Agronomic performance and genetic divergence between genotypes of Manihot esculenta



Document title: Agronomic performance and genetic divergence between genotypes of Manihot esculenta
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000435708
ISSN: 0001-3765
Authors: 1
1
2
3
4
1
Institutions: 1Universidade Federal do Espirito Santo, Centro Universitario Norte do Espirito Santo, Sao Mateus, Espirito Santo. Brasil
2Universidade Estadual do Norte Fluminense Darcy Ribeiro, Centro de Ciencias e Tecnologias Agropecuarias, Campos dos Goytacazes, Rio de Janeiro. Brasil
3Universidade Estadual do Maranhao, Departamento de Fitotecnia e Fitossanidade, Sao Luis, Maranhao. Brasil
4Universidade de Lisboa, Instituto Superior de Agronomia, Lisboa. Portugal
Year:
Season: Dic
Volumen: 90
Number: 4
Pages: 3639-3648
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English 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
Disciplines: Agrociencias
Keyword: Angiospermas,
Fitotecnia,
Fitomejoramiento,
Biodiversidad,
Mejoramiento genético,
Divergencia genética,
Yuca,
Manihot esculenta,
Euphorbiaceae
Keyword: Angiosperms,
Crop husbandry,
Plant breeding,
Biodiversity,
Genetic improvement,
Genetic divergence,
Cassava,
Manihot esculenta,
Euphorbiaceae
Full text: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703639&lng=en&nrm=iso&tlng=en