Thymus pulegioides chemotipai Lietuvoje: paplitimas, edafinių ir klimatinių salygų įtaka, alelopatinės savybės /

The regularities of the distribution of different chemotypes of large thyme (Thymus pulegioides) in Lithuania, influence of edaphic and climatic factors on quantitative and qualitative composition of essential oils, as well as allelopathic and autoallelopathic effect of different chemotypes were studied in this work. It was established that carvacrol was most abundant chemical compound in essential oils of T. pulegioides, and the individuals of carvacrol chemotype were most frequent in Lithuania. Prevalence of the individuals of cavacrol chemotype is stimulated by higher amount of sulphur and mobile phosphorus in the soil and higher amount of natrium in the soil limited prevalence of these individuals. The individuals of geraniol chemotype of T. pulegioides are rarer in Lithuania, these individuals dominate in Venta climatic sub-district; distribution of the individuals of this chemotype may be stimulated by higher amount of natrium in the soil and higher temperature during butonization and vegetation period and it can be limited by higher amount of sulphur and chlorine in the soil. The studied edaphic and climatic factors could explain the prevalence of 17% of T. pulegioides carvacrol and geraniol chemotype. Linalool and -terpinyl acetate chemotypes are rare in Lithuania; influence of edaphic and climatic factors on the prevalence of these chemotypes was not established. Seed germination of T. pulegioides was most inhibited by essential oil of geraniol chemotype, whereas sprouts development by pure carvacrol exposed through air. The essential oils of different T. pulegioides chemotypes may have different effect on seed germination of monocotyledons and dicotyledons.

Grantor dc:publisher

Institutional Repository of Vilnius University

Year dc:date

2018

Author dc:creator

• Vaičiulytė, Vaida,

Contributors dc:contributor

• Ložienė, Kristina

• Thymus pulegioides ; chemotypes ; edaphic factors ; climatic factors ; allelopathic

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

lit

Repository record dc:identifier

https://repository.vu.lt/VU:ELABAETD28705615&prefLang=en_US

OAI identifier oai:identifier

oai:vu.lt:elaba:28705615