اثر كم آبياري و كود دامي بر عملكرد ماده ي خشك اندام هاي رويشي و اسانس گياه دارويي بادرشبي (Dracocephalum moldavica) در جيرفت

Effects of Water Deficit and Manure on Above Ground Dry matter and Essential Oil Content of Dragonhead {Dracocephalum Moldavica) in Jiroft Iran

The effects of drought and application of manure on dry matter yield and essential oil content of Moldavian dragon head {Dracocephalum moldavica) were studied in greenhouse with 15 treatments and 3 replications by using a strip Plot in a randomized complete block design arrangement in Jiroft. Three levels of irrigation treatments (irrigations at 75%, 50% and 25% of F.C.) were used as vertical factor and four levels of manure applications (10, 20, 30 and 40 t/ha) as horizontal factor. The results showed that the effects of water stress on dry matter and manure on essential oil content were significant at 5% and 1% levels of probabilities respectively. Drought stress resulted in dry matter reduction. Maximum dry matter (7573.7 kg/ha) belonged to the least stress condition (irrigation at 75% of F.C.) and 40 t/ha of manure application. The highest essential oil produced was 13.1 kg/ha. When drought stress was moderate (irrigation at 50% of F.C.) and 30 t/ha at manure was applied, essential oil amounted to be 9/91 kg/ha, but the difference between 40 and 30 t/ha of manure was not significant. It can be concluded that moderate drought stress and application of 30 t/ha of manure would be suitable to produce Moldavian dragon head in Jiroft.