Efeito Do Ácido Giberélico Nas Características Ampelométricas Dos Cachos De Uva ‘A Dona’ E ‘Marte’

Tecchio, Marco António; Moura, Mara Fernandes; Hernandes, José Luiz; Paioli-Pires, Erasmo José; Terra, Maurilo Monteiro; Leonel, Sarita

doi:10.5380/rsa.v10i4.14800

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…Separate evaluation of the different rootstocks in each cultivar shows a significant effect of the rootstock on the cultivar A Dona only in the number of bunches per vine, in which IAC 572 (76.03 ± 4.06) was superior to SO4 (56.76 ± 10.85). Tecchio et al (2009) observed that A Dona grown on the rootstock IAC 766 in the state of São Paulo had greater bunch weight and berry size than those found in this study, which may be explained by the treatments with gibberellic acid. In contrast, results obtained in the same experimental area by Brito et al (2019) indicate similar values for berry weight, but lower values for bunch weight and titratable acidity than those observed in this study.…”

Section: Resultscontrasting

confidence: 58%

Agronomic performance of table grape cultivars affected by rootstocks in semi-arid conditions

Leão

Oliveira

2023

Bragantia

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The aim of the present study was to investigate the effect of the grape cultivar combined with rootstocks on yield and fruit traits of grapevine in the São Francisco Valley, in the Northeast of Brazil. The experiment was carried out over eight growing seasons (2014 to 2018) in Petrolina, Pernambuco, Brazil. The treatments were represented by five seedless table grape cultivars (A Dona, Arizul, Marroo Seedless, BRS Clara, and BRS Maria Bonita) and six rootstocks (IAC 313, IAC 766, IAC 572, SO4, Harmony, and Paulsen 1103) in a randomized block experimental design with three replicates. Principal component analysis showed that 59.2% of the variation found in the data was related to principal component (PC) 1 (42.76%) associated with the number of bunches and berry weight, length, and diameter variables; and PC 2 (16.4%) correlated with yield per vine. The yield per vine showed a significant positive correlation with number of bunches, bunch length, soluble solids content, and titratable acidity, and showed a negative correlation with berry length. A Dona and Marroo Seedless grapes had the highest yield, regardless of the rootstocks they were grafted onto, whereas BRS Clara had high values for soluble solids content and titratable acidity and a balanced SS/TA ratio. In contrast, BRS Maria Bonita had the lowest yielding grape cultivar, although it had the greatest bunch weight and berry length. The rootstocks affected the agronomic performance of the table grape cultivars in most variables, depending on the effect of different grape cultivars × rootstock combinations.

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Section: Resultscontrasting

confidence: 58%

Agronomic performance of table grape cultivars affected by rootstocks in semi-arid conditions

Leão

Oliveira

2023

Bragantia

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“…The varieties Venus and Mars are American hybrids with early cycles (Camargo 1993;Botelho et al, 2002;Tecchio et al, 2009). Corroborating Borges et al, (2010) grouped into Semi-Arid Brazilian conditions the varieties, Flame Seedless and Fiesta, with 59% similarity in days to complete the cycle.…”

Section: Principal Component Analysis and Upgmamentioning

confidence: 99%

Phenotypic divergence of grapes using productive cycle

Moura¹,

Modesto²,

Dias³

et al. 2018

Aust J Crop Sci

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Classifying vines regarding the number of days required to complete de productive cycle and the duration of intermediate phenologic phases are essential for genetic improvement programs, implementation of cultivation techniques and handling of the grape harvest. The objective of this study was to evaluate the access phenotypic divergence of grapes from the germplasm collection by the Agronomic Institute -IAC. Evaluations were performed for 4 years of production, from 2012 to 2015, when the plants were 4 years old. The training system applied the espalier, at a 2.0 x 1.0 m spacing between lines and plants, respectively. The IAC's grape germplasm collection comprised 110 varieties of the Vitis vinífera, Vitis labrusca species and inter-specific hybrids grafted into the IAC 766 rootstocks, being 3 plants per each variety. After the pruning of the main vine phonologic phases, the number of days was evaluated using the scale proposed by Eichhorn and Lorenz. Two evaluations a week were carried out until the flowering, and afterwards one evaluation was performed a week, the period between pruning and the beginning of sprouting, full flowering with 50% flowers opened, beginning of maturation (veraison) and maturation (harvest), visually mature fruits and content of soluble solids above 14ºBrix. Multivariate analysis, such as the correlation between varieties, analysis of the main components (PCA) and methods of non-weighted arithmetic means (UPGMA) was applied to classify the phenotypes according to the productive cycle. A relation was found between the sprouting and the flowering phases, as well as the starting maturation and maturation. The first two components explained 81% of the total variability, being that the starting maturation and maturation were the best variables to study the divergence of vine phenotypes. Also, combining the UPGMA method and the PCA analysis that distinguished three groups, allowed us to divide the phenotypes into 25 processes, 75 median and 10 late varieties, according to their productive cycle. It was possible to conclude that the techniques used to study the genetic diversity applied to phenologic characters were effective to evaluate the vines phenotypic divergence, and therefore, the multivariate analysis may be used to guide future vine improvement programs.

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“…Exogenous applications of gibberellic acid suppress seminal phytohormone production activity (Tecchio et al, 2009), which is responsible for the formation and distribution of fruit composition through cell division and elongation (Taiz et al, 2017). Increasing concentrations of gibberellic acid result in seed atrophy, which have their functionality reduced by the presence of the synthetic hormone, which starts to play the role of the natural hormone (Pereira et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Effects of exogenous applications of gibberellic acid on the development and quality of jabuticaba fruits

Semensato¹,

Vendruscolo

Seleguini

et al. 2020

Rev. Colomb. Cienc. Hortic.

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The jabuticaba is a native species that is seeing increased industrial exploitation because of its organoleptic and functional characteristics, making it attractive for food and pharmaceutical products. However, the fruit composition is not favorable for processing because of the abundance of seeds. Techniques already established for other crops should be studied to improve industrial use characteristics. Thus, the objective of this study was to evaluate the development and organoleptic quality of jaboticaba fruits as a function of exogenous applications of gibberellic acid on the stem of plants in three reproductive stages. The treatments consisted of four concentrations of gibberellic acid (0, 50, 100 and 200 mg L-1) applied to jabuticaba plant stems in three reproductive phenological stages (flower buds, anthesis and post-flowering). A randomized complete block design was used with a factorial scheme (4×3) with six replications. It was observed that applications during anthesis and after flowering resulted in lower seed mass values and seed numbers and higher pulp yield, on average 23.08, 22.97 and 20.87%, respectively. The treatment with flower buds and increased gibberellic acid concentrations also resulted in an increased pulp yield, up to a maximum of 12.58%. Thus, it was concluded that the application of increasing concentrations of gibberellic acid, up to 200 mg L-1, improves pulp yield without altering the organoleptic characteristics of jabuticaba fruits and that applications at post-flowering or anthesis provide higher quality for industrial uses.

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Efeito Do Ácido Giberélico Nas Características Ampelométricas Dos Cachos De Uva ‘A Dona’ E ‘Marte’

Cited by 5 publications

References 10 publications

Agronomic performance of table grape cultivars affected by rootstocks in semi-arid conditions

Agronomic performance of table grape cultivars affected by rootstocks in semi-arid conditions

Phenotypic divergence of grapes using productive cycle

Effects of exogenous applications of gibberellic acid on the development and quality of jabuticaba fruits

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