CARACTERIZAÇÃO MORFOLÓGICA DE GENÓTIPOS DE Manihot esculenta Crantz OBTIDOS VIA SEMENTES

Ebertz, Odila Friss; Palomino, Edwin Camacho

doi:10.18542/ragros.v9i2.5120

Cited by 4 publications

(2 citation statements)

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“…M. esculenta cultivation has suffered human interference throughout its evolutionary history in the domestication process of this species, with clonal propagation used for commercial purposes (Martins, 2005). However, cassava continues to reproduce sexually with allogamy, and seeds generated from these crosses are responsible for promoting genetic variability, enabling the selection of genotypes of greater agronomic importance by breeders (Ebertz and Palomino, 2017). Vegetative propagation occurs by planting cut stems from mature plants, vertically, inclined or horizontal.…”

Section: Resultsmentioning

confidence: 99%

Three decades of cassava cultivation in Brazil: Potentialities and perspectives

Bester

Carvalho

Silva

et al. 2021

Rev. Colomb. Cienc. Hortic.

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Cassava (Manihot esculenta) shows high phenotypic plasticity, acclimatization, wide adaptability, and resilience to adverse edaphoclimatic conditions. In this context, this systematic review aims to identify what were the factors that determined the production of cassava in Brazil in the last three decades, and to direct what are the possible perspectives of the crop in the country. The methodology to produce this review was based on studies that which integrate the academic information produced in different situations (1990-2020), environments, states, groups of researchers and existing scientific evidence for this theme. Based on the information, a binary matrix of information was assembled based on the following characters, plant density per hectare, soil type, city, state, average air temperature, planting line spacing, plant spacing on the planting line, implantation date, implantation station, harvesting station, productivity per hectare, days for harvest, liming, fertilization, precipitation and climate. It is evident that in the last 30 years the productivity of cassava in Brazil has been increased, mainly in low-income populations and those located in rural areas. There are prospects for increasing cassava production for fresh sale and industry. The crop is characterized as rustic, highly adaptive, tolerant of water stress and acidic soils, being highly influenced by the climate, rainfall, air temperature, and incident solar radiation. Productivity is determined by the time of implantation, liming, fertilization, density, and plant arrangement.

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Section: Resultsmentioning

confidence: 99%

Three decades of cassava cultivation in Brazil: Potentialities and perspectives

Bester

Carvalho

Silva

et al. 2021

Rev. Colomb. Cienc. Hortic.

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“…Os descritores morfoagronômicos têm sido amplamente utilizados na caracterização e distinção de etnovariedades de mandioca (Teixeira et al, 2014;Adjebeng-Danquah et al, 2016;Ebertz;Palomino, 2017), uma vez que os descritores morfológicos são de fácil aferição e menos influenciados pelo ambiente que os descritores agronômicos, que, por sua vez, são importantes sob o ponto de vista econômico pois contribuem para visualizar o potencial produtivo Guevara, 1998), de modo que a avaliação de ambos permite distinguir as etnovariedades e identificar aquelas com maior potencial para exploração comercial.…”

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Diversidade genética entre etnovariedades de mandioca cultivadas no norte do estado de Mato Grosso por meio de descritores morfoagronômicos

Pedri

Santos

Wolf

et al. 2021

RSD

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A mandioca é uma das mais tradicionais culturas agrícolas, de relevância socioeconômica, cultivada eficientemente, em todas as regiões do Brasil. Objetivou-se neste estudo caracterizar 71 etnovariedades de mandioca, cultivadas no norte do estado de Mato Grosso, por meio de descritores morfoagronômicos, bem como destacar as etnovariedades com características desejáveis para o cultivo comercial e processamento agroindustrial. Para tanto, utilizou-se 31 descritores qualitativos e oito quantitativos. Os dados foram analisados com auxílio do software Excel e do programa Genes. Com base nos dados qualitativos evidenciou-se variabilidade fenotípica entre as etnovariedades e a formação de dez grupos genéticos pelo método UPGMA. Todas as etnovariedades apresentam raízes com mais de uma característica desejável pelos consumidores e, portanto, de interesse agronômico e comercial. Por meio dos dados quantitativos foi possível a formação de oito grupos distintos. As etnovariedades LCA09, MTA02 e MTA05 foram as mais dissimilares. Os descritores comprimento médio da raiz (65,70%) e comprimento do pecíolo (14,44%) foram os que mais contribuíram para a diversidade genética entre as etnovariedades. A análise conjunta dos dados reuniu as etnovariedades em nove grupos genéticos, sem duplicidade de material. Conclui-se que as etnovariedades de mandioca cultivadas por agricultores familiares no estado de Mato Grosso apresentam diversidade genética quanto aos descritores morfoagronômicos. Congregam características desejáveis pelos consumidores, apresentam potencial para cultivos comerciais e processamento agroindustrial, podendo ser úteis como progenitoras em programas de melhoramento com a espécie.ncluir o resumo.

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Morphological characterization of commercial okra accessions

Lima,

Maciel,

Nascimento

et al. 2025

Rev. Caatinga

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Okra (Abelmoschus esculentus L. Moench) has been less studied compared to other crop species of the family Malvaceae, thus presenting high potential for research, mainly in genetic improvement. Morphological characterization is a pre-breeding step that can be conducted using quantitative and qualitative descriptors. Thus, the objective of this study was to morphologically characterize commercial okra accessions to provide a foundation for breeding programs in this crop species. The experiment was conducted in the experimental area of the Federal Institute of Alagoas, Piranhas, AL, Brazil, using a randomized block design with five treatments and five replications. Okra plants and fruits were characterized through qualitative descriptors, using a hierarchical clustering of accessions based on Unweighted Pair Group Method with Arithmetic Mean (UPGMA). The greatest genetic distance was found between the Santa Cruz-47 and Clemson Americano-80 accessions, whereas the lowest distance was found between the Cariri and Apuim accessions. The UPGMA analysis resulted in two accession groups: group I consisting of Clemson Americano-80 and Canindé accessions, and group II consisting of Cariri, Apuim, and Santa Cruz-47 accessions. Viable hybrids can be obtained from crossings between accessions of group I and group II.

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CARACTERIZAÇÃO MORFOLÓGICA DE GENÓTIPOS DE Manihot esculenta Crantz OBTIDOS VIA SEMENTES

Cited by 4 publications

References 0 publications

Three decades of cassava cultivation in Brazil: Potentialities and perspectives

Three decades of cassava cultivation in Brazil: Potentialities and perspectives

Diversidade genética entre etnovariedades de mandioca cultivadas no norte do estado de Mato Grosso por meio de descritores morfoagronômicos

Morphological characterization of commercial okra accessions

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