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Registros recuperados: 7
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Apple biological and physiological disorders in the orchard and in postharvest according to production system Rev. Bras. Frutic.
Martins,Carlos Roberto; Hoffmann,Alexandre; Rombaldi,Cesar Valmor; Farias,Roseli de Mello; Teodoro,Adenir Vieira.
The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apple tree; Malus domestica; Organic production; Integrated production.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000100001
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Cultivable bacteria isolated from apple trees cultivated under different crop systems: Diversity and antagonistic activity against Colletotrichum gloeosporioides. Repositório Alice
PASSOS, J. F. M. dos.; COSTA, P. B. da.; COSTA, M. D.; ZAFFARI, G. R.; NAVA, G.; BONETI, J. I.; OLIVEIRA, A. M. R. de.; PASSAGLIA, L. M. P..
2014
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Plant growth-promoting bacteria; Apple tree; Antagonistic activity; Colletotrichum gloeosporioides.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1029560
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Cultivable bacteria isolated from apple trees cultivated under different crop systems: Diversity and antagonistic activity against Colletotrichum gloeosporioides Genet. Mol. Biol.
Passos,João Frederico M. dos; Costa,Pedro B. da; Costa,Murilo D.; Zaffari,Gilmar R.; Nava,Gilberto; Boneti,José Itamar; Oliveira,Andréia Mara R. de; Passaglia,Luciane M.P..
This study evaluated the diversity of cultivable plant growth-promoting (PGP) bacteria associated with apple trees cultivated under different crop management systems and their antagonistic ability against Colletotrichum gloeosporioides. Samples of roots and rhizospheric soil from apple trees cultivated in organic and conventional orchards in southern Brazil were collected, together with soil samples from an area never used for agriculture (native field). Bacteria were identified at the genus level by PCR-RFLP and partial sequencing of the 16S rRNA, and were evaluated for some PGP abilities. The most abundant bacterial genera identified were Enterobacter (27.7%), Pseudomonas (18.7%), Burkholderia (13.7%), and Rahnella (12.3%). Sixty-nine isolates presented...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant growth-promoting bacteria; Apple tree; Antagonistic activity; Colletotrichum gloeosporioides.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400013
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Managing fruit abscission in apple. Repositório Alice
ROBINSON, T. L.; LAKSO, A. N.; GREENE, D.; REGINATO, G.; RUFATO, A. de R..
Abstract Apple trees naturally set many more fruits than desired thus requiring active crop load management to achieve optimum fruit size and to ensure adequate return bloom. Chemical thinning is the primary method used to reduce crop load but despite 50 years of experience, it remains an unacceptably unpredictable part of apple production with large variation from year to year and within years. Our research suggests the variability in chemical thinner efficacy is related both to stage of fruit development and carbohydrate availability to support fruit growth. There is low sensitivity to chemical thinners when fruits are small at petal fall (about 4 mm diameter) followed by high sensitivity of rapidly growing fruits between 8-15 mm and then low sensitivity...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Malus × domestica; Preharvest fruit drop; Chemical thinning; Precision crop load management; Maçã; Malus domestica; Maca; Macieira; Apple; Fruit abscission; Apple tree.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1063923
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MORTALITY OF APPLE LEAFROLLER EXPOSED TO DIFFERENT Bacillus thuringiensis SUBSPECIES IN ARTIFICIAL DIET, IN THREE ASSESSMENT PERIODS Rev. Bras. Frutic.
Pereira,Jonathan; Monteiro,Lino Bittencourt; Gómez,Daniel Ricardo Sosa.
ABSTRACT Bioinsecticides based on Bacillus thuringiensis are the entomopathogen most marketed worldwide. The aim of this study was to evaluate the bioactivity of kurstaki, aizawai subspecies and kurstaki x aizawai hybrid on B. salubricola larvae fed on artificial diet in different assessment periods. Mortality was assessed on the seventh, tenth and fifteenth days after treatment. Microplates containing 150 µl of diet in each cell were used. Suspensions containing Bt subspecies was deposited on the surface of the diet, then neonate larvae were released. The mortality assessment performed after fifteen days of treatment was significant for all three subspecies. Bt kurstaki was more efficient in all assessment periods, except for fifteen days, which was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bonagota salubricola; Apple tree; Entomopathogen.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100403
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Oviposition behavior of Grapholita molesta Busck (Lepidoptera: Tortricidae) at different temperatures Neotropical Entomology
Silva,EDB da; Kuhn,TMA; Monteiro,LB.
Cultivation of temperate-climate fruits is economically important for Brazil. Grapholita molesta Busck is a pest that causes damage to apples, peaches, plums, and pears growing in different micro-regions of southern Brazil, and understanding its reproductive behavior is essential to develop control strategies. The objective of this study was to ascertain the influence of different temperatures (13, 16, 19, 22, and 25ºC) on the oviposition behavior of G. molesta. Females of G. molesta were placed in individual plastic containers, and the pre-oviposition period and the number of eggs laid were assessed until adult death. Temperature influenced the pre-oviposition period, and females kept at 22º were the first to lay their eggs. Oviposition occurred over a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apple tree; Fecundity; Oriental fruit moth; Pre-oviposition period.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000400001
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The effect of different training systems on vegetative and productive performance of apple trees cultivar 'maxigala' - in southern Brazil. Repositório Alice
SANDER, G. F.; MACEDO, T. A. de; ARRUDA, R. de.; MAGRO, M.; RUFATO, A. de R.; RUFATO, l.; KRETZSCHMAR, A. A..
2016
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: M9 rootstock; Fruit production; Tall spindle; Salaxe; Vertical axis; Apple tree; Maxigala; Apple tree cultivar maxgala; Southern Brazil.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1053876
Registros recuperados: 7
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