for the implantation and management of the crop, including planting periods and cultivation regions that contribute to the satisfactory growth and development of the species. This study was conducted in two different locations, one in a mountainous region and another in a lowland region. In each location, yacon was planted in four different seasons, fall (April), winter (July), spring (September) and summer (December). We collected primary dry matter accumulation data for different parts of the plant and the leaf area at 30 day intervals. We used these values to calculate the following morphophysiological indexes: specific leaf area, leaf area...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Smallanthus sonchifolius; Growth analysis; Production.; Fisiologia de Plantas Cultivadas.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39442

Crescimento e produtividade do meloeiro Torreon influenciado pela cobertura do solo - DOI: 10.4025/actasciagron.v32i2.3770
Provedor de dados: 1
Autores: Morais, Elís Regina Costa; UFERSA; Maia, Celsemy Eleutério; Universidade Federal Rural do Semi-Árido; Negreiros, Maria Zuleide de; Universidade Federal Rural do Semi-Árido; Araújo Junior, Bernardo Bezerra de; Universidade Federal Rural do Semi-Árido.
Objetivou-se com este trabalho, avaliar índices de crescimento e fisiológicos do meloeiro em função dos graus-dia acumulados e determinar a relação dos índices fisiológicos com a produtividade da cultura em coberto com filme plástico nas cores preto, prateado, amarelo e marrom, e do solo descoberto como testemunha. O experimento foi desenvolvido na Fazenda Santa Júlia Agrocomercial Exportadora de Frutos Tropicais Ltda., Mossoró, Estado do Rio Grande do Norte (agosto-outubro de 2003), em Latossolo Vermelho eutrófico Argissólico, utilizando-se o melão Torreon em blocos casualizados com quatro repetições. A taxa de crescimento absoluta e a taxa de crescimento relativa para o número de folhas e índice de área foliar foram influenciadas pela cobertura do solo e...
Palavras-chave: 5.01.00.00-9 Cucumis melo L.; Graus-dia acumulado; Análise de crescimento AGRONOMIA Cucumis melo L.; Accumulated degree-day; Growth analysis.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3770

Biomass association in specimens and interspecific hybrids of tomatoes
Provedor de dados: 1
Autores: Zeist, André Ricardo; Faria, Marcos Ventura; Resende, Juliano Tadeu Vilela; Gabriel, André; Nonato, Julio José; Santos, Matheus Hermann dos.
The objective of this study is to analyze the growth of wild species of tomato, of the cultivar Redenção and of the respective F1 hybrids of interspecific crossings. We evaluated six wild-type accessions (Solanum pimpinellifolium ‘AF 26970’, S. galapagense ‘LA-1401’, S. peruvianum ‘AF 19684’, S. habrochaites var. hirsutum ‘PI-127826’, S. habrochaites var. glabratum ‘PI-134417’, and S. pennellii ‘LA-716’) and the commercial cultivar Redenção (S. lycopersicum) together with their respective interspecific hybrids. In completely randomized blocks and plots subdivided by time (16, 28, 42, 56, 70, and 84 days after transplanting), we evaluated leaf area (LA), total dry matter (TDM), absolute growth rate (AGR), relative growth rate (RGR) and net assimilation rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Wild accessions; Growth analysis; Pre-breeding.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42806

Growth and development of yacon in different periods of planting and growing regions
Provedor de dados: 1
Autores: Silva, Diego Mathias Natal da; Oliveira, Fábio Luiz de; Cavatte, Paulo Cezar; Quaresma, Mateus Augusto Lima; Christo, Bruno Fardim.
The increasing interest in the commercial exploitation of yacon has demanded adequate technological knowledge for the implantation and management of the crop, including planting periods and cultivation regions that contribute to the satisfactory growth and development of the species. This study was conducted in two different locations, one in a mountainous region and another in a lowland region. In each location, yacon was planted in four different seasons, fall (April), winter (July), spring (September) and summer (December). We collected primary dry matter accumulation data for different parts of the plant and the leaf area at 30 day intervals. We used these values to calculate the following morphophysiological indexes: specific leaf area, leaf area...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.01.03.06-7 Smallanthus sonchifolius; Growth analysis; Production. Fisiologia de Plantas Cultivadas.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39442

Produtividade, crescimento e partição de matéria seca em duas cultivares de feijão - DOI: 10.4025/actasciagron.v31i4.6397
Provedor de dados: 1
Autores: Andrade, Carlos Alberto de Bastos; UEM; Scapim, Carlos Alberto; UEM; Braccini, Alessandro de Lucca e; UEM; Martorelli, Danilo Takara; UEM.
Com o objetivo de caracterizar o crescimento e a produtividade de grãos, das cultivares ‘Ouro Negro’ e ‘BRS MG Talismã’, em condições de campo, na Estação Experimental de Coimbra, Estado de Minas Gerais, pertencente à Universidade Federal de Viçosa (UFV), experimentos de campo foram conduzidos em que se avaliaram o crescimento vegetativo e a produtividade de grãos das duas cultivares. Foram efetuadas amostragens aos 12, 22, 36, 51, 65 e 76 dias após emergência (DAE), sendo determinadas a área foliar e a biomassa dos diferentes componentes da parte aérea, além do índice de área foliar e das taxas de crescimento absoluto e assimilatórias líquidas. Aos 80 DAE (colheita), foram determinados a produtividade de grãos e os seus componentes (número de plantas por...
Tipo: Pesquisa no campo
Palavras-chave: 5.01.03.04-0    Produção de Mudas Phaseolus vulgaris; Genótipos; Análise de crescimento; Componentes da produção; Produtividade de grãos. Fitotecnia Phaseolus vulgaris; Genotype; Growth analysis; Production components; Grain yield.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6397

Development of the banana plants 'Prata Anã' and 'FHIA-01' under the effect of paclobutrazol applied on the soil
Provedor de dados: 42
Autores: Maia,Emanuel; Siqueira,Dalmo L.; Salomão,luiz C.C.; Peternelli,Luiz A.; Ventrella,Marília C.; Cavatte,Rithiely P.Q.
Under some cultivation conditions, excessive growth of the pseudostem of banana plants can be considered a limiting factor, and thus, the use of growth regulators can constitute a valid alternative. This work aimed to evaluate the action of paclobutrazol on the growth of the pseudostem of banana plants and other characteristics of their development. An experiment was installed with five paclobutrazol doses (0; 0.5; 1.0; 1.5; and 2.0 g of a.i. plant-1) combined with two banana plant cultivars ('Prata Anã' and 'FHIA-01'). Paclobutrazol did not affect the number of days from planting to flowering, total leaf area and leaf emission rate. However, it increased leaf permanence on the plants and sucker number, reduced the foliar area of the leaves emitted after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foliar area; Growth analysis; Growth regulator; Musa spp.; Suckers.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200011

USING DIAMETER VARIATION INDEX OF PIONEER SPECIES  FOR CLASSIFICATION AND MODELING TROPICAL FOREST YIELD
Provedor de dados: 193
Autores: Nascimento, Rodrigo Geroni Mendes; Machado, Sebastião do Amaral; Figueiredo Filho, Afonso; Higuchi, Niro.
This study sought to classify the productivity of a representative area of tropical forest, as well as to analyze the relationship between the structural variability of pioneer species and the yield of three management regimes. The study area is located at the Tropical Forestry Experimental Station belonging to INPA (National Institute for Amazon Research), approximately 90 km from downtown Manaus, in the State of Amazonas, Brazil. Data were collected from twelve 1 ha sample plots. Diameter was measured annually for all individuals with DBH  10 cm between the years 1990 and 2008. Pioneer species served as the basis for calculating the Diameter Variability Index VI% over time. Three classes of variability were established according to the guide curve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon Rainforest; Ecological groups; Yield models; Site classification; Growth analysis.
Ano: 2016
URL: http://revistas.ufpr.br/biofix/article/view/49102

Influence of different levels of aluminum on the development of citrus rootstock swingle citrumelo (Citrus paradisi mcf. x Poncirus trifoliata raf.) in nutrient solution
Provedor de dados: 52
Autores: Santos,Carlos Henrique dos; Grassi Filho,Hélio; Rodrigues,João Domingos; Pinho,Sheila Zambello de.
This work aimed at evaluating the influence of different levels of aluminum on the physiological parameters of the citrus rootstock Swingle Citrumelo in hydroponic solution. The experiment was carried out with a completely randomized design with three replications, subdivided in several lots. The levels of aluminum used were: 0, 7.5, 15, 22.5 and 30 mg L-1 in form of AlCl3.6H2O in nutrient solution. Following physiological parameters were evaluated: specific and relative foliar area, relative foliar mass, and the ratio of aerial part dry matter/root system dry matter. The results showed that aluminum did not influence the parameters evaluated except the specific foliar area, which decreased starting at the 7.5 mg L-1 level.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus; Rootstocks; Aluminum; Mineral nutrition; Growth analysis.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100004

Development of mint (Mentha piperita L.) grown on biosolids: evaluation of productivity and essential oil content
Provedor de dados: 52
Autores: Scavroni,Joseane; Ferreira,Leonardo Cesar; Valmorbida,Janice; Boaro,Carmen Sílvia Fernandes.
Development of Mentha piperita L . on biosolids amended soil with levels equivalent to 0, 28, 56 and 112 t ha-1 was evaluated. In order to measure the productivity and its relation with mint essential oil yield, different indices were determined: leaf area, total and several organ dry matter, leaf area ratio, specific leaf area, net assimilation rate and relative growth rate at 30, 44, 58, 72 and 86 days after planting (DAP), and essential oil yield at 90, 110 and 120 DAP. Physiological indices revealed that biosolids prolonged the vegetative phase of the plants, which adapted themselves to the presence of biosolids with time. Plants showed inverse behaviors in relation to productivity, resulting from the primary metabolism, represented by the shoot dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth analysis; Peppermint; Essential oil; Sewage-sludge; Leaf area; Dry matter.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200014

Effects of the size of sown seed on growth and yield of common bean cultivars of different seed sizes
Provedor de dados: 61
Autores: Lima,Elvis Rodrigues; Santiago,Aline Silva; Araújo,Adelson Paulo; Teixeira,Marcelo Grandi.
A field experiment was conducted to evaluate the effects of planting different sizes of seed of the same cultivar on biomass accumulation and grain yield of common bean (Phaseolus vulgaris L.) cultivars of different seed sizes. A 6 X 2 split-plot factorial design with four replicates was employed, with six bean cultivars as main plots and two seed sizes (small and large, the latter twice as heavy as the former) of the same cultivar as subplots. Eight weekly samplings of biomass were performed, and yield components were measured at maturity. Large seeds increased the leaf area index and the shoot and root biomass of bean cultivars, particularly at the beginning of the growth cycle, but they did not affect the pod biomass. Improved growth associated with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Genotype; Growth analysis; Leaf area; Yield components.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000300001

Effects of salt stress on plant growth, stomatal response and solute accumulation of different maize genotypes
Provedor de dados: 61
Autores: Azevedo Neto,André Dias de; Prisco,José Tarquinio; Enéas-Filho,Joaquim; Lacerda,Claudivan Feitosa de; Silva,José Vieira; Costa,Paulo Henrique Alves da; Gomes-Filho,Enéas.
Seeds from eight different maize genotypes (BR3123, BR5004, BR5011, BR5026, BR5033, CMS50, D766 and ICI8447) were sown in vermiculite, and after germination they were transplanted into nutrient solution or nutrient solution containing 100 mmol.L-1 of NaCl and placed in a greenhouse. During the experimental period plant growth (dry matter, shoot to root dry mass ratio, leaf area, relative growth rate, and net assimilation rate), leaf temperature, stomatal conductance, transpiration, predawn water potential, sodium, potassium, soluble amino acids and soluble carbohydrate contents were determined in both control and salt stressed plants of all genotypes studied. Salt stress reduced plant growth of all genotypes but the genotypes BR5033 and BR5011 were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth analysis; Osmoregulation; Salinity; Transpiration; Zea mays; Water relations.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000100005

Radiation levels of UV-A and UV-B on growth parameters and coumarin content in guaco
Provedor de dados: 65
Autores: Alves,Luciano; Deschamps,Cícero.
ABSTRACT:  Guaco is a medicinal plant species containing coumarin, a secondary metabolite whose concentration is influenced by various factors, such as the level of exposure to UVA (315-400 nm) and UVB (280-315 nm) radiation, age of the plant, and position of the storage organ in the plant. This study aimed to assess the effect of different blocking levels of UVA and UVB radiation on growth parameters and coumarin content of two guaco accessions. Treatments did not affect any of the growth parameters assessed, except leaf area. Coumarin content was higher in leaves collected from the upper canopy and with unblocked exposure to UVA and UVB.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mikania glomerata Spreng; 1-2-benzopyrone; Secondary metabolism; Growth analysis; Environmental factors.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600403

Biomass production, yield and chemical composition of peppermint essential oil using different organic fertilizer sources
Provedor de dados: 64
Autores: Costa,Andressa Giovannini; Bertolucci,Suzan Kelly Vilela; Chagas,Jorge Henrique; Ferraz,Elza Oliveira; Pinto,José Eduardo Brasil Pereira.
Mentha x piperita L. is an aromatic and medicinal species belonging to the family Lamiaceae that is popularly known as peppermint. The aim of this study was to evaluate the effects of organic fertilizer sources on the biomass production, yield and chemical composition of peppermint (Mentha piperita L.) essential oil. The experiment was conducted using a completely randomized design (CRD) with a 2 x 5 factorial scheme, two sources of manure (cattle and poultry), five doses (0, 3, 6, 9 and 12 kg m-2) and four replicates. Different doses of cattle and poultry manure significantly affected plant biomass production and the responses of other variables, including leaf area, leaf weight ratio, leaf area ratio, root:shoot ratio, yield and chemical composition....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mentha piperita; Cattle manure; Poultry manure; Growth analysis.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300002