Data/hora: 14/06/2024 09:00:09

Biblioteca(s): | Epagri-Sede.
Data corrente: | 29/10/2021
Data da última atualização: | 29/10/2021
Autoria: | ROCHA, D. J. A.; CÓRDOVA, U. A.; FLARESSO, J. A.; STRADIOTO NETO, J.; COSTA, M. D.
Título: | SCS313 Serrano, a big trefoil selected for flowering ability and seed production.
Ano de publicação: | 2021
Fonte/Imprenta: | bioRxiv, EUA, p. 1-9, 2021.
Idioma: | Inglês

Conteúdo:

SCS313 Serrano is a tetraploid cultivar of Lotus uliginosus developed by the Research
and Rural Extension Company of Santa Catarina, Brazil, to improve flowering ability and seed
production in low-latitude regions. SCS313 Serrano was developed from the selection of
individual plants of the cultivar Grasslands Maku. Seeds from the initial breeding population
was bulked and used to establish a field trial with spaced plants. The plants were selected
and classified as late or early, regarding the beginning of flowering, through visual evaluations
based on the time for the beginning of flowering. Selected plants were transplanted to
crossing blocks and seed harvested on individual plants; a progeny test was conducted, with
four replications, through the establishment of approximately 100 genotypes in a field. This
process was repeated for three consecutive cycles of recurrent selection. Considering the
mean time for the beginning of flowering and vigor performance, the best five genotypes were
selected as parental lines for the synthetic cultivar SCS313 Serrano. A morphological
difference between SCS313 Serrano and Grasslands Maku is that SCS313 Serrano has
absence of hairs in stems whereas Grasslands Maku has a medium stem hair density. In
addition, SCS313 Serrano exhibits profuse flowering ability while Grasslands Maku exhibits
very sparse seedhead formation. SCS313 Serrano exhibited good persistence under wet
conditions and similar forage yields compared to other lotus commercial cultivars. Thus,
SCS313 Serrano is recommended to be used as pasture in mixtures with grass in livestock
systems, mainly on wet soils.

Palavras-Chave: | condensed tannins; Lotus uliginosus; pastures mixtures.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_50241.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (106381-1) - UPC - AP - DD -  -  -  - DIS