English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The aim of this study was to investigate the effects of irrigation levels (irrigation after 70, 110 and 150 mm of pan evaporation), phosphorus fertilizer levels (non-application of phosphorus fertilizer and application of 25 and 50% of recommended doses) and different species of Mycorrhiza (nonapplication of mycorrhiza, application of Glomus intraradices, Glomus mossae, Glomus hoei and coapplication of the three species) on growth, essential oil production and physiological characteristics of medicinal plant, purple coneflower, in two crop years of 2015 and 2016. The study was performed in the form of split-split plot based on random block design. In most of the studied traits, decrease in water content for irrigation after 70 to 110 mm had no significant effect on vegetative traits and essential oil yield of purple coneflower. In irrigation after 150 mm of pan evaporation, despite a significant reduction of 44% in vegetative traits such as plant yield, the use of a number of fertilizer treatments, such as 50% of phosphorus application, combined with the application of mycorrhizal species and G. hoei species without phosphorus fertilizer, completely prevented the depressant effect of dehydration. In most of the traits, including wet and biological function per unit area, percentage of colonization, relative water content and aperture length, application of phosphorous fertilizer alone in full irrigation conditions (irrigation after 70 mm of pan evaporation), moderate dehydration (irrigation after 110 mm of pan evaporation) and severe dehydration (irrigation after 150 mm of pan evaporation), had no effect. The combined application of phosphorus and mycorrhiza fertilizer in irrigation after 70 and 150 mm of pan evaporation had no effect on the traits; however, at irrigation after 110 mm of pan evaporation, most of the treatment of combined application of phosphorus fertilizer and mycorrhiza increased significantly, especially in vegetative traits. Therefore, increase in the growth characteristics of purple coneflower at irrigation after 110 mm of pan evaporation with most fertilizer treatments did not affect these traits. The highest and lowest essential oil yields were obtained as 27.4 and 25.5 g in G. intraradices treatment with irrigation after 150 mm of pan evaporation and non-application of fertilizer with irrigation after 70 mm of pan evaporation. Considering the economic importance of the essential oil of purple coneflower, planting of this plant even in severe dehydration with the application of mycorrhiza may appear possible without reducing the essential oil yield, even though growth is negatively affected by dehydration.

applied ecology and environmental research

REDUCTION POSSIBILITY OF PHOSPHORUS USING WITH THE APPLICATION OF MYCORRHIZA IN PURPLE CONEFLOWER (ECHINACEA PURPUREA L.) THROUGH PHYSIOLOGICAL TRAITS AND ESSENCE YIELD UNDER DIFFERENT IRRIGATION LEVELS