Rendimento e processo germinativo do grão na espiga de genótipos de trigo

Felício, João Carlos; Camargo, Carlos Eduardo de Oliveira; Germani, Rogério; Freitas, José Guilherme de

doi:10.1590/s0100-204x2002000300009

Cited by 2 publications

(2 citation statements)

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“…On the other hand, indirect effect of NEM was low and positive (0.189), inferring that increase in NEM leads to an increase in GY, as already mentioned, however, tendency is to increase the susceptibility pre-harvest sprouting. These results are similar to study by Felicio et al (2002), with different wheat cultivars, where no cultivar obtained high grain yield associated with good tolerance to pre-harvest sprouting.…”

Section: Resultssupporting

confidence: 90%

Grain Yield and Its Associations With Pre-harvest Sprouting in Wheat

Rigatti¹,

Meira²,

Olivoto³

et al. 2019

JAS

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This study aimed to evaluate direct and indirect effects of agronomic traits importance on grain yield with focus in pre-harvest sprouting. Experiment was conducted in 2017 crop season, and conducted in a randomized block design, with three replications, with eight wheat cultivars (BRS Sábia, CD 105, CD 1104, CD 1440, Frontana, Jadeíte 11, Mirante and ORS Vintecinco). Grain yield and its components were evaluated, as well as other important traits such as pre-harvest sprouting. Data were submitted to variance analysis; and phenotypic, genotypic and environmental correlations were estimated to understand grain yield expression, direct and indirect effects of its components were evaluated through path analysis. Cultivar BRS Sabiá showed shorter cycle, cultivar CD 1104 was highlighted in number of spikes per area, hectoliter weight and grain yield. And cultivars Frontana, CD 1440 and ORS Vintecinco presented the best tolerances pre-harvest sprouting. Grain yield showed high and positive phenotypic and genotypic correlations with number of ears per square meter. Furthermore, high positive direct effect of pre-harvest sprouting on grain yield, revels lower tolerance for cultivars with high grain yield. Number of spikes per square meter showed intermediate and positive direct effect and pre-harvest sprouting had the greatest direct effect on grain yield.

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Section: Resultssupporting

confidence: 90%

Grain Yield and Its Associations With Pre-harvest Sprouting in Wheat

Rigatti¹,

Meira²,

Olivoto³

et al. 2019

JAS

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show abstract

“…É interessante que o melhorista tenha conhecimento de tais técnicas para que possa identificar a mais apropriada à sua espécie e aos seus objetivos. Na literatura, há trabalhos visando estimar a adaptabilidade e a estabilidade de genótipos de trigo nas condições do Centro-Oeste brasileiro (FELICIO et al, e 2002. Da mesma forma, em nível mundial, alguns trabalhos têm estimado parâmetros de adaptabilidade e estabilidade em genótipos de trigo (ASHRAFM et al, 2001;ASSIF et al, 2003;KAKAR et al, 2003).…”

Section: Introductionunclassified

Adaptabilidade e estabilidade de linhagens de trigo no Estado de São Paulo

et al. 2006

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RESUMOEstimaram-se parâmetros de adaptabilidade e estabilidade, por meio de dois métodos não paramétricos, para produtividade de grãos, de 20 genótipos de trigo, sendo 18 linhagens mexicanas e duas cultivares comerciais, avaliadas em três locais do Estado de São Paulo, durante 2001 e 2002. Foram observados efeitos significativos para as fontes de variação genótipos, anos e locais, constatando-se que o comportamento das linhagens não foi coincidente para os dois anos e para os três locais de avaliação. As interações genótipos x locais, anos x locais e genótipos x locais x anos foram estatisticamente significativas. Independentemente do método e considerando a análise para os dois anos e os três locais, as linhagens 13 (HAHN/2*WEAVER) e 3 (SERI M 82) figuraram entre as cinco primeiras no ranqueamento, com adaptabilidade e estabilidade amplas. Estas linhagens, em especial a linhagem 13, poderiam ser recomendadas para cultivo pelos agricultores desde que sejam avaliados outros caracteres agronômicas de interesse, entre eles o porte da planta, a resistência às doenças e a tolerância ao alumínio tóxico. Os dois procedimentos forneceram resultados semelhantes, de fácil estimativa e sobretudo fácil interpretação. Palavras-chave:Triticum aestivum L., genótipos, produtividade de grãos. ABSTRACT ADAPTABILITY AND STABILITY INBRED WHEAT LINES OF IN SÃO PAULO STATEAdaptability and Stability parameters were estimated by two non-parametric methodologies for grain yield in 20 wheat genotypes, 18 Mexican inbred lines and two cultivars, which were evaluated in three locations of São Paulo State, during 2001 and 2002. Significant effects were observed for genotypes, years and locations, indicating that the performance of the inbred lines was not coincident for the two years and the three locations. Genotypes x locations, years x locations and genotypes x years x locations interactions were significant. Independently of the methodology and considering the analysis for the two years and for the three locations, inbred lines 13 (HAHN/2*WEAVER) and 3 (SERI M 82) ranked among the five, with wide adaptability and stability. These inbred lines, specially the 13, could be recommended for cultivation by growers after the evaluation of other interesting agronomic traits, such as plant height, disease resistance and aluminum tolerance. The two methodologies provided similar results with easy estimates and interpretation.

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Rendimento e processo germinativo do grão na espiga de genótipos de trigo

Cited by 2 publications

References 5 publications

Grain Yield and Its Associations With Pre-harvest Sprouting in Wheat

Grain Yield and Its Associations With Pre-harvest Sprouting in Wheat

Adaptabilidade e estabilidade de linhagens de trigo no Estado de São Paulo

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