Seed bank dynamics in a Great Basin salt playa

Gul, Bilquees; Weber, D. J.

doi:10.1006/jare.2001.0826

Cited by 26 publications

(12 citation statements)

References 26 publications

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“…This delay may occur when the salinity causes stress to seeds, for example reduction of germination and dormancy related to the decrease of osmotic potential (Pujol et al 2000), but do not inhibit germination when the stress conditions are alleviated, i.e. by an increase in the water potential and a decline in salinity (Ungar 1991;Gul and Weber 2001;Tobe et al 2001;Rubio-Casal et al 2003). The higher plant density in Verdemilho may also explained by the lower soil salinity than at Varela (Table 1).…”

Section: Discussionmentioning

confidence: 92%

Salicornia ramosissima population dynamics and tolerance of salinity

Silva

Caldeira

Freitas

2006

Ecological Research

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Field and greenhouse studies have been conducted to clarify aspects of population dynamics and NaCl tolerance of Salicornia ramosissima J. Woods. Two populations, Varela and Verdemilho, were monitored in the field during two consecutive life cycles and aspects of their morphology and density were recorded monthly. In the laboratory seedlings were exposed to different salinity for 10 weeks and growth and mortality rate were recorded weekly. The growth of the populations differed significantly, possibly because of the different salinities of the two sampling sites and/or genetic adaptations of the two populations to the environmental conditions. The absence of a significant correlation between sediment salinity and stem elongation suggested, however, that salinity, alone was not responsible for the differences observed and was possibly associated with other factors, because of nutritional, edaphic, and microclimatic conditions. S. ramosissima did not develop well in conditions of elevated or moderate salinity; its growth was optimum at low salinity. Optimum development of S. ramosissima may, nevertheless, depend on the total number of large seeds in a population seed bank, because of their greater success in germination and germinability under stress conditions than small seeds.

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Section: Discussionmentioning

confidence: 92%

Salicornia ramosissima population dynamics and tolerance of salinity

Silva

Caldeira

Freitas

2006

Ecological Research

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“…These results are not in agreement with other authors'. Gul & Weber (2001) studied seed banks of various halophytes species and found a high number of seeds. On the other hand, A. macrostachyum is a perennial plant, very well adapted to extreme salinity areas as salt pans (Chapman, 1974).…”

Section: Discussionmentioning

confidence: 99%

Influence of salinity on germination and seeds viability of two primary colonizers of Mediterranean salt pans

Rubio-Casal

Castillo

Luque

et al. 2003

Journal of Arid Environments

105

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“…The interaction among these factors forms the special spatial and temporal patterns of soil-persistent seed banks. Owing to the growing awareness of the ecological and evolutionary importance of seed banks, many field studies have documented the distribution patterns of soil seed banks and some, in particular, have documented the importance of persistent seed banks in the restoration of plant populations and communities, with specific reference to desert plants (Reichman, 1984;Guo et al, 1999;Gul and Weber, 2001;Li et al, 2002;Yu et al, 2003). The patterns of persistent seed banks of desert plants generally show extreme spatial and temporal heterogeneity, and seed germination and seedling establishment are haphazard for plants in the desert habitats.…”

Section: Introductionmentioning

confidence: 97%