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This study assesses the effect of meta-topolin (mT), an aromatic natural cytokinin, on micropropagation of pear rootstock OHF-333 (Pyrus сommunis L.). Cultures were incubated in a growth chamber under controlled conditions. An in vitro culture was maintained on a modified culture medium Murashige and Skoog [1962] supplemented with meta-topolin (0 μM, 3 μM, 6 μM, 9 μM or 12 μM). After three weeks’...
Sambucus nigra, S. kamtschatica and S. racemosa plants growing in natural habitats or commercial nurseries in Poland, showing symptoms of vein clearing or chlorotic patterns were found to be naturally infected with Cherry leaf roll virus (CLRV). Nine virus isolates were characterized by enzyme-linked immunosorbent assay (ELISA) and sequence analysis of RNA2 fragments. Serological test using ELISA...
Sweet pepper is an important vegetable plant, not only because of its economic importance, but also for the nutritional value of its fruits, mainly due to the fact that they are an excellent source of natural colours, especially carotenoids, antioxidant compounds and sugars. Saccharides content in the pepper fruits is the most important component of sweet taste of these fruits. In the available literature...
In modern greenhouse cultivations using the shoot bending method, the architecture of rose shrub is obtained by bending of primary stem, forming and suitable cutting of flower shoots and simultaneously bending of low-valuable stems. The studies performed in 2010–2012 indicated that the bending of stems of rose cv. ‘Red House’ increase the sprouting of high quality flower shoots, and parameters of...
In Poland, zeolites are relatively rare substrates. These are natural aluminosilicate minerals with excellent sorptive and iron exchange properties. Mixing substrates with zeolite improved the physical and chemical properties of the media such as total porosity or water holding capacity. The research was aimed at assessing the usefulness of zeolite in the production of Catharanthus roseus and Gazania...
One of the method of plant protection, including the protection of pea, from phytopathogens is the biological one, especially applied in ecological cultivations. The effectiveness of biotechnical preparations such as Biosept 33 SL, Grevit 200 SL, Biochikol 020 PC, Bioczos BR and a fungicide Miedzian 50 WP in the protection of pea cv. ʻSześciotygodniowy TOR’ from pathogenic fungi was studied. The greatest...
Solar photovoltaic greenhouses have become more popular, especially in the countries of southern Europe, due to specific government remuneration policies. However, many agronomic questions need to be addressed. This research was carried out in three types of commercial greenhouses covered with different materials (polycarbonate modules – PCM, traditional – TPM and innovative semi-transparent – IPM...
Noctuinae are a challenge for effective control in vegetable crops. The species most dangerous for agricultural crops in central Europe are: Agrotis segetum, A. exclamationis, Xestia c-nigrum. The aim of presented study was to assess the sensitivity of A. exclamationis to 8 native strains of entomopathogenic nematode srepresenting two species: Steinernema feltiae (Filipjev) and Heterorhabditis megidis (Poinar,...
In this study, antioxidant activity (AA), total phenolics (TP), total flavonoids (TF), individual phenolic compounds (IPCs), vitamin C and six other fruit characteristics including weight loss, flesh firmness, color, soluble solids content (SSC), dry matter and titratable acidity (TA) of Caucasian whortleberry fruits (Vaccinium arctostaphylos L.) were determined at harvest and at a week postharvest...
In temperate climate zones, where a continental climate prevails, the appearance of males in populations of most aphid species takes place only in the autumn. Holocyclic and heteroecious species typically have winged males obligatorily. In holocyclic and monoecious species, males are not always winged morphs. Photoperiod is the primary factor responsible for the change in the manner of reproduction,...
Effect of water supply on Satureja hortensis L. (summer savory) ‘Budakalászi’ cultivar was investigated. Three saturation levels (70–50–30%) of soil water capacity (SWC) applied in climatic chamber resulted in significant changes of physiological parameters of savory plants. Compared to the control treatment (70% of SWC) the driest condition (30% SWC) caused more than 20% decrease of the relative...
Flowers are an important part of a plant which contains a great variety of natural antioxidants, such as polyphenols, carotenoids and many other bioactive and nutraceutical compounds. Edible flowers have been used in culinary preparations for centuries to improve the nutritional and sensorial qualities of food. The aim of the experiment was to compare the biological value of Borago officinalis, Lavandula...
Vitex agnus-castus L. (chaste tree) is a native plant species carrying valuable ornamental, functional and medicinal properties. It was aimed to determine the most practical and optimum rooting conditions for successful vegetative production of V. agnus-castus. It was focused on definition of optimal cutting collection time, and specification of the effects of different rooting substrates and IBA...
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