TAILIEUCHUNG - Germination response of five eastern Mediterranean woody species to smoke solutions derived from various plants
The role of smoke as afire-related germination cue is well known in many parts of the world, including Mediterranean-type ecosystems; however, it has been neglected in the Mediterranean Basin (MB). We studied the germination response of 5 woody species found in the eastern MB (south-western Turkey) to smoke solutions derived from different plant species. | Research Article Turk J Bot 36 (2012) 480-487 © TÜBİTAK doi: Germination response of five eastern Mediterranean woody species to smoke solutions derived from various plants Şükrü Serter ÇATAV, İsmail BEKAR, Büşra Seda ATEŞ, Gökhan ERGAN, Funda OYMAK, Elif Deniz ÜLKER, Çağatay TAVŞANOĞLU* Department of Biology, Hacettepe University, 06800 Beytepe, Ankara - TURKEY Received: ● Accepted: Abstract: The role of smoke as a fire-related germination cue is well known in many parts of the world, including Mediterranean-type ecosystems; however, it has been neglected in the Mediterranean Basin (MB). We studied the germination response of 5 woody species found in the eastern MB (south-western Turkey) to smoke solutions derived from different plant species. Of the 5 species examined, 2 [Sarcopoterium spinosum (L.) Spach and Satureja thymbra L.] showed significant increments in germination percentage after smoke treatments compared to the control, while the remaining 3 [Calicotome villosa (Poir.) Link, Cistus salviifolius L., and Lavandula stoechas L.] did not. However, none of the species showed any change in the germination rate. In addition, smoke solutions derived from various plants did not affect the germination response (germination percentage and rate) in all species. The results confirm that the effect of smoke originating from different plant species on germination response is globally similar regardless of the region. Our study helps to fill the gap in the literature on smoke-induced germination in the eastern MB and supports the idea that smoke is important to postfire germination in the MB. Key words: Aqueous smoke extracts, fire, seed germination, Mediterranean Basin, Turkey Introduction Fire plays a key role in shaping the composition and distribution of plant communities (Trabaud, 1994; Bond & Keeley, 2005; Verdú & Pausas, 2007) and is an important evolutionary pressure on plant traits (Keeley et al., 2011). In .
đang nạp các trang xem trước
