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Phoma strasseri is one of the major pathogen of peppermint (Mentha piperita). An important criterion in the classification of Phoma spp. is conidiogenesis, which has never been studied in P. strasseri before. The analysis using a FEI Tecnai Spirit G2 electron microscope revealed enteroblastic phialidic ontogeny as a type of conidiogenesis present in this species. Conidia are formed on small conidiogenous...
Grasses are very often infected by endophytic fungi of the Neotyphodium and Epichloë genera. They can produce metabolites toxic to livestock as well as beneficially affect grasses. Thus, endophytes can be used for plants improvement. These facts stimulated a more detailed investigation aimed at providing more insight into the problem of these endophytes in Poland. The aims of the research were as...
Iodine biofortification of vegetables can become an alternative (to iodized salt) method of introducing this element into human diet. Development of agronomic rules concerning its application requires detailed evaluation of iodine influence on plant physiological and biological processes including mineral nutrition and quality of yield. The aim of the study was to determine the effect of iodine and...
Gardenia is an ornamental shrub or small tree that has thick dark evergreen leaves and fragrant flowers of white colour. It is used as a garden plant in the mild climate as well as a flowering potted plant. Many studies have been taken to propagate gardenia in vitro and to reduce the time necessary for the introduction of new cultivars. The present study investigated the effect of different light...
Fungi Trichoderma spp. are present in nearly all soils and other habitats. Most of Trichoderma strains are efficient for control of some pathogens. Some strains induce plant native defence mechanisms. Botrytis cinerea [Pers.: Fr.] causes economic losses on a wide range of cultivated plants and stored fruits. In presented work Trichoderma asperellum [strain T1] isolated from commercial product was...
The improvement in zucchini growth in climatic conditions of Poland can be achieved by soil mulching and flat covering of plants. In the years 2009–2010, in Research – Horticulture Station belonging to Department of Horticulture at Wrocław University of Environmental and Life Sciences there was conducted two-factorial experiment with the use of synthetic mulches (polyethylene black and white foil,...
The leaves of lettuce are very reach source of vitamins, macro and microelements and biologically active compounds. However, these plants contain also anti-nutritional compounds as nitrates and nitrites which levels depend on growth and storage conditions. The aim of this study was to determine the effect of foliar application of CaCl2 treatment before harvest on nitrate and nitrite accumulation,...
Amaranth is not only of high dietetic (seeds and leaves), but also pro-health, ecological, agricultural, and ornamental quality. The aim of present research was to analyze the influence of cultivar, plant spacing, and diverse NPK fertilization on yielding and Cu, Zn, Fe, and Mn contents in seeds, leaves, and stems of amaranth (Amaranthus cruentus L.). The paper was based on three-year field experiment...
The problems in the cultivation of highbush blueberry and cranberry are diseases caused by infections factor, particularly by fungi and lately also by viruses. In the years 2008–2010 research concerning the detection and identification of viruses occurring on production plantations of the highbush blueberry located in the central and southeastern Poland and the cranberry growing on the separate parts...
Pears, besides apples, are also popular fruit species at the Polish fruit market. It is connected not only with their delicious taste but, among others, year-round availability at the market. The research objective was to determine and compare the basic chemical composition, i.e. dry matter, N-compounds (total), mineral elements (total), dietary fiber and easily hydrolyzed sugars (NFE), vitamin C...
Arugula is a common name for several leafy vegetable species of the family Brassicaceae. Eruca sativa and Diplotaxis tenuifolia are grown commercially for human consumption. The effect of two types of flat covers, perforated PE film and non-woven PP fabric, on the yield and quality of arugula was determined in the study. A two-factorial experiment was conducted in 2006–2008 in the Experimental Garden...
In the intensive tomato production under covers, the soilless cultivation dominates. The objective of this study was to assess some quality traits of cherry tomato and middle fruit size tomato, concerning their chemical composition and sensory attributes as well as their correlation to growing medium and harvest time. Cherry tomato (Dasher F1 and Organza F1) and middle fruit size tomato (Admiro F1...
Intercropping of vegetables is experiencing a renaissance with the uptake of organic farming. Cultivation of several plant species simultaneously eliminates negative traits of homogenous cultivation, supports bio-diversity and remains compliant with the rule of balanced agriculture. Carrot and root parsley are two vegetables that have very high requirements towards the conditions of growth. Their...
Dense trees planting is one of the ways to obtain high yielding from area unit soon after establishing an orchard. Diminished space occupied by trees in dense planting systems also brings about their weaker vegetative growth. Another factor influencing growth and yielding is planting trees in ridges. Investigation was conducted in the orchard belonging to Research – Development Station in Samotwór,...
In many ornamental plant species the light spectrum can, to a varied extent, modify growth and flowering. The literature offers information on the inhibition of growth of seedlings and cuttings of ornamental plants exposed to blue light. In this paper was investigated the effect of light of a varied spectral composition on the growth of scarlet sage (Salvia splendens) seedling. The plants were cultivated...
Sooty blotch is one of the most common disease of apples in organic orchards in many countries. Results of molecular studies performed in USA indicated approximately 30 different fungi species associated with this disease. Fungi species causing sooty blotch in Northern, Central and Eastern Poland were identified on the basis of morphology and nucleotide sequence of the rDNA internal transcribed spacer...
The influence of four cytokinins: BA (4.4, 11.1, 22.2 μmol·dm⁻³), kinetin (4.7, 11.6, 23.3 μmol·dm⁻³), 2iP (4.9, 12.3, 24.6 μmol·dm⁻³), TDZ (4.5, 11.4, 22.7 μmol·dm⁻³) on shoot multiplication of Rheum rhaponticum ‘Karpow Lipskiego’ on Murashige and Skoog (MS) medium was studied. The shoots used in the experiment were obtained from aseptically grown shoot clusters. Rooted shoots (except treatment with...
Jod nie jest jednak składnikiem pokarmowym roślin. Jego uboczny wpływ na gospodarkę mineralną roślin nie został dobrze udokumentowany. Celem badań było określenie oddziaływania jodu oraz doglebowej aplikacji sacharozy na zawartość metali ciężkich i pierwiastków śladowych w szpinaku. W latach 2009–2010 przeprowadzono doświadczenie wazonowe z uprawą szpinaku Spinacia oleracea L. ‘Olbrzym zimowy’ na...
Growing herbal plants is aimed at obtaining high yield of raw material with high contents of biologically active substances, as well as other important compounds, also of nutritional character. In the years 2008–2010 (February – May) studies were conducted on the relationship between cultivar, nitrogen dose (NH4NO3), potassium dose (K2SO4), and some components of chemical composition of basil herb...
The mycobiota composition of plant phyllosphere depends on atmospheric factors as well as on the physiological properties of plant. In the recent years the infections of the eastern purple coneflower by Sclerotinia sclerotiorum, Botrytis cinerea, Fusarium oxysporum, Verticillium dahliae and by Erysiphe cichoracearum have been observed. The development of these pathogens is dependent on the species...
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