Effect of different storage conditions in recalcitrant seeds of holm oak (Quercus ilex L.) during germination

Pasquini, S.; Braidot, Enrico; Petrussa, Elisa; Vianello, Angelo

doi:10.15258/sst.2011.39.1.14

Cited by 10 publications

(8 citation statements)

References 25 publications

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“…However, similar differences among provenances in germination rate have been observed. Pasquini et al (2011) reported for Holm oak germination percentages of two seed lots (68% and 63%) very similar to those observed in the present study.…”

Section: Discussionsupporting

confidence: 92%

Germination and seedling growth of holm oak (Quercus ilex L.): effects of provenance, temperature, and radicle pruning

Çalışkan¹

2014

iForest

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Section: Discussionsupporting

confidence: 92%

Germination and seedling growth of holm oak (Quercus ilex L.): effects of provenance, temperature, and radicle pruning

Çalışkan¹

2014

iForest

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“…Climate features may influence seed production during the maturation and adaptation of a species to a given environment. For example, Quercus ilex L. recalcitrant seeds from different geographic regions showed similar physiological features except for electrical conductivity, which was higher for a seed lot characterized by restrictions in water availability during maturation (Pasquini et al 2011). When electrical conductivity values were compared in the present study, the MG provenance had higher values than the RS provenance for both fresh and stored seeds; however, viability was high for both for a period of one year according to germination tests.…”

Section: Discussionmentioning

confidence: 48%

Viability of recalcitrant Araucaria angustifolia seeds in storage and in a soil seed bank

et al. 2019

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Araucaria angustifolia (Bertol.) Kuntze is a representative species of the Mixed Ombrophilous Forest in the Atlantic Forest Biome of Brazil. The development of a germplasm conservation protocol for long-term seed bank storage is compromised for this species, as it is sensitive to desiccation. Furthermore, in situ establishment of a soil seed bank in its natural habitat may be limited. This study evaluates the storability of two provenances of A. angustifolia seeds and their behavior in an artificial soil seed bank in two forest environments (understory and edge). Results show that both seed provenances may be stored at 5°C for approximately 12 months, retaining high viability. The subsequent decrease in germination was associated with a reduction and an increase in seed water content, as well as with increased electrical conductivity. In the understory environment, seed viability was above 85% for the first 60 days, and at the end of the experiment (270 days), seedlings emerged. However, at the forest edge, there was a total loss of seed viability after 120 days associated with a reduction in water content and high predation. It is concluded, therefore, that short-term storage of A. angustifolia seeds is possible in a cold room, which is fundamental to supply seed demand outside the production period. Forest cover conservation is important for regeneration and conservation of the species.

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“…Seeds are released at the end of the rainy season (Hirano, 2004) and they need to survive through a cold and dry season and remain dormant until the conditions are favorable for germination and seedling development, as reported by Jaganathan et al (2019), who described the behaviour of seeds of several Lauraceae species that are dispersed with nondeep physiological dormancy that can be released by cold stratification. Similar adaptations are common in recalcitrant seeds of temperate species, as seen in acorns oak (Pasquini et al, 2011(Pasquini et al, , 2012. These seeds generally disperse in the autumn and must survive through the winter without germinating, which involves a process of dormancy and some strategy to reduce water loss (Pammenter & Berjak, 2000;Bewley et al, 2013).…”

Section: Resultsmentioning

confidence: 91%

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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Effect of different storage conditions in recalcitrant seeds of holm oak (Quercus ilex L.) during germination

Cited by 10 publications

References 25 publications

Germination and seedling growth of holm oak (Quercus ilex L.): effects of provenance, temperature, and radicle pruning

Germination and seedling growth of holm oak (Quercus ilex L.): effects of provenance, temperature, and radicle pruning

Viability of recalcitrant Araucaria angustifolia seeds in storage and in a soil seed bank

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

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