Desiccation tolerance and sensitivity of selected tropical montane species in Sri Lanka

Autor:	Carol C. Baskin, A.M.T.A. Gunaratne, K. M. G. Gehan Jayasuriya, Yasoja S. Athugala
Rok vydání:	2021
Předmět:	0106 biological sciences 0301 basic medicine Canopy Climate change Plant Science Biology 01 natural sciences Desiccation tolerance 03 medical and health sciences 030104 developmental biology Agronomy Germination Threatened species Dormancy Sri lanka Desiccation 010606 plant biology & botany
Zdroj:	Seed Science Research. 31:98-104
ISSN:	1475-2735 0960-2585
Popis:	Although the level of seed desiccation sensitivity (LSDS) may have an impact on plant species conservation, information is available for 80%. Although seeds of the other species had >80% viability, only 0–70% germinated due to dormancy. Seeds of five species had MC Ardisia missionis, Psychotria gartneri and Psychotria nigra remained viable after desiccation, showing DT. Seeds of 17 species were DS and those of 11 species DT. The TSW of four species was >500 g. Thus, seeds of other species were predicted to be DT by the TSW–MC criterion. A relationship was identified between LSDS and the forest strata of the species. More canopy species produced DS than DT seeds. Since seeds of most of the studied species were DS, these species may be threatened due to prolonged droughts predicted for the region due to climate change.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f2c6193c472d8523cca47045b3e9509b https://doi.org/10.1017/s0960258521000088 Zobrazit plný text záznamu