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Reproductive biology in monoecious and gynoecious cucumber cultivars as a result of IBA application Horticultura Brasileira
Diola,Valdir; Orth,Afonso I; Guerra,Miguel P.
The understanding of both the reproductive biology and the regulation of the sexual expression of cucumber flowers (Cucumis sativus) makes crop management easier and can improve fruit yield and quality. The objective of this study was to evaluate the physiological answer of cucumber floral verticils to the application of IBA. The experiment was carried out in a greenhouse, in completely randomized blocks, with four replications of 4-plant plots, and treatments applied to a 5 x 2 factorial (0, 50, 100, 200, and 500 µmol of IBA, and two cultivars: Wisconsin MR28, gynoecious, and Caipira, monoecious). Cultivar Wisconsin MR28 produced in average 7,636 pollen grains (PG) per flower, with a positive linear response to the increase in IBA concentration. Instead,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis sativus; Fecundation; Flowering; Viability pollen; Plant hormones.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362008000100006
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Carbon isotope fractionation for cotton genotype selection PAB
Brito,Giovani Greigh de; Suassuna,Nelson Dias; Diola,Valdir; Sofiatti,Valdinei; Ducatti,Carlos; Silva,Evandro Tadeu da; Morello,Camilo de Lelis.
The objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed-cotton yield in SHGO,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gossypium; Carbon isotope discrimination; Genetic breeding; Phenotyping..
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000900673
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