46 documents found, page 1 of 5
Physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy
Pereira,Gabriely Pinto; Francisco,Felipe; Maia,Aline José; Botelho,Renato Vasconcelos; Biasi,Luiz Antonio; Carvalho,Ruy Inacio Neiva de; Zanette,FlávioABSTRACT: This study identified physiological and biochemical changes in ‘Fuyu’ persimmon buds during dormancy. Branches were collected between March and August 2015. Dormancy was evaluated by biological testing of isolated node cuttings at 25 °C and a photoperiod of 16 h. The variables analyzed were water content; reducing sugar content; respiratory activity; activity of superoxide dismutase (SOD), catalase (C...
Development, photosynthesis and yield of blueberry cultivar ‘Climax’ growth wit...
Viencz,Thayna; Santana,Kamila; Ayub,Ricardo Antonio; Botelho,Renato VasconcelosABSTRACT: Organic farming techniques gained popularity recently. Despite this increasing demand, there are still many problems, when comparing nutrient sources in organic and conventional farming systems. The study had as objective to evaluate the development of blueberry plants cultivar ‘Climax’ under protected cultivation in a substrate with different proportions of organic material and doses of applied miner...
Conservação pós-colheita de pêssegos com aplicação de revestimentos aditivados ...
Sapelli,Karla Siebert; Faria,Cacilda Márcia Duarte Rios; Botelho,Renato VasconcelosResumo O objetivo do presente estudo foi verificar o potencial da aplicação de revestimentos à base de fécula de mandioca (F), aditivados de extrato (E) de erva-mate (Ilex paraguariensis St. Hill), na conservação pós-colheita de pêssegos. Foram utilizados frutos cv. Della Nona e os tratamentos aplicados foram: frutos sem revestimento (Testemunha), frutos com revestimentos à base de fécula de mandioca aditivados...
Óleos essenciais no controle de Botrytis cinerea: influência na qualidade pós-c...
Garcia,Carla; Rodrigues,João Domingos; Mazaro,Sergio Miguel; Botelho,Renato Vasconcelos; Faria,Cacilda Márcia Duarte RiosResumo Para que ocorra o controle de doenças na pós-colheita de uvas, são utilizados agroquímicos que, apesar de eficientes, podem causar problemas à saúde humana. Neste sentido, o presente trabalho tem o objetivo de verificar o potencial dos compostos voláteis presentes no óleo essencial de pitanga (OEP), guaçatonga (OEG) e melaleuca (OEM) no controle de Botrytis cinerea tanto in vitro quanto inoculados nas ba...
Fruit set and yield of apple trees cv. Gala treated with seaweed extract of asc...
Ayub,Ricardo Antonio; Sousa,Anelise Marques de; Viencz,Thayna; Botelho,Renato VasconcelosAbstract The low effective fruiting is one of the biggest problems of apples’ production in Brazil and its main cause involves the process of pollination. The objective was to evaluate the fruit set and production of apple trees cv. Gala treated with extract of seaweed Ascophyllum nodosum and thidiazuron. The experiment was carried out during two cycles (2015/2016 and 2016/2017) in Porto Amazonas, State of Para...
Soil cover management: initial development of pear trees hosui cultivar and its...
Delonzek,Edina Costa; Botelho,Renato Vasconcelos; Muller,Marcelo Marques Lopes; Maciel,Cleber Daniel de Goes; Maia,Aline JoséAbstract Soil management is a practice that influences the development of fruit trees. In this sense, the objective of this study was to evaluate the effect of different soil cover/mulching types on weed control and on the early development of pear trees Hosui cultvar. The experiment was conducted in two consecutive cycles: 2015/2016 and 2016/2017. Treatments consisted of the following soil covers in pear tree ...
Defoliation, application of S-ABA and vegetal extracts on the quality of grape ...
Pessenti,Isabela Leticia; Ayub,Ricardo Antonio; Botelho,Renato VasconcelosAbstract High rainfall and low temperatures can cause grapes not to reach adequate maturation indexes. The aim of this work was to evaluate the effect of leaf removal, hormonal regulator and vegetable extracts on the quality of grape and wine. An experiment was conducted in a vineyard of Malbec cv.in southern Brazil by two consecutive seasons. Treatments were: 1) control, 2) manual defoliation in early maturati...
Desenvolvimento, fisiologia e ocorrência de míldio em videiras cv. BRS Margot t...
Piva,Rafael; Botelho,Renato Vasconcelos; Lima,Patrícia Carla Giloni de; Rombolà,Adamo DomenicoO objetivo deste trabalho foi avaliar o desenvolvimento, a fisiologia e a resistência ao míldio de videiras cv. BRS Margot tratadas com preparados biodinâmicos em estufa. Utilizou-se o delineamento experimental inteiramente casualizado com três tratamentos e dez repetições. Os tratamentos foram: 1) testemunha aplicação de água na parte aérea; 2) tratamento orgânico - aplicação de quitosana (Fish Fértil® 200 mL....
Compostos bioativos e atividade antirradicalar em farinhas de bagaço de uvas de...
Bennemann,Gabriela Datsch; Botelho,Renato Vasconcelos; Torres,Yohandra Reyes; Camargo,Luciana Alves; Khalil,Najeh Maissar; Oldoni,Tatiane Luiza CadorinResumo Este estudo objetivou caracterizar compostos bioativos e atividade antirradicalar em farinhas de bagaços de uvas das cultivares Cabernet Sauvignon, Merlot, Sauvignon Blanc e Sangiovese (Vitis vinifera), desidratados em estufa de circulação de ar a 45 °C ou liofilizador a vácuo. Foram analisados compostos fenólicos totais e individuais, antocianinas monoméricas e atividade antirradicalar pelos métodos ABT...
Antimicrobial activity of Agaricus brasiliensis on Plasmopara viticola and its ...
Garcia,Carla; Faria,Cacilda Márcia Duarte Rios; Santa,Herta Stutz Dalla; Botelho,Renato Vasconcelos; Maia,Aline JoséABSTRACT: Agaricus brasiliensis include bioactive compounds that can act as antibiotics, bacteriostatic, fungistatic and nematostatic substances. In this sense, this study aimed to evaluate the effect of a single application of aqueous mycelial suspension (AMS) of A. brasiliensis in control of downy mildew (Plasmopara viticola) and resistance induction in ‘Isabel Precoce’ grapevines under greenhouse conditions....