Data/hora: 24/06/2024 19:25:41

Biblioteca(s): 	Embrapa Algodão.	
Data corrente: 	10/02/2022	
Data da última atualização: 	05/02/2023	
Autoria: 	QUEIROZ, D. R.; FARIAS, F. J. C.; SILVA, E. F. da; ELIAS, J. J.; TEODORO, L. P. R.; TEODORO, P. E.	
Afiliação: 	DAMIÃO RANIER QUEIROZ, UFRPE; FRANCISCO JOSE CORREIA FARIAS, CNPA; EDSON FERREIRA DA SILVA; JUTAHY JORGE ELIAS, UFAL; LARISSA PEREIRA RIBEIRO TEODORO, UFMS; PAULO EDUARDO TEODORO.	
Título: 	Using combining ability as a strategy of upland cotton selection for high fiber quality.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Euphytica, v. 217, n. 9, article number 184, 2021.	
Páginas: 	16 p.	
ISSN: 	1573-5060	
DOI: 	10.1007/s10681-021-02917-6	
Idioma: 	Inglês	
Conteúdo: 	High fiber quality is one of the most desired traits in the upland cotton breeding. To this end, breeding programs have developed hybrids with high heterotic effect, which provide genetic combinations and segregating populations from which superior genotypes can be selected. The objectives of this study were: (1) to identify superior genitors based on the general combining ability (GCA), (2) to indicate the best crossbreeds through the specific combining ability (SCA), and (3) to estimate phenotypic and genotypic correlations for the following fiber traits: length, uniformity, short fiber index, strength, elongation, micronaire, maturity, reflectance, degree of yellowing, and spinning index. The experiments were carried out in two environments in the semi-arid region of Brazil and two harvests (2015 and 2019) to evaluate six parents and fifteen F1?s hybrids obtained by diallel crossings. The design used was random blocks with three replicates. The following traits were evaluated: length, uniformity, short fiber index, strength, elongation, micronaire, maturity, reflectance, degree of yellowing, and spinning index. Analysis of variance, diallel analysis and genetic correlations were performed. The parents with higher GCA were: TAMB 139-17, PSC 355, IAC 26, and FM 993. The crossings with highest SCA were: TAMB 139-17 × TAMCOT CAMD-E, CNPA 04 2080 × PSC 355, TAMB 139-17 × IAC 26, FM 993 × CNPA 04 2080. Positive genetic correlations were found between length, uniformity, strength, and spinning index. Micronaire had positive correlations with maturity. The short fiber index showed negative correlations with length, uniformity, strength, elongation, degree of yellowing, and spinning index.	
Palavras-Chave: 	G hirsutum.	
Thesagro: 	Algodão; Fibra Vegetal; Reprodução Vegetal.	
Thesaurus Nal: 	Cotton; Diallel analysis; High volume instruments; Plant breeding.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Algodão (CNPA)	
Exemplares: 	CNPA - (28862-1) - UPC - AP - DD -  -  -  - DIS