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Efeitos do thidiazuron e do ácido giberélico nas características dos cachos e bagas de uvas 'niagara rosada' na regi o de Jundiaí-SP  [cached]
Botelho Renato Vasconcelos,Pires Erasmo José Paioli,Terra Maurilo Monteiro,Carvalho Cássia Regina Limonta
Revista Brasileira de Fruticultura , 2003,
Abstract: Dois experimentos foram conduzidos em vinhedo localizado na regi o de Jundiaí-SP, com o objetivo de estudar-se os efeitos de aplica es de fitorreguladores em uvas 'Niagara Rosada'. No primeiro ensaio, utilizou-se de thidiazuron na concentra o de 5 ou 10 mg.L-1, e/ou ácido giberélico na concentra o de 100 mg.L-1. No segundo experimento, as doses de thidiazuron foram: 0; 2,5; 5,0; 7,5; 10,0; 12,5 e 15,0 mg.L-1. Os fitorreguladores foram aplicados mediante única imers o dos cachos em solu o, 14 dias após a plena flora o. Foram avaliados massa, largura e comprimento dos cachos e bagas; massa dos enga os; número de bagas; número de sementes; teor de sólidos solúveis totais e acidez total titulável do mosto. No primeiro ensaio, os maiores valores de massa, comprimento e largura das bagas foram verificados para os tratamentos com thidiazuron associado a ácido giberélico. O tratamento isolado de ácido giberélico n o foi efetivo para aumentar o tamanho das bagas e reduziu o número de bagas por cacho. No segundo experimento, aplica es de thidiazuron aumentaram linearmente a massa de cachos e enga os, e a massa, largura e comprimento das bagas. As variáveis teor de sólidos solúveis totais, acidez total titulável, número de sementes e largura de cachos n o foram influenciadas pelo TDZ e pelo AG3.
Efeitos do thidiazuron e do ácido giberélico nas características dos cachos e bagas de uvas 'niagara rosada' na regi?o de Jundiaí-SP
Botelho, Renato Vasconcelos;Pires, Erasmo José Paioli;Terra, Maurilo Monteiro;Carvalho, Cássia Regina Limonta;
Revista Brasileira de Fruticultura , 2003, DOI: 10.1590/S0100-29452003000100028
Abstract: two trials were carried out in vineyards located in jundiaí-sp, with the objective of studying the effects of growth regulators applications on 'niagara rosada' grapes. in the first trial, it was used thidiazuron (tdz) at 5 or 10mg.l-1, and/or gibbellic acid at 100mg.l-1. in the second experiment, the following doses of thidiazuron were used: 0; 2.5, 5.0, 7.5, 10.0, 12.5 and 15.0mg.l-1. the growth regulators were applied by dipping the cluster 14 days after full blooming. it was evaluated weight, length and width of clusters and berries; rachis weight; number of berries; number of seeds; total soluble solutes content and total titratable acidity of juice. in the first experiment, the highest weight, length and width of berries were verified to the treatments with thidiazuron associated to gibberellic acid. treatments with only gibberellic acid was not effective in increasing berry size and reduced number of berries per cluster. in the second trial, thidiazuron applications increased linearly weight of rachis and cluster; and weight, length and width of berries. there weren't significant differences for total soluble solutes content, total titratable acidity, number of seeds and cluster width.
Uso de bioestimulante na videira 'Niagara Rosada'
Tecchio, Marco Antonio;Leonel, Sarita;Camili, Elizangela Clarete;Moreira, Gláucia Cristina;Paioli-Pires, Erasmo José;Rodrigues, Jo?o Domingos;
Ciência e Agrotecnologia , 2006, DOI: 10.1590/S1413-70542006000600030
Abstract: the experiment was made during august until dezember/2004 period, in grape orchard of 'niagara rosada' located at pratanea region, s?o paulo, brazil. the research had as purpose to study the effects of plant growth regulator (stimulate) on morphological and physical-chemical characteristics of 'niagara rosada' grape. the clusters were sprayed with plant growth regulator solution at 0, 5, 10, 15 e 20mg l-1, 25 days after flowering. the experimental design was at randomized blocks with five replications and tree clusters per parcels. it was evaluated: the fresh weight of clusters and rachis, pedicel diameter, total soluble solids contents, titratable acid and ph. the plant growth regulator spraying increased the clusters length and pedicel diameter and decreased the soluble solids contents.
Reguladores vegetais influenciando número e tamanho de células das bagas da uva 'Niagara Rosada'
Vieira, Cássia Regina Yuriko Ide;Pires, Erasmo José Paioli;Terra, Maurilo Monteiro;Tecchio, Marco Antonio;Vieira, Maria do Carmo;
Revista Brasileira de Fruticultura , 2008, DOI: 10.1590/S0100-29452008000100007
Abstract: the objective of this investigation was to evaluate the effect of the gibberellic acid, thidiazuron and quinmerac on grape berries anatomy of grapevine 'niagara rosada', in a vineyard located in dourados - ms. three trials were carried out. in the first trial, it was used gibberellic acid (ag3) 0, 15, 30, 45, 60, 75 and 90 mg.l-1, applied in the bloom and repeated 14 days later (e1e2) and in the other treatment, the same compound and doses applied only once, 14 days after the bloom (e2); in the second experiment, thidiazuron (tdz) 0, 5, 10, 15, 20, 25 and 30 mg.l-1, applied four days before antesis and repeated six days after the bloom (e1e2); and in the other treatment, the same compound and doses applied only once six days after the bloom (e2); and in the third, quinmerac 0, 10, 20, 30, 40, 50 and 60 mg.l-1, applied in the bloom and repeated 14 days after (e1e2) and in the other treatment, the same compound and doses applied only once 14 days later the bloom (e2). the plant regulators were applied through cluster dipping with surfactant agral?, 1% added to solutions. the variables evaluated were: berries cells number and dimensions. from the obtained results, it was observed that two applications of gibberellic acid, thidiazuron and quinmerac promoted the cellular division, while the cellular expansion was observed with only one application of thidiazuron and quinmerac.
CONTROLE QUíMICO E CULTURAL DAS PLANTAS DANINHAS NA VIDEIRA 'NIAGARA ROSADA'  [cached]
PAULO EDISON MARTINS,FUJIWARA MAMOR,TERRA MAURILO MONTEIRO,MARTINS FERNANDO PICARELLI
Bragantia , 1997,
Abstract: Estudou-se o controle das plantas daninhas e a seletividade dos herbicidas diclobenil, diuron e simazine à cultura da videira `Niagara Rosada', procurando-se separar os efeitos da cobertura morta sobre os fatores de produ o e o teor de sólidos solúveis do suco da uva. O delineamento experimental utilizado foi de blocos ao acaso com quatro repeti es. Verificou-se que os herbicidas diuron (2,0 kg/ha), simazine (2,4 kg/ha) e diclobenil (3,04; 4,05 e 5,06 kg/ha) foram seletivos à cultura da videira e eficientes no controle das plantas daninhas capim-colch o (Digitaria horizontalis Willd.), caruru (Amaranthus hibridus L.), guanxuma (Sida spp.) e pic o-preto (Bidens pilosa L.). A cobertura vegetal de capim-gordura (Melinis minutiflora L.) foi eficiente no controle das plantas daninhas.
CONTROLE QUíMICO E CULTURAL DAS PLANTAS DANINHAS NA VIDEIRA 'NIAGARA ROSADA'
PAULO, EDISON MARTINS;FUJIWARA, MAMOR;TERRA, MAURILO MONTEIRO;MARTINS, FERNANDO PICARELLI;PIRES, ERASMO JOSé PAIOLI;
Bragantia , 1997, DOI: 10.1590/S0006-87051997000100014
Abstract: this study aimed at controlling the weeds in grapevine `niagara rosada' using grass mulching and evaluating the selectivity of three herbicides. the experiment consisted of a randomized complete block design with four replications and the following doses of herbicides: 3.04, 4.05 and 5.06 kg/ha of dichlobenil; 2.00 kg/ha of diuron and 2.40 kg/ha of simazine. there were no differences in grape yield and soluble solids contents of grape juice for the three herbicides or among the doses of dichlobenil used. the herbicides were efficient in controlling digitaria horizontalis willd., amaranthus hibridus l., sida spp. and bidens pilosa l. the grass mulching melinis minutiflora l. was also efficient in controlling the weeds.
A??o do cepa e do ácido giberélico na frutifica??o da videira 'niagara rosada'
Castro, Paulo R.C.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1975, DOI: 10.1590/S0071-12761975000100010
Abstract: studies were carried out to establish the effects of exogenous growth regulators on vitis (labrusca x vinifera) 'niagara rosada' fruiting. the investigations were done in the jundiaí research station, agronomic institute state of s?o paulo, always using disease-free vineyards of good productivity. the morphological transformations of clusters were carried out under the following aspects: weight, length and width of cluster; number of berries; weight, length average and width average of berries; length average/width average ratio of berries; number of seeds; length and diameter of secondary rachis. that characteristics were determined at the time of maturity plus the total sugars, total acid, maturity index and reducing sugars in samples of all treatments. the experiment were conduced in order to determine the doses that resulted in the most beneficial effects, always using applications by immersion of the inflorescence. the experiment consisted of appplications of (2-chloroethyl) phosphonic acid (cepa) at concentrations of 50, 100, 250, 500, 1,000 and 2,000 ppm, 14 days before flowering; treatments with gibberellic acid at concentrations of 100 and 200 ppm before full bloom, 10 days after full bloom, and both before plus after full bloom. treatment with cepa 100 ppm plus gibberellic acid 100 ppm before full bloom and check treatment were also used. the use of cepa before flowering at the concentrations used, did not result in good results in 'niagara rosada' clusters; applications of gibberellic acid did not differ significantly from the nontreated vines under the conditions studied.
Efeitos de giberelinas e auxina na frutifica??o da videira 'Niagara Rosada'
Castro, Paulo R. C.;Ferraz, Eduardo C.;Scaranari, Hélio J.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1974, DOI: 10.1590/S0071-12761974000100029
Abstract: studies were carried out to establish the effects of exogenous growth regulators on vitis (labrusca x vinifera) 'niagara rosada' fruiting. the investigations were done in the jundiaí research station, agronomic institute state of s?o paulo, always using disease-free vineyards of good productivity. the morphological transformations of clusters were studied under the following aspects: weight, length and width of cluster; number of berries; weight, length average and width average of berries; length average/width average ratio of berries; number of seeds; length and diameter of rachis; width of cluster minus berries; length and diameter of secondary rachis. that characteristics were determined at the time of maturity plus the total sugars, total acid, maturity index and reducing sugars in samples of all treatments. the experiment was conducted in order to determine the doses that resulted in the most beneficial effects, always using applications by immersion of the inflorescence. in 1970 the experiment consisted of applications of gibberellins and 2-hydroxymethyl-4-chlorophenoxyacetic acid treatments of 5, 10, 25, 50, 100 and 500 ppm; gibberellins 50 ppm plus 2-hydroxymethyl-4-chlorophenoxyacetic acid 50 ppm and nontreated, 11 days after flowering. the effectiveness of 100 ppm of gibberellins after flowering to increase cluster weight, berry number and weight, elongation of secondary rachis was determined. treatment with gibberellins 50 ppm plus 2-hydroxymethyl-4-chlorophenoxyacetic acid 50 ppm increases cluster weight, berries number and weight. gibberellins at concentration of 500 ppm stimulated berry elongation but did not benefit other characters. application of 2-hydroxymetlhyl-4-chlorophenoxyacetic acid after flowering, at the concentrations used did not result in good results in 'niagara rosada' fruiting under the conditions studied.
Influência do sistema de condu??o na produ??o e na qualidade dos frutos das videiras 'Folha de Figo' e 'Niagara Rosada' em Caldas, MG
Norberto, Paulo Márcio;Regina, Murillo de Albuquerque;Chalfun, Nilton Nagib Jorge;Soares, Angela Maria;Fernandes, Vanessa Brito;
Ciência e Agrotecnologia , 2008, DOI: 10.1590/S1413-70542008000200016
Abstract: the present work was developed in the station of viticulture and enology of caldas epamig, caldas, mg, and it aimed to evaluate the influence of the conduction system in the production and in the quality of the fruits of the vines 'folha de figo' and 'niagara rosada' during the crops 2003, 2004 and 2005. as you cultivate cup it was used rosy niagara and leaf of fig, grafted in the door-graft ' 420-to '. the experimental design was fully randomized, disposed in factorial scheme 4x2. the conduction systems adopted were: simple string, pergola, espaldeira and lira. the following variables were evaluated: mass and medium number of branches; shoot growth; shoot number; plant production; estimated yield; of total soluble solids levels (obrix), total titrable acidity (meq.l-1), and ph. it was verified that the systems espaldeira, lira and pergola promoted the highest mass averages and shoot number in both varieties. the conduction system pergola and simple string triggered certain precocity in both varieties. the descending load promoted by the simple string induced a lower shoot growth. the conduction systems were similar for the variable production/plant for the cultivars 'niagara rosada,'while for 'folha de figo'the lira was higher. in the general, the systems of conduction lira and espaldeira showed vines with higher productivities for the analyzed cultivars. and the vines from the simple string and pergola systems produced fruits with better quality for both cultivars.
Efeitos de retardadores de crescimento na frutifica??o da videira 'Niagara Rosada'
Castro, Paulo R. C.;Ferraz, Eduardo C.;Awad, Marcel;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1974, DOI: 10.1590/S0071-12761974000100030
Abstract: studies were carried out to establish the effects of exogenous growth regulators on vitis (labrusca x vinifera) 'niagara rosada' fruiting. the investigations were done in the jundiaí research station, agronomic institute state of s?o paulo, always using disease-free vineyards of good productivity. the morphological transformations of clusters were studied under the following aspects: weight, length and width of cluster; weight, length average and width average of berries: length average/width average ratio of berries; length and diameter of rachis; width of cluster minus berries; length and diameter of secondary rachis. the yield for the first half of the period from flowering to maturation was first determined. the same characteristics were determined at the time of maturity plus the number of berries, number of seeds, total sugars, total acid, maturity index and reducing sugars in samples of all treatments. the experiment was conducted in order to determine the doses that resulted in the most beneficial effects, always using applications by immersion of the inflorescence. in the experiment was realized applications of (2-chloroethyl) trimethylammonium chloride (ccc) and succinic aeid-2, 2-dimethylhydrazide (sadh) at concentrations of 50, 100, 250, 500, 1000 and 2000 ppm; ccc 500 ppm plus sadh 500 ppm and nontreated, 5 days before flowering, in 1971. the concentrations of ccc applied before flowering did not affect favorably cluster morphology under the conditions of the experiment. application of sadh at 250 ppm before flowering increased the cluster weight and length, berries number and weight, and seed number. in the first yield treatment of 1000 ppm of sadh increased the cluster weight and lenght, berry weight and rachis lenght.
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