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Registros recuperados: 11
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Efeito da deficiencia hidrica na producao de trigo. Repositório Alice
RODRIGUES, O.; LHAMBY, J.C.B.; DIDONET, A.D.; MARCHESE, J.A.; SCIPIONI, C..
O objetivo do presente trabalho foi avaliar os efeitos de diferentes niveis de deficiencia hidrica em alguns parametros associados a producao de graos de trigo, e definir os periodos e niveis criticos de sua ocorrencia, e suas intensidades. O experimento foi instalado em vasos, em casa de vegetacao, com temperatura de 18.C. e umidade de 65%. Nos estadios fenologicos de quarta folha, folha-bandeira, antese e grao leitoso, foram aplicados niveis de deficiencia hidrica de -1,0; -2.0 e -3.0 MPa, por suspensao da irrigacao. Assim que os niveis de estresse no xilema eram atingidos, as plantas foram reidratadas. O estadio de folha-bandeira foi o mais sensivel a deficiencia hidrica, ou seja: causou a maior reducao no rendimento, e, em seguida, na antese e na...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Triticum aestivum; Afilhamento; Area foliar; Estadios fenologicos; Componentes do rendimento de graos; Wheat; Water deficiency; Tillering; Phenological stages; Yield componentes.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/89463
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Effect of herbage allowances on biomass flows in Italian ryegrass Ciência Rural
Graminho,Larissa Arnhold; Rocha,Marta Gomes da; Pötter,Luciana; Rosa,Aline Tatiane Nunes da; Salvador,Paulo Roberto; Amaral,Luiz Gonzaga do; Bergoli,Tuani Lopes; Cadó,Lucas Munareto.
ABSTRACT: The objective of this study was to determine the leaf tissue flows in Italian ryegrass (Lolium multiflorum Lam.), in different phenological stages, grazed by lambs, and managed under three herbage allowances (6, 9 and 12 kg DM/100 kg body weight under rotational stocking method. The experimental design was completely randomized, with repeated measures arrangement. Forage allowances determined similar growth and intake flows, actual and potential utilization efficiencies of grass and they were different in the phenological stages of Italian ryegrass. The intake of leaf blade, as a percentage of body weight, was higher in the 12% herbage allowance. Considering leaf tissue flows, Italian ryegrass can be managed in forage allowances that vary between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Intake; Lambs; Phenological stages; Lolium multiflorum.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000700652
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Growth and fiber quality of colored cotton under salinity management strategies AGRIAMBI
Soares,Lauriane A. dos A.; Fernandes,Pedro D.; Lima,Geovani S. de; Suassuna,Janivan F.; Brito,Marcos E. B.; Sá,Francisco V. da S..
ABSTRACT Using saline water in the agricultural activity has become a reality in several regions of the world. Due to the increase in the demand for fresh water, it is necessary to use cultivation strategies and genotypes tolerant to saline stress to make the production viable. In this context, effects of irrigation management strategies with low-salinity water (0.8 dS m-1) and high-salinity water (9.0 dS m-1) were evaluated, varying the phenological stages of the plants, on the growth and fiber quality of colored cotton. Three cotton cultivars submitted to seven irrigation management strategies were used, constituting a 3 x 7 factorial scheme, in a randomized block design with three replicates, in plots and in protected environment. Saline water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gossypium hirsutum L.; Saline stress; Phenological stages.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000500332
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Influence of host preference, mating, and release density on the parasitism of Telenomus remus (Nixon) (Hymenoptera, Platygastridae) Rev. Bras. entomol.
Queiroz,Ana Paula de; Bueno,Adeney de Freitas; Pomari-Fernandes,Aline; Bortolotto,Orcial Ceolin; Mikami,Adriana Yatiem; Olive,Lopes.
ABSTRACT We evaluated the influence of host preference, mating, and release density on Telenomus remus (Nixon, 1937) (Hymenoptera: Platygastridae) parasitizing eggs of Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae). First, we tested host preference of T. remus (free choice test) offered a choice between eggs of Corcyra cephalonica (Stainton, 1865) (Lepidoptera: Pyralidae) and S. frugiperda. Parasitism capacity and host preference (S. frugiperda) of T. remus reared on either of the two hosts did not differ. Secondly, we evaluated the influence of mating behavior of T. remus females on its parasitism. Only the offspring sex ratio differed between treatments, indicating that the species reproduces by parthenogenesis of the arrhenotoky type....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arrhenotokous parthenogenesis; Optimal number; Phenological stages; Preimaginal conditioning.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000100086
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Influence of Two Acyclic Homoterpenes (Tetranorterpenes) on the foraging behavior of Anthonomus grandis Boh. Repositório Alice
MAGALHÃES, D. M.; BORGES, M.; LAUMANN, R. A.; WOODCOCK, C. M.; PICKETT, J. A.; BIRKETT, M. A.; BLASSIOLI MORAES, M. C..
bitstream/item/180707/1/Magalhaes2016-Article-InfluenceOfTwoAcyclicHomoterpe.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Homoterpenes; Phenological stages; Plant volatiles; Ontogenetic; Host plant; Cotton; Coleoptera; Curculionidae.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1056118
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Phenological, physicochemical, and productive characteristics of 'Vênus' grapevine onto rootstocks PAB
Tecchio,Marco Antonio; Silva,Marlon Jocimar Rodrigues da; Paiva,Ana Paula Maia; Moura,Mara Fernandes; Terra,Maurilo Monteiro; Pires,Erasmo José Paioli; Leonel,Sarita.
Abstract: The objective of this work was to evaluate the phenological characteristics and yield of 'Vênus' grapevine (Vitis labrusca) grafted onto different rootstocks, as well the physicochemical traits of its grapes during the 2013, 2014, and 2015 crop seasons. The evaluated rootstocks were 'IAC 766', 'IAC 572', 'IAC 313' and 'IAC 571-6'. The length of the main phenological stages of the grapevine and its thermal demands were assessed during two growing seasons and expressed as days after pruning and degree-day sum, respectively. Grapevine yield and berry physicochemical characteristics were assessed during three crop seasons. 'Vênus' phenological cycle and thermal demands, as well as the chemical characteristics of its grapes, varied with the climate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis labrusca; Degree-days; Hybrid grapes; Phenological stages; Thermal requirement.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102702
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Proposal of double-cropping system for 'BRS Isis' seedless grape grown insubtropical area. Repositório Alice
AHMED, S.; ROBERTO, S. R.; SHAHAB, M.; COLOMBO, R. C.; SILVESTRE, J. P.; KOYAMA, R.; SOUZA, R. T. de.
?BRS Isis?is a new colored seedless table grape tolerant to downy mildew, the main vine disease in subtropicalhumid areas. This new seedless cultivar is an interspecific hybrid from the crossing of CNPUV 681-29 [Arkansas1976 × CNPUV 147-3 (?White Niagara?×?Venus?)] ×?BRS Linda?. However, its performance under subtropicalconditions hasn ́t been assessed yet, especially under double annual cropping system. For this purpose, a re-search was designed with the objective to characterize the phenology and the main physicochemical propertiesof this new cultivar. The trial was carried out in a commercial vineyard of?BRS Isis?seedless grape from 2-year-old vines grafted on?IAC 766 Campinas?rootstock, located in Marialva, state of Paraná (PR), Brazil, in...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Table grape; Multiple-crop system; Phenological stages; Quality attributes; Grape grown; BRS Isis; Seedless.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107115
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Rootstock-scion interaction: 6. Phenology, chilling and heat requirements of Cabernet Sauvignon grapevine. Repositório Alice
MIELE, A..
The grapevine phenology is dependent on several factors, such as genetics, soil characteristics, climate conditions, pests and diseases and vineyard cultural practices. Among these, grafting may have an effect on the scion behavior due to the influence of the rootstock. Therefore, an experiment was carried out for two years to determine the effect of rootstocks on Cabernet Sauvignon (CS) grapevine phenology, chilling and heat requirements. Treatments consisted of vines grafted on the rootstocks Rupestris du Lot, 101-14 Mgt, 3309 C, 420A Mgt, 5BB K, 161-49 C, SO4, Solferino, 1103 P, 99 R, 110 R, Gravesac, Fercal, Dogridge and Isabel. Budbreak and flowering of the vines, veraison and maturity of the grapes were the phenological stages evaluated, determining...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Phenological stages; Vitis Vinifera; Viticulture; Grapes.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116409
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Rootstock-scion interaction:6. Phenology, chilling and heat requirements of Cabernet Sauvignon grapevine Rev. Bras. Frutic.
Miele,Alberto.
Abstract The grapevine phenology is dependent on several factors, such as genetics, soil characteristics, climate conditions, pests and diseases and vineyard cultural practices. Among these, grafting may have an effect on the scion behavior due to the influence of the rootstock. Therefore, an experiment was carried out for two years to determine the effect of rootstocks on Cabernet Sauvignon (CS) grapevine phenology, chilling and heat requirements. Treatments consisted of vines grafted on the rootstocks Rupestris du Lot, 101-14 Mgt, 3309 C, 420A Mgt, 5BB K, 161-49 C, SO4, Solferino, 1103 P, 99 R, 110 R, Gravesac, Fercal, Dogridge and Isabel. Budbreak and flowering of the vines, veraison and maturity of the grapes were the phenological stages evaluated,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera; Viticulture; Grape; Phenological stages.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000600204
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Semiochemicals from herbivory induced cotton plants enhance the foraging behavior of the cotton boll weevil, Anthonomus grandis. Repositório Alice
MAGALHÃES, D. M.; BORGES, M.; LAUMANN, R. A.; SUJII, E. R.; MAYON, P.; CAULFIELD, J. C; MIDEGA, C. A. O.; KHAN, Z. R.; PICKETT, P. J. A.; BIRKETT, M. A.; MORAES, M. C. B..
The boll weevil, Anthonomus grandis, has been monitored through deployment of traps baited with aggregation pheromone components. However, field studies have shown that the number of insects caught in these traps is significantly reduced during cotton squaring, suggesting that volatiles produced by plants at this phenological stage may be involved in attraction. Here, we evaluated the chemical profile of volatile organic compounds (VOCs) emitted by undamaged or damaged cotton plants at different phenological stages, under different infestation conditions, and determined the attractiveness of these VOCs to adults of A. grandis. In addition, we investigated whether or not VOCs released by cotton plants enhanced the attractiveness of the aggregation pheromone...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Host plant; Phenological stages; Planta hospedeira; Anthonomus Grandis; Curculionidae; Terpenoids.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/951175
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Temporal variation of normalized difference vegetation index (NDVI) and calculation of the crop coefficient (Kc ) from NDVI in areas cultivated with irrigated soybean Ciência Rural
Oliveira,Thálita Carrijo de; Ferreira,Elizabeth; Dantas,Antônio Augusto Aguilar.
ABSTRACT: Vegetation indices obtained by remote sensing products have various applications in agriculture. An important application of the Normalized Difference Vegetation Index (NDVI) is obtaining the crop coefficient (Kc). The aims of this study were to analyze NDVI temporal profiles and to obtain Kc from the NDVI vegetation index product MOD13Q1. The analysis is based on the phenological stages of irrigated soybean crops in the municipality of Planura/MG during the 2010/2011 growing season. Areas planted with irrigated soybean were identified through fieldwork. Temporal series of the MOD13Q1 products were used to analyze NDVI, allowing the extraction of NDVI values for all points in the period studied. The NDVI temporal profiles showed a similar pattern...
Tipo: Info:eu-repo/semantics/article Palavras-chave: MOD13Q1; Phenological stages; Temporal profiles.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901683
Registros recuperados: 11
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