Data/hora: 30/05/2024 17:11:17

Biblioteca(s): 	Embrapa Gado de Leite.	
Tipo da produção científica: 	Nota Técnica/Nota Científica	
Data corrente: 	18/08/2021	
Data da última atualização: 	18/08/2021	
Autoria: 	OLIVEIRA, P. S. d'; SUZUKI, L. S.; CARNEIRO, J. da C.; MACHADO, J. C.; PRATES, J. F.; ROCHA, J. R. do A. S. de C.	
Afiliação: 	PERSIO SANDIR D OLIVEIRA, CNPGL; LETICIA SAYURI SUZUKI, CNPGL; JAILTON DA COSTA CARNEIRO, CNPGL; JUAREZ CAMPOLINA MACHADO, CNPGL; JADER FORQUIM PRATES, Bacharel, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste; JOÃO ROMERO DO AMARAL SANTOS DE CARVALHO ROCHA, Universidade Federal de Viçosa.	
Título: 	Use of SPAD index in elephant grass pre-breeding.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Semina. Ciências Agrárias, Londrina, v. 41, n. 3, p. 1047-1052, maio/jun. 2020.	
Idioma: 	Inglês	
Notas: 	Short communication.	
Conteúdo: 	The SPAD-502 (Soil Plant Analysis Development) chlorophyll meter is a simple diagnostic tool that instantly measures the chlorophyll content of plant leaves without damaging the leaf blade. This study aimed to evaluate the efficacy of the SPAD index as a tool for discriminating elephant grass acessions from different morphological groups. One hundred genotypes of the elephant grass Pennisetum purpureum from the Active Germplasm Bank at Embrapa Dairy Cattle, Minas Gerais, Brazil were evaluated. Following uniform cutting, six SPAD readings were taken from each accession every 60 days. Measurements were taken for two years. The experimental design was a 10 × 10 simple lattice with two replications. Joint deviance analysis for six SPAD measurements revealed great genetic variability between genotypes. SPAD values of Cameroon and Napier accessions were, on average, significantly different. The SPAD index was effective in detecting genetic variability between elephant grass acessions. However, it should not be used alone as a morphological descriptor, but in combination with other descriptors.	
Palavras-Chave: 	Clorofilômetro; Crop breeding.	
Thesagro: 	Gramínea Forrageira; Melhoramento Vegetal; Pennisetum Purpureum.	
Thesaurus Nal: 	Chlorophyll.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/225325/1/Use-SPAD.pdf	
Registro original: 	Embrapa Gado de Leite (CNPGL)	
Exemplares: 	CNPGL - (25245-1) - UPC - AP - DD -  -  -  - DIS