Embebição e qualidade fisiológica de sementes de tremoço branco tratadas com micronutrientes

Almeida, Lilian Guimarães de; Brandão, Aldeane Sousa; Rossetto, Cláudia Antônia Vieira

doi:10.1590/0103-8478cr20130660

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…Different vehicles for water provide different soaking rates, diminishing or accentuating the risks for damages to the embryonic axis, caused by quick soaking (Farooq et al, 2012;Sediyama et al, 2012;Almeida et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Spray volumes in the industrial treatment on the physiological quality of soybean seeds with different levels of vigor

et al. 2017

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-The aim of this work was to evaluate the effect of different spray volumes, via industrial treatment, on the physiological quality of soybean seeds with different levels of vigor. The experimental design was completely randomized in a 2x5 factor scheme, with four replications. Factors consisted in two levels of seed vigor (high and low) and five spray volumes (0, 600, 1200, 1800 and 2400 mL. 100 kg -1 ). Products used to obtain the volumes were: fungicide (carbendazin + thiram); insecticide (imidacloprid + thiodicarb); nematicide (abamectin); micronutrients (cobalt, molybdenum and zinc); polymer (peridiam); biostimulants (kinetin + gibberellic acid) and inoculum (Bradyrhizobium japonicum). The used cultivars were BRS 360 RR and BRS 1010 IPRO. The physiological seed quality was determined by the following evaluations: germination, first count of the germination test, seedling emergence in sand, emergency speed index, total length of shoot and root of the seedlings. In the different spray volumes, high vigor soybean seeds have higher physiological quality than low vigor seeds. The increased spray volumes in seed treatments reduce the physiological quality of low vigor soybean seeds.

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Section: Resultsmentioning

confidence: 99%

Spray volumes in the industrial treatment on the physiological quality of soybean seeds with different levels of vigor

et al. 2017

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“…The triphasic pattern during seed imbibition proposed by Bewley and Black [ 38 ] seems not to be a general rule [ 39 ]; other studies have failed to identify a triphasic pattern of seed imbibition. For example, within the Fabaceae family, no triphasic pattern was found in Lupinus albus L. seeds when the data were expressed by water content [ 40 ], and the same was observed in Glycine max (L.) Merr. seeds [ 41 ].…”

Section: Discussionmentioning

confidence: 96%

The Effect of Heat Shock on Seed Dormancy Release and Germination in Two Rare and Endangered Astragalus L. Species (Fabaceae)

Cuena Lombraña,

Dessì,

Podda

et al. 2024

Plants

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Many Astragalus species exhibit seeds with physical dormancy (PY), but little is known about the ecological context of this dormancy. We focused on A. maritimus and A. verrucosus, two threatened Sardinian endemic species inside the subgenus Trimeniaeus Bunge. Fresh seeds collected from the only two respective known populations were used to investigate the effect of mechanical scarification, heat shock, and water imbibition processes on PY release and germination. PY can be overcome through mechanical scarification of the water-impermeable seed coats, while no dormancy break was detected, nor a subsequent increase in seed germination due to fire-induced heat. This suggests that fire does not trigger dormancy release and seed germination in these species. The seeds tolerate relatively high heat shock temperatures (up to 120 and 100 °C for A. verrucosus and A. maritimus, respectively), but after 120 °C for 10 min, the number of dead seeds increases in both species. These facts suggest the capacity to develop a soil seed bank that can persist after fires and delay germination until the occurrence of optimal conditions. As regards water imbibition, both Astragalus species did not show the typical triphasic pattern, as germination started without further water uptake. This study emphasizes the significance of understanding germination processes and dormancy in threatened species. In fire-prone ecosystems, PY dormancy plays a crucial role in soil seed bank persistence, and it may be selectively influenced by post-fire conditions. Understanding such adaptations provides useful insights into conservation strategies.

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“…There is no loss to this variable when the seeds are coated, but the decrease is significant when the fertilizer is added to the coating. Almeida et al (2015), studying the soaking and physiological quality of white lupin seeds treated with micronutrients, observed no significant effects on the dry mass weight and on the length of the seedling between lots and pre-sowing treatments.…”

Section: Laboratorymentioning

confidence: 95%

Coating with fungicide and different doses of fertilizer in vinhatico seeds

Sousa¹,

Vieira²,

Amorim³

et al. 2016

Afr. J. Biotechnol.

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Plathymenia reticulata Benth occurs in open formations of the Brazilian Cerrado and Atlantic Forest. The seeds are affected by pathogens that reduce germination. The use of fungicides is defined for many species, but, for forest species, further studies are necessary. Thus, the aim of this study was to evaluate and identify the physical and physiological quality of mahogany seeds that are coated with fertilizer and fungicide. The treatments were: seed coating with sand + lime + fungicide with different doses of fertilizers. The seeds were evaluated in the laboratory and in a greenhouse. The experiment was conducted in a completely randomized design with four replications of 50 seeds. The treatment with 50 g of fertilizer had the highest weight out of 1000 seeds. There were no infested seedlings among the coated seeds. The coating maintained the quality of the seeds and the coating with high doses of fertilizer inhibited the germination, germination speed index (GSI), emergence and emergence speed index (ESI) of the mahogany seed.

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Embebição e qualidade fisiológica de sementes de tremoço branco tratadas com micronutrientes

Abstract: RESUMO As sementes de tremoço branco, devido ao alto teor de óleo e proteína, estão sendo cada vez mais utilizadas na

Cited by 6 publications

References 12 publications

Spray volumes in the industrial treatment on the physiological quality of soybean seeds with different levels of vigor

Spray volumes in the industrial treatment on the physiological quality of soybean seeds with different levels of vigor

The Effect of Heat Shock on Seed Dormancy Release and Germination in Two Rare and Endangered Astragalus L. Species (Fabaceae)

Coating with fungicide and different doses of fertilizer in vinhatico seeds

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