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Ankara University (2012)

Salsola grandis Freitag, Vural & N. Adıgüzel’ in otekolojisi

ÇINAR, İnci Bahar

Titre : Salsola grandis Freitag, Vural & N. Adıgüzel’ in otekolojisi

Autecology of salsola grandis Freitag, Vural & N. Adıgüzel

Auteur : ÇINAR, İnci Bahar

Université de soutenance : Ankara University

Grade : Master 2012

Résumé
In this study it was aimed to determine the ecological characteristics of the halophytic endemic plant species Salsola grandis Freitag, Vural & Adıgüzel (Chenopodiaceae) which has a narrow distribution area at Ankara-Nallıhan-Davutoğlan Kuş Cenneti and according to IUCN criteria belongs to CR category. S. grandis prefers saline-alkaline soils with clay texture. Its distribution area is under the influence of semi-arid cold Mediterranean climate. The mean values of the vegetative organs according to the morphometrical measurements during the field studies between May 2010 and November 2011 are as follows ; plant height 41,1 ±13.5 cm, leaf width 0,4±1,04 mm, leaf length 5,3±1,8 mm, bract length 2,3±1,04 mm. The mean values of the generative organs are ; longer theca length 1,73±0,06 mm, shorter theca length 1,70±0,07 mm, stigma length 1,19±0,25 mm, style length 1,14±0,25 mm, ovary length 0,70±0,18 mm, ovary width 0,80±0,09 mm and pistil length 3,02±0,21. Mean fruit radius and weight are as follows respectively ; 12,39±3,60 mm and 0,014±0,0009 g. The average number of seeds that an individual produces is 718. The distribution area is about 48,5 x 10-4 km2 with approximately 436612,23 individuals. The death ratio was calculated as 55% which is very high and maybe the main reason of the narrow distribution with its specific soil needs

Mots clés : Salsola grandis, Otekoloji, Nallıhan, Halofit, Chenopodiaceae ,Salsola grandis, Autecology, Nallıhan, Halophyte, Chenopodiaceae

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Page publiée le 4 février 2016, mise à jour le 27 août 2018