Data/hora: 03/06/2024 11:40:34

Biblioteca(s): 	Epagri-Sede.	
Data corrente: 	12/02/2016	
Data da última atualização: 	12/02/2016	
Autoria: 	MARO, L. A. C.; MARIGUELE, K. H.	
Título: 	GERMINATION CITRUS ROOTSTOCKS SEEDS.	
Ano de publicação: 	2015	
Fonte/Imprenta: 	In: ANNUAL MEETING OF THE INTERAMERICAN SOCIETY FOR TROPICAL HORTICULTURE, 61., 2015, Manaus. Annals... Brasilia: Emprapa, 2015. p. 97	
Idioma: 	Inglês	
Conteúdo: 	In the citrus nursery production is desirable rootstocks, planted from seed with uniformity in germination and that results in high and rapid germination. Therefore, the aim this work was to evaluate the germination percentage and the germination speed index (GSI) of different citrus rootstocks. The seeds of ¿Trifoliata`, 'Flying Dragon`, 'Swingle` citrumelo and hybrid Rangpure lime x Sunki were extracted from ripe fruits collected from the collection of rootstocks EPAGRI / EEI, in Brazil. After extraction, the seeds were washed in water to remove the mucilage and then put to dry in the shade for three days. It was eliminated deformed, damaged or immature seeds. Three hundred seeds to evaluate the germination and GSI. The seeds were sown in plastic trays containing sand as substrate. From beginning of the germination process, the evaluations were performed every 3 days for a period of 60 days. The germination rates were determined according to GSI, adapted from Maguire formula (1962). Rangpur lime x Sunki and 'Swingle` showed the largest values for GSI , respectively (14.1 and 10.7). Moreover, germination was more slowly for 'Trifoliata` and 'Flying Dragon` rootstocks that showed the same behavior over time with similar GSI. From the 41st day occurred considerable increase in the GSI Rangpure lime x Sunki where 30% more seeds germinated when compared with 'Swingle`, showing the vigor of this material. At 59 days, the total percentage of germination was: 21.3% ('Trifoliata`), 24% ('Flying Dragon`), 63% ('Swingle`) and 93% (Rangpure lime x Sunki). The hybrid Rangpure lime x Sunki showed promising results and should be evaluated for other traits such as disease tolerance.	
Palavras-Chave: 	Citrus spp; Germination speed index; Seedling production.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_37417.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
Exemplares: 	Epagri-Sede - (99831-1) - UPC - PL - DD -  -  -  - DIS