2006
DOI: 10.1590/s0100-204x2006000600014
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: Resumo -O objetivo deste trabalho foi quantificar o componente da interação genótipos x ambientes e avaliar seus reflexos no progresso genético com diferentes critérios de seleção de linhagens de trigo adaptadas às condições do Brasil Central. Foram avaliadas 240 famílias F 2:4 oriundas de oito populações segregantes de trigo. Os experimentos foram conduzidos em campo, com semeaduras realizadas no verão e no inverno, em 2004. Foi utilizado o delineamento em látice com duas repetições. Avaliaram-se os caractere… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

4
20
1
15

Year Published

2007
2007
2018
2018

Publication Types

Select...
9

Relationship

2
7

Authors

Journals

citations
Cited by 35 publications
(40 citation statements)
references
References 6 publications
4
20
1
15
Order By: Relevance
“…On a research conducted by Vollmann and Ruckenbauer (1993), the heritability coefficients ranged 19-69%. It was observed that the estimates of variance of the interaction progenies x locations or progenies x years were always greater than the variance of progenies for the grain yield (Table 4), which was also verified in wheat (Cargnin et al 2006) and common bean (Coimbra et al 1999) for the grain yield characteristic, demonstrating, once again, the strong environmental influence on the characteristic The magnitude and type of the interaction progenies x locations and progenies x years may hamper the selection of progeny with stable response in different environments. However, on thousand grain weight, number of branches, and oil content, with a few exceptions, the estimate of variance of progenies was greater than the variance of the interaction (Table 4).…”
Section: Resultssupporting
confidence: 52%
“…On a research conducted by Vollmann and Ruckenbauer (1993), the heritability coefficients ranged 19-69%. It was observed that the estimates of variance of the interaction progenies x locations or progenies x years were always greater than the variance of progenies for the grain yield (Table 4), which was also verified in wheat (Cargnin et al 2006) and common bean (Coimbra et al 1999) for the grain yield characteristic, demonstrating, once again, the strong environmental influence on the characteristic The magnitude and type of the interaction progenies x locations and progenies x years may hamper the selection of progeny with stable response in different environments. However, on thousand grain weight, number of branches, and oil content, with a few exceptions, the estimate of variance of progenies was greater than the variance of the interaction (Table 4).…”
Section: Resultssupporting
confidence: 52%
“…Embora os melhoristas, em geral, interpretem essa interação como negativa, pois sugere uma barreira ao ganho de seleção, Vasconcelos et al (2010) ressaltam que as interações significativas representam uma oportunidade de exploração. A adaptação de genótipos a ambientes específicos pode fazer a diferença entre a boa e a excelente cultivar (Cargnin et al, 2006).…”
Section: Introductionunclassified
“…Desta forma, as diferenças entre as duas épocas devem-se, principalmente, aos estresses térmicos ocorridos nas fases iniciais, ou seja, da semeadura ao florescimento. Estudos de Cargnin et al (2006b) revelaram que altas temperaturas podem prejudicar a planta de trigo já na fase de germinação.…”
Section: Resultsunclassified
“…Diversos trabalhos têm relatado o efeito negativo de temperaturas elevadas sobre a planta de trigo (Cargnin et al, 2006a;Fokar et al, 1998;Khanna-Chopra e Viswanathan, 1999;Lal et al, 1998;Rane e Nagarajan, 2004;Shah e Paulsen, 2003;Souza e Ramalho, 2001;Yang et al, 2002). Segundo Fokar et al (1998), temperatura alta pode ser o maior fator de estresse ambiental limitante da produtividade de trigo, sendo a tolerância ao calor um importante objetivo nos programas de melhoramento.…”
Section: Introductionunclassified