نتایج جستجو برای: essential oil crops
تعداد نتایج: 518252 فیلتر نتایج به سال:
پژوهش های بسیاری نشان داده اند که گیاهان جنس zygophyllum غنی از ترکیبات تری ترپن ساپونین وکیونوویک اسید وفلانویید هستند . در این پژوهش به بررسی سه دسته از ترکیبات طبیعی پرداخته شده است یکی از این دسته ترکیبات روغن های فرار به نام essential oil هستند که از این دسته 27 ماده شناسایی شد ومقدار آنها در گیاه مشخص گردید. دومین دسته تر کیبات آنتراسن است که از این دسته نیز 2 ترکیب مشخص گردید وسومین د...
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Lavender (Lavandula angustifolia Mill.) is one of the most widely grown essential oil crops in the world. Commercial extraction of lavender oil is done using steam distillation. The objective of this study was to evaluate the effect of the length of the distillation time (DT) on lavender essential oil yield and composition when extracted from dried flowers. Therefore, the following distillation...
In recent years, application of essential oils derived from aromatic plants has been considered as low-risk insecticides. These compounds have repellency, insecticidal and growth-reducing effects on immature stages of a variety of insects. Since it is not possible to use pure essential oils in agricultural fields and greenhouses, development of commercial formulations essential-oils is necessar...
Regional crops distribution is an import subject for developing modern agriculture now. Based on existing distribution of 7 grain and oil crops in Sichuan province, this paper chose 5 economic evaluation indexes to discuss the regional distribution of grain and oil corps in Sichuan with the method of grey situation decision. According to the row decision and column decision, this paper shows th...
Spodoptera frugiperda is a polyphagous insect that causes economic losses to several crops in Brazil and is the major obstacle to corn production. Researches focusing on alternative control, e.g. botanical products are expanding to offer a wide variety of molecules that interfere with different biological parameters of insect pests. Thus, this study tested the hypothesis that clove essential oi...
Introduction Biodiesel producers have long recognized the need for new sources of oil feedstock if biodiesel is to continue displacing petroleum-based diesel fuel. One potential source of oil that could minimize competition with food crops is microbial oil, with photosynthetic algae being the most widely studied option. An understanding of algal lipids, their native biochemistry and interaction...
The potential of three arbuscular mycorrhizal fungi (AMF) - Glomus mosseae, G. fasciculatum and G. intraradices- to enhance the production of essential oil and plant growth parameter was investigated in sweet basil (Ocimum basilicum). The AMF inoculation significantly increased plant height, fresh and dry matter yield, oil content and oil yield as compared to non-inoculated basil plants. Essent...
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