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Search Results: 1 - 10 of 32625 matches for " Ivar Antonio;Marodin "
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Aplica??o de auxinas e incis?o anelar de ramos em pessegueiros cv. Diamante
Sartori, Ivar Antonio;Marodin, Gilmar Arduino Bettio;
Revista Brasileira de Fruticultura , 2003, DOI: 10.1590/S0100-29452003000100003
Abstract: the peach industry is of great economic importance in southern brazil. the state of rio grande do sul is the major peach producer in the country. about 50% of the production areas of the state are located in its southern half. the main problem of peach production is the very concentrated harvest season. fruit size is also a problem. therefore the objectives of the present work were to increase fruit size and to spread the harvesting period of peaches cv. diamante by the application of 3,5,6-tricloro-2-piridil-oxiacetic acid (3,5,6-tpa; free acid and amine alcohol) or 2,4-diclorofenoxipropionic acid (2,4-dp; ester) as well as associate these chemicals with and without ringing of branches. the evaluations were performed in the season 1999/2000 on plants at the experimental agricultural station of federal university of rio grande do sul, located in eldorado do sul, latitude 30o39's, longitude of 51o06'w and altitud of 46 meters. the following treatments were applied in a randomized block design with 4 replications and one plant as experimental unit: 1) 10 mg.l-1 of 3,5,6-tpa amine alcohol 2) 20 mg.l-1 of 3,5,6-tpa amine alcohol 3) 30 mg.l-1 of 3,5,6-tpa amine alcohol 4) 20 mg.l-1 of 3,5,6-tpa, amine alcohol plus ringing of branches; 5) 30 mg.l-1 of 3,5,6-tpa free acid; 6) 30 mg.l-1 of 3,5,6-tpa free acid plus ringing of branches; 7) 25 mg.l-1 of 2,4-dp; 8) 50 mg.l-1 of 2,4-dp; 9) 75 mg.l-1 of 2,4-dp; 10) 50 mg.l-1 of 2,4-dp plus ringing of branches; 11) ringing of branches in september and 12) control, with no treatment at all. auxin application does not increase total fruit production of peach trees. however, auxin treatments, specially 3,5,6-tpa free acid, anticipated peach harvest for about 20 days in comparison to control trees. the treatments with 30 mg.l-1 of 3,5,6-tpa free acid result in increments of diameter and length in comparison to, but are not significantly diffent from all other treatments. the treatments 20 mg.l-1 of 3,5,6-tpa amine alcohol and 75 mg.l-
Aplica o de auxinas e incis o anelar de ramos em pessegueiros cv. Diamante
Sartori Ivar Antonio,Marodin Gilmar Arduino Bettio
Revista Brasileira de Fruticultura , 2003,
Abstract: O cultivo de pessegueiros é uma atividade de grande importancia econ mica no Sul do Brasil, onde se destaca o Estado do Rio Grande do Sul como grande produtor brasileiro, sendo que 50% dos pomares se encontram na Metade Sul do Estado. Um dos principais problemas do pessegueiro é o tamanho dos frutos e a produ o em épocas concentradas que dificultam a comercializa o. Com o intuito de aumentar o tamanho e expandir o período de colheita do fruto, estudou-se o efeito de aplica es de auxinas e da execu o da incis o anelar (I.A.) em ramos do pessegueiro 'Diamante'. A avalia o foi realizada no ano agrícola de 1999-2000, na Esta o Experimental Agron mica da Universidade Federal do Rio Grande do Sul (UFRGS), situada em Eldorado do Sul-RS, na latitude 30o39'S, longitude 51o06'W e a altitude de 46 metros. O delineamento experimental foi em blocos casualizados, com quatro repeti es e uma planta por parcela, com os seguintes tratamentos: 1) 10 mg.L-1 3,5,6-TPA álcool amina; 2) 20 mg.L-1 3,5,6-TPA álcool amina; 3) 30 mg.L-1 3,5,6-TPA álcool amina; 4) 20 mg.L-1 3,5,6-TPA álcool amina + (I.A.); 5) 30 mg.L-1 3,5,6-TPA ácido livre; 6) 30 mg.L-1 3,5,6-TPA ácido livre + (I.A.); 7) 25 mg.L-1 2,4-DP éster; 8) 50 mg.L-1 2,4-DP éster; 9) 75 mg.L-1 2,4-DP éster; 10) 50 mg.L-1 2,4-DP éster + (I.A.); 11) Incis o Anelar (I.A.) e 12) Testemunha. Os resultados demonstraram que os tratamentos com auxinas e (I.A.) n o aumentaram o peso total de frutos por planta. Os tratamentos com auxinas, especialmente o 3,5,6-TPA 30 mg.L-1 ácido livre, com (I.A.) ou n o, anteciparam a colheita em cerca de 20 dias. O tratamento com 30 mg.L-1 de 3,5,6-TPA ácido livre, associado à incis o anelar, resultou em incrementos de diametro e comprimento dos frutos em rela o à testemunha, porém n o diferiu estatisticamente dos demais tratamentos. Os tratamentos 3,5,6 TPA 20 mg.L-1 e 2,4 DP (éster) 75 mg.L-1 anteciparam a colheita em 20 dias e n o diferiram estatisticamente do tratamentos 30 mg.L-1 3,5,6 TPA ácido livre. A distribui o dos frutos de primeira categoria foi superior para os tratamentos 30 mg.L-1 3,5,6 TPA ácido livre + (I.A.) e 20 mg.L-1 de 3,5,6-TPA (álcool amina), embora n o diferindo estatisticamente da testemunha.
Aplica??o de auxinas e incis?o anelar em pessegueiros cv. sentinela
Sartori, Ivar Antonio;Guerra, Denis Salvati;Marodin, Gilmar Arduino Bettio;
Ciência Rural , 2003, DOI: 10.1590/S0103-84782003000200011
Abstract: with the objective of advancing crop and increasing the final size of the fruit of cultivating of peach tree sentry in the area of the central depression of rs, applications of two synthesis auxin were accomplished 3,5,6 -tpa (acid 3,5,6 - tricloropiridiloxiacético) and 2,4-dp (acid 2,4-diclorofenoxipropi?nico) and the use of the incision to pant in branches. the evaluation was accomplished among the agricultural years of 1998 and 1999, in the agronomic experimental station of the federal university of rio grande do sul (ufrgs), located in eldorado of the south, rs to the latitude 30°39's and longitude 51°06'w. the experimental design was of blocks randomized with four repetitions and treatments: 1) 3,5,6-tpa 10 mg l-1; 2) 3,5,6-tpa 20 mg l-1; 3) 3,5,6-tpa 30 mg l-1; 4) 3,5,6-tpa 20 mg l-1 + inis?o to pant; 5) 2,4-dp 25 mg l-1; 6) 2,4-dp 50 mg l-1; 7) 2,4-dp 75 mg l-1; 8) 2,4-dp 50 mg l-1 + anelamento; 9) incision to pant and 10) witness. the treatments were made in the phase of lignification of the endocarp - stadium ii - in the days in plants previously submitted to the manual fruit thinning on the 17/09/99. already for the treatments with auxins, especially 3,5,6 tpa 20 mg l-1 with incision to pant or they didn't advance the crop about 15 days. the treatments did not affect the quality of the fruits in terms of pulp firmness. the tenor of total soluble solids (tenor of sugar) in a way not very egg white, not evidencing to your influences in the tenor of sugar of the fruit.
Efeito da aplica??o de cianamida hidrogenada e óleo mineral na quebra de dormência e produc?o do pessegueiro-'Flamecrest'
MARODIN, GILMAR ARDUINO BETTIO;SARTORI, IVAR ANTONIO;GUERRA, DENIS SALVATI;
Revista Brasileira de Fruticultura , 2002, DOI: 10.1590/S0100-29452002000200029
Abstract: with the objective of increasing yields and fruit quality of cv. flamecrest peaches, a cultivar with high chilling units demand, the present experiment was conducted in an orchard near to the farroupilha city, in the year 2000. the hidrogen cyanamid and mineral oil were applied in two different times: middle of july and begining of august. the dormancy breaking, flowering, fruit set, yield, and antecipation of harvest were evaluated from plants of the folllowing treatments: 1,22; 2,45; 3,675 or 4,90 g of i.a.l-1 hydrogen cyanamid together with 10 g i.a l-1 of mineral oil or a single application of 10 g i.a l-1 mineral oil. the control plants were not sprayed with the dormancy breaking treatment. none of the treatments resulted in sprouting antecipation of flowering buds however, plants treated with 1,22 or 4,90 g i.a l-1 hydrogen cyanamid mixed with 10 g i.a l-1 mineral oil, had a higher number of sprouted vegetative buds. there was no significant effect of the period of application on flowering and fruit set. the number of fruits thinned out from each plant was higher for the treatments with 2,45 or 4,90 g i.a l-1 of hydrogen cyanamid mixed with 10 g i.a l-1 of mineral oil. when applied to peaches trees in july, the treatments with 1,22 and 3,675 g i.a. l-1 of hydragen cyanamid and 10 g i.a. l-1 of mineral oil resulted in a higher number of fruits and total yield per plant. all the treatments, in the second apllication period, produced higher yields. the average fruit weight, total soluble solids and pulp firmness were not influenced by the treatments.
Efeito da aplica o de cianamida hidrogenada e óleo mineral na quebra de dormência e produc o do pessegueiro-'Flamecrest'
MARODIN GILMAR ARDUINO BETTIO,SARTORI IVAR ANTONIO,GUERRA DENIS SALVATI
Revista Brasileira de Fruticultura , 2002,
Abstract: Com o objetivo de aumentar a produ o e qualidade de frutos do pessegueiro- 'Flamecrest', de alta exigência em frio, realizou-se um experimento no Município de Farroupilha-RS, no ano de 2000, com o uso de cianamida hidrogenada e óleo mineral. Estudou-se o efeito de duas diferentes épocas de aplica o dos tratamentos (15-7 e 2-8) sobre a brota o, flora o, frutifica o, produ o e antecipa o de colheita. Foram testados os efeitos dos seguintes tratamentos: cianamida hidrogenada (C.H.) 1,22; 2,45; 3,675 e 4,90 g de i.a.L-1 com óleo mineral (O.M.) 10 g de i.a.L-1; O.M. 10 g de i.a.L-1 isolado e testemunha (sem pulveriza o). Os tratamentos n o anteciparam a brota o das gemas floríferas, porém C.H. 2,45 e 4,90 g de i.a.L-1 com O.M. a 10 g de i.a.L-1 proporcionaram plantas com maior brota o das gemas vegetativas. N o houve efeito marcante dos tratamentos sobre a flora o e a porcentagem de frutos vingados nas duas épocas. O número de frutos raleados por planta foi superior para os tratamentos com C.H. 2,45 e 4,90 g de i.a.L-1 com O.M. 10 g de i.a.L-1 quando aplicados na segunda época. Já, para o número e massa total dos frutos colhidos, destacaram-se, na primeira época (15-7), os tratamentos com C.H. 1,22 e 3,675 g de i.a.L-1 + O.M. 10 g de i.a.L-1 e, na segunda época (2-8), os tratamentos com C.H. 2,45 e 4,90 g de i.a.L-1 + O.M. 10 g de i.a.L-1. Os tratamentos da segunda época resultaram em produ es médias superiores à primeira. A massa média dos frutos n o foi alterada de forma clara pelos tratamentos, assim como o teor de sólidos solúveis totais e a resistência de polpa.
Aplica o de auxinas e incis o anelar em pessegueiros cv. sentinela
Sartori Ivar Antonio,Guerra Denis Salvati,Marodin Gilmar Arduino Bettio
Ciência Rural , 2003,
Abstract: Com o objetivo de antecipar e/ou aumentar o tamanho dos frutos, do pessegueiro "Sentinela" na regi o da Depress o Central do RS, com intuito de evitar o pico de produ o em um curto período de tempo, foram realizadas aplica es de duas auxinas de síntese 3,5,6 -TPA (ácido 3,5,6- tricloropiridiloxiacético) na formula o ácido livre e 2,4-DP (ácido 2,4-diclorofenoxipropi nico) na formula o éster e o uso da técnica da incis o anelar em ramos. A avalia o foi realizada no ano de 1998, na Esta o Experimental Agron mica da Universidade Federal do Rio Grande do Sul (UFRGS), situada em Eldorado do Sul, RS, à latitude 30degrees39'S e longitude 51degrees06'W. O delineamento experimental foi de blocos casualizados com quatro repeti es e uma planta por parcela. Os tratamentos foram efetuados na fase de lignifica o do endocarpo - estádio II - no dia 17/09/99, em plantas previamente submetidas ao raleio manual de frutos: 1) 3,5,6-TPA 10 mg L-1; 2) 3,5,6-TPA 20 mg L-1; 3) 3,5,6-TPA 30 mg L-1; 4) 3,5,6-TPA 20 mg L-1 + incis o anelar; 5) 2,4-DP 25 mg L-1; 6) 2,4-DP 50 mg L-1; 7) 2,4-DP 75 mg L-1; 8) 2,4-DP 50 mg L-1 + incis o anelar; 9) Incis o anelar e 10) Testemunha. Os tratamentos com auxinas e incis o anelar n o aumentaram o peso total de frutos por planta, nem o peso médio dos frutos, mas os tratamentos com auxinas, especialmente o 3,5,6 TPA 20 mg L-1, com incis o anelar ou n o, anteciparam a matura o em cerca de 15 dias. Os tratamentos n o afetaram a qualidade dos frutos em termos de firmeza de polpa. O teor de sólidos solúveis totais n o foi afetado de forma evidente pela aplica o das duas auxinas e uso da técnica da incis o anelar em ramos.
Efeito da poda, raleio de frutos e uso de fitorreguladores na produ??o de tangerinas (Citrus deliciosa Tenore) cv. montenegrina
Sartori, Ivar Antonio;Koller, Otto Carlos;Theisen, Sergiomar;Souza, Paulo Vitor Dutra de;Bender, Renar Jo?o;Marodin, Gilmar Arduino Bettio;
Revista Brasileira de Fruticultura , 2007, DOI: 10.1590/S0100-29452007000100004
Abstract: the experiment had the purpose to evaluate the effects of pruning, hand thinning and growth regulators sprays to decrease the production alternation and increase the physic-chemical quality of 'montenegrina' mandarin oranges (citrus deliciosa tenore). they are plants budded on 'caipira' orange (citrus sinensis l. osbeck), and the present study was conducted in a six-year-old commercial orchard, in panoramas citrus company, located in butiá-rs, southern of brazil (29o57's - 51o40'w). the following treatments were applied: a) control 1, trees with heavy fruit load; b) control 2, trees without bearing fruits; c) hand thinning of 66% of the fruits on heavy loaded trees, in february; d) 200 mg l-1 ethrel sprays of heavy loaded trees; e) pruning of heavy loaded trees in december; f) pruning of heavy loaded trees plus hand thinning in 33% of the fruit; g) pruning of heavy loaded trees plus 50 mg l-1 of 2,4-dp sprays (95% of 2,4 dichlorofenoxipropionic), at the end of the natural fruit fall in december; h) pruning of alternate bearing trees in december; i) pruning of alternate bearing trees plus 10 mg l-1 ga3 giberelic acid sprays (10% of ag3) in may. the treatments were applied in a randomized blocks design with 4 replicates and 3 plants as experimental unit. pruning decreased the production in each plant in a year of excessive fruit quality, and diminished the alternate bearing of trees associated to the hand thinning practice of 33% of the fruits. in alternate plants, the hand thinning was more efficient to break the production alternation. hand thinning and pruning of 66% increases the mean mass and better the fruit quality, but the hand thinning of 66% of the fruits was only enough to break the production alternation. ethephon sprays showed no thinning effect with concentrations of 200 mg l-1 and 10 mg l-1 of ga3 sprays didn't inhibit bud flower differentiation and 50 mg l-1 2,4-dp sprays have no effect on increasing fruit size.
CIANAMIDA HIDROGENADA, THIDIAZURON E óLEO MINERAL NA QUEBRA DA DORMêNCIA E NA PRODU??O DO PESSEGUEIRO cv. CHIRIPá
NUNES, JOSé LUIS DA SILVA;MARODIN, GILMAR ARDUINO BETTIO;SARTORI, IVAR ANT?NIO;
Revista Brasileira de Fruticultura , 2001, DOI: 10.1590/S0100-29452001000300008
Abstract: the present work was conducted in 1999, at the esta??o experimental agron?mica of the universidade federal do rio grande do sul, located in the county of eldorado do sul, rio grande do sul, latitude 30o05'52"s, longitude 51o39'08" w and altitude at 46 meters. were tested the effects of the hydrogen cyanamide (h.c.) and mineral oil (m.o.) in mixture, mineral oil (m.o.) and thidiazuron (tdz) with mineral oil (m.o.), on bud break, yield and anticipation of the crop. trees were spayde at bud stage a. the following treatments were tested: h.c. 0,5%, 1,0% and 1,5% + m.o. 1,0%, m.o. 1,0% and 2,0%, tdz 200 and 400 ppm + m.o. 2,0% and control (without any spray). the treatments did not result in anticipation of the bud burst. the treatment h.c. 1,5% and m.o. 1,0% provided enough yield to make possible the cultivation of "chiripá" in mild winters conditions, but there was not significant difference in fruit weight. tdz, at the tested concentrations, was not efficient to break the dormancy of this cultivar. no effect or crop anticipation was observed.
CIANAMIDA HIDROGENADA, THIDIAZURON E óLEO MINERAL NA QUEBRA DA DORMêNCIA E NA PRODU O DO PESSEGUEIRO cv. CHIRIPá
NUNES JOSé LUIS DA SILVA,MARODIN GILMAR ARDUINO BETTIO,SARTORI IVAR ANT?NIO
Revista Brasileira de Fruticultura , 2001,
Abstract: Este trabalho foi realizado no ano de 1999, na Esta o Experimental Agron mica da Universidade Federal do Rio Grande do Sul, localizada no município de Eldorado do Sul, Estado do Rio Grande do Sul, latitude 30°05'52" S, longitude 51°39'08" W e altitude de 46 metros. Foram testados os efeitos da Cianamida Hidrogenada (C.H.) e óleo Mineral (O.M.) em mistura, óleo Mineral (O.M.) e Thidiazuron (TDZ) com óleo Mineral (O.M.), sobre brota o, frutifica o, produ o e antecipa o de colheita. Os tratamentos foram aplicados quando as plantas estavam no estádio fenológico A. Foram testados os seguintes tratamentos: C.H. 0,5%, 1,0% e 1,5% + O.M 1,0%, O.M. 1,0% e 2,0%, TDZ 200 e 400 ppm + O.M. 2,0% e testemunha (sem pulveriza o). Os tratamentos n o anteciparam a brota o das gemas vegetativas. O tratamento C.H. 1,5% com O.M. 1,0% proporcionou produ o suficiente para viabilizar o cultivo do "Chiripá" em condi es de inverno ameno, mas n o houve diferen as significativas no peso médio dos frutos. O TDZ, nas dosagens testadas, n o se mostrou eficiente na quebra de dormência desta cultivar. N o houve efeito na antecipa o da colheita.
Anelamento e incis?o anelar em fruteiras de caro?o
Sartori, Ivar Antonio;Ilha, Luciano Larruscahim Hamilton;
Ciência Rural , 2005, DOI: 10.1590/S0103-84782005000300040
Abstract: growing peaches is of high economic importance in south of brazil and the state of rio grande do sul is the biggest brazilian producer. largest part of the orchards are located in the southern half. one of the main problems of peach production for fresh consumption in this area is the reduced size of the fruits. another problem is the short harvesting window, which brings difficulties to commercialization. girdling and/or ringing of branches might be used to increase fruti size and eventually extend the harvesting period. the present review intends to gather data regarding the most adequate period to apply treatments, to understand the physiological aspects and problems associated with these practices on stone fruit trees. girdling and ringing of stone fruit trees might be useful to improve quality and anticipate harvest period of early ripening cultivars. it is necessary to conduct local studies for different species and cultivars. recomendations should be specific for each situation and girdling and ringing together with other pratices to induce early ripening might help to anticipate harvest and ameliorate organoleptic of the fruit.
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