Seleção entre e dentro de progênies para a produção de frutos de pupunha

Borges, Catiele Vieira; Ferreira, Fábio Medeiros; Souza, Victor Ferreira de; Atroch, A. L.; Rocha, Rodrigo Barros

doi:10.4322/rca.2557

Cited by 5 publications

(4 citation statements)

References 8 publications

(11 reference statements)

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“…The number of selected genotypes can be considered adequate to maintain sufficient genetic variability for selection of other characters in the subsequent generations of clonal selection. These values are similar to those obtained with Bactris gasipaes Kunth with an average intensity of 10% (BORGES et al, 2017), and for Eucalyptus camaldulensis, with selection intensities of 6.67% within progenies (AZEVEDO et al, 2015). The decision regarding which selection intensity should be applied to each genetic material is essential for maximizing genetic gains, since at higher intensities, the genetic gain will also be greater.…”

Section: Parameters 1 -------Cn-------------s(%)-----------r(%)------...supporting

confidence: 84%

Selection of Acacia mearnsii for mini-cutting propagation

Gazzana,

Avinio,

Tonetto

et al. 2024

Cienc. Rural

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Acacia mearnsii De Wild. (Black wattle) is a forest species with great social and economical importance for the southern region of Brazil. This species has multifunctional characteristics, being cultivated to produce tannin, cellulose and energy. This research identified black wattle genotypes with competence for adventitious rooting for mini-cutting propagation. Single-bud mini-cuttings were treated with IBA at a concentration of 2000 mg L-1. After 30 days of cultivation in a humid chamber, the mini-cuttings were evaluated for percentages of survival, rooting, number of roots, average length of the three largest roots, and the number of mini-cuttings rooted per mini-stump. The identification of the best genotypes was performed with the Selegen REML/BLUP software. Selection between and within black wattle progenies can be performed based on the number of rooted mini-cuttings, making it possible to select genotypes with high competence for adventitious rooting while maintaining genetic variability for new selection cycles to develop clones for vegetative propagation by mini-cutting.

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Section: Parameters 1 -------Cn-------------s(%)-----------r(%)------...supporting

confidence: 84%

Selection of Acacia mearnsii for mini-cutting propagation

Gazzana,

Avinio,

Tonetto

et al. 2024

Cienc. Rural

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“…Despite species diversity and economic potential, native tree breeding programs in Brazil are limited to a few species such as Araucaria angustifolia (Silva et al, 2018a), Bactris gasipaes (Borges et al, 2017), Dipteryx alata (Rocha et al, 2015), Euterpe oleraceae (Farias Neto et al, 2008), Hevea brasiliensis (Dourado et al, 2018), Ilex paraguariensis (Costa et al, 2009), Myracrodruon urundeuva (Canuto et al, 2017), Schizolobium parahyba var. amazonicum (Baldoni et al, 2020), and Theobroma cacao (Duval et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

SOIL RESISTANCE AND MULTIVARIATE ANALYSIS AS AN AUXILIARY METHOD FOR SELECTING Calophyllum brasiliense PROGENIES

et al. 2022

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Precision silviculture is being developed to manage and improve Calophyllum brasiliense, a tree species associated with wet and swampy soils. This study estimated genetic parameters for growth traits in response to soil resistance as an auxiliary tool for identifying and selecting progenies adapted to water-saturated soils. This was undertaken in a progeny test of C. brasiliense in which 1,200 seedlings grown from seeds collected from a natural population were planted in a randomized complete block design for single-tree plots. Genetic statistical analysis was conducted using the REML/BLUP method. Significant differences (p<0.01) in diameter at breast height were observed among the progenies. The coefficients of genetic variation and heritability at the individual and progeny levels were low for diameter at breast height and height, indicating low genetic control for these traits, while high positive and significant genetic and phenotypic correlations were detected between diameter at breast height and height. Theoretical genetic gains and multivariate statistical analysis indicated three groups of progenies with different degrees of tolerance and adaptability to flooded soils, which could be useful in future breeding programs for this species, although further analysis at advanced ages is still required. The mean heights of tolerant and sensitive progenies were 12 and 58%, respectively, lower than the theoretical values, indicating that constant soil flooding is harmful to this species.

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“…Nessa cidade, também é comum a venda de frutos dessa palmeira cozidos em água e sal pelas ruas da cidade para o consumo direto dessa iguaria, muito apreciada no lanche ou no café da manhã. Seus frutos são caracterizados como alimento potencialmente nutritivo, sendo rico em lipídeos, fibras, amido e carotenoides totais, especialmente de vitamina A (Carvalho et al, 2009;Carvalho et al, 2013;Borges et al, 2017).…”

Section: Introductionunclassified

Perfil e preferências do consumidor de frutos de pupunha da cidade de Belém, Pará

Brandão

Oliveira

Santos

et al. 2021

RSD

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Os frutos de pupunheira (Bactris gasipaes Khunt.) apresentam grande diversidade de características e estrutura de comercialização em fase de desenvolvimento, fazendo-se necessário estudos que abordem o comportamento do consumidor, do que o leva a aceitação e a decisão pela compra do produto. O objetivo do trabalho foi caracterizar o perfil do consumidor de frutos dessa palmeira na cidade de Belém, PA, bem como suas preferências em relação às características mais relevantes do fruto. Foram aplicados questionários constituídos por três conjuntos de perguntas: perfil social, consumo e atributos no ato da compra em frequentadores de quatro feiras mais populares de Belém, totalizando uma amostra de 100 entrevistados. Os dados foram submetidos às análises estatísticas de frequência, além da análise global das categorias para obtenção do grau de importância dada pelos entrevistados. A maioria dos entrevistados preferiu adquirir frutos em cacho. A preferência na periodicidade de compra foi semanal (31%) e mensal (26%). O hábito de consumo mais frequente foi registrado em pessoas com nível médio de escolaridade e renda, caracterizando como consumidor de mercado popular. Pode-se considerar que o consumidor de frutos de Belém, PA, prefere a compra de frutos in natura, em cachos, de tamanhos médios, casca vermelha e polpa amarela, assim como de textura macia, oleosa e pouco fibrosa. O fator determinante de compra está na sanidade e na boa aparência dos frutos.

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Seleção entre e dentro de progênies para a produção de frutos de pupunha

Cited by 5 publications

References 8 publications

Selection of Acacia mearnsii for mini-cutting propagation

Selection of Acacia mearnsii for mini-cutting propagation

SOIL RESISTANCE AND MULTIVARIATE ANALYSIS AS AN AUXILIARY METHOD FOR SELECTING Calophyllum brasiliense PROGENIES

Perfil e preferências do consumidor de frutos de pupunha da cidade de Belém, Pará

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