DETERMINATION OF GERMINATION AND EMERGENCE CHARACTERISTICS IN DIFFERENT GROWING MEDIA OF CAĞ (Bilacunaria microcarpa) PLANT GROWING IN VAN LAKE BASIN

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Tuyer V. M., Şensoy S.

17th CHINA TO ADRIATIC TURKISH WORLD INTERNATIONAL SCIENTIFIC RESEARCH CONGRESS, Van, Türkiye, 5 - 07 Aralık 2025, ss.87-106, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Van
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.87-106
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

This study aimed to investigate the cultivation potential of Cağ [Bilacunaria microcarpa (syn.

Hippomarathrum microcarpum (M.Bieb) B.Fedtsch.)], a plant native to the Van Lake Basin, by

examining its seed germination and emergence characteristics under different growing media. The

study also aimed to contribute to the conservation of genetic diversity and increase agricultural

diversity. The germination potential of Cağ seeds was assessed, and a seedling emergence trial was

conducted. The media used in the trial included soil (control), peat, perlite, sand, farmyard manure,

and their combinations to determine their effects on seedling emergence. Due to insufficient

germination in the initial germination trial, the seeds were subjected to stratification. The seedling

emergence trial included the following growing media: 1: 100% soil (control); 2: 50% soil + 50%

peat; 3: 50% soil + 50% perlite; 4: 50% soil + 50% sand; 5: 50% soil + 50% farmyard manure; and

6: 20% soil + 20% peat + 20% perlite + 20% sand + 20% farmyard manure. The study was carried

out in a randomized plot design with six treatments, four replicates, and seeds collected from two

different regions. Parameters such as seedling emergence time, emergence rate, shoot length, fresh

and dry shoot weight, root length, fresh and dry root weight, and leaf number were evaluated using

Duncan’s multiple comparison test. Results indicated that in Bitlis conditions, seed stratification for

extended periods under appropriate temperature and medium conditions significantly improved

emergence rates. The Van genotype (Genotype 2) performed better than the Bitlis genotype (Genotype

1), and the 50% Soil + 50% Peat mixture showed superior performance for several parameters. It was

concluded that addressing the need for cold stratification in Cağ seeds could enhance germination

success and that appropriate growing media would promote faster seedling development.