Reserve mobilization in soybean seeds under water restriction after storage

Oliveira, Thaísa Fernanda; Santos, Heloísa Oliveira dos; Carvalho, Rafaela Aparecida de; Silva, Hellismar Wakson da; Pires, Raquel Maria de Oliveira; Carvalho, Everson Reis

doi:10.1590/2317-1545v42231384

Cited by 7 publications

(5 citation statements)

References 14 publications

(34 reference statements)

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“…Soybean seeds with a high percentage of germination and vigor result in plants that grow and develop quickly, regardless of edaphoclimatic conditions, culminating in a rapid establishment of crops and closing of the lines, which also helps the control of weeds (Krzyzanowski et al, 2018). Seeds with higher physiological quality result in seedlings with a greater dry matter accumulation (Oliveira et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Outcomes of water deficit stress on the physiological quality of soybean seeds

2022

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This study aimed to compare the physiological seed quality of soybean cultivars produced under or without water deficit stress. Seed samples of three soybean cultivars produced in the 2019/2020 crop season were collected in a rural property and in a company that obtains the cultivars. In the rural property, the seeds were produced under water deficit stress and high temperatures during the crop’s and were characterized by the presence of greenish seeds. In the company that obtains the cultivars, the sample consisted of a certified seed lot produced under normal rainfall and temperature conditions, without greenish seeds. Germination, average germination time, germination speed index, average germination speed, the number of normal and abnormal seedlings, the seedling height and dry weight, the root evaluations (length, surface area, volume, average diameter and dry mass) and the total seedling dry mass were also evaluated. Soybean seeds produced under water deficit stress showed a reduction in physiological quality directly proportional to the percentage of greenish seeds present in each seed lot. The occurrence of water deficit stress on the soybean in the reproductive and maturation stages negatively impacts the soybean crop installation in the subsequent season due to the low physiological seed quality.

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Section: Resultsmentioning

confidence: 99%

Outcomes of water deficit stress on the physiological quality of soybean seeds

2022

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“…As observed in this study, the water restrictions imposed on the plants were responsible for reducing the 1000-seed weight (Table 3). T. F. Oliveira et al (2020) observed that soybean seeds under drought had a higher consumption and lower translocation of reserves to the embryo, reducing the seedling vigor. Therefore, the results found can be related to the efficiency of reserve translocation from the wheat plants to the seeds, without, however, affecting yield.…”

Section: Resultsmentioning

confidence: 99%

Yield and physiological quality of wheat seeds produced under different irrigation depths and leaf Silicon

Gama

Oliveira

Pinheiro

et al. 2021

Semina: Ciênc. Agrár.

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Water availability is one of the main factors responsible for wheat productivity, as well as the quality of the produced seeds. Silicon (Si) has an important role in mitigating the effects of various biotic and abiotic stresses. Thus, Si application can be used to mitigate the effects of different irrigation depths on the production and quality of wheat seeds. The work aimed to evaluate the yield and physiological quality of wheat seeds produced from plants fertilized with leaf Si and grown under different irrigation depths. The experiment was laid out in a split-plot randomized block design, with four replications. The plots consisted of three irrigation depths (0, 50, and 100% of the total irrigation requirement [TIR]). In the subplots, Si treatments were allocated (without application [0 mM] and 5 mM SiO2, applied at the tillering stage). The following parameters were evaluated: water balance of the system; soil moisture; yield; thousand seed weight; germination; electrical conductivity; accelerated aging; seedling length and emergence. The water balance of the system was negative for the 0% TIN irrigation depth after anthesis and there was less soil moisture in this depth. There was no effect of irrigation depths and Si application on plant yield. The smaller irrigation depths imposed reduced the thousand seed weight and the electrical conductivity of the seeds produced. Plants fertilized with Si did not differ in germination, but they produced more vigorous seedlings with greater growth and uniformity.

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“…However, even at reduced temperatures, the metabolism may remain active during storage (Bonjovani & Barbedo, 2019) and is probably more intense in seeds that had not been predried. Wet storage expose the seeds to a stress condition and, according to Oliveira et al (2020), when the amount of water available is not enough to complete germination, it may occur a disordinated consumption of reserves, leading to viability loss.…”

Section: Resultsmentioning

confidence: 99%

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

et al. 2021

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Some species of the Lauraceae family produce seeds that are generally sensitive to desiccation, which makes them difficult to store. The objective of this study was to characterize changes in seed quality of C. aschersoniana from two lots, as well in the physiological and cellular aspects during 12 months of storage. Seeds were stored with their original moisture content (MC) or after pre-drying to 35% MC in a cold chamber (5 °C) at a relative humidity of 40%. Seeds were sampled and tested at time 0, 3, 6 and 12 months of storage regarding to moisture content, germination and ultrastructural features. The seeds were dispersed with dormancy that was overcame by the cold storage condition and the reserves in undried seeds were partly consumed during storage. Both undried and pre-dried seeds remained viable for at least 12 months.

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Reserve mobilization in soybean seeds under water restriction after storage

Cited by 7 publications

References 14 publications

Outcomes of water deficit stress on the physiological quality of soybean seeds

Outcomes of water deficit stress on the physiological quality of soybean seeds

Yield and physiological quality of wheat seeds produced under different irrigation depths and leaf Silicon

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

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