Data/hora: 10/06/2024 09:00:56

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 13/05/2021
Data da última atualização: | 09/08/2021
Autoria: | VIEIRA, L. M.; MAGGIONI, R. de A.; TOMASI, J. de C.; GOMES, E. N.; WENDLING, I.; HELM, C. V.; KOEHLER, H. S.; ZUFFELLATO-RIBAS, K. C.
Afiliação: | LEANDRO MARCOLINO VIEIRA, UNIVERSIDADE FEDERAL DO PARANÁ; RENATA DE ALMEIDA MAGGIONI, UNIVERSIDADE FEDERAL DO PARANÁ; JÉSSICA DE CÁSSIA TOMASI, UNIVERSIDADE FEDERAL DO PARANÁ; ERIK NUNES GOMES, RUTGERS UNIVERSITY, NEW BRUNSWICK, NEW JERSEY, USA; IVAR WENDLING, CNPF; CRISTIANE VIEIRA HELM, CNPF; HENRIQUE SOARES KOEHLER, UNIVERSIDADE FEDERAL DO PARANÁ; KATIA CHRISTINA ZUFFELLATO-RIBAS, UNIVERSIDADE FEDERAL DO PARANÁ.
Título: | Vegetative propagation, chemical composition and antioxidant activity of yerba mate genotypes.
Ano de publicação: | 2021
Fonte/Imprenta: | Plant Genetic Resources, v. 19, n. 2, p. 112-121, Apr. 2021.
DOI: | https://doi.org/10.1017/S1479262121000150
Idioma: | Inglês
Conteúdo: | Ilex paraguariensis, commonly known as yerba mate, is a tree species native to South America. Its commercial value is due to the manufacturing of teas, with potential also in the pharmacological and cosmetic industries. Vegetative propagation of yerba mate is considered an innovation to the traditional production systems based on sexual propagation. The present study aimed to evaluate the rhizogenic potential and chemical attributes of mini-cuttings from 15 yerba mate genotypes, as well as to verify the correlation between phytochemical and rooting-related variables. Mini-cuttings were collected from a pre-existing mini-clonal hedge and the experimental design was completely randomized, with 15 treatments (genotypes), four replications and 10 mini-cuttings per plot. After 120 days, mini-cuttings were assessed regarding rooting, mortality, callogenesis and leaf retention percentages, percentage of mini-cuttings with both calluses and roots, number of roots and average root length. At the time of collection, subsamples from each plot were used for phytochemical analyses including total phenolic compounds, protein, caffeine and theobromine contents and antioxidant activity. Rooting percentages ranged from 5 to 72.5%, with significant variation among genotypes. Adventitious rooting and phytochemical profile of yerba mate mini-cuttings are genotype-dependent. Leaf retention is a relevant factor in the rooting of yerba mate mini-cuttings and the levels of total phenolic compounds, antioxidants and theobromine present in mini-cuttings are negatively correlated components to Ilex paraguariensis adventitious rooting.
Palavras-Chave: | Callogenesis; Erva mate; Mini-cutting.
Thesagro: | Cafeína; Enraizamento; Ilex Paraguariensis; Propagação Vegetativa.
Thesaurus Nal: | Caffeine; Rooting.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (57682-1) - UPC - AP - DD -  -  -  - DIS