The effect of soil volume, plant density and sowing depth on soybean seedlings characters

Camargos, Tayná Veloso de Castro; Campos, Núbia Soares de; Alves, Guilherme Ferreira; Ferreira, Silvana da Costa; Matsuo, Éder

doi:10.33158/asb.2019v5i2p47

Cited by 9 publications

(11 citation statements)

References 15 publications

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“…The magnitudes of the coefficients of variation obtained in Experiment 1 and 2 were 7.96% and 7.35%, respectively, and they corroborate with those obtained by Nogueira et al (2008), Matsuo, Sediyama, Cruz, Oliveira andCadore (2012a) and lower than those obtained by Silva et al (2016), Chaves et al (2017), Camargos et al (2019 and Hanyu et al (2020).…”

Section: Resultssupporting

confidence: 90%

“…Concerning the fact of having identified significant difference between cultivars regarding the epicotyl length of soybean seedlings evaluated at the V2 development stage, the present work corroborates with those of Matsuo et al (2012a), Matsuo, Sediyama, Cruz andOliveira (2012b), Silva et al (2016), Chaves et al (2017), Alves et al (2019), Camargos et al (2019 and Hanyu et al (2020). The observed significance indicates that the soybean genotypes show differences among themselves, which enables successful selection of promising materials (Matsuo et al, 2012b).…”

Section: Resultssupporting

confidence: 84%

“…This is due to the competition for light, caused by the greater shading between plants (Moore, 1991). However, the evaluation of epicotyl length has been performed in the early stages of the crop, in V2 or V3 (Camargos, Campos, Alves, Ferreira, & Matsuo, 2019;Hanyu et al, 2020) and it is expected that at this stage the total shading of the inter-rows has not yet occurred, even with reduced spacing and higher plant density per area. Given this, the objective was to evaluate the epicotyl length of seedlings of different soybean cultivars, in the field, submitted to plant densification by reducing the inter-row spacing.…”

Section: Introductionmentioning

confidence: 99%

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Epicotyl length in seedlings of soybean cultivars subjected to reduced inter-row spacing

Gontijo¹,

Sousa

Matsuo

et al. 2021

ASB J.

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The objective was to evaluate the epicotyl length of seedlings of soybean cultivars in the field, submitted to plant densification by reducing the inter-row spacing. Two field experiments were conducted in Rio Paranaíba in the state of Minas Gerais and the effect of reduced spacing (20 cm, 30 cm, 40 cm and 50 cm between rows) was evaluated. The assessment of the epicotyl length was done by using a millimeter ruler when the plants reached the V2 development stage. The experiments were conducted in a randomized block design with four repetitions. In experiment 1, the BRSMG752S cultivar was submitted to four inter-row spacings and no differences were found among them. In experiment 2, the simple factorial scheme 4 x 3 was considered, with 4 spacings and 3 cultivars, to analyze the effect of the interaction between cultivars (96R10, 97R50 and 98Y21) and spacing (20, 30, 40 and 50 cm between rows). The results of experiment 2 indicated that there was no significant effect for spacing and that the cultivars presented statistically different averages. Thus, it can be concluded that the epicotyl length of soybean seedlings, grown in the field in Rio Paranaíba in the state of Minas Gerais and evaluated at the V2 stage of development, was not influenced by the distance between the sowing lines and that the cultivar 96R10 showed the highest and 98Y21 the lowest mean epicotyl length of soybean seedlings, grown in the field in Rio Paranaíba in the state of Minas Gerais and evaluated at the V2 stage of development.

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Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Epicotyl length in seedlings of soybean cultivars subjected to reduced inter-row spacing

Gontijo¹,

Sousa

Matsuo

et al. 2021

ASB J.

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“…Reports have shown that yield estimates for the 2017/2018 season is of 3,258 Kg/ha, which agrees with the technological packages used, becoming the second greatest average productivity in the country. Part of this success is the result of genetic improvement programs developed by Brazilian research institutes and universities (Bortolotto et al, 2015;Camargos, Campos, Alves, Ferreira, & Matsuo, 2019;Harada, Gonçalves, Kiihl, & Destro, 2015;Oda et al, 2015;Silva et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Genetic parameters estimate and characters analysis in phenotypic phase of soybean during two evaluation periods

Hanyu

Costa

Cecon

et al. 2020

ASB J.

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Recent studies have shown the need to identify new potential additional descriptors for the soybean culture to contribute to cultivars differentiation. Thus, the objective of this study was to estimate generic parameters and analyze characters in the soybean plants in phenotypical phase, during two evaluation periods. The study analyzed 28 genotypes under greenhouse conditions, during two evaluation periods (October and December, 2017), in two stages of development (V2 and V3), regarding hypocotyl and epicotyl length and plant height. Experimental units (an average of two plants) were displayed in randomized blocks with four replicates. An individual and joint analysis of variance were conducted, and coefficients of experimental variation and genotypic determination were estimated for each character analyzed as well as the ratio between the experimental and genetic variation coefficients. Next, mean tests and the analysis of the phenotypic and genotypic correlation were carried out. Results showed that the genotypes analyzed differed in regard to hypocotyl and epicotyl length and plant height, at the V2 and V3 stages of development. In addition, the estimated magnitude of the genetic parameters and genotypic correlations showed genetic influence on the phenotypic expression of the hypocotyl and epicotyl length and plant height at the V2 and V3 stages of development.

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“…Epicotyl length (EL), an important complicated and agronomically trait, was significantly related to plant density and sowing depth of soybean ( Camargos et al., 2019 ). EL exhibited the higher genetic variability at the early developmental stages of soybean, especially at V 2 and V 3 development stages ( Matsuo et al., 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association studies for soybean epicotyl length in two environments using 3VmrMLM

Hong

Chen

et al. 2022

Front. Plant Sci.

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Germination of soybean seed is the imminent vital process after sowing. The status of plumular axis and radicle determine whether soybean seed can emerge normally. Epicotyl, an organ between cotyledons and first functional leaves, is essential for soybean seed germination, seedling growth and early morphogenesis. Epicotyl length (EL) is a quantitative trait controlled by multiple genes/QTLs. Here, the present study analyzes the phenotypic diversity and genetic basis of EL using 951 soybean improved cultivars and landraces from Asia, America, Europe and Africa. 3VmrMLM was used to analyze the associations between EL in 2016 and 2020 and 1,639,846 SNPs for the identification of QTNs and QTN-by-environment interactions (QEIs)”.A total of 180 QTNs and QEIs associated with EL were detected. Among them, 74 QTNs (ELS_Q) and 16 QEIs (ELS_QE) were identified to be associated with ELS (epicotyl length of single plant emergence), and 60 QTNs (ELT_Q) and 30 QEIs (ELT_QE) were identified to be associated with ELT (epicotyl length of three seedlings). Based on transcript abundance analysis, GO (Gene Ontology) enrichment and haplotype analysis, ten candidate genes were predicted within nine genic SNPs located in introns, upstream or downstream, which were supposed to be directly or indirectly involved in the process of seed germination and seedling development., Of 10 candidate genes, two of them (Glyma.04G122400 and Glyma.18G183600) could possibly affect epicotyl length elongation. These results indicate the genetic basis of EL and provides a valuable basis for specific functional studies of epicotyl traits.

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The effect of soil volume, plant density and sowing depth on soybean seedlings characters

Cited by 9 publications

References 15 publications

Epicotyl length in seedlings of soybean cultivars subjected to reduced inter-row spacing

Epicotyl length in seedlings of soybean cultivars subjected to reduced inter-row spacing

Genetic parameters estimate and characters analysis in phenotypic phase of soybean during two evaluation periods

Genome-wide association studies for soybean epicotyl length in two environments using 3VmrMLM

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