نوع مقاله : مقاله پژوهشی
نویسندگان
1 بخش زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی، واحد تبریز، تبریز، ایران
2 بخش زراعت و اصلاح نباتات دانشگاه آزاد اسلامی واحد تبریز، تبریز ایران
3 هیئت علمی
4 بخش زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی واحد تبریز، تبریز، ایران
5 بخش تحقیقات علوم زراعی و باغی مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان آذربایجان غربی، سازمان تحقیقات، آموزش و ترویج کشاورزی،
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Objective: This research investigated the effect of mycorrhizae and growth-stimulating bacteria on hyssop's quantitative and qualitative characteristics under different irrigation levels.
Materials and methods: The experiment was conducted as a split plot based on a randomized complete block design with three replications at the West Azarbaijan province research centre (Saatlo station) over two crop years. Different levels of irrigation, including normal moisture conditions, mild stress, and severe stress to the main plots, and inoculation with mycorrhiza (My), Azotobacter (Az), Pseudomonas (Pse), Az + Ps, My+Az+Pse and non-inoculation treatment (control) were assigned to sub-plots.
Results: The highest plant height, total fresh weight, and leaf nitrogen were assigned to the treatment with Pseudomonas (Pse) under normal irrigation conditions. The maximum essential oil percentage and essential oil yield were related to Psetreatment under mild stress conditions. In all biofertiliser treatments, plant height, total fresh weight, chlorophyll a and b, carotenoid content, nitrogen, phosphorus, and potassium content of leaves decreased with increasing water stress. In contrast, proline content and ion leakage increased. Inoculation with My+Az+Pse under mild and severe stress conditions increased plant height, shoot weight, chlorophyll a , carotenoid, proline, nitrogen, phosphorus, and essential oil yield. This treatment also reduced the amount of ion leakage compared to control.
Conclusion: The separate application of each of the Pse, My, and Az treatments under mild stress conditions resulted in obtaining the maximum essential oil yield, and the combined application of My+Az+Pse adjusted water stress on the essential oil yield under severe water deficit.
کلیدواژهها [English]