Consulta: subjectFacets:"Abscission"
Registros recuperados: 8
Data/hora: 03/06/2024 18:57:10

Chemical thinning of 'BRS Kampai' peach trees
Provedor de dados: 86
Autores: 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

Abscisic acid as a potential chemical thinner for peach
Provedor de dados: 86
Autores: Giovanaz,Marcos Antônio; Spagnol,Daniel; Bartz,Josiane; Pasa,Mateus da Silveira; Chaves,Fabio Clasen; Fachinello,José Carlos.
Abstract:The objective of this work was to evaluate the effect of abscisic acid, applied at different rates and different fruit developmental stages, on the thinning of 'Chiripá' peach. Abscisic acid (ABA) at 500 mg L-1 was applied at three stages of fruit development based on lignin deposition: stage 1, at 24 days after full bloom (DAFB); stage 2, at 40 DAFB; and stage 3, at 52 DAFB. Only ABA application at stage 2 - 40 DAFB - reduced fruit set and the number of fruit per plant. Three ABA concentrations (350, 500, and 750 mg L-1) were then applied at 40 DAFB. All rates increased fruit ethylene production and fruit abscission.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abscission; Pit hardening; Plant growth regulators; Plant hormones; Stone fruit.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001000989

Mechanical damage in cotton buds caused by the boll weevil
Provedor de dados: 86
Autores: Santos,Roseane Cavalcanti; Marcellino,Lucília Helena; Monnerat,Rose Gomes; Gander,Eugen Silvano.
The boll weevil (Anthonomus grandis Boheman) causes high levels of bud abscission in cotton plants due to feeding or oviposition punctures. It has been reported that abscission is mainly due to enzymes present in the insect's saliva, but mechanical damage could also contribute to square abscission. The objective of this paper was to undertake an analysis of the morphological damages caused by the insect in cotton squares using microscopy. Anthers and ovules are the main target of boll weevil feeding. The process initiates by perforation of young sepal and petal tissues and proceeds with subsequent alimentation on stamen and ovary leading to abscission of floral structures.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Anthonomus grandis; Abscission; Animal feeding.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003001100015

Cost/Benefit of Abscission Registration for Citrus Mechanical Harvesting
Provedor de dados: 31
Autores: Blanco,   German; Roka,   Fritz M.
The Florida Department of Citrus (DOC) is spending public funds to register an abscission agent compound (CMNP) with the U.S. EPA as part of its effort to enhance the private benefits associated with citrus mechanical harvesting. An abscission agent application should allow existing harvesting equipment to operate through the entire late season orange harvesting period. When estimating costs and benefits through 2018, the net present value of mechanically harvesting 25,000 acres is between $60.8 and $79.9 million, depending on price, production, and fruit loss scenarios. For any of the scenarios considered, the discounted value of abscission benefits with mechanical harvesting fully pays for the costs of registration and development within four years.
Tipo: Conference Paper or Presentation
Palavras-chave: Abscission; Citrus; Mechanical harvesting; Cost benefit analysis; Agricultural Finance; Q14.
Ano: 2009
URL: http://purl.umn.edu/46753

Low temperature storage of NAA, GA3 and 2,4-D treated citrus budsticks
Provedor de dados: 63
Autores: Salomão,Luiz Carlos Chamhum; Siqueira,Dalmo Lopes de; Lima,Sebastião Fernando Ferreira; Cecon,Paulo Roberto; Dias,José Maria Moreira; Maia,Victor Martins.
Cold storage allows citrus budstick conservation for several months, although gradual bud viability loss and abscission of leaf petioles is observed. This study aimed to maintain bud viability reducing leaf petiole abscission in budsticks of 'Baianinha' and 'Valencia' sweet oranges (C. sinensis Osbeck), 'Tahiti' lime (C. latifolia Tanaka), and 'Murcott' tangor (C. sinensis × C. reticulata), using NAA, GA3, 2,4-D, and low temperature storage. After a 15-minutes-immersion in distilled water and NAA and GA3 solutions at concentrations of 10, 100, 500 and 1000 µmol L-1, and 2,4-D solutions at concentrations of 1, 10, 50 and 100 µmol L-1, the shoots were stored in polyethylene bags at 5 ± 1ºC for 74 days. Percentage of leaf petiole abscission, fresh and dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth regulator; Abscission; Propagation.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400007

Evaluation the mechanical harvesting efficiency of olive with the application of fruit loosening spray
Provedor de dados: 111
Autores: Khdair, Adnan I.; Abu-Rumman, Ghaida; Khdair, Sawsan.
Abstract: Olive is harvested mainly by hand in the Mediterranean. This resulted in steady rising of harvesting cost due to shortage of skilled labors at harvesting time. Operation cost might be reduced and harvesting processes will be carried out on time if mechanical harvesters are used. In 2015 an experiment was performed to study the effects of mechanical harvester and use of loosening agent on harvesting productivity and efficiency. The experiment was conducted using randomized complete block with two regional olive varieties Nabali Rosie and Nabali. Harvesting productivity by hand (hand picking), pneumatic comb and branch shaker machines were evaluated. Ethrel abscission chemical was used two weeks before harvesting as an abscission and loosening...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Olive Mechanical Harvesting; Abscission; Harvest productivity; Removal efficiency; Fruit detachment force.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4743

Longevity of Epidendrum ibaguense inflorescences influenced by the storage temperature and ethylene inhibitor
Provedor de dados: 52
Autores: Santos,Joice Simone dos; Finger,Fernando Luiz; Mapeli,Ana Maria; Karsten,Juliane; Mendes,Teresa Drummond Correia; Barbosa,José Geraldo.
This work had the goal to evaluate the influence of temperature and dry storage on the postharvest longevity of Epidendrum ibaguense flowers previously treated with silver thiosulfate (STS). The flowers were harvested and pulsed for 30 minutes with 2 mM STS. Then both, the STS treated and untreated flowers were packed in perforated low density polyethylene bags, packed in cardboard boxes and stored at 5 and 10°C, where they remained for four and eight days. After this period, the flowers were kept in vase with distilled water at 25ºC, and analyzed at every 24 h. The experiment was arranged in a complete random design 2 x 2 x 2 factorial scheme, with four replicates, containing four inflorescences each, except for the determination of transpiration and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Orchid; Cut flower; Temperature; Abscission.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200004

Physiology of citrus fruiting
Provedor de dados: 61
Autores: Iglesias,Domingo J.; Cercós,Manuel; Colmenero-Flores,José M.; Naranjo,Miguel A.; Ríos,Gabino; Carrera,Esther; Ruiz-Rivero,Omar; Lliso,Ignacio; Morillon,Raphael; Tadeo,Francisco R.; Talon,Manuel.
Citrus is the main fruit tree crop in the world and therefore has a tremendous economical, social and cultural impact in our society. In recent years, our knowledge on plant reproductive biology has increased considerably mostly because of the work developed in model plants. However, the information generated in these species cannot always be applied to citrus, predominantly because citrus is a perennial tree crop that exhibits a very peculiar and unusual reproductive biology. Regulation of fruit growth and development in citrus is an intricate phenomenon depending upon many internal and external factors that may operate both sequentially and simultaneously. The elements and mechanisms whereby endogenous and environmental stimuli affect fruit growth are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic stresses; Abscission; Color break; Flowering; Fruit set; Ripening.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400006