|
|
|
|
|
| Farias,Roseli de Mello; Barreto,Caroline Farias; Zandoná,Renan Ricardo; Martins,Carlos Roberto; Mello-Farias,Paulo; Marodin,Gilmar Arduino Bettio. |
| Abstract: The objective of this work was to evaluate the effect of thinning with metamitron on the fruit yield and quality of 'BRS Kampai' peach (Prunus persica) trees. The experiment was carried out in the municipality of Eldorado do Sul, in the state of Rio Grande do Sul, Brazil, in the 2016 and 2017 crop years. Treatments consisted of the application of 100, 200, 300, and 400 mg L-1 metamitron and of hand thinning 40 days after full bloom, besides control plants. Fruit abscission, effective fructification, number of fruits, and fruit yield per plant were evaluated. Regarding fruit quality, fresh fruit biomass, epidermis color, pulp firmness, soluble solids, total phenolic compounds, and antioxidant activity were assessed; fruits were also classified... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prunus persica; Abscission; Fruit quality; Hand thinning; Metamitron. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102705 |
| |
|
|
| Lerin,Sabrina; Grohs,Daniel Santos; Almança,Marcus André Kurtz; Botton,Marcos; Mello-Farias,Paulo; Fachinello,José Carlos. |
| Abstract: The objective of this work was to prepare a prediction model for the phenology of grapevine cultivars (Bordô, Cabernet Sauvignon, Moscato Embrapa, Paulsen 1103, SO4, and IAC 572) using hot water treatment. The heat treatment with hot water consisted of combinations of three temperatures (50, 53, and 55°C) and three time periods (30, 45, and 60 min), with or without previous hydration for 30 min. After the treatments, the cuttings were planted in the field and their phenological development was evaluated during two months. The six studied cultivars presented different responses to the effects of the factors temperature and time, but did not differ significantly regarding hydration. It was possible to develop a mathematical model for the use of hot... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis; Cultural treatments; Fruticulture; Grapevine trunk diseases; Production of seedlings; Vegetative development. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000887 |
| |
|
|
| Farias,Roseli de Mello; Martins,Carlos Roberto; Barreto,Caroline Farias; Giovanaz,Marcos Antônio; Malgarim,Marcelo Barbosa; Mello-Farias,Paulo. |
| Abstract In the peach tree cultivation, the producer has the challenge of obtaining good quality fruits and maintaining production in a balanced way over the years. Thinning favors these parameters and reduces the fruit load on plants. Manual thinning commonly practiced on peach trees requires high labor and increases production costs. Chemical thinning as an alternative to manual thinning, which depending on the species, time and concentration, has demonstrated high efficiency. The aim of this study was to evaluate the effect of metamitron applied at different seasons and concentrations on the chemical thinning of peach trees in southern Brazil. Experiments were conducted in a commercial peach orchard (‘Maciel’ cultivar), in the municipality of Morro... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit establishment; Stone fruits; Fruit abscission; Fruit set. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000400201 |
| |
|
|
| Silva,Pricila Santos da; Kirinus,Marines Batalha Moreno; Barreto,Caroline Farias; Lamela,Carlos Sebastián Pérez; Malgarim,Marcelo Barbosa; Mello-Farias,Paulo. |
| Abstract The ripening of grapes is impaired by climatic conditions due to the prolonged rainy season and thus facilitates the proliferation of diseases such as grape clusters rotting, caused by the fungus Botrytis cinerea, even before the ideal harvesting point. The aim of the study was to evaluate the effect of gibberellic acid (GA3) on rot and on physical-chemical quality of ‘Sauvignon Blanc’ grapevine. The experiment was carried out in the production season of 2016 and 2017 in Campanha region in Rio Grande do Sul, Brazil. The GA3 treatments were at the doses of 0 (control); 2; 4; 6 and 8 mg L-1 of GA3. The percentage of clusters rotting and maturation index decreased, however, the titratable acidity increased with GA3 doses. The cluster and rachis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gibberellin; Grapevines; Cluster stretching. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000400402 |
| |
|
|
| Santos,Rodrigo Fernandes dos; Marques,Léo Omar Duarte; Mello-Farias,Paulo; Martins,Carlos Roberto; Konzen,Luis Henrique; Carvalho,Ivan Ricardo; Malgarim,Marcelo Barbosa. |
| ABSTRACT Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in the demand for their fruits. Hydrogenated cyanamide, which is the most common rest-breaking agent, is highly toxic and its use is not allowed in organic production systems. This study aimed at evaluating the efficiency of alternative rest-breaking agents in kiwifruit vines by using the biological method of single node cutting. Twigs of the cultivar Bruno were collected in an organic orchard in Pelotas, a city located in Rio Grande do Sul state, Brazil. Seven-centimeter-long cuts with a single shoot at the ends were segmented. Cuttings were placed on plastic trays with phenolic foam and soaked in water, at 85% relative humidity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Actinidia deliciosa; Sustainability; Ecophysiology; Adaptation; Mild winter. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020005004201 |
| |
|
|
|
