Scarification in Acetic Acid, Hot Water, and Cold Sand Stratification to Improve Carob (Ceratonia Siliqua L.) Seed Germination

This study was carried out to determine the effects of acetic acid, hot water, and cold sand stratification scarification at different periods on seed germination carob (Ceratonia siliqua L.) in Salah Alden province. The seeds were collected from Kirkuk province area September 2016. Carob stratified not treated by soaking glacial acid for 20, 40, 60, 120 min. lab temperature (25oC). Hot water (100oC) also used Experimental design Randomized Complete Block Design (RCBD) with 3 replicates, 10 per each treatment replicate results compared non-treated seeds. After they washed thoroughly sowed black polyethylene grow bags. soil loamy added organic matter. 7 months, data recorded percent growth features including plant height, leaf area, total chlorophyll, root length, fresh dry weight vegetative parts, nitrogen, phosphorous, potassium percentages plant. showed that 60 minutes achieved highest (96.67%), 12.86 cm2, (0.14 gm.), nitrogen 5.52%. 40 gave parts 18.6 gm. (7.05 gm.). phosphorous (0.49% 2.07% respectively).