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| Registros recuperados: 215 | |
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| Streck,Nereu Augusto. |
| Developmental models can help growers to decide management practices, and to predict flowering and harvest time. Currently, a double exponential function is proposed as a generalized temperature response function for chrysanthemum. This function is not the most appropriate because its parameters lack biological meaning. The objective of this study was to develop a nonlinear temperature response function of chrysanthemum development that has parameters with biological meaning. The proposed function is a beta function with three parameters, the cardinal temperatures (minimum, optimum, and maximum temperatures for development), which were defined as 0, 22, and 35ºC. Published data of temperature response of development of three cultivars, which are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phenology; Flowering; Model. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000100008 |
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| Mattar,Gabriel Stefanini; Moraes,Carolina Cinto de; Meletti,Laura Maria Molina; Purquerio,Luis Felipe Villani. |
| Abstract The mineral nutrition is essential to increase yield and fruit quality of passion fruit. There is no information of nutrient accumulation throughout the production cycle. Thus, in order to assist in the correct nutrients supply and update the recommendations, studies involving cultivars and cultivation techniques are necessary. The aim of this study was to evaluate the plant growth, the nutrient accumulation and the exportation in plants of yellow passion fruit cv. IAC 275. The experimental design was a randomized block, with three replications, where the treatments were evaluation times. Stem length, dry mass matter and nutrient accumulation in aerial part (leaves and stems), fruits and roots were evaluated. The maximum daily accumulation rate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis; Advanced seedling; Annual cultivation; Mineral nutrition; Phenology; Sustainability. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300701 |
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| Gomes Junior, Francisco Guilhien; ESALQ - USP; Sá, Marco Eustáquio de; UNESP; Muraishi, Cid Tacaoca; UNESP. |
| A aplicação de N em cobertura é indispensável para a obtenção de altas produtividades do feijoeiro e estudos de respostas ao fertilizante em condições de semeadura direta e preparo convencional do solo ainda consistem numa necessidade fundamental. Assim, a pesquisa teve como objetivo avaliar o efeito da aplicação de N e a produtividade do feijoeiro em sistema de semeadura direta e de preparo convencional do solo. O delineamento experimental foi o de blocos casualizados em esquema fatorial (2x8+1) com quatro repetições. Os tratamentos constituíram-se da combinação das doses de 40 e 80 kg ha-1 de N aplicadas em oito épocas do estádio V4 do desenvolvimento vegetativo (V4-3, V4-4, V4-5, V4-6, V4-7, V4-8, V4-9 e V4-10), além da testemunha sem N em cobertura. O... |
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Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal Phaseolus vulgaris L.; Cobertura morta; Adubo nitrogenado; Fenologia Phaseolus vulgaris L.; Mulching; Nitrogen fertilizer; Phenology. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5967 |
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| Croge,Camila Pereira; Cuquel,Francine Lorena; Biasi,Luis Antonio; Bona,Claudine de; Pintro,Paula Toshimi Matumoto. |
| Abstract Phenological studies with blackberry cultivars and the physical, chemical and sensory characterization of fruits are necessary to select the best cultivar adapted to local conditions and for the correct destination of fruits. The objective of this work was to evaluate the phenological stages of different blackberry cultivars, as well as to determine the quality of fruits, focusing on the recommendation of cultivars that are more adapted to local climate conditions. Moreover, the aim was to indicate the best destination of fruits produced, for either fresh consumption or as raw material for processing. The results indicated that the cultivars studied have adequate conditions for the expression of their productive potential, being Tupy cultivar the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rubus; Small fruits; Phenology; Sensory analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000200301 |
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| SILVA, V de P. R. da; AZEVEDO, P. V. de; SILVA, B. B. da; ESPINOLA SOBRINHO, J.; LIMA FILHO, J. M. P.; TEIXEIRA, A. H. de C.; SOARES, J. M.; LOPES, P. M. de O.. |
| Este estudo analisou medidas porométricas feitas em um pomar de manga, variedade Tommy Atkins, plantado em Fevereiro de 1993, e irrigado por gotejamento no campo experimental da Embrapa Semi-Árido em Petrolina, PE, Brasil (Latitude: 090 09`S, Longitude: 400 22`W; altitude: 365,5m), usando um porômetro de difusão, LI - 1600 (Licor, EUA). |
| Tipo: Parte de livro |
Palavras-chave: Estresse hidrico; Pernambuco; Petrolina; Fisiologia da planta; Mango.; Manga; Fenologia; Fisiologia; Irrigação; Mangifera Indica; Stress.; Irrigation; Mangoes; Phenology; Physiology.. |
| Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/134370 |
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| González-Esquinca,Alma Rosa; De-La-Cruz-Chacón,Iván; Castro-Moreno,Marisol; Orozco-Castillo,José Agustín; Riley- Saldaña,Christian Anabi. |
| Chemical studies of the plant family Annonaceae have intensified in the last several decades due to the discovery of annonaceous molecules with medicinal potential (e.g., benzylisoquinoline alkaloids and acetogenins). Approximately 500 alkaloids have been identified in 138 Annonaceae species in 43 genera. In addition, until 2004, 593 annonaceous acetogenins (ACGs) had been identified, from 51 species in 13 genera.This suggests that plants from this family allocate important resources to the biosynthesis of these compounds. Despite the diversity of these molecules, their biological roles, including their physiological and/or ecological functions, are not well understood. In this study, it was provided new data describing the variety and distribution of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Early development; Secondary metabolism; Ecological functions; Phenology. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500001 |
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| PEREIRA, J. W. de L.; ALBUQUERQUE, M. B.; MELO FILHO, P. A.; NOGUEIRA, R. J. M. C.; LIMA, L. M. de; SANTOS, R. C. dos. |
| tThe regular water supply during life cycle is essential to determine the yield in the legumes. In semiaridenvironments, the irregular rainfall and high temperature influence the phenology of crops impairing theyield. Peanut is an oleaginous crop with broad adaptation to tropical and semiarid climates, but yield isoften harmed when plants face water irregularities during reproductive phase. The recommendation ofcultivars tolerant to environments with water?limitation is indispensable to farmers in order to ensurereasonable production when drought settles down. Here, we evaluating peanut bred lines in order toassess drought tolerance based on physiological and yield traits, in greenhouse and field assays. In green-house experiment, 2 genotypes (BR 1,... |
| Tipo: Artigo de periódico |
Palavras-chave: Genótipo; Amendoim; Water stress; Legumes; Phenology; Semiarid zones. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1064841 |
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| TEIXEIRA, A. H. de C.. |
| Dados de saldo de radiacao, fluxo de calor no solo, gradientes de temperatura e pressao do vapor, coletados no Campo Experimental da Embrapa Semi-Arido, em Petrolina, PE, foram utilizados na avaliacao dos comportamentos diurno e sazonal dos componentes do , balanco de energia, durante as fases fenologicas da cultura da banana, irrigada por .microaspersao, no primeiro ano de producao. Em media, o saldo de radiacao representou 63% da radiacao solar global. A razao de Bowen foi utilizada na medicao dos fluxos de calor latente e de calor sens¡vel. A maior porcao do saldo de radiacao foi usada como fluxo de calor latente , (87%) seguido pelo fluxo de calor no solo (11 %) e pelo fluxo de calor sensivel (2%). O baixo percentual do saldo de radiacao usado como... |
| Tipo: Artigo de periódico |
Palavras-chave: Fluxo; Flux; Balanço de Energia; Banana; Calor; Fenologia; Irrigação; Musa sp; Radiação Solar; Heat; Irrigation; Phenology; Solar radiation. |
| Ano: 2001 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/134284 |
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| Schmidt,Denise; Caron,Braulio O; Valera,Oscar; Meira,Daniela; Fontana,Daniele C; Zanatta,Thais P; Werner,Carla J; Brezolin,Patricia. |
| ABSTRACT The objective of this study was to determine the base temperature of escarole and to apply in the phenological analysis of crop during four growing periods. The study was carried out with escarole (Chicorium endivia) ‘Escarola Lisa’ cultivar, at the Federal University of Santa Maria, campus Frederico Westphalen-RS. The experiment was performed in a randomized block design with four sowing periods (P1: 2/15/2015; P2: 04/29/2015, P3: 07/22/2015, P4: 10/16/2015) and 10 replicates, each replicate being one plant. The evaluations consisted of counting the number of leaves, performed three times a week after transplanting date until the harvesting point. To determine the base temperature, the following methods were used: standard deviation in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicorium endivia; Phenology; Degree-days; Leaf emission. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400466 |
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| ROSA,LIÉGE; CASTELLANI,TANIA TARABINI; REIS,ADEMIR. |
| Este estudo avaliou as características morfológicas, fenológicas e aspectos da biologia reprodutiva dos indivíduos de uma população de Butia capitata em uma restinga no litoral de Laguna, SC. Numa área de 2500 m2, foram registradas 215 plantas com altura média total de 86,39 cm (S= 27,39; min= 1 e máx= 311). Os indivíduos com altura igual ou inferior a 20 cm não apresentavam evidências de reprodução. A porcentagem de plantas reprodutivas aumentou entre plantas de maior porte, mas nem todos os indivíduos em fase reprodutiva floresceram em anos subseqüentes. Os parâmetros altura total e número de folhas, altura total e comprimento do limbo foliar, assim como número de folhas e número de infrutescências se apresentaram positivamente correlacionados. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Butia capitata; Phenology; Reproduction; Sandy coastal vegetation. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000300007 |
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| Registros recuperados: 215 | |
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