Studies on the germination of an endemic species Centaurea tomentella Hand.-Mazz.

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Tarih

2006

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Pakistan Botanical Soc

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Centurea tomentella an endemic species of Turkey is facing a threat of extinction due to its overuse for the decorative purposes. The species is under an abiotic stress of salinity in its natural habitats. Studies on the germination of this species were thus started in order to evaluate the possibilities which would enable us to sustain and cultivate the native populations on a large scale. The germination behaviour of this species was investigated under two different light regimes (8 h light-16 h darkness and 16 h light- 8 h darkness) at a constant temperature of 25 degrees C. The results showed that germination was higher (59.50 %) in 16h light- 8 h darkness, but lower in 8 h light-16 h darkness (52.25 %). Different concentrations of NaCl and KNO3 were applied to assess if any improvement in germination could be obtained. Both the rate as well as total germination were higher at 0.25 % KNO3 under 8/16 h light/dark condition as compared to the control. The effect of 0.25 % KNO3 was significant, but light interactions were non significant.

Açıklama

Anahtar Kelimeler

Seed-Germination, Salt Tolerance, Salinity, Temperature, Light, Asteraceae, Dormancy, Growth, Nacl, L.

Kaynak

Pakistan Journal of Botany

WoS Q Değeri

Q4

Scopus Q Değeri

Q2

Cilt

38

Sayı

4

Künye