نشریه علمی
نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مرتع و آبخیزداری ، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبدکاووس، گنبد، ایران
2 گروه مرتع و آبخیزداری، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبدکاووس، گنبد، ایران
3 گروه مهندسی آب، دانشکده آب و خاک، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران
4 گروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبدکاووس، گنبد، ایران
کلیدواژهها
عنوان مقاله English
نویسندگان English
The experiment was conducted as a factorial in the form of a completely randomized design in three replications. The investigated factors included irrigation cycle (0, 7, 14 and 21 days), compost amount (0, 5, 10 and 15%) and water source (river water). In order to ensure uniformity in the growth of seedlings, the first watering was done immediately after planting for all treatments to establish the plant. According to the distance of the plants (1.5 meters apart), each row included 4 plants, which were randomly sampled. At the time of harvesting mucilage parameters, total nitrogen, quercetin was measured.
According to the obtained results, the investigated treatments had a significant effect on the plant height, the number of sub-stems, the yield of flowering branches, the percentage and yield of essential oil and borage mucilage. The highest number of sub-stems, height, yield of flowering branch and production of mucilage and essential oil were obtained in non-stress conditions and with the use of 10% chemical + biological fertilizers, and the lowest values were obtained in the conditions of vegetative + reproductive stress and with the use of 50% chemical + biological fertilizers. The combined use of 10% chemical + biological fertilizers compared to the use of 11% chemical fertilizers improved plant height by 10% in vegetative stress and 30% in reproductive stress. The results showed that carotenoid and total chlorophyll decreased due to drought stress.
کلیدواژهها English
