Effect of crop and machine parameters on threshing effectiveness and seed quality of soybean

Singh, K. N.; Singh, Balraj

doi:10.1016/0021-8634(81)90076-7

Cited by 17 publications

(20 citation statements)

References 4 publications

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“…Soybean seed is most sensitive to mechanical injury. There are several report regarding mechanical damage to soybean seed influenced by seed moisture content (Paulsen et al, 1981, Singh and Singh, 1981and Prakobboon, 1982, presence and distribution of hourglass cells in seed coat (Pereira andAndrew, 1985, Kuchlan et al, 2010b), thickness of seed coat (Agrawal and Menon, 1974) but rarely any one has reported the compactness of seed coat in relation to mechanical damage. Compactness of seed coat determines amount of depression of seed coat on application of mechanical forces on the surface of seed.…”

Section: Seed Coat Protein Content and Protein Profilementioning

confidence: 99%

Influence of seed coat compactness around cotyledons, protein andmineral composition on mechanical strength of soybean[Glycine max (L.) Merrill] seed coat

Kuchlan¹,

Kuchlan²,

Onkar³

et al. 2017

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The critical problem of soybean seed is susceptibility to mechanical processes due to structural limitations of seed and seed coat. The X-radiography of soybean seed revealed the orientation of seed coat around the cotyledons and cultivars like JS 335, JS 9752, JS 71-05, JS 95-60, MACS 124, Pusa 40, Punjab 1 and Type 49 had very compact seed coat around cotyledons. In NRC 12, NRC 37, RKS 18 and SL 525 where the gap between seed coat and cotyledons was significantly very high and non uniform making seed coat very much vulnerable to cracking. Seed coat minerals- calcium, silicon, zinc, iron and lignin content were found to vary significantly among cultivars. Significant genotypic variability for strength of seed coat was observed among the soybean cultivars. A very close relationship was found between strength of seed coat and seed coat compactness. Highly significant correlation was found between mechanical strength and seed coat lignin, iron and zinc content. Quantitative and qualitative variation for seed coat protein among soybean cultivars was revealed and higher protein content was found linked with mechanically strong seed coat. The result revealed that selection for these seed coat parameters in varietal improvement programme may be very fruitful for development of varieties having resistance to field weathering and mechanical damage.

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Section: Seed Coat Protein Content and Protein Profilementioning

confidence: 99%

Influence of seed coat compactness around cotyledons, protein andmineral composition on mechanical strength of soybean[Glycine max (L.) Merrill] seed coat

Kuchlan¹,

Kuchlan²,

Onkar³

et al. 2017

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“…De acordo com os resultados, observa-se que, em geral, o produto com teor de umidade de 10,65% apresentou menores valores de perda que aquele com teor de umidade de 14,10%, uma vez que, quanto menor o teor de umidade de colheita, maior é a facilidade de debulha das vagens. Resultados semelhantes foram obtidos por Singh & Singh (1981) e Boller et al (1998). Outro ponto que pode ter influenciado os valores de perda no sistema de trilha e separação, é a diferença entre a produtividade.…”

Section: Resultsunclassified

“…Analisando-se os dados de perda total verifica-se que os testes com teor de umidade de 10,65% apresentaram menores valores que os testes com teor de umidade de 14,10%. Resultados semelhantes foram obtidos por Singh & Singh (1981) e Boller et al (1998).…”

Section: Resultsunclassified

Avaliação de perdas em uma colhedora de fluxo axial para feijão

Souza¹,

Queiroz²,

Cecon³

et al. 2001

Rev. bras. eng. agríc. ambient.

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Na avaliação de máquinas de colheita é importante a determinação da capacidade de processamento e das perdas ocorridas no processo, razão pela qual este trabalho teve por objetivo avaliar as perdas e a capacidade de colheita de uma colhedora de arrasto de fluxo axial, na colheita de feijão. Testes de campo foram realizados sob diferentes condições de trabalho. A partir dos dados obtidos, pode-se concluir que a maior perda ocorreu na plataforma de recolhimento, representando 49,30% da perda total da colhedora, enquanto as perdas no sistema de trilha e separação e de limpeza foram de 43,61 e 7,09%, respectivamente. A capacidade de colheita máxima atingida pela máquina foi de 6,56 t h-1.

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“…Wheat seed viability is reduced due to mechanical damage under such conditions [20]. Further, such seed damage has been described for other crops, including navybeans and soybean [21], and in relatively small seeded grain amaranth as well [22]. It is generally recommended that the lowest effective drum speed be used, since higher speeds invariably lead to such losses.…”

Section: Discussionmentioning

confidence: 99%

Systematic Errors Introduced into Sorghum Grain Yield Data: Does the Multiseed (<i>msd</i>) Trait Increase Sorghum Seed Yield?

Gitz¹,

Baker²,

Xin³

et al. 2019

AJPS

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Multiseed (msd) mutant sorghum [Sorghum bicolor (L.) Moench] lines with greatly increased seed numbers were developed. It was originally thought that the msd trait could increase grain yield several times in comparison with the wild type from which the mutant was derived. However, in a small plot trial, msd seed yield decreased when compared to the parent line. Herein we report results that msd seed yield remained either unchanged or slightly increased in comparison to the parent line. We suggest that attempts to measure msd sorghum seed yield were complicated due to systematic errors associated with the post-harvest processing methods, including threshing and pneumatic winnowing equipment that was used for harvest. That is, seed recovery and seed loss from individual panicles were affected by the post-harvest processing. When evaluating sorghum grain yield of types with different seed sizes, threshing and seed cleaning harvesting methods should be optimized for each sorghum line.

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Effect of crop and machine parameters on threshing effectiveness and seed quality of soybean

Cited by 17 publications

References 4 publications

Influence of seed coat compactness around cotyledons, protein andmineral composition on mechanical strength of soybean[Glycine max (L.) Merrill] seed coat

Influence of seed coat compactness around cotyledons, protein andmineral composition on mechanical strength of soybean[Glycine max (L.) Merrill] seed coat

Avaliação de perdas em uma colhedora de fluxo axial para feijão

Systematic Errors Introduced into Sorghum Grain Yield Data: Does the Multiseed (<i>msd</i>) Trait Increase Sorghum Seed Yield?

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Effect of crop and machine parameters on threshing effectiveness and seed quality of soybean

Cited by 17 publications

References 4 publications

Influence of seed coat compactness around cotyledons, protein andmineral composition on mechanical strength of soybean[Glycine max (L.) Merrill] seed coat

Influence of seed coat compactness around cotyledons, protein andmineral composition on mechanical strength of soybean[Glycine max (L.) Merrill] seed coat

Avaliação de perdas em uma colhedora de fluxo axial para feijão

Systematic Errors Introduced into Sorghum Grain Yield Data: Does the Multiseed (&lt;i&gt;msd&lt;/i&gt;) Trait Increase Sorghum Seed Yield?

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Systematic Errors Introduced into Sorghum Grain Yield Data: Does the Multiseed (<i>msd</i>) Trait Increase Sorghum Seed Yield?