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The chemical composition and activity of herbal raw material depend, among others, on ontogenetic variability. The present study investigated the effect of harvest date of winter savory (Satureja montana L.) herb and plant age on fresh and dry herb yield as well as on the content of L-ascorbic acid, carotenoids, chlorophylls, essential oil, flavonoids and tannins. S. montana herb from a one- and two-year-old...
Similarly to other species of the genus Satureja (Lamiaceae), winter savory is valued in traditional medicine in many countries of the world. Most studies on winter savory are primarily focused on the chemical composition and biological activity of its raw material, but few studies concern proper growing conditions. The aim of the present study, conducted on one-year-old plants, was to determine relationships...
Winter savory (Satureja montana L.) is an aromatic subshrub of significant medicinal and seasoning qualities. Winter savory herb yield and quality depend on various factors, including environmental and agronomic ones. The aim of the present study was to evaluate the effect of winter savory plantation establishment method (seedlings, herbaceous cuttings) on the morphological traits and raw material...
Artichoke is valued as a vegetable and medicinal plant. The aim of the study was to determine the effect of irrigation and leaf harvest date of artichoke grown in southeastern Poland on total yield and marketable fresh leaf yield, its structure and the content of biologically active substances: total phenolic acids, flavonoids and tannins. Irrigation contributed to an increase in fresh leaf yield,...
Biochemical assessment was performed of leaves, flower buds and flowers of lavender. High positive correlation was demonstrated between the essential oil contents and antioxidant activity (AA) (R = 0.9688), total phenolic acids and AA (R = 0.9303), as well as high negative correlation between flavonoid contents and AA (R = -0.9760). Results of the foregoing studies also suggest that AA of lavender...
The quality of fresh herbs used mainly as food products, is dependent on a number of factors, including the agronomic and environmental ones. The pharmacopoeial material of summer savory is the whole or ground herb, which besides essential oil, contains many other biologically active compounds, such as tannins, carotenoids, flavonoids, and minerals. The aim of the study was to evaluate the yielding...
A two years’ field study was conducted to compare the influence of perennial ryegrass (Lolium perenne L.), white clover (Trifolium repens L.), perennial ryegrass + white clover mixture and mowed weeds used as living mulches with the influence of linuron 675 g·ha-1 on weed infestation and yield of carrot (Daucus carota L.) ‘Flakkese 2’ under ridge cultivation. Living mulches did not affect growth of...
The biological value of fresh and dried spice material is strongly influenced by climatic and agronomic conditions as well as by genetic and ontogenetic factors. In the available scientific literature, few publications present the problems of growing herbal plants for direct consumption and discuss the biological value of fresh herbal material. Therefore, the aim of the present study was to evaluate...
Growth and yield of herbal plants are closely connected with meteorological conditions and agrotechnical procedures. We undertook studies on determining the effect of tarragon planting density upon fresh and dry herb yield, as well as the contents of nutritious and physiologically active substances: L-ascorbic acids, chlorophylls, carotenoids, tannins and flavonoids, as well as the contents, yield...
Hyzop lekarski (Hyssopus oficinalis L.) jest wieloletnią rośliną pochodzenia Śródziemnomorskiego. Surowcem jest ziele (Hyssopi herba) o wielokierunkowym działaniu leczniczym. Główną substancją biologicznie aktywną jest olejek eteryczny. Zawartość olejku oraz jego skład chemiczny decyduje o aromacie surowca. W okresie wegetacji rośliny zmienia się zawartość olejku eterycznego. Celem badań była ocena...
Hyssop (Hyssopus officinalis L.) is an oil plant, acts antiseptically and stimulates digestion. It is applied both for curative and culinary purposes. Studies conducted in the years 2006–2008 were aimed at the effect of plant harvest term (mid June – plants in vegetative phase, mid July – beginning of flowering, mid August – full blooming, mid September – after flowering) and plant spacing (30 ×...
One of the more important species of herbal plants, grown in many countries for medical and nutritional purposes is sweet marjoram. The marjoram herb is an abundant source of valuable biologically active substances and mineral components. Considering the vast application of this plant studies were undertaken on the assessment of growth and yielding of sweet marjoram, depending on harvest time. The...
Studies were carried out in 2003–2005. The dependence between harvest date and yielding of marjoram (cv. ‘Miraż’) was investigated. The plantation was set from a seedling produced in a greenhouse. Plants were set in 30 × 40 cm spacing. Two weeks after setting, part of plants were cut and shoot tips with the first leaf pair were removed. The herb harvest was made twice: in the middle of July and at...
Doświadczenie przeprowadzono w latach 1997–1999 na plantacji dwuletniej. Badano wpływ terminu zbioru na plon świeżego ziela, powietrznie suchego ziela oraz powietrznie suchych liści szałwii lekarskiej (Salvia officinalis L.) odmiany ‘Bona’. Plantacja została założona każdorazowo w roku poprzedzającym badania poprzez sadzenie rozsady szałwii w ostatniej dekadzie maja (w 1996, 1997 i 1998 roku). Rozsadę...
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