2012
DOI: 10.1590/s0006-87052012005000016
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Avaliação de genótipos de soja em relação ao nematoide de cisto

Abstract: ResumoHeterodera glycines é um fitonematoide de importância econômica para a cultura da soja. Por isso, objetivou-se comparar metodologias para a avaliação de genótipos de soja em relação a este nematoide. Evaluation of soybean genotypes in relation to the cyst nematode AbstractHeterodera glycines is a phytonematode of economic importance in the soybean crop. Therefore, the objective was to compare methodologies for evaluation of soybean genotypes in relation to H. glycines. Two experiments were conducted (tr… Show more

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Cited by 6 publications
(8 citation statements)
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“…The experimental data can infer a negative relationship between genetic resistance to cyst nematode and development and root growth. Matsuo et al (2012) obtained similar results on the genotypic coefficient of determination 93.63 in the NF in comparison with the value of 70.28obtained in this research. They describe in their theoretical framework that the coefficients below 0.7 or 70% cannot influence the heritability of resistance characters in the experiment, in which the variations may originate from both the genetic factor and the environmental.…”
Section: Discussionsupporting
confidence: 89%
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“…The experimental data can infer a negative relationship between genetic resistance to cyst nematode and development and root growth. Matsuo et al (2012) obtained similar results on the genotypic coefficient of determination 93.63 in the NF in comparison with the value of 70.28obtained in this research. They describe in their theoretical framework that the coefficients below 0.7 or 70% cannot influence the heritability of resistance characters in the experiment, in which the variations may originate from both the genetic factor and the environmental.…”
Section: Discussionsupporting
confidence: 89%
“…They describe in their theoretical framework that the coefficients below 0.7 or 70% cannot influence the heritability of resistance characters in the experiment, in which the variations may originate from both the genetic factor and the environmental. Values considered of low magnitude are open to various interpretations to explain the results, indicating greater reliability and possibility of success in the simplest methods of improvement, seeking to gain in selection (Nascimento Filho et al, 1994;Aragão et al, 2001;Matsuo et al, 2012). The coefficients of the other variables -17.12 (FWR), 50.69 (DWR), and 45.07 (VR) -were considered of low magnitude, when seeking to use such characters to continue the genetic selection.…”
Section: Discussionmentioning
confidence: 99%
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“…Brida et al (2017) explain that the nematode P. brachyurus can penetrate and grow in roots regardless of the soybean cultivar analyzed. Matsuo et al (2012) and Bellé et al (2017) found differences between soybean and sugarcane genotypes, respectively, and classified them as resistant and moderately resistant to Heterodera glycines, Meloidogyne javanica, and Pratylenchus zeae, respectively.…”
Section: Resultsmentioning
confidence: 99%
“…Generating resistant plant is one of the most efficient and economical methods for controlling the soybean cyst nematode (SCN), one of the main causes of soybean yield reduction (Matsuo et al, 2012). However because of the great genetic variability of this nematode species, the continual use of the same resistant plant variety exerts selection pressure for SCN breeds that are capable of parasitizing the said variety; in order to avoid this, it is necessary to increase genetic diversity of resistant soybean plants (Silva et al, 2007).…”
Section: Introductionmentioning
confidence: 99%