2021
DOI: 10.1590/1678-992x-2020-0166
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Weathering deterioration in pre-harvest of soybean seeds: physiological, physical, and morpho-anatomical changes

Abstract: Successive cycles of water absorption and loss favor weathering deterioration, one of the main factors that affect the quality of soybean seeds. This study evaluated the physiological, physical, and morpho-anatomical changes in soybean seeds under weathering deterioration at the pre-harvest phase. Six soybean cultivars (BMX Apolo, DM 6563, NS 5959, NA 5909, BMX Potência, and TMG 1175) were produced in a greenhouse and underwent weathering deterioration through a rainfall simulation system, applying 0, 60, 120,… Show more

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Cited by 14 publications
(16 citation statements)
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“…These results show the large increase in N input in the production system for the subsequent off-season corn crop when the soybean crop cannot be harvested due to excessive rainfall at harvest. The exposure of soybean crops to prolonged periods of rainfall during preharvest makes mechanized harvest technically and economically unfeasible due to the low physical and sanitary quality of the seeds caused by deterioration and fermentation of soybean grains [ 8 , 10 ]. Therefore, in years subject to extreme weather conditions, unharvested soybean residues deposited on the soil surface can result in a surplus of up to 180 kg ha –1 of N for the subsequent crop.…”
Section: Resultsmentioning
confidence: 99%
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“…These results show the large increase in N input in the production system for the subsequent off-season corn crop when the soybean crop cannot be harvested due to excessive rainfall at harvest. The exposure of soybean crops to prolonged periods of rainfall during preharvest makes mechanized harvest technically and economically unfeasible due to the low physical and sanitary quality of the seeds caused by deterioration and fermentation of soybean grains [ 8 , 10 ]. Therefore, in years subject to extreme weather conditions, unharvested soybean residues deposited on the soil surface can result in a surplus of up to 180 kg ha –1 of N for the subsequent crop.…”
Section: Resultsmentioning
confidence: 99%
“…Excessive rainfall in the soybean preharvest period leads to significant crop yield losses by causing direct damage to the qualitative, quantitative, and sanitary aspects of soybean seeds [ 5 , 8 , 9 ]. In extreme situations, the exposure of soybean plants to prolonged periods of rainfall and high moisture content of grains makes mechanized harvest technically and economically unfeasible due to the low physical and sanitary quality of the seeds caused by deterioration and fermentation of soybean grains [ 8 , 10 ].…”
Section: Introductionmentioning
confidence: 99%
“…In the case of soybean, which is highly sensitive to environmental conditions, the phase in which the seed is maintained in the field is critical and promotes the most frequent and significant losses in quality. Among the climatic factors, especially in preharvest, excess water is detrimental to the soybean seed quality, for causing weathering deterioration (Giurizatto et al, 2003;França-Neto et al, 2016;Pinheiro et al, 2021). This damage consists of wrinkling and cracks in the seed coat, due to seed coat expansion and contraction when exposed to alternating cycles of relative humidity, especially associated with high temperatures (Forti et al, 2013;França-Neto et al, 2016).…”
Section: Introductionmentioning
confidence: 99%
“…The presence of weathering damage makes it difficult to produce quality seeds (Shu et al, 2020;Pinheiro et al, 2021), as the physical, sanitary, and physiological attributes of soybean seeds are susceptible to this type of damage. In this sense, Forti et al (2013) observed a reduction in the physiological potential of soybean seeds associated with weathering deterioration.…”
Section: Introductionmentioning
confidence: 99%