Phenological stage of growth stages and performance of Nepeta crispa Willd. in agricultural conditions

Document Type : Scientific Letters

Authors

1 Assistant prof, Agricultural and Natural Resources Research and Education Center, Hamedan, Iran

2 Expert of Natural Resources Department, Agricultural and Natural Resources Research and Education Center, Hamedan, Iran

3 Associate Prof, Department of Plant Production and Genetics, Bu-Ali Sina University, Hamedan, Iran

10.22092/irn.2024.132662

Abstract

The increasing attention to the trade of medicinal plants and their over-harvesting from rangeland habitats has threatened the survival of many medicinal species. This issue is particularly concerning when the existence of exclusive and rare species within a region is at risk of extinction. Nepeta crispa, a valuable and endemic medicinal rangeland species of the country, is considered endangered. To safeguard Nepeta crispa from the impacts of over-harvesting, conducting compatibility studies, understanding its ecological requirements, and establishing cultivated populations in agricultural settings using improved high-yielding cultivars are crucial. The Nepeta crispa's essential oil, containing the compounds 1 and 8-cineol, exhibits potent antimicrobial activity against microorganisms that cause throat inflammation. Given its therapeutic properties, prioritizing compatibility studies for Nepeta crispa became crucial. To this end, seeds were collected in the spring of 2016 from its natural habitat along the road from Hamedan to Tuiserkan. These seeds were sown on March 14, 2016, in the Hamedan medicinal plant garden, with germination observed on March 25, 2016. Research indicates that 1000 seeds weigh 0.5 grams, and the plant yields 900 kg of branch biomass per hectare during the flowering stage. The domestication process, encompassing five growth stages from seed sowing to full flowering and seed maturation, spanned 128 days, concluding on July 20, 2017.

Keywords

References

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Iran Nature
Volume 9, Issue 5 - Serial Number 48
November and December 2024
Pages 65-71

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