Physiological and enzymatic changes in soybean seeds submitted to harvest delay1

Zuffo, Alan Mário; Júnior, Joacir Mario Zuffo; Carvalho, Everson Reis; Steiner, Fábio; Zambiazzi, Everton Vinícius

doi:10.1590/1983-40632017v4749811

Cited by 9 publications

(8 citation statements)

References 17 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Trop., Goiânia, v. 48, n. 3, p. 261-270, Jul./Sep. 2018 indications of vigor, such as seedling emergence, emergence rate index and seedling dry matter, are required (Zuffo et al 2017a and2017b). Thus, although the N levels resulted in lower pathogen incidences (Figure 3b), the application of this nutrient has only a small effect on the other variables evaluated.…”

Section: Sources Of Variationmentioning

confidence: 99%

See 1 more Smart Citation

Quality of soybean seeds in response to nitrogen fertilization and inoculation with Bradyrhizobium japonicum 1

Zuffo

Steiner

Busch

et al. 2018

Pesqui. Agropecu. Trop.

Self Cite

View full text Add to dashboard Cite

Nitrogen fertilization may interfere in the quality of soybean seeds. This study aimed to determine the physiological and sanitary quality of soybean seeds, in response to levels and times of nitrogen (N) application associated with Bradyrhizobium japonicum inoculation. Treatments were arranged in a randomized block design, in a 2 × 3 × 4 factorial arrangement [two soybean cultivars (BRS 1074 IPRO and ST 797 IPRO), three application times (sowing, 30 and 50 days after emergence) and four N levels (0 kg ha-1, 20 kg ha-1, 40 kg ha-1 and 60 kg ha-1), with four replicates. The 1,000-seed mass, moisture content, germination rate, seedling height, shoot length, primary root length, total seedling dry matter, electrical conductivity, mechanical damage, vigor and viability (tetrazolium test) and sanitary quality of the seeds were measured. The use of mineral N, associated with the inoculation of B. japonicum bacteria, does not prove to be consistent, in terms of its effects on the physiological quality of soybean seeds, although the incidence of pathogens may be reduced.

show abstract

Section: Sources Of Variationmentioning

confidence: 99%

“…resulting in 119.0 million tons of grains (Conab 2018). Due to its economic importance, it is crucial that soybean seed growers produce high-quality seeds to ensure more vigorous seedlings and the successful establishment of plants in the field (Zuffo et al 2017a).…”

Section: Abstract Resumomentioning

confidence: 99%

Quality of soybean seeds in response to nitrogen fertilization and inoculation with Bradyrhizobium japonicum 1

Zuffo

Steiner

Busch

et al. 2018

Pesqui. Agropecu. Trop.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Soybean is the main oilseed crop in Brazil and the world, especially on account of wide socioeconomic importance for the world agricultural sector. Therefore, the use of high-quality seeds is essential for the proper establishment of soybean agricultural fields (Zuffo et al, 2017). The proper plant establishment and development depends on balanced mineral nutrition management and this factor is essential for the commercial production of seeds with high vigor and high physiological quality (Carvalho;Nakagawa, 2012).…”

Section: Introductionmentioning

confidence: 99%

Bradyrhizobium spp. inoculation associated with nitrogen application enhances the quality of soybean seeds

Zuffo¹,

Ratke

Aguilera

et al. 2021

Ciênc. agrotec.

Self Cite

View full text Add to dashboard Cite

The physiological seed quality can be altered by nutritional management of the soybean crop, especially by the fertilization with nitrogen (N), which is a structural component of several organic compounds, including proteins, and has an important catalytic role in the activation of several enzymes. The aim of this research was to investigate the effects of sources and application rates of mineral N fertilizer associated with inoculation of Bradyrhizobium spp. on physiological quality of soybean seeds. The treatments were arranged in a completely randomized block design, in a 3 × 5 factorial arrangement [three N fertilizer sources (Bradyrhizobium spp. inoculation; Bradyrhizobium spp. inoculation + urea application; and, Bradyrhizobium spp. inoculation + ammonium sulfate application) and five N application rates (0, 50, 100, 150 and 200 kg N ha-1)], with four replicates. Nitrogen fertilizer was applied in topdressing at R2 stage when soybean plants were in full flowering. The quality parameters evaluated in soybean seeds were: 1,000-seed mass, seed protein content, germination, first germination count test, seedling emergence, emergence speed index, accelerated aging, electrical conductivity, vigor and viability of seeds by tetrazolium test. The application of 50 kg N ha-1 of mineral fertilizer (ammonium sulfate or urea) associated with the Bradyrhizobium spp. inoculation enhanced the physiological quality of soybean seeds, resulting in higher seed germination percentage and higher emergence and seedling emergence speed index. The application of ammonium sulfate or urea (50 kg N ha-1) at full flowering of soybean plants inoculated with Bradyrhizobium spp. can improve the physiological quality of soybean seeds.

show abstract

“…Therefore, cotyledonary cells of the seeds under simulated precipitation were more exposed to environmental conditions, and their deterioration process increased, which was reinforced by the results of the physiological and X-ray tests. Some studies with soybean seeds subjected to deterioration (whether by moisture, temperature, or harvest delay) report reduction in seed vigor, with differences mainly observed among factors such as genotype and intensity of deterioration (Forti et al, 2013;Castro et al, 2016;Huth et al, 2016;Zuffo et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Weathering deterioration in pre-harvest of soybean seeds: physiological, physical, and morpho-anatomical changes

Pinheiro

Dias

Medeiros

et al. 2021

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

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, and 180 mm of precipitation at pre-harvest phase. Each rainfall level was divided into two applications at an interval of 72 h: 60 mm (30 + 30), 120 mm (60 + 60), and 180 mm (90 + 90). After harvest, the seeds were evaluated for germination, vigor, physical and morpho-anatomical properties. Weathering deterioration induced by simulated rainfall at the pre-harvest phase contributes to the reduction in soybean seed germination and vigor and is conditioned by the soybean genotype. The increase in intensity of simulated rainfall led to a more significant weathering damage in seeds, as evidenced by the X-ray and tetrazolium test. Cultivars DM 6563 and BMX Potência were more susceptible, while NA 5909 was less susceptible to weathering deterioration (especially at the highest level; 120 mm and 180 mm). Anatomical changes caused by weathering deterioration lead to cell compaction and rupture, mainly in the cell layers of the hourglass and parenchyma, forming intracellular spaces. The presence of weathering damage caused a reduction in physiological soybean seed quality.

show abstract

Physiological and enzymatic changes in soybean seeds submitted to harvest delay1

Cited by 9 publications

References 17 publications

Quality of soybean seeds in response to nitrogen fertilization and inoculation with Bradyrhizobium japonicum 1

Quality of soybean seeds in response to nitrogen fertilization and inoculation with Bradyrhizobium japonicum 1

Bradyrhizobium spp. inoculation associated with nitrogen application enhances the quality of soybean seeds

Weathering deterioration in pre-harvest of soybean seeds: physiological, physical, and morpho-anatomical changes

Contact Info

Product

Resources

About