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Seed germination of seven desert plants and implications for vegetation restoration

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ABSTRACT

In this paper, we evaluated the seed germination responses of seven desert species to temperature and light and explored the implications for vegetation restoration. Both temperature and photon irradiance influenced seed germination of these species. Based on these results and the environmental conditions of their natural habitat, suggestions about plant choices for different habitats including shifting sand dunes, semi-fixed sand dunes and fixed sand dunes are given. Based on the precipitation and temperature conditions, early May is suitable for seed sowing in the study area.

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Final germination percentages (A–C) and rates (D–F) (mean ± SE, n = 5) of seeds of three desert shrub species under different light intensities. Different uppercase letters indicate significant differences.
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plw031-F1: Final germination percentages (A–C) and rates (D–F) (mean ± SE, n = 5) of seeds of three desert shrub species under different light intensities. Different uppercase letters indicate significant differences.

Mentions: The effects of species, photon irradiance and their interactions were significant for FGP (Table 2). In general, seeds showed the highest FGPs under dark conditions, and the FGP decreased as the light intensity increased (Fig. 1). For all seven species, seed germination was strongly inhibited under the highest photon irradiance (1000 µmol m−2 s−1). For all of the tested species except C. microphylla and Melilotussuaveolens, the FGPs under 0, 15 and 62.5 µmol m−2 s−1 photon irradiances were not significantly different. The seed germination of C. microphylla and Melilotussuaveolens was sensitive to light, and differed significantly among the 0, 15 and 62.5 µmol m−2 s−1 photon irradiance treatments.Figure 1.


Seed germination of seven desert plants and implications for vegetation restoration
Final germination percentages (A–C) and rates (D–F) (mean ± SE, n = 5) of seeds of three desert shrub species under different light intensities. Different uppercase letters indicate significant differences.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4940479&req=5

plw031-F1: Final germination percentages (A–C) and rates (D–F) (mean ± SE, n = 5) of seeds of three desert shrub species under different light intensities. Different uppercase letters indicate significant differences.
Mentions: The effects of species, photon irradiance and their interactions were significant for FGP (Table 2). In general, seeds showed the highest FGPs under dark conditions, and the FGP decreased as the light intensity increased (Fig. 1). For all seven species, seed germination was strongly inhibited under the highest photon irradiance (1000 µmol m−2 s−1). For all of the tested species except C. microphylla and Melilotussuaveolens, the FGPs under 0, 15 and 62.5 µmol m−2 s−1 photon irradiances were not significantly different. The seed germination of C. microphylla and Melilotussuaveolens was sensitive to light, and differed significantly among the 0, 15 and 62.5 µmol m−2 s−1 photon irradiance treatments.Figure 1.

View Article: PubMed Central - PubMed

ABSTRACT

In this paper, we evaluated the seed germination responses of seven desert species to temperature and light and explored the implications for vegetation restoration. Both temperature and photon irradiance influenced seed germination of these species. Based on these results and the environmental conditions of their natural habitat, suggestions about plant choices for different habitats including shifting sand dunes, semi-fixed sand dunes and fixed sand dunes are given. Based on the precipitation and temperature conditions, early May is suitable for seed sowing in the study area.

No MeSH data available.