Search Results

You are looking at 1 - 10 of 12 items for :

  • Biology and Life Sciences x
Clear All

Seed germination response of black nightshade to hormones, osmotic potential, salt stress, pH and burial depth was investigated in laboratory and green house. Adding the concentration of GA3 increased seed germination to 99% at the treatments of 25, 200 and 400 ppm. Seed germination decreased as concentration of cytokinin increased from 0.1–5 mM. Wet and dry prechilling duration increased seed germination of black nightshade. Germination of black nightshade seeds decreased as ethanol concentrations increased from 0.3 to 30%. A significant decline in germination was observed by increasing in NaCl concentration. Germination of black nightshade seed significantly decreased as the osmotic potential declined. Seed germination was observed over a broad range of pH. Seedling emergence was the greatest for seeds scattered on the soil surface and decreased by increasing in planting depth.

Restricted access

Fens are among the most threatened habitats in Europe as their area has decreased considerably in the last centuries. For successful management and restoration conservationists need detailed knowledge about seed bank formation and seed longevity of plants, as these features are closely related to successional and vegetation dynamical processes. I analysed seed longevity and the germination characteristics of six fen plant species by seed burial experiments. Based on seed weight, seed bank was expected for long-term persistent for the light-seeded Schoenus nigricans, Carex appropinquata, C. pseudocyperus, C. davalliana and Peucedanum palustre and also that for the medium-seeded Cicuta virosa. It was proved that, the latter two species have short-term persistent seed banks, while Carex pseudocyperus has a transient seed bank, therefore these species may only have a limited role in restoration from seed banks. It was found that Schoenus nigricans, Carex appropinquata and C. davalliana have persistent seed banks, because some of their four-year-old seeds have emerged. Fresh seeds had low germination rate in all studied species and majority of seeds emerged after winter, except for Carex pseudocyperus. After the germination peak in spring, the majority of the ungerminated seeds of Schoenus nigricans, Peucedanum palustre, Carex appropinquata, C. davalliana and Cicuta virosa entered a secondary dormancy phase that was broken in autumn. I found the seasonal emergence of the latter three species highly similar.

Restricted access

, A., Wall, S. and Westberg, M. (2014): Lichens from the Vadstena Monastery churchyard — the burial place of Erik Acharius. — Graphis Scripta 26 (1–2): 34–39. Westberg M. Lichens

Restricted access

Botto, J.F., R.A. Sanchez and JJ. Casal. 1998. Burial conditions affect light responses of Datura ferox seeds. Seed Sci. Res. 8:423-429. Burial conditions affect light responses o Datura ferox

Restricted access

-term seed burial. J. Plant Res. 117:245–248. Tsuyusaki S. Methods of estimating seed banks with reference to long-term seed burial J. Plant Res

Restricted access

2042 Kropac, Z., T. Havranek and J. Dobry. 1986. Effect of duration and depth of burial on seed survival of Avena fatua in arable soil. Folia Geobot. Phytotax. 21

Restricted access

Csontos, P. 1999. Six years' results of a seed burial experiment involving 30 species native to Hungary. Abstracts of the VIII European Six years' results of a seed burial experiment involving 30 species native to

Restricted access

their influence on infaunal assemblages . J. Exp. Mar. Biol. Ecol. 341 : 70 – 84 . Blackburn , N.J. and Orth , R.J . 2013 . Seed burial in eelgrass, Zostera marina: the role of

Restricted access
Acta Botanica Hungarica
Authors: R. Kiss, J. Sonkoly, P. Török, B. Tóthmérész, B. Deák, K. Tóth, K. Lukács, L. Godó, A. Kelemen, T. Miglécz, Sz. Radócz, E. Tóth, N. Balogh and O. Valkó

biodiversity conservation – plant introduction and practical restoration on ancient burial mounds . – Nature Conservation 24 : 65 – 80 . https://doi.org/10.3897/natureconservation.24.20019

Restricted access

Potentilla anserina , suffering from partial sand burial on Ordos plateau, China. Evol. Ecol. 15:303-318. Clonal integration enhances survival and performance of Potentilla anserina, suffering from partial sand burial on Ordos

Restricted access