Effects of some pretreatments on germination of bladder-senna (Colutea armena Boiss. and Huet.) and smoke-tree (Cotinus coggygria Scop.) seeds.

This study was carried out to determine effects of pre-treatments including floating in hot water(100 degrees C) followed by continual cooling for 24 hr in the same water floating in tap water for 24 hr submersion in concentrate (98%) sulphuric acid (H2SO4) and cold stratification for different durations (20, 40 and 60 days) and their combinations on seed germination and to investigate how to overcome dormancy of seeds of Colutea armena Boiss. and Huet. and Cotinus coggygria Scop.

Effect of cold stratification treatments on germination of drought tolerant shrubs seeds.

This study was carried out to determine effects of different durations (20, 40, 60 days and control) of cold stratification treatments on seed germination and to overcome dormancy in seeds of twelve different drought tolerant plants. The species used in this study were Arbutus andrachne L., Cistus creticus L.

Effects of cold stratification on germination rate and percentage of caper (Capparis ovata Desf.) seeds.

Caper is an important plant because of its high adaptability to marginal agriculture fields that are not suitable for agricultural crops. Different parts of caper such as roots, fruits, flowers and buds can be used to increase the inhabitant's income. The goal of this research is to determine germination rate and percentage of caper according to different duration of cold stratification (10, 20, 30, 40, 50 and 60 days) treatments.