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Organic manuring have significant influence on the sweet corn growth. Important element of sweet corn agrotechny can be catch crops cultivated on the ploughing down. A field experiment was carried out at the Zawady Experimental Farm near Siedlce. There was investigated the effect of green manures applied as sunflower catch crops on changes in the content of dry matter, ascorbic acid, total sugars...
There is an existing need for the development of rapid and easy-to-perform methods for analyzing chemical composition of soil basing on simultaneous extraction of many elements in a single solution. Furthermore, it is desirable that mineral concentration determined in soil using these methods should be significantly correlated with its content in plants. Many researches indicated that soil concentration...
Chicory of radicchio type is a vegetable similarly cultivated to head lettuce, yet featuring relatively longer plant growing period. Most of this crop cultivars characterize intensive red color of leaves and white leaves venation. Field experiment carried out in 2005–2007 involved cultivation, from transplants, of radicchio type chicory of ‘Indigo’ cultivar for autumn harvest. Seeds were sown at the...
Yield and fruit quality of cucumber depend on such factors as plant cultivar, plant nutrition and the cultivation method. The presented paper contains results confirming the usefulness of rockwool and coconut fibre as well as the application of the fertigation system in cucumber growing. Studies on the growing of cucumber Onyks F1 cultivar were carried out in the years 2003–2005 in an unheated greenhouse...
Substrate yield-forming properties and their impact on common mushroom yields were evaluated in the course of the performed experiments. All substrates for mushroom cultivation were characterised by considerable variability of yield-forming characteristics. The following yield-forming factors in mushroom cultivation were analysed: weight of substrate in kg·m-2 of cultivation area, the method of substrate...
The aim of this research was to determine the influence of various forms, diverse doses, and methods of application of nitrogen fertilizers and foliar nutrition on the concentration of soluble sugars, ascorbic acid and phenolic compounds in cabbage. The three year (2005–2007) field experiment was carried out with ‘Galaxy’ F1 white cabbage. Two factors were examined: the type of N fertilizer ammonium...
The aim of an experiment conducted in 2006–2008 was to determine the effect of soil fertilization with Crop Care on the yield and chemical composition of carrot cultivars with orange- and purple-colored storage roots. The yield and chemical composition of three carrot cultivars: ‘Florida F1’ with orange-colored roots, ‘Deep Purple F1‘ with purple-colored roots and ‘Purple Haze F1‘ with roots that...
Within the Ocimum genus there occur about 200 species in different varieties and forms. They differ in the essential oil content and quality, as well as in many morphological features. The studies conducted in the years 2008–2009 were aimed at defining the effect of basil cultivar (‘Kasia’ and ‘Wala’), as well as of the differentiated doses of CaCO3 (6 or 12 g·dm-3 of substratum) upon the biological...
The effect of CaCl2 and NaCl with anti-corrosion additives (ammonium phosphate and sodium hypochlorite in amount of 3 to 5% of preparation weight), protected by Polish patent no. 198058, applied in concentrations of 4, 8 and 12 g dm-3 on germination and seedling vigour of Lolium perenne L. cv. Solen and Festuca rubra L. cv. Nimba was evaluated. Other studied parameters were: chlorophyll content, chlophyll...
The study was conducted in two successive years to examine the capacity of formation of sylleptic shoots in nursery trees of ‘Abbé Fétel’, ‘Conference’ and ‘Starking Delicious’ pear cultivars grafted on quince MA and quince BA 29 rootstocks during the first year after bud grafting. Tree height, trunk diameter – 10 cm above the bud union and number of sylleptic shoots were measured at the end of each...
Common walnut has gained recognition in Poland as a tree decorating the space around us because of its habit and impressive leaves. More and more frequent use of walnut in the city landscape induced a more thorough analysis of the factor causing a significant decrease in the decorative values of this plant. The aim of this paper was to trace the numerical strength dynamics of Ch. juglandicola occupying...
In recent years in Poland there has been an increasing interest in the field growing of sweet peepers, both among producers and consumers. Therefore, research should be conducted to select cultivars well adapted to less favorable temperature conditions and suitable for cultivation in the field, and to increase their yield. A field experiment was carried out in the years 2006–2008 in the Garden of...
The aim of the study was to evaluate the usefulness of glassy fertilizer as a slow-release fertilizer in container cultivation of Taxus × media and Physocarpus opulifolius in comparison with a common Osmocote Exact fertilizer used in nurseries. Glassy fertilizer granulated to Ø> 0.3 mm and Ø< 0.3 mm was applied in two doses: 3 and 6 g·dm-3. Macroelements, pH and EC were analysed for their content...
Greenhouse cultivation of four cultivars of cherry tomato (Goldita, Faworita, Flavorino, Organza) on the substrates used for the second time (cocofibre and rockwool) did not show any differences in their yielding. Fruits obtained from cultivation on the cocofibre contained less dry matter and vitamin C. During the vegetation period some changes in fruit quality were observed. In the first weeks of...
Garden orache (Atriplex hortensis L.) belongs to Chenopodiaceae family. Usable parts of this species are the young stems and leaves characterized by a high content of protein. The aim of the study was the estimation of the effect of sowing date (2nd and 3rd 10-days’ period of April, and 1st 10-days’ period of May) on the biological value of garden orache leaves. The experiment was conducted in 2008–2009...
This study was conducted in Malatya, between 1999 and 2003, and the region's most important dried apricot variety, Hacihaliloglu was used as material. In the study, the effect of 5 different combined or alone pruning treatments on the growth, fruit quality and yield characteristics were determined in comparison with non-pruned trees. Pruning treatments in different periods did not statistically affect...
The objective of the present study that has been carried out in the Institute of Chemistry, Warsaw University of Life Sciences, was to investigate antimicrobial activity of a number of sweet marjoram extracts. Raw (fresh or dried) plant material from culinary or medicinal herbs may contain varying amounts of bacteria or protozoa, including some known human pathogens. The isolates, which are prepared...
The aim of the study was to induce somaclonal variability in the callus culture of L. hirsutum f. typicum and L. chilense and to characterize them in respect to tolerance to salinity. Callus was initiated on the cotyledon fragments grown on the medium supplemented with NAA and BAP. The tolerance of callus to salt was tested on MS media containing NaCl in concentration 25, 50, 75, 100, 200 mM. Callus...
Numeorus analytical methods have been developed for determination of micronutrients, heavy metals and trace elements in soil. However, rapid and easy-to-perform methods are still needed for chemical composition analysis of soil that would be based on simultaneous extraction of multiple elements. Furthermore, it would be beneficial if element concentration in soil using these methods were correlated...
Basil, cultivated as a medicinal and seasoning plant, has strict requirements as to climate, as well as soil fecundity and humidity. The herb harvested during flowering period, contains, besides valuable essential oil, plant dye, vitamins and mineral components. The undertaken studies were aimed at analyzing the contents of macro and microelements in the herbs of two basil cultivars (‘Kasia’ and ‘Wala’),...
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