DETERMINATION OF SEED GERMINATION, OTHER SEED AND SEEDLING CHARACTERISTICS OF SYRIAN JUNIPER (Arceuthosdrupacea (Labill.) Ant. et Kotschy.) AND SOME RECOMMENDATIONS

Authors : H. Cemal Gültekin, Ü. Gülşan Gültekin, Alime Divrik

Pages : 48-54

View : 341 | Download : 3012

Publication Date : 2011-03-19

Article Type : Other Papers

Abstract :Syrian Juniper (Arceuthos drupacea (Labill.) Antoine et Kotschy, synonym:  Juniperus drupacea Labill.) seeds have germination barrier due to its fleshy cone, hard seedcoat, and embryo. Germination under natural conditions can be delayed by this barrier for 4-5 years, while cone flesh alone can postpone it for 1 to 2 years. Seeds freed of this flesh (by animals)  usually germinate in the 3rd or 4th year. Germination can be seen in the same- or the following year if seeds are mechanically scarred by rodents. During the germination, hardened cone scales which cover the seeds fall out and the embryo becomes free to germinate. Combination used for mass production of Syrian Juniper seedling at the Egirdir Forest Nursery is as follows: Seeding in summer “after stratification at room temperature for a month x breaking of seed coats without harming the embryo” results in 53 % germination.  Same seed characteristics of Syrian Juniper; time of seed ripening: October, time needed for seed fipening: 18 month,, mean weight of 1000 seeds: 2674 g, one year old seedling diameter: 3.8 mm, one year old seedling length: 16 cm. 
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