Effects of stratification, temperature and storage on germination in three provenances of Fraxinus angustifolia subsp. oxycarpa seeds
Küçük Resim Yok
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkiye Klinikleri Journal of Medical Sciences
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effects of stratification, temperature and storage on seed germination performance were investigated in 3 provenances of Fraxinus angustifolia subsp. oxycarpa seeds. In the first study, seeds were subjected to 9 different periods of cold stratification or warm stratification followed by cold stratification to overcome dormancy. Stratification and provenances affected seed germination percentage (GP) and germination value (GV) when seeds were germinated in darkness at 30/ 20 °C. Sixteen weeks' cold stratification (GP = 40.0, GV = 3.8), 4 weeks' warm stratification + 4 weeks' cold stratification (GP = 43.7. GV = 4.2) and 4 weeks' warm stratification + 8 weeks' cold stratification (GP = 45.8. GV = 4.3) were the most efficient in promoting germination performance, as well as dormancy removal. In the second study, the effects of storage at +4 °C and -5 °C for 12 months on the quality of pretreated seeds were investigated. Seeds from each provenance stored at + 4°C were germinated during storage, while seeds stored at -5 °C had high germination parameters after storage. In the third study, dormant seeds stored at -5 °C and +4 °C for 12 months were subjected to stratification (4 weeks of warm + 4 weeks of cold stratification) and then germinated at 30/20 °C, 20 °C and 25/4 °C. Germination performance was not reduced by storage temperature in any provenances but was significantly affected by germination temperature, and the 25/4 °C regime always gave the highest germination parameters (GP = 60.8, GV = 6.6). © Tübi?tak.
Açıklama
Anahtar Kelimeler
Fraxinus angustifolia subsp. oxycarpa, Pretreatment, Seed dormancy, Seed storage
Kaynak
Turkish Journal of Agriculture and Forestry
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
29
Sayı
4
