نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار پژوهشی، موسسه تحقیقات جنگلها و مراتع کشور، گروه بانک ژن منابع طبیعی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی
2 استاد پژوهشی، موسسه تحقیقات جنگلها و مراتع کشور ، بخش مرتع، سازمان تحقیقات و آموزش کشاورزی
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Cultivation and domestication of medicinal plants is a predominant priority for their essential oil production and growing in wide range of climatic conditions in steppic and semi steppic regions of Iran. The seeds of wild plants species have high viability, but they have no uniform emergence in the field. The seeds enhancement process through seeds priming, leads to elevated germination percentage and seed vigor, therefore, rendering the prime seeds suitable for the cultivation. In this research, the seed emergence characteristics of three species of Ziziphora genus (Ziziphra clinopodioides, Ziziphora tenuior and Ziziphora capitata) and three species of Thymus genus (Thymus lancifolius, Thymus kotschyanus and Thymus daenensis) were examined by using osmopriming (polyethylene glycol), hormonal priming (gibberellic acid), matrix priming (vermiculite, perlite, zeolite,), hydropriming (distill water), and control (without priming) in seed technology laboratory of natural resource gene bank in Research Institute of Forest and rangeland, Tehran, Iran in 2015. The maximum seedling length and seedling weight were observed in T. lancifolius via matrix priming. The T. kotschyanus application of Gibberellic acid and hydro-priming, led to increasing seedling length and seedling weight, respectively. For the species of Z. clinopodioides, the seed priming using vermiculite, led to the increase of seedling length and weight of up to 34% and 17%, respectively. The seed treatment with perlite caused higher seedling weight (13%) of Z. capitata to that of control. The result showed that priming with solid material (matrix priming) had more effect on the seed enhancement.
کلیدواژه‌ها [English]
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