Desempenho produtivo de três cultivares de soja em duas épocas de semeadura e em cinco densidades de plantas

Martins, M. C.

doi:10.11606/d.11.2018.tde-20181127-160703

Cited by 4 publications

(2 citation statements)

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“…Results present in Table 5, have shown that genotypic correlations were bigger than phenotypic correlations for most of the traits, which indicate that genetic factors have contributed more to these traits than the environmental ones (ALMEIDA; PELUZIO;AFFÉRRI, 2010 By evaluating correlations between agronomic traits in soybeans, Sousa et al (2015) also have observed higher values of genotypic correlations about phenotype correlations to most of the evaluated traits, except plant height at flowering and plant height at maturity. Nogueira et al (2012) and Leite et al (2015) also observed higher genotypic correlations than phenotypic for agronomic traits assessed in soybean genotypes.…”

Section: Resultsmentioning

confidence: 87%

“…Several methods are applied to the improvement of crops aiming for the production of new cultivars, and the increase of grain yield is among the main objectives of these programs. Because it is a quantitative and complex trait, which results from the expression and association of different genetic components, it undergoes great environmental influence (NOGUEIRA, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Selection of lineages, genetic parameters, and correlations between soybean characters

Vianna¹,

Nogueira²,

Hamawaki³

et al. 2019

Biosci. J.

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Soybean has great economic importance in the world accordingly, this legume has been exploited in breeding programs aiming to provide cultivars with extensive grain yield, tolerant to pests and diseases, and adapted to different soil and climatic conditions. Therefore, the objectives of this study were to evaluate genetic parameters and correlations between soybean traits to select lineages to increase yield and improve agronomic traits. Experiments were carried out on the Capim Branco farm, of the Federal University of Uberlândia, harvest in 2016/2017. Fifteen morph-agronomic traits were assessed on twenty-two genotypes in a randomized complete block design with three replicates. Agronomic traits related to cycle, height, number of nodes and total pods have shown coefficients of genotypic determination higher than 70%. In addition, coefficients of variation of the number of days to the flowering and number of days to maturity were equal to 3.79% and 4.87%, respectively, indicating high homogeneity of data and low random variation. Among evaluated traits, ten have presented the ratios between the coefficient of genetic variation (CVg) and coefficient of environmental variation (CVe) above one, demonstrating high success likelihood in the selection of these traits. Fifteen genotypes have presented grain yield above the national average of the 2016/2017 harvest, which was 2882 kg h -1 . Significant phenotypic correlations between traits ranged from -0.49 to 0.89, however genotype correlation was higher than the phenotypic ones, indicating that genetic factors have contributed more than the environmental factors. Traits related to cycle, height, and the number of nodes in the main stem have presented measures of H² and CVg / CVe with extensive magnitudes, evidencing the possibility of selection lineages having superior traits in the Soybean Breeding Program of the Federal University of Uberlândia. To increasing grain yield, the traits Number of pods of three grains and the Total number of pods were identified as appropriated to indirect selection based on the phenotypic and genotypic correlations. The 2lP14, B2P1, B2P28, B1P33 and 2AP11 lineages stand out as superior genotypes to direct selection.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Selection of lineages, genetic parameters, and correlations between soybean characters

Vianna¹,

Nogueira²,

Hamawaki³

et al. 2019

Biosci. J.

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Plasticidade da cultura da soja (Glycine max (L.) Merril) em diferentes arranjos espaciais.

Heiffig¹,

Câmara²,

Marques³

et al.

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A Deus À minha família, em especial à minha mãe, Lília Sichmann e filhos, Karoline e Eduardo André. Ofereço e Dedico"O degrau de uma escada não serve simplesmente para que alguém permaneça em cima dele, destina-se a sustentar o pé de um homem pelo tempo suficiente para que ele coloque o outro um pouco mais alto." Thomas Huxley AGRADECIMENTOS EVALUATION OF THE PLASTICITY OF SOYBEAN (Glycine max (L.) Merrill) UNDER EFFECT OF VARIABILITY OF SPACE ARRANGEMENTS

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Produtividade da soja sob influência de ocorrência natural de Septoria glycines Hemmi e Cercospora kikuchii (Matsu. & Tomoyasu) Gardner com e sem controle químico

Martins¹

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Desempenho produtivo de três cultivares de soja em duas épocas de semeadura e em cinco densidades de plantas

Cited by 4 publications

References 1 publication

Selection of lineages, genetic parameters, and correlations between soybean characters

Selection of lineages, genetic parameters, and correlations between soybean characters

Plasticidade da cultura da soja (Glycine max (L.) Merril) em diferentes arranjos espaciais.

Produtividade da soja sob influência de ocorrência natural de Septoria glycines Hemmi e Cercospora kikuchii (Matsu. & Tomoyasu) Gardner com e sem controle químico

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