scholarly journals Genetic variation in an ephemeral mudflat species: The role of the soil seed bank and dispersal in river and secondary anthropogenic habitats

2020 ◽  
Vol 10 (8) ◽  
pp. 3620-3635
Author(s):  
Jörg Böckelmann ◽  
Karin Tremetsberger ◽  
Kateřina Šumberová ◽  
Gudrun Kohl ◽  
Heinrich Grausgruber ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Anthropogenic Habitats

The role of the permanent soil seed bank in early stages of a post-agricultural succession in the Inland Pampa, Argentina

Vegetatio ◽  
1988 ◽  
Vol 74 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Evelina D'Angela ◽  
Jos� M. Facelli ◽  
Elizabeth Jacobo
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Early Stages

The role of soil temperature and seed dormancy in the creation and maintenance of persistent seed banks of Nassella trichotoma (serrated tussock) on the Northern Tablelands of New South Wales

2020 ◽  
Vol 42 (2) ◽  
pp. 85
Author(s):  
Annemieke Ruttledge ◽  
Ralph D. B. Whalley ◽  
Gregory Falzon ◽  
David Backhouse ◽  
Brian M. Sindel
Keyword(s):  
Seed Bank ◽  
New South ◽  
Soil Seed Bank ◽  
Seed Banks ◽  
Early Summer ◽  
Secondary Dormancy ◽  
South Wales ◽  
The Creation ◽  
Persistent Soil Seed Bank

A large and persistent soil seed bank characterises many important grass weeds, including Nassella trichotoma (Nees) Hack. ex Arechav. (serrated tussock), a major weed in Australia and other countries. In the present study we examined the effects of constant and alternating temperatures in regulating primary and secondary dormancy and the creation and maintenance of its soil seed bank in northern NSW, Australia. One-month-old seeds were stored at 4, 25°C, 40/10°C and 40°C, in a laboratory, and germination tests were conducted every two weeks. Few seeds germinated following storage at 4°C, compared with seeds stored at 25°C, 40/10°C and 40°C. Nylon bags containing freshly harvested seeds were buried among N. trichotoma stands in early summer, and germination tests conducted following exhumation after each season over the next 12 months. Seeds buried over summer and summer plus autumn had higher germination than seeds buried over summer plus autumn plus winter, but germination increased again in the subsequent spring. Seeds stored for zero, three, six and 12 months at laboratory temperatures were placed on a thermogradient plate with 81 temperature combinations, followed by incubation at constant 25°C of un-germinated seeds. Constant high or low temperatures prolonged primary dormancy or induced secondary dormancy whereas alternating temperatures tended to break dormancy. Few temperature combinations resulted in more than 80% germination.

The role of fire and a long-lived soil seed bank in maintaining persistence, genetic diversity and connectivity in a fire-prone landscape

2015 ◽  
Vol 43 (1) ◽  
pp. 70-84 ◽  
Author(s):  
Donna Bradbury ◽  
Sarah-Louise Tapper ◽  
David Coates ◽  
Shelley McArthur ◽  
Margaret Hankinson ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Seed Bank ◽  
Soil Seed Bank

Role of indehiscent pericarp in formation of soil seed bank in five cold desert Brassicaceae species

Plant Ecology ◽  
2017 ◽  
Vol 218 (10) ◽  
pp. 1187-1200 ◽  
Author(s):  
Juan J. Lu ◽  
Dun Y. Tan ◽  
Carol C. Baskin ◽  
Jerry M. Baskin
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Cold Desert ◽  
Brassicaceae Species

The Role of Soil Seed Bank in the Early Stages of Plant Recovery After Fire in a Pinus Pinaster Forest in SE Spain

1996 ◽  
Vol 6 (1) ◽  
pp. 31 ◽  
Author(s):  
P Ferrandis ◽  
JM Herranz ◽  
JJ Martínez-Sánchez
Keyword(s):  
Seed Bank ◽  
Pinus Pinaster ◽  
Soil Seed Bank ◽  
Se Spain ◽  
Plant Recovery ◽  
Early Stages ◽  
Fire Effect ◽  
Species Establishment ◽  
Mediterranean Pine

The implication of the viable soil seed bank in the early stages of the plant recovery after fire was studied in a recently burnt Mediterranean pine forest of Pinus pinaster. Seed number contained in soil samples taken inmediately after fire and emergent seedling number recorded in the field during the subsequent year were compared. Although the fire effect was important, available seed density in the soil after fire was relatively high (around 2,200 seeds/m2). A small group of species containing the main shrub species in the unburnt community predominated both in the viable seed bank and field germination after fire. However, these species showed low germination rates in the field, as opposed to species with the lowest presence in the seed bark. The predominance of woody obligate seeders in the seed bark after fire and the high specific correspondence between seed bank and germination in the field, emphasize the important role of the seed bank contained in the soil before fire in the postfire species establishment.

The role of the soil seed bank in the unpredictable habitat of Anthemis chrysantha J. Gay, a critically endangered species

Flora ◽  
2012 ◽  
Vol 207 (12) ◽  
pp. 903-907 ◽  
Author(s):  
Mayra Aguado ◽  
María J. Vicente ◽  
José A. Franco ◽  
Juan J. Martínez-Sánchez
Keyword(s):  
Endangered Species ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Critically Endangered ◽  
Critically Endangered Species
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