Seed Nutrition and Quality, Seed Coat Boron and Lignin Are Influenced by Delayed Harvest in Exotically-Derived Soybean Breeding Lines under High Heat

Bellaloui, Nacer; Smith, James R.; Mengistu, Alemu

doi:10.3389/fpls.2017.01563

Cited by 27 publications

(14 citation statements)

References 51 publications

(101 reference statements)

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“…Seed damage grading was conducted using Federal Grain Inspection Service (2013) standards, as detailed by Bellaloui et al. (2017).…”

Section: Methodsmentioning

confidence: 99%

Responses of seed yield, quality, and composition to the harvest‐aid paraquat in soybean grown in Mississippi

Bellaloui¹,

Smith²,

Ray³

et al. 2022

Agrosystems Geosci & Env

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Paraquat is used as a harvest-aid to desiccate green tissues for increasing harvest efficiency and maintaining seed quality. However, its application can cause significant crop damage and yield loss if applied too early. Limited information is available on determining the optimum time for applying paraquat. Therefore, the objectives of this study were to investigate the effects of the timing (critical stages of seed-fill) of paraquat application on soybean seed yield, seed quality (germination, viability, hard-seed, and seed damage), and seed composition. Field experiments were conducted in 2019 and 2020 at Stoneville, MS. Paraquat was applied at a rate of 0.56 kg a.i. ha -1 at growth stages R6 (full seed-fill), R6.5 (pod cavities completely filled with seeds), or R7 (yellow color/beginning maturity). Cultivars P46A57BX and P48A60X were used. The results showed that the application of paraquat at R6 or R6.5 resulted in significant yield loss for both cultivars in both years, whereas application at R7 resulted in significant yield loss for P46A57BX in both years, but in only 1 yr for P48A60X. Seed germination and viability were significantly increased over the control in 2020 for both cultivars at all three application stages, but with mixed effects in 2019. No seed damage that would result in dockage was observed in any treatment, as seed damage for all treatments was below 2%. Application of paraquat at R6 resulted in significantly higher seed protein, oleic acid, raffinose, and stachyose but lower oil and sucrose. This research demonstrated that the harvest-aid paraquat significantly reduced seed yield, increased seed protein, oleic acid, raffinose, and stachyose when applied before growth stage R7. Therefore, producers should use caution when applying paraquat for harvest efficiency before R7, as they will also likely reduce seed yield the earlier paraquat is applied.

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“…Seed damage grading was conducted using Federal Grain Inspection Service (2013) standards, as detailed by Bellaloui et al. (2017).…”

Section: Methodsmentioning

confidence: 99%

Responses of seed yield, quality, and composition to the harvest‐aid paraquat in soybean grown in Mississippi

Bellaloui¹,

Smith²,

Ray³

et al. 2022

Agrosystems Geosci & Env

Self Cite

View full text Add to dashboard Cite

show abstract

“…Avoiding delayed harvest and optimizing harvest frequency Bellaloui et al (2017) found that delayed harvest in soybean could be beneficial but at the same time could also be disadvantageous. Delayed harvest increased boron and lignin in seed coat.…”

Section: Short Duration Of Carryover Effect Of Shading Treatmentmentioning

confidence: 99%

Acclimating leaf celery plant (Apium graveolens) via bottom wet culture for increasing its adaptability to tropical riparian wetland ecosystem

et al. 2020

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Abstract. Lakitan B, Kartika, Susilawati, Wijaya A. 2021. Acclimating leaf celery plant (Apium graveolens) via bottom wet culture to increase its adaptability to the tropical riparian wetland ecosystem. Biodiversitas 22: 320-328. Bottom-wet culture was set up for acclimating leaf celery plant prior to cultivation at shallow water table conditions. The aim of this research was to evaluate adaptability of leaf celery plants to riparian wetland ecosystem. Leaf celery was selected as potential candidate since natural habitat of its wild relatives is marshlands. Shading at 0%, 20%, and 60% was applied to reduced tropical sunlight intensity. Results of this study indicated that soil moisture was significantly increased in plants exposed to 60% shading, but leaf SPAD value was not significantly affected. Leaf celery is a perennial vegetable that can be frequently harvested. Weekly harvesting was rewarded with optimum yield and good quality leaves, i.e. high SPAD value (45.73 to 51.89). Delaying harvest to 3 weeks increased total yield but 52.12% of the harvested leaves were non-marketable. Mother plant of leaf celery produced suckers, but number of suckers only moderately correlated with yield (R2 = 0.56). Plants exposed to 60% shading produced significantly less suckers (9.00) than those exposed to full sunlight (12.46) and 20% shading (12.88) Use of zero intercept linear regression model, with length of leaf midrib (LLM) x leaf wingspan (LWS) as predictor, resulted in a geometrically based and accurate leaf area estimation model (LA = 0.3431(LLM x LWS); R2 = 0.87) for compound leaves of leaf celery plant. In conclusion, the most crucial factor in optimizing quantity and quality of yield was weekly harvesting focusing on marketable-size leaves.

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“…The chemical composition, structural arrangement and intercellular substances present in the seed coat layers will determine its degree of permeability (Qutob, Ma, Peterson, Bernards, & Gijzen, 2008;Vu, Velusamy, & Park, 2014). In this context, the influence of lignin on this characteristic has been highlighted by Kuchlan, Dadlani, and Samuel (2010) and Bellaloui, Smith, and Mengistu (2017). In addition, the high seed coat lignin content gives seeds lower permeability, making them less susceptible to deterioration (Marwanto & Marlinda, 2003).…”

Section: Introductionmentioning

confidence: 99%

Water absorption and storage tolerance of soybean seeds with contrasting seed coat characteristics

et al. 2021

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Seed coat characteristics may be related to seed quality and longevity, attracting the interest of breeding programs. This study aimed to evaluate the relationship between the water absorption parameters and storage tolerance of soybean seeds with contrasting seed coat characteristics. For this purpose, seeds of five soybean cultivars with different seed coat colors and lignin contents were used. Before storage, the seed coat lignin content, moisture content, water absorption rate in 11 hydration periods (1, 2, 3, 4, 5, 6, 7, 8, 24, 32, and 48 hours), hydration speed index, germination, viability, and seed vigor were determined. After six months of storage in a dry and cold chamber (at 11ºC and 54% relative humidity [RH]) and uncontrolled environment (at 25ºC and 71% RH), the seeds were evaluated for germination, viability, and vigor to quantify changes in their physiological quality during storage and relate them to the seeds water absorption parameters for the different cultivars. The seed coat lignin content is negatively correlated with the seeds water absorption parameters. Soybean cultivars have different storage tolerance levels. Seeds that absorb larger amounts of water have lower tolerance to deterioration related to temperature and relative humidity fluctuations that occur in storage under uncontrolled conditions, negatively affecting the physiological potential of seeds.

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Seed Nutrition and Quality, Seed Coat Boron and Lignin Are Influenced by Delayed Harvest in Exotically-Derived Soybean Breeding Lines under High Heat

Cited by 27 publications

References 51 publications

Responses of seed yield, quality, and composition to the harvest‐aid paraquat in soybean grown in Mississippi

Responses of seed yield, quality, and composition to the harvest‐aid paraquat in soybean grown in Mississippi

Acclimating leaf celery plant (Apium graveolens) via bottom wet culture for increasing its adaptability to tropical riparian wetland ecosystem

Water absorption and storage tolerance of soybean seeds with contrasting seed coat characteristics

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