الفهرس 
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Abstract
The sage plant Salvia officinalis L. is one of the labiatae. It’s a perenntial herb. It was found in its natural condition in Spain along the Meditreanian coast, the east side of the Adriatic and in different areas of the world. It was used in ancient Egypt for different purposes such as increasing fertility in women, restoring old age and restoring energy. Sage is used as topical anti-inflammatory agent, stimulant, tonic dyspepsia and carminative. This study aimed to increase the yields of the herb and its essential oil content with high quality and quantity of Saliva officinalis by using different laser sources including (He-Ne, He-Cd and Ar. laser). The dry and wet Salvia seeds were exposed to He-Ne, He-Cd and Ar. lasers for 2, 5 and 10 mints with power density of 95 mW/cm2. Germination percent, germination speed, length of seedling, root length, plant height, number of branches/plant, number of leaves/plant, fresh weight, dry weight, essential oil percent, chlorophyll a, chlorophyll b, carotenoids, nitrogen percent, phosphorus percent, potassium percent, manganese content, cupper content, total carbohydrates, protein percent and the composition of essential oil samples were determined.