Wyniki wyszukiwania - BazTech

1

The effect of soil risk element contamination level on the element contents in Ocimum basilicum L.

Růžičková P., Száková J., Havlík J., Tlustoš P.

Archives of Environmental Protection

|

2015

|

Vol. 41, no. 2

47--53

EN

Red basil (Ocimum basilicum L.) cv. Red Rubin was cultivated in model pot experiment in the soil amended by arsenic, cadmium and lead solutions in stepwise concentrations representing the soil concentration levels of former mining area in the vicinity of Příbram, Czech Republic. The element levels added to the soil reached up to 40 mg Cd, 100 mg As, and 2000 mg Pb per kg of soil. Moreover, essential macro-and microelements as well as cyanidine contents were investigated to assess their potential interactions with the risk elements. The extractable element portions in soils determined at the end of vegetation period differed according to the individual elements. Whereas the plant-available (extractable with 0.11M CH3COOH) content of Cd represented 70-100% of the added Cd, the mobile portion of Pb did not exceed 1%. The risk element content in plants reflected the increasing element contents in soil. The dominant element portions remained in plant roots indicating the limited translocation ability of risk elements to the aboveground biomass of this plant species. Although the risk element contents in amended plants significantly increased, no visible symptoms of phytotoxicity occurred. However, the effect of enhanced risk element contents on the essential element uptake was assessed. Considering inter-element relationships, elevated sulphur levels were seen in amended plants, indicating its possible role of phytochelatin synthesis in the plants. Moreover, the molybdenum contents in plant biomass dropped down with increasing risk element uptake by plants confirming As-Mo and Cd-Mo antagonism. The increasing content of cyanidine in the plant biomass confirmed possible role of anthocyanins in detoxification mechanism of risk element contaminated plants and suggested the importance of anthocyanin pigments for risk element tolerance of plants growing in contaminated areas.

2

Effects of magnesium nutrition under varying soil moisture conditions on some physiological features of fragrant basil (Ocimum basilicum L.)

Mikiciuk M., Malinowska K., Wróbel J.

Ecological Chemistry and Engineering. A

|

2008

|

Vol. 15, nr 1-2

93-102

EN

The first factor of the experiment was the level of nutrition with magnesium (O; 0.30 and 0.90 g Mg per Mitscherlich pot), whereas the other factor was the level of soil moisture (30 % and 60 % of the maximum water capacity). The following physiological features of fragrant basil were determined: assimilation surface of leaf laminas, fresh mass of the aboveground part, dry mass of leaves, stalks and roots, the structure of dry mass yield.

PL

Pierwszym czynnikiem doświadczalnym był poziom żywienia magnezem (0; 0,30 i 0,90 g Mg na wazon typu Mitscherlicha), drugim natomiast poziom uwilgotnienia gleby (30 i 60 % pełnej pojemności wodnej). Oznaczono następujące cechy fizjologiczne bazylii wonnej: powierzchnia asymilacyjna blaszek liściowych, świeża masa części nadziemnej, sucha masa liści, łodyg i korzeni, struktura plonu suchej masy.

3

Effect of nutrition with magnesium in various moisture conditions of soil on the dynamics of elongation growth of fragrant basil (Ocimum basilicum L.)

Mikiciuk M.

Chemia i Inżynieria Ekologiczna

|

2005

|

Vol. 12, nr 12

1387-1394

EN

The aim of the studies was to determine the effect of nutrition of the soil with magnesium in differentiated soil moisture conditions on the dynamics of the elongation growth of fragrant basil. The first factor of the two year pot experiment was the level of the nutrition with magnesium (O, 0.30, 0.90 g of Mg per pot), the other factor was the level of soil moisture (30 and 60% of full water volume). Usefulness of the logistic Richards function for the description of the elongation growth of fragrant basil was statistically confirmed. The elongation growth of Ocimum basilicum L was of typical sigmoidal character independently of the experimental combination in both years of the studies. In the second year of the experiment the average height of this plant fertilized with magnesium in 0.30 and 0.60 g doses per pot was larger of 3.5 cm and 3 cm, respectively than the height of basil which was not fertilized with Ibis element.

PL

Celem pracy było określenie wpływu doglebowego żywienia magnezem, w zróżnicowanych warunkach wilgotnościowych gleby na dynamikę wzrostu elongacyjnego bazylii wonnej. Pierwszym czynnikiem dwuletniego doświadczenia wazonowego był poziom żywienia magnezem (0; 0,30; 0,90 g Mg na wazon), drugim - poziom uwilgotnienia gleby (30 i 60 % pełnej pojemności wodnej). Statystycznie potwierdzono dużą przydatność funkcji logistycznej Richardsa do opisu wzrostu elongacyjnego bazylii wonnej. Wzrost badanej rośliny, w obu latach badań, niezależnie od kombinacji doświadczenia miał typowy, sigmoidalny przebieg. W drugim roku badań średnia wysokość tej rośliny żywionej magnezem w dawce 0,30 i 0,60 g na wazon była większa od wysokości bazylii nie dożywianej tym pierwiastkiem.