Data/hora: 23/09/2024 23:49:22

Biblioteca(s): 	Embrapa Pecuária Sudeste.	
Data corrente: 	10/04/2001	
Data da última atualização: 	05/01/2022	
Autoria: 	ADAMOWSKI, E. de V.; PAGLIARINI, M. S.; BATISTA, L. A. R.	
Afiliação: 	ELENIZA DE VICTOR ADAMOWSKI, UEL; MARIA SUELY PAGLIARINI, UEL; LUIZ ALBERTO ROCHA BATISTA, CPPSE.	
Título: 	Chromosome number and microsporogenesis in Paspalum maritimum (Caespitosa Group; Gramineae).	
Ano de publicação: 	2000	
Fonte/Imprenta: 	Brazilian Archives of Biology and Technology, v.43, n. 3, p.301-305, 2000.	
Idioma: 	Inglês	
Conteúdo: 	Despite pf economic importance of the genus Paspalum, little or no cytologic information is available for many species. This is the first report about chromosome munber and meiotic behavior for P. maritimum. The three accessions colected in Amapa State (North Region of Brazil) were tetraploid (2n=4x=40) with the chromossomes associating predominantly as bivalents. The low frequency of multivalents suggeted that they were segmental allotetraploids. All accessions showed a low rate of meiotic irregulatities, and as a consequence the pollen fertility was high. The results suggeted that these accessions presented potential for use ia a hybridization program.	
Palavras-Chave: 	Meiotic behavior; Pollen fertility.	
Thesagro: 	Paspalum Maritimum.	
Thesaurus Nal: 	chromosome number.	
Categoria do assunto: 	G Melhoramento Genético	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (13213-1) - UPC - AP - DD - PROCI-2000.00001 - ADA - 2000.00001 - DIS