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Artículos de revistas sobre el tema "Seed bank"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Leon, Ramon G., and Micheal D. K. Owen. "Artificial and natural seed banks differ in seedling emergence patterns." Weed Science 52, no. 4 (2004): 531–37. http://dx.doi.org/10.1614/ws-03-048r2.

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Artificial weed seed banks are practical for studying seed bank depletion and weed seedling emergence because the number, depth, and species composition of seed banks can be managed. However, no studies have determined whether artificial seed banks are representative of natural seed banks. We compared the emergence of velvetleaf, giant foxtail, and common waterhemp in a natural seed bank, an artificial seed bank with stratified seeds, and an artificial seed bank with nonstratified seeds. Velvetleaf seedling emergence was higher in the nonstratified seed bank in 2001, but no differences were ob

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2

Caballero, I., J. M. Olano, A. L. Luzuriaga, and A. Escudero. "Spatial coherence between seasonal seed banks in a semi-arid gypsum community: density changes but structure does not." Seed Science Research 15, no. 2 (2005): 153–60. http://dx.doi.org/10.1079/ssr2005206.

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Seed banks play a crucial role in arid plant communities because they confer stability and long-term persistence. However, seed banks have high temporal and spatial variability, with dramatic changes in density and composition. The aim of this study was to test whether seasonal change affected seed bank community structure and spatial pattern. Moreover, we wanted to know if the effect driven by environmental factors on the seed bank was constant year round. We sampled the seed bank at 188 points along seven parallel transects through a gypsum system in central Spain. Soil samples were taken tw

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3

Hulme, P. E. "Post-dispersal seed predation and seed bank persistence." Seed Science Research 8, no. 4 (1998): 513–19. http://dx.doi.org/10.1017/s0960258500004487.

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AbstractThis study examines whether post-dispersal seed predators could be an important selective force in determining the seed bank strategies of grassland plants. It tests the hypothesis that species with persistent seed banks should sustain proportionally less predation of buried seeds than species which have transient seed banks and that this should be true irrespective of seed size. Results are drawn from a field experiment examining the relative susceptibility of surface versus buried seeds for 19 herbaceous taxa exhibiting different degrees of seed bank persistence. The data were consis

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4

Hossain, MM, and M. Begum. "Soil weed seed bank: Importance and management for sustainable crop production- A Review." Journal of the Bangladesh Agricultural University 13, no. 2 (2016): 221–28. http://dx.doi.org/10.3329/jbau.v13i2.28783.

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The seed bank is the resting place of weed seeds and is an important component of the life cycle of weeds. Seed banks are the sole source of future weed populations of the weed species both annuals and perennials that reproduce only by seeds. For this reason, understanding fate of seeds in the seed bank can be an important component of overall weed control. When weed seeds enter the seed bank, several factors influence the duration for which seeds persist. Seeds can sense the surrounding environment in the seed bank and use these stimuli to become dormant or initiate germination. Soil and crop

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5

Warr, Susan J., Ken Thompson, and Martin Kent. "Seed banks as a neglected area of biogeographic research: a review of literature and sampling techniques." Progress in Physical Geography: Earth and Environment 17, no. 3 (1993): 329–47. http://dx.doi.org/10.1177/030913339301700303.

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The article highlights a comparatively neglected area of biogeographical research - seed banks and the distribution of seeds in the soil. The article reviews some of the relevant literature on seed banks and the methods for their study. Attention is focused on aspects of seed banks of particular relevance to biogeographers, with detailed examples drawn from seed bank studies in both temperate and tropical environments. In the review of the seed bank literature, the topics covered include the seed banks of successional communities and the size of seed banks in different vegetation types. The sp

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6

Jui, Ray, and Kumar Bordolui Sanjoy. "Role of Seed Banks in the Conservation of Plant Diversity and Ecological Restoration." Research and Reviews: Journal of Environmental Sciences 3, no. 2 (2021): 1–16. https://doi.org/10.5281/zenodo.4922618.

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<em>An appropriate method for conservation of a particular plant gene pool needs extensive approach, collaborate the different ex situ and in situ methods. Gene banks are a type of bio repository that preserves genetic material. According to Dekker, 1997, [12] a seed bank stores </em><em>seeds</em> <em>to preserve </em><em>genetic diversity</em><em>; hence it is a type of </em><em>gene bank</em><em>. There are currently more than 1,000 seed banks exist around the world, varying in type, size and focus. The world's largest secure seed storage is Svalbard Global Seed Vault. Whereas in India,

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7

Salazar, Ana, Guillermo Goldstein, Augusto C. Franco, and Fernando Miralles-Wilhelm. "Timing of seed dispersal and dormancy, rather than persistent soil seed-banks, control seedling recruitment of woody plants in Neotropical savannas." Seed Science Research 21, no. 2 (2011): 103–16. http://dx.doi.org/10.1017/s0960258510000413.

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AbstractA large fraction of tree species forming persistent soil seed-banks and with dormant seeds are expected to be found in strongly seasonal ecosystems such as Neotropical savannas, where seedling recruitment could be highly variable. In the savannas of Central Brazil, we studied seed characteristics (type of dormancy, longevity and moisture content) of 14 representative woody species differing in seed dispersal season. We also studied the dynamics of soil seed-banks and similarity patterns in woody species composition among seed rain, soil seed-bank, seedling bank and standing vegetation

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8

Komulainen, M., M. Vieno, V. T. Yarmishko, T. D. Daletskaja, and E. A. Maznaja. "Seedling establishment from seeds and seed banks in forests under long-term pollution stress: a potential for vegetation recovery." Canadian Journal of Botany 72, no. 2 (1994): 143–49. http://dx.doi.org/10.1139/b94-019.

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Seed germinability of some common dwarf shrubs and seed-bank composition were studied in young pine forests along a pollution gradient from Severonickel smelter in Monchegorsk, northern Russia. Samples for seed germination and seed-bank trials were taken from sites representing different zones of pollution. Generally, germinability of dwarf shrub seeds was not affected by distance from pollution source, except for Empetrum nigrum ssp. hermaphroditium. The average density per site of seedlings that emerged from seed-bank samples varied between 278 and 416 seedlings/m2. Empetrum nigrum ssp. herm

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9

Ebersole, James J. "Role of the seed bank in providing colonizers on a tundra disturbance in Alaska." Canadian Journal of Botany 67, no. 2 (1989): 466–71. http://dx.doi.org/10.1139/b89-065.

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Numbers of germinable seeds in soils from four undisturbed communities at an Alaskan Arctic Coastal Plain site ranged from 70 to 600 m−2 and numbers of distinct taxa were two to nine. Stratified soils contained more germinable taxa than unstratified soils, suggesting that seed banks in Alaskan tundra are more diverse than shown by earlier studies using unstratified soils. In contrast to temperate seed banks, which often contain early successional species no longer present in the vegetation, all seed bank taxa at this site occur within a short distance of the sample sites because of long persis

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10

Graham, AW, and MS Hopkins. "Soil Seed Banks of Adjacent Unlogged Rain-Forest Types in North-Queensland." Australian Journal of Botany 38, no. 3 (1990): 261. http://dx.doi.org/10.1071/bt9900261.

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The size and floristic composition of soil seed banks under four adjacent, unlogged and structurally different rainforest types were assessed by exposing 17 surface soil samples (to 40mm depth) to germination-house conditions. The mean size of the seed bank in the undisturbed forest types was 240 seeds m-2 (s.d. 139). Seeds of secondary species dominated the soil seed banks in all forest types, although weed seeds constituted only 0.6-4.0%. Some forest types had characteristic component secondary species in the buried seed bank. Agglomerative classification and multidimensional scaling analysi

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11

Joshi, Bal Krishna. "Indigenous Seeds, Seed Selection and Seed Bank for Sustainable Agriculture." Grassroots Journal of Natural Resources 04, no. 04 (2021): 13–26. http://dx.doi.org/10.33002/nr2581.6853.040402.

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Indigenous seeds are grown by the farmers over the years with a strong influence from local natural factors. Such seeds have a higher level of intrapopulation variations and the capacity of buffering the adverse factors. Understanding indigenous seeds along with their diversity are useful to diversify their uses, to assess conservation status, to know the factors making farming areas red zone, and to improve their performance. Selection is the simplest and most common method for the improvement of crop varieties. The variation must be created and maintained to impose selection. Different types

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12

Bal, Krishna Joshi. "Indigenous Seeds, Seed Selection and Seed Bank for Sustainable Agriculture." Indigenous Seeds, Seed Selection and Seed Bank for Sustainable Agriculture 4, no. 4 (2021): 14. https://doi.org/10.33002/nr2581.6853.040402.

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Indigenous seeds are grown by the farmers over the years with a strong influence from local natural factors. Such seeds have a higher level of intrapopulation variations and the capacity of buffering the adverse factors. Understanding indigenous seeds along with their diversity are useful to diversify their uses, to assess conservation status, to know the factors making farming areas red zone, and to improve their performance. Selection is the simplest and most common method for the improvement of crop varieties. The variation must be created and maintained to impose selection. Different types

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13

Bavcon, Jože, and Blanka Ravnjak. "Seed banks as a partnership for global plant conservation." Acta Biologica Slovenica 57, no. 1 (2014): 3–13. http://dx.doi.org/10.14720/abs.57.1.15539.

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A seed bank is a collection of plant seeds stored under appropriate conditions in which seeds are periodically checked for their germination ability – viability of seeds. Botanic gardens have been issuing lists of seeds (Index seminum) for several centuries. This old tradition has also encouraged the formation of botanic gardens seed banks. University Botanic Gardens Ljubljana actively works on plant diversity conservation. In 2013, the Garden participated in the collection of seeds for the Millennium Seed Bank in order to contribute to a faster achievement of the goal of seed banking of 25 %

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14

Leckie, Sara, Mark Vellend, Graham Bell, Marcia J. Waterway, and Martin J. Lechowicz. "The seed bank in an old-growth, temperate deciduous forest." Canadian Journal of Botany 78, no. 2 (2000): 181–92. http://dx.doi.org/10.1139/b99-176.

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We assessed the size and composition of the seed bank in 31 plots representing a range of habitats within an old-growth, temperate deciduous forest at Mont St. Hilaire, Québec, Canada. We identified 49 taxa in the seed bank, with an average of 40 species·m-2 and a median density of 1218 seeds·m-2. The most frequent seeds were species of Carex and Rubus, Diervilla lonicera, and Eupatorium rugosum, while seeds of Carex were the most numerous overall. Of the 12 species in the seed bank not found in the forest, 11 were found growing on the developed landscape surrounding this 10-km2 forest fragmen

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15

Allen, P. S., S. E. Meyer, and J. Beckstead. "Predictive model for soil seedbank outcomes in the Pyrenophora semeniperda–Bromus tectorum pathosystem." Plant Protection Science 49, Special Issue (2013): S21—S23. http://dx.doi.org/10.17221/36/2013-pps.

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Pyrenophora semeniperda is abundant in soil seed banks of Bromus tectorum, where it kills a fraction of seeds throughout the year. The pathogen engages in a race with host seeds for endosperm resources; the pathogen success is negatively correlated with seed germination speed. We developed a deterministic model to predict pathosystem outcomes (seed death versus seed escape), using seed bank data from 80 sites collected over a 13-year period. The response variable (killed seeds in the spring seed bank) was regressed on multiple predictor variables (pathogen and host densities at seed dispersal,

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16

Chambers, Jeanne C. "Seed and vegetation dynamics in an alpine herb field: effects of disturbance type." Canadian Journal of Botany 71, no. 3 (1993): 471–85. http://dx.doi.org/10.1139/b93-052.

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Relationships among the aboveground vegetation, seed rain, and seed bank were examined on a late seral herb field characterized by pocket gopher disturbance and on an early seral gravel borrow that had been severely disturbed 35 years ago on the Beartooth Plateau, Montana. Aboveground vegetation cover was assessed by species in twelve 5-m2 plots. Seed rain was sampled during the 1988, 1989, and 1990 growing seasons with pitfall traps, and the soil seed bank was sampled in fall 1989, spring 1990, and fall 1990. The seed rain (filled seeds) on the borrow area ranged from 7730 to 14 009 seeds/m2

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17

Landenberger, Rick E., and James B. McGraw. "Seed-bank characteristics in mixed-mesophytic forest clearcuts and edges: Does "edge effect" extend to the seed bank?" Canadian Journal of Botany 82, no. 7 (2004): 992–1000. http://dx.doi.org/10.1139/b04-080.

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Little is known about the seed banks of mixed-mesophytic forest clearcuts or their associated forest edges. Seed banks were described and compared to better understand how seed density, species richness, and composition change with increasing distance from clearcuts. Thirty-two taxa were found in the seed bank of clearcuts, and 44 were found in adjacent forest edges. Annuals represented 41% of seeds in clearcuts, but only 8% in edges, while trees and shrubs represented 3% in both areas. Seed-bank density and species richness varied significantly within and between clearcuts, but clearcuts were

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18

Wang, Ning, Ju-Ying Jiao, Yan-Feng Jia, and Dong-Li Wang. "Seed persistence in the soil on eroded slopes in the hilly-gullied Loess Plateau region, China." Seed Science Research 21, no. 4 (2011): 295–304. http://dx.doi.org/10.1017/s0960258511000195.

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AbstractThe soil seed-bank is an important component of vegetation dynamics. Its presence affects both ecosystem resistance and resilience. A persistent seed-bank is especially important in disturbed habitats and harsh environments. In the hilly-gullied Loess Plateau region, serious soil erosion causes decreases in soil water capacity and constrains vegetation recolonization. A stable and long-term persistent soil seed-bank is necessary for natural vegetation recolonization. We used an integrated measure of the depth distribution of seeds in the soil and the seasonal dynamics of soil seed-bank

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19

Jarvis, JC, SA McKenna, and MA Rahseed. "Seagrass seed bank spatial structure and function following a large-scale decline." Marine Ecology Progress Series 665 (April 29, 2021): 75–87. http://dx.doi.org/10.3354/meps13668.

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We examined the spatial structure (distribution, density) and function (viability) of the seagrass sediment seed bank, the storage of viable propagules (e.g. seeds, tubers, diaspores) in the sediment over time,in the northern Great Barrier Reef World Heritage Area in Cairns, Queensland, following a large-scale decline in seagrass area. A spatially explicit seagrass seed bank analysis was paired with a long-term annual assessment of seagrass distribution to assess seed bank spatial patterns and their relationship with the recovery and presence of seagrass, and water depth. Four years post-decli

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Morgan, P., and L. F. Neuenschwander. "Seed-bank contributions to regeneration of shrub species after clear-cutting and burning." Canadian Journal of Botany 66, no. 1 (1988): 169–72. http://dx.doi.org/10.1139/b88-026.

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Seed banks contributed significantly to regeneration of early seral shrubs after clear-cutting and fall broadcast burning of dense coniferous forests of the Thuja plicata/Clintonia uniflora habitat type in northern Idaho. Seeds were separated from 36 samples of soil and surface organic matter from 15 uncut forest stands. Total seed density averaged 1151 ± 1896 seeds/m2, and seed density for individual shrub species ranged from 1 ± 3 to 690 ± 1728 seeds/m2. Canopy cover of the "obligate" seed bank species, such as Ceanothus sanguineus and Prunus emarginata, was low or nonexistent in uncut fores

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Petrulaitis, Lukas, Valerijus Rašomavičius, Domas Uogintas, and Zigmantas Gudžinskas. "Soil Seed Bank of Alien and Native Cornus (Cornaceae) Taxa in Lithuania: What Determines Seed Density and Vertical Distribution in Soil?" Diversity 14, no. 6 (2022): 488. http://dx.doi.org/10.3390/d14060488.

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Soil seed banks of alien plant species are sources of propagules that play a crucial role in plant population dynamics. Studies on seed banks of woody alien species are crucial for understanding mechanisms of their encroachment on natural habitats. This study aimed to compare vertical distribution, density and composition of seed banks formed by native Cornus sanguinea subsp. sanguinea and alien C. alba, C. sericea and C. sanguinea subsp. australis in the Southern Hemiboreal zone of Europe. Five sites for each of four taxa were selected for the study, and seeds were sampled using the soil core

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Traba, Juan, Francisco M. Azcárate, and Begoña Peco. "From what depth do seeds emerge? A soil seed bank experiment with Mediterranean grassland species." Seed Science Research 14, no. 3 (2004): 297–303. http://dx.doi.org/10.1079/ssr2004179.

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Seed germination and emergence are influenced by the position of seeds in the soil bank profile. Mediterranean grasslands are heavily dependent on seed banks, as these systems are mainly composed of annual species. Seed bank germination experiments in a greenhouse were conducted to analyse the role played by burial depth on seed bank dynamics in annual Mediterranean grasslands. Specifically, they addressed two objectives: (1) to assess the ability of seeds in the shallow layer of the soil bank to emerge when they are buried at different depths, and (2) to ascertain the ability of seeds from de

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Bhatt, Arvind, Xingxing Chen, David J. Gallacher, et al. "Storage on Maternal Plants Affects Temperature Requirements during Germination in Rumex obtusifolius." Plants 12, no. 13 (2023): 2403. http://dx.doi.org/10.3390/plants12132403.

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Aerial seed banks facilitate population persistence by extending the temporal range of seed dispersal. Knowing the temporal range of germination will improve our understanding of the relationship between seed germination dynamics and aerial seed bank storage duration. We tested the effects of temperature (12/12 h of 5/10, 10/20, 20/30 and 25/35 °C) and light variation (12 h light/12 h darkness and 24 h darkness per day) on germination of Rumex obtusifolius L. seeds retained in an aerial seed bank for 0, 2, 4, 6, 8 and 10 months. Freshly harvested R. obtusifolius were non-dormant and exhibited

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Hernandez, Rebecca R., Karen E. Tanner, Sophia Haji, Ingrid M. Parker, Bruce M. Pavlik, and Kara A. Moore-O’Leary. "Simulated Photovoltaic Solar Panels Alter the Seed Bank Survival of Two Desert Annual Plant Species." Plants 9, no. 9 (2020): 1125. http://dx.doi.org/10.3390/plants9091125.

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Seed bank survival underpins plant population persistence but studies on seed bank trait-environment interactions are few. Changes in environmental conditions relevant to seed banks occur in desert ecosystems owing to solar energy development. We developed a conceptual model of seed bank survival to complement methodologies using in-situ seed bank packets. Using this framework, we quantified the seed bank survival of two closely related annual desert plant species, one rare (Eriophyllum mohavense) and one common (Eriophyllum wallacei), and the seed bank–environment interactions of these two sp

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Chaudhary, Tulasa, Manisha Nagarkoti, Sudhir Neupane, Dipak Lamichhane, Jeevan Pandey, and Gaurav Parmar. "Wild Seed Conservation in National Botanical Garden, Lalitpur, Nepal." Journal of Plant Resources 20, no. 2 (2022): 96–113. http://dx.doi.org/10.3126/bdpr.v20i2.56992.

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Seed banks are the important means for the ex-situ conservation of plant genetic diversity. Though the seeds of domesticated varieties have been preserved for a long time, wild seed conservation is a noble concept in Nepal. Seed Bank of National Botanical Garden, Godawari, Lalitpur (NBG) is a major initiative for the conservation of wild plant seeds in Nepal. In the present study, a standardized seed banking procedures practiced at the Seed Bank of NBG, from seed collection to storage including germination test has been included. Currently, seeds of 84 wild species belonging to 77 genera of 47

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Butler, Jack, and Kara Paintner. "Rangeland Recovery Potential: Soil Seed Content and Seed Viability." UW National Parks Service Research Station Annual Reports 14 (January 1, 1990): 63–65. http://dx.doi.org/10.13001/uwnpsrc.1990.2879.

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In most plant communities, soil contains a seed bank (population of dormant seeds), (Harper 1977), which provides a partial record of past and present vegetation (Major and Pyott 1966, Johnson and Anderson 1986). Seed banks are continuously rejuvenated by a "seed rain", from vegetation located on- and off-site. If existing communities are disturbed or destroyed, the seed bank provides a potential source of propagules during succession (Egler 1954, Connell and Slatyer 1977). Consequently, seed banks may serve as an index in predicting what vegetation changes might occur if environmental conditi

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Álvarez-Espino, Ricardo, Héctor Godínez-Álvarez, and Rodolfo De la Torre-Almaráz. "Seed banking in the columnar cactusStenocereus stellatus: distribution, density and longevity of seeds." Seed Science Research 24, no. 4 (2014): 315–20. http://dx.doi.org/10.1017/s0960258514000324.

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AbstractThe soil seed bank is the reserve of viable seeds found in the soil. This reserve contributes to plant population persistence in unpredictable environments; thus, determining its presence is basic to understanding recruitment patterns and population dynamics. Studies of soil seed banks in the Cactaceae are scarce, although these plants are ecologically dominant in American arid and semi-arid environments. Most studies have inferred the presence of seed banks by analysing morphological seed traits or germination of seeds stored in the laboratory for different periods of time. Few studie

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Rose, R. J. "The effects of hybridization on the small-scale variation in seed-bank composition of a rare plant species, Erica ciliaris L." Seed Science Research 17, no. 3 (2007): 201–10. http://dx.doi.org/10.1017/s0960258507782855.

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AbstractThe size and composition of the seed bank of a rare species (Erica ciliaris L.) was analysed. E. ciliaris hybridizes with a common relative in southern England (Erica tetralix). The seed banks of these co-occurring species were measured at a number of sites with a range of vegetation types and different management histories. Additional sets of samples were taken from forestry plantations on former heathland sites, where these species were known to occur. Relatively few hybrid seedlings were found in any of the seed-bank samples, even though their vegetative abundance within the samplin

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Sanderson, Matt A., Robert Stout, Sarah Goslee, Jeff Gonet, and Richard G. Smith. "Soil seed bank community structure of pastures and hayfields on an organic farm." Canadian Journal of Plant Science 94, no. 4 (2014): 621–31. http://dx.doi.org/10.4141/cjps2013-288.

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Sanderson, M. A., Stout, R., Goslee, S., Gonet, J. and Smith, R. G. 2014. Soil seed bank community structure of pastures and hayfields on an organic farm. Can. J. Plant Sci. 94: 621–631. Understanding the composition of seed banks in pasture soils would help farmers anticipate and manage for weed problems. We characterized the soil seed bank in eight pastures and hayfields [two alfalfa (Medicago sativa L.) and two predominantly grass hayfields; two recently established and two permanent pastures] within an organic dairy farm in southeastern New Hampshire. Seed banks were sampled in the upper 5

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Simard, Marie-Josée, Sébastien Rouane, and Gilles D. Leroux. "Herbicide Rate, Glyphosate/Glufosinate Sequence and Corn/Soybean Rotation Effects on Weed Seed Banks." Weed Science 59, no. 3 (2011): 398–403. http://dx.doi.org/10.1614/ws-d-10-00162.1.

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The effect of herbicide rates on weed control and crop yield is the subject of countless and ongoing research projects. Weed seed banks receive very little attention in comparison. The seed bank resulting from 3 yr (2006 to 2008) of single herbicide rates in a cropping system where glyphosate/glufosinate and corn/soybean were rotated or not was evaluated in a field located in St-Augustin-de-Desmaures, Québec, Canada. Field plots under conventional tillage were seeded in corn every year, or corn and soybean (1 yr). These plots received the same herbicide every year or various glyphosate/glufosi

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Qi, Meiqin, and John B. Scarratt. "Effect of harvesting method on seed bank dynamics in a boreal mixedwood forest in northwestern Ontario." Canadian Journal of Botany 76, no. 5 (1998): 872–83. http://dx.doi.org/10.1139/b98-061.

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The effects of harvesting on seed bank dynamics in a boreal mixedwood forest were studied on replicated 10-ha treatment blocks harvested by different clear-cutting or partial-cutting systems in the fall of 1993. From 1994 to 1995 we monitored seed rain, soil seed banks, and seasonal changes in species composition in understory vegetation and seed banks in all harvest blocks plus three uncut controls. No persistent conifers were found in the soil seed banks of any treatment. The number of seeds of other species generally decreased with soil depth in all treatments, with the lower layer of organ

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Jankowska-Błaszczuk, Małgorzata. "Zróżnicowanie banków nasion w naturalnie i antropogenicznie przekształconych zbiorowiskach leśnych [Diversity of soil seed banks in natural and man-modified forest communities]." Monographiae Botanicae 88 (2014): 1–147. http://dx.doi.org/10.5586/mb.2000.002.

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The objective of the study was to reveal diversity in species composition and size of soil seed banks derived from forest communities undergoing different intensity of human impact as well as to show the seed bank strategy as an adaptation of species to many kinds of disturbances occurring in natural deciduous forests. On the basis of the study of soil seed bank in natural, stabilised deciduous forest communities in Białowieża National Park and taking into account data from literature it was found that: (1) Densities of seed banks of fertile, undisturbed deciduous forest vary from three to eig

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Akinola, M. Olatunde, Ken Thompson, and Susan H. Hillier. "Development of soil seed banks beneath synthesized meadow communities after seven years of climate manipulations." Seed Science Research 8, no. 4 (1998): 493–500. http://dx.doi.org/10.1017/s0960258500004463.

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AbstractMeadow microcosms were established from seed on low-fertility soil of known seed bank composition, and subjected to manipulations of simulated grazing, cutting date, temperature and fertility for seven years. The composition and density of the seed bank was then determined in five 2-cm soil layers (0–2, 2–4, 4–6, 6–8 and 8–10 cm). The seed bank contained three distinct groups of species: species present in the original soil, sown species, and ‘others’. The seed bank was little affected by the experimental treatments, presumably because the sown species made only a small contribution to

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Baughman, Owen W., and Susan E. Meyer. "Is Pyrenophora semeniperda the Cause of Downy Brome (Bromus tectorum) Die-offs?" Invasive Plant Science and Management 6, no. 1 (2013): 105–11. http://dx.doi.org/10.1614/ipsm-d-12-00043.1.

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AbstractDowny brome (cheatgrass) is a highly successful, exotic, winter annual invader in semi-arid western North America, forming near-monocultures across many landscapes. A frequent but poorly understood phenomenon in these heavily invaded areas is periodic ‘die-off’ or complete stand failure. The fungal pathogen Pyrenophora semeniperda is abundant in cheatgrass seed banks and causes high mortality. To determine whether this pathogen could be responsible for stand failure, we quantified late spring seed banks in die-off areas and adjacent cheatgrass stands at nine sites. Seed bank analysis s

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Villiers, A. J. De, M. W. Van Rooyen, and G. K. Theron. "Seed bank classification of the Strandveld Succulent Karoo, South Africa." Seed Science Research 12, no. 1 (2002): 57–67. http://dx.doi.org/10.1079/ssr200198.

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Laboratory characteristics of seeds of 37 species (41 seed types) from the Strandveld Succulent Karoo were used to predict seed bank types according to a modified key of ). Five seed bank strategies were recognized for this vegetation type, i.e. two with transient and three with persistent seed bank strategies. Of the 37 species investigated, 32% (all perennial species) had transient seed bank strategies, while 68% had persistent seed bank strategies. Seed dispersal of these 37 species was mainly anemochorous, although antitelechoric elements such as myxospermy, hygrochasy, heterodiaspory and

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Andrews, TS, RDB Whalley, and CE Jones. "Seed production and seedling emergence of Giant Parramatta grass on the north coast of New South Wales." Australian Journal of Experimental Agriculture 36, no. 3 (1996): 299. http://dx.doi.org/10.1071/ea9960299.

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Inputs and losses from Giant Parramatta grass [GPG, Sporobolus indicus (L.) R. Br. var. major (Buse) Baaijens] soil seed banks were quantified on the North Coast of New South Wales. Monthly potential seed production and actual seed fall was estimated at Valla during 1991-92. Total potential production was >668 000 seeds/m2 for the season, while seed fall was >146000 seeds/m2. Seed fall >10000 seeds/m2.month was recorded from January until May, with further seed falls recorded in June and July. The impact of seed production on seed banks was assessed by estimating seed banks in the see

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Plue, J., J. L. Dupouey, K. Verheyen, and M. Hermy. "Forest seed banks along an intensity gradient of ancient agriculture." Seed Science Research 19, no. 2 (2009): 103–14. http://dx.doi.org/10.1017/s0960258509306662.

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AbstractRecently, forest seed banks were proven to not only reflect former (decades-old) but also ancient (centuries-old) land use. Yet, as land-use intensity determines the magnitude of seed-bank changes in recent forests, this study aims to identify whether an ancient land-use gradient would also be reflected in the seed bank. On a forested 1600-year-old archaeological site, five different land-use intensities were mapped and sampled. Apart from seed density, species richness and composition, functional seed-bank types, defined by nine seed-bank-related plant traits, were related to the land

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Yehnjong, Petra S., Michael S. Zavada, and Chris Liu. "Characterization and ecological significance of a seed bank from the Upper Pennsylvanian Wise Formation, southwest Virginia." Acta Palaeobotanica 57, no. 2 (2017): 165–75. http://dx.doi.org/10.1515/acpa-2017-0017.

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AbstractSoil seed banks are important to the maintenance and restoration of floras. Extant seed banks exhibit unique characteristics with regard to the distribution of seed size and seed density. Seeds were recovered from the Upper Pennsylvanian Wise Formation in southwest Virginia. Structurally preserved seeds were also examined from coal balls of the Pennsylvanian Pottsville and Allegheny Groups, Ohio. The size distribution of the seeds from the Wise Formation is similar to that of structurally preserved seeds of the Upper Pennsylvanian Pottsville and Allegheny Group coal balls. In contrast,

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Lailaty, Intani Quarta, Yulita Ratna Mufida, Vandra Kurniawan, and Muhammad Efendi. "Pengelolaan dan Pengayaan Koleksi Biji Begonia di Bank Biji Kebun Raya Cibodas Jawa Barat." Al-Kauniyah: Jurnal Biologi 16, no. 2 (2023): 287–300. http://dx.doi.org/10.15408/kauniyah.v16i2.24265.

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AbstrakBank biji merupakan salah satu solusi yang baik dalam pemeliharaan plasma nutfah secara ex-situ, karena dianggap lebih efektif dan efisien dalam penyimpanan. Bank biji di Kebun Raya Cibodas (KRC) telah mengoleksi 147 jenis biji dari 102 marga dan 61 suku. Penyimpanan biji ukuran kecil masih menjadi suatu tantangan dan peluang tersendiri untuk diteliti dan dikembangkan. Dalam tulisan ini akan dibahas mengenai pengelolaan dan pengayaan koleksi biji ukuran kecil, seperti Begonia, di bank biji KRC. Prosedur pengelolaan biji di bank biji KRC meliputi pemanenan, pemrosesan, pengujian, dan pen

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Lu, Juan J., Dun Y. Tan, Jerry M. Baskin, and Carol C. Baskin. "Two kinds of persistent soil seed banks in an amphi-basicarpic cold-desert annual." Seed Science Research 24, no. 4 (2014): 293–300. http://dx.doi.org/10.1017/s0960258514000270.

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AbstractSeveral studies have compared seed banks of the different morphs of heteromorphic species, but none of them was on an amphi-basicarpic species. Our primary aim was to compare the relative ability of aerial and basal diaspores of an amphi-basicarpic species to form a seed bank. We compared the seed-bank dynamics of basal and aerial diaspores of three populations of the cold-desert annualCeratocarpus arenariusgrowing in the Junggar Desert in north-western China. A 2.5-year experimental garden study compared germination phenology and retention of viability in basal (a) and aerial (c and f

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Ong, Glendon Hong Ming, Samantha Lai, Siti Maryam Yaakub, and Peter Todd. "Depauperate seed banks in urban tropical seagrass meadows." Marine and Freshwater Research 71, no. 8 (2020): 935. http://dx.doi.org/10.1071/mf19204.

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Seagrasses need to be resilient if they are to persist in the long term. Being able to build up a dormant seed bank in sediments is a key strategy that some species employ to regenerate from large-scale degradation. Much of the research on seed banks has focussed on temperate species, and little is known regarding the status of seed banks in tropical meadows. In the present study, we examined the seed bank status of three common seagrass species at six sites in Singapore and attempted to identify potential drivers of seed abundance. Our results indicated depauperate seed banks with few species

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Abella, Scott R., and Judith D. Springer. "Soil seed banks in a mature coniferous forest landscape: dominance of native perennials and low spatial variability." Seed Science Research 22, no. 3 (2012): 207–17. http://dx.doi.org/10.1017/s0960258512000074.

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AbstractSoil seed banks are important to vegetation recruitment, ecosystem functioning and land management. We evaluated composition of 0–5 cm soil seed banks and relationships of seed banks with forest community types (ranging from low-elevation pinyon–juniper to high-elevation bristlecone pine), vegetation cover and environmental variables within a 40,000-ha relatively undisturbed coniferous forest landscape in Nevada, USA. We collected samples from 36 sites and used the emergence method to assay seed banks. Seed density averaged 479 seeds m− 2across sites and a total of 39 taxa were detecte

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Walck, Jeffrey L., Jerry M. Baskin, Carol C. Baskin, and Siti N. Hidayati. "Defining transient and persistent seed banks in species with pronounced seasonal dormancy and germination patterns." Seed Science Research 15, no. 3 (2005): 189–96. http://dx.doi.org/10.1079/ssr2005209.

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The most often used time-line for distinguishing a transient seed bank from a persistent seed bank is one calendar year. Thus, species whose seeds live in or on the soil for <1 year have a transient seed bank, whereas those whose seeds live for ≥1 year have a persistent seed bank. However, dormancy cycling of seeds buried in soil has not been given due consideration in these models. When dormancy cycling is considered, it is shown that seeds of both autumn-germinators and spring-germinators are in the dormant state when they are 1 year old. Thus, unless the seeds live until at least the sec

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Goodson, J. M., A. M. Gurnell, P. G. Angold, and I. P. Morrissey. "Riparian seed banks: structure, process and implications for riparian management." Progress in Physical Geography: Earth and Environment 25, no. 3 (2001): 301–25. http://dx.doi.org/10.1177/030913330102500301.

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After a brief description of the evolution of seed bank research, this review highlights the importance of the seed bank in understanding the character and dynamics of river margins. Through a discussion of published research on wetlands in general, the lack of research focused on riparian systems is highlighted. This is followed by an evaluation of current knowledge concerning the nature and dynamics of riparian seed banks and the factors that control the erosion, transport and deposition of riparian seeds. The paper concludes by (i) indicating the complexity of the interactions that control

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Campos, João Batista, and Maria Conceição de Souza. "Potencial for natural forest regeneration from seed bank in an upper Paraná river floodplain, Brazil." Brazilian Archives of Biology and Technology 46, no. 4 (2003): 625–39. http://dx.doi.org/10.1590/s1516-89132003000400018.

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The historical process of deforestation was analyzed to evaluate the regeneration potential of forests from soil seed bank of Porto Rico island (53° 15'W and 22° 45'S) in the upper Paraná river floodplain. Remnant forest fragments were identified and measured and the structure of arboreous vegetation and the composition of the seed bank of the forests and grassland of the island were evaluated. Results showed a fast process of deforestation with critical levels of forest: the remaining twice fragments represented only 5.98% of the total surface of the island. Disturbance by cattle raised on th

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Jakobsson, Anna, Ove Eriksson, and Hans Henrik Bruun. "Local seed rain and seed bank in a species-rich grassland: effects of plant abundance and seed size." Canadian Journal of Botany 84, no. 12 (2006): 1870–81. http://dx.doi.org/10.1139/b06-136.

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In this study, we examined the relationship between seed size, seed rain, and seed bank in a species-rich perennial grassland in Sweden. The seed rain was monitored by 100 seed traps placed in a 10 m × 10 m area for 1 year. The seed bank was sampled by taking 100 soil samples, each in close vicinity to a seed trap. Abundance of reproductive ramets in the area was estimated, since this is likely to affect the proportion of hit seed traps and seed bank samples. When abundance of reproductive ramets was accounted for, we found a negative relationship between seed size and proportion of hit seed b

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Abella, Scott R., Judith D. Springer, and W. Wallace Covington. "Seed banks of an Arizona Pinus ponderosa landscape: responses to environmental gradients and fire cues." Canadian Journal of Forest Research 37, no. 3 (2007): 552–67. http://dx.doi.org/10.1139/x06-255.

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We measured soil seed banks in 102 plots within a 110 000 ha Arizona Pinus ponderosa landscape, determined seed-bank responses to fire cues and tree canopy types (open or densely treed patches), compared seed-bank composition among ecosystem types, and assessed the utility of seed banks for ecological restoration. Liquid smoke was associated with increased community-level emergence from seed banks in greenhouse experiments, whereas heating to 100 °C had minimal effect and charred P. ponderosa wood decreased emergence. We detected 103 species in seed-bank samples and 280 species in aboveground

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Bertiller, Mónica B. "Spatial patterns of the germinable soil seed bank in northern Patagonia." Seed Science Research 8, no. 1 (1998): 39–46. http://dx.doi.org/10.1017/s0960258500003895.

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AbstractThe spatial variation of the soil seed bank in the steppe of Larrea divaricata and Stipa spp. was evaluated in relation to the spatial pattern of the established vegetation, over two years. Plant distribution was expected to affect the spatial pattern of the soil seed bank. It was hypothesized that patches of bare soil are seed-limited, while soil beneath the external crown of vegetation patches contains greater numbers of seeds. The soil seed bank of the steppe of Larrea divaricata and Stipa spp. displayed a patchy distribution associated with the spatial pattern of above-ground veget

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Poiani, Karen A., and W. Carter Johnson. "Effect of hydroperiod on seed-bank composition in semipermanent prairie wetlands." Canadian Journal of Botany 67, no. 3 (1989): 856–64. http://dx.doi.org/10.1139/b89-115.

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Bottom samples were collected from two semipermanent prairie wetlands to determine if known hydroperiod differences were reflected in seed-bank composition. Samples were also taken a 2nd year in one wetland to assess between-year variation. Seed density and composition were determined by counting and identifying seedlings that emerged from samples placed in a greenhouse. Most seed-bank characteristics were statistically indistinguishable between wetlands, including floristic composition and total seed density. A significant difference occurred, however, in the relative importance of mudflat an

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Schutte, Brian J., Adam S. Davis, Stephen A. Peinado, and Jamshid Ashigh. "Seed-coat thickness data clarify seed size–seed-bank persistence trade-offs inAbutilon theophrasti(Malvaceae)." Seed Science Research 24, no. 2 (2014): 119–31. http://dx.doi.org/10.1017/s0960258514000099.

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AbstractTheoretical models predict that seed size and seed-bank persistence evolve interdependently, such that strong selection for one trait corresponds with weak selection for the other. This framework has been supported and rejected by empirical data, and thus, conclusive evidence is lacking. We expanded the seed size–persistence framework to include seed-coat thickness, a defence trait previously correlated with seed survival in soil. To do this, we usedAbutilon theophrastiaccessions with varied evolutionary histories and we quantified associations among seed traits including morphology, s

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