Effects of combined pretreatments on germination and emergence of wild Eremurus spectabilis M. Bieb. seeds


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Akdağ Ş., Tuncer B.

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, cilt.48, ss.1017-1026, 2020 (SCI Expanded İndekslerine Giren Dergi)

  • Cilt numarası: 48 Konu: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.15835/nbha48211935
  • Dergi Adı: Notulae Botanicae Horti Agrobotanici Cluj-Napoca
  • Sayfa Sayıları: ss.1017-1026

Özet

Eremurus spectabilis is a perennial herbaceous species that grows in the wild. Commonly consumed as a

vegetable, it is also classified among medicinal plants and popular ornamental geophytes. Germination is not

achieved under normal conditions because of seed dormancy. In this study, various combined treatments were

experimented with to improve the germination and emergence performance of E. spectabilis seeds. The seeds

were immersed in solutions of potassium nitrate (KNO3: 5 mM for 24 and 48 hours), calcium chloride (CaCl2:

5 mM for 24 and 48 hours) and subjected to tip cutting. Pre-treated seeds were then subjected to moist-cold

stratification periods treatments for different durations (30, 50, 80 and 100 days). In the 5 mM KNO3

treatments, 48-hour KNO3 and 100 days of stratification treatments had better germination (11.1%) and

emergence values (9.7%). In the 5 mM CaCl2 treatments, 24-hour CaCl2 yielded better germination (10.2%)

and emergence (8.4%) values. Seed tip-cutting treatments were the most successful among all the treatments

for the germination and emergence parameters.

Keywords: CaCl2; KNO3; Liliaceae; moist-cold stratification; seed dormancy