Agronomic performance and genetic divergence between genotypes of Manihot esculenta

Abstract

The morphoagronomic characterization of 12 genotypes of M. esculenta was performed during the 2013/2014 and 2014/2015 crop years. The 12 genotypes were planted in a randomized block design, with four replicates per genotype. Number of tuberous roots per plant, weight of tuberous roots, root yield, total plant weight, harvest index, plant height, height of first branch, number of shoots, stem diameter, number of buds, leaf dry weight and petiole length were evaluated. Genotypes "Camuquem" and "Goiás" were the most productive, and "Amarela" and "Gema de Ovo" were the most divergent. Seventy percent of genetic diversity was due to petiole length (22.86%), root yield (19.20%), weight of tuberous roots (14.89%) and number of buds (13.72%). Overall, the present results indicate a broad genetic basis for the evaluated genotypes, so that such genetic variation benefits the plant breeding for future scenarios Further studies of the evaluated genotypes should be performed under environmental limitations, using biochemical and molecular tools to identify markers for genetic improvement.

Genetic diversity among cassava genotypes (Manihot esculenta crantz) collected in the south-central mesoregion of the state of Mato Grosso-Brazil

“…The average height of the first branch was 2.69 m, with the genotype EMCB-32 showing the higher height (2.76 m) and the genotype EMCB-27 the lowest (0.07 m). These average results are superior when compared to research carried out by Giles et al (2018), evaluating 12 genotypes of M. esculenta in the state of Espírito Santo-Brasil, in which the average was 0.89 m.…”

First Development of a Biotechnological Ferment Based on a Consorsium of the Genus <i>Bacillus</i> for the Optimization of the Fermentation Process of Cassava Tubers

“…Three 3 An index of seven (7) to eight (8) was associated with the tuber with penetration of the stem creating cracks. An index of five (5) was associated with the tuber that the penetrometer entered but did not break.…”

“…Manihot esculenta, Cranzt, commonly called cassava [8], manioc, yuca, macaxeira, mandioca, aipim, and agbeli, is a woody shrub of the spurge family, Euphorbiaceae is extensively cultivated as an annual crop in Republic of Congo for its edible starchy tuberous root and all other derived products [9]. This plant represents nearly 80% of local consumption [1].…”

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

“…A raiz da mandioca contém altos níveis de carboidratos, por isso é destinada a alimentação humana e animal, além de ser utilizada como matéria-prima para aplicações agroindustriais. A comercialização da mandioca é feita na forma in natura (raízes inteiras com casca), congelada (embaladas a vácuo), cozida ou pré-cozida, na forma de farinha e polvilho (Giles et al, 2018;Menezes et al, 2019). Research, Society and Development, v. 10, n. 5, e25410514871, 2021 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v10i5.14871…”

“…A ampla variabilidade fenotípica existente dentro da espécie M. esculenta pode ser analisada por meio de estudos de diversidade genética com o emprego de descritores morfoagronômicos, qualitativos e quantitativos, de forma conjunta e complementar (Vieira et al, 2013). A caracterização por meio de descritores morfoagronômicos é fundamental para diferenciação e, posterior, conservação das etnovariedades, além de contribuir com melhoristas na identificação de genótipos superiores, possibilitando assim o desenvolvimento e a disponibilização de variedades promissoras tanto para produtores quanto para consumidores (Fuhrmann et al, 2016;Giles et al, 2018).…”