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The studies were conducted in 2008 - 2009 in the Pomological Orchard of the Research Institute of Pomology and Floriculture in Skierniewice, Poland. The experiment consisted of three factors: A – planting time of frigo plants (15 June, 25 June and 5 July), B – type of frigo plants (A – crown diameter 10 - 15 mm, A+ – crown diameter above 15 mm, raised bed plants – crown diameter above 18 mm and 2...
The main purpo se of the experiment was to investigate the influence of cultivation conditions of mother and daughter plants on the number and size of strawberry plug plants. The experiment was conducted inside and outside of a high plastic tunnel. Cold stored mother pla nts of ‘Dukat’ and ‘Camarosa’ were planted in containers containing four types of substrate: peat substrate + sand, peat substrate...
The experiment was conducted at the Experimental Fruit - Growing Station in Samotwór, belonging to the Wroc ł aw University of Environmental and Life Sciences. The aim of the study was to determine the extent of damage to the shoots and flower buds of peach trees after the winter of 2009/2010, when the temperature fell to - 24 to - 26 o C. Under evaluation were six - year - old trees of the cultivars...
The aim of this work was to determine the cause of leaf spotting of Crassula multicava and potential methods of their control. The leaves of succulent Crassula multicava growing in greenhouse conditions showed disease symptoms, yellow and gradually browning spots, and the disease was caused by Pestalotiopsis guepinii . The strobilurin fungicides, azoxystrobin (Amistar 250 SC), kresoxim - methyl (Discus...
The experiment was conducted during two seasons (2002, 2003) t o investigate water consumption by three strawberry cultivars (‘Elsanta’, ‘Elkat’, ‘Salut’) grown under greenhouse conditions. Strawberry plants were grown in pots filled with a peat substrate. The pots were placed on top of glass containers filled with a nutrient solution. Each pot was connected with the container below by two pieces...
On the basis of the measurements recorded by seven automatic meteorological stations, evapotranspirati on (ET 0 ) was calculated according to the formula devised by Hargreaves and Hargreaves, modified by Droogers and Allen (H and HDA) and Grabarczyk (G). The obtained results were compared with the reference formula recommended by FAO, which adopted the Penman - Monteith formula (PM). A high correlation...
The studies were conducted at the Experimental Fruit - Growing Station of the Wroclaw University of Environmental and Life Sciences in Samotwór, with the aim of comparing several mutants of the cultivars ‘Jonagold’ and ‘Gala’. Two - year - old trees of ‘Galaxy’, ‘Mundial Gala’, ‘Rubinstar’, ‘Novajo’ and also of the clone ‘Jonagold E2/20’ grafted on M.9 rootstocks were planted in the spring of 2005,...
Blackberry (Rubus fruticosus L.) breeding has been carried out at the Experimental Fruit - Growing Station of the Research Institute of Pomology and Floriculture in Brzezna since 1979. Approximately 40 - 50 combinations of crosses are carried out annually; these produce in the region of 3000 - 4000 seedlings in total. The basic aim of the programme is to provide frost resistant cultivars with high...
Monitoring the quality of water for a long period of time is the only way to objectively assess the influence of human activity on the natural environment. Evaluation of water quality is not only of cognitive value but also of economic value, e.g. for industrial or agricultural purposes. Both environmental and human factors may significantly change the quality parameters of river waters. The aim of...
The aim of the present work was to investigate the role and attributes of the development of fruit and vegetable production in the food sector of the Polish economy in the period 1980 – 2008. In this publication the author presents the role of Polish fruit and vegetable production in the context of the world production of fruit and vegetables, the significance of Polish fruit and vegetable exports...
In the springtime of 2005, 16 blackberry cultivars were planted in the Experimental Pomological Orchard in Skierniewice. They included the new blackberry cultivars: ‘Black Butte’, ‘Boysenberry’, ‘Chester’, ‘Helen’, ‘Karaka Black’, ‘Kotata’, ‘Loganberry’, ‘Loch Ness’, ‘Loch Tay’, ‘Oregon’, ‘Silvan’, ‘Tayberry’, Tayberry Buckingham’ and ‘Tummel’. The new cultivars were compared with two standard blackberry...
Commercially produced green waste compost from urban areas was evaluated for its suitability to replace 10 or 20% (v/v) of peat substrate in the cultivation of ornamental shrubs. For mineral fertilization, two doses of Osmocote Standard 5 - 6M controlled release fertilizer (3 g and 1.5 g dm – 3 ) were used. The plant species tested were Physocarpus opulifolius L. ‘Diabolo’, Potentilla fruticosa L...
The main objective of the research was to evaluate the ability to set fruit in new apricot clones developed at the Research Institute of Pomology and Floricultur e in Skierniewice, Poland, pollinated with different apricot cultivars. The experiments were conducted in the field of the Experimental Orchard in D ą browice (2008 and 2010) and in a high plastic tunnel in the Pomological Orchard in Skierniewice...
New sour - cherry cultivars of German breeding were assessed for their usefulness for cultivation in the climatic conditions of central Poland. The study was conducted in the Experimental Or chard in D ą browice near Skierniewice over the years 2001 - 2009. The experimental material consisted of trees of the cultivars: ‘Morina’, ‘Safir’, ‘Topas’, ‘Karneol’, ‘Korund’ and ‘Vowi’, which were compared...
The article presents the diversification of financial liquidity exemplified by selected fruit farms. The level and structure of cash flow directions is presented for the years 2006 - 2008. The balance of cash flows from operating activity on the farms involved in the study was positive in all the years examined.
The aim of the study was to examine the effect of an emulsion containing copper orthosilicate on the form ation and growth of the root system of strawberry plug plants (cv. Elsanta). The emulsion reduced overgrowth and spiralling of the roots in pots. Plug plants grown in emulsion - treated pots had better root distribution and produced more branching and more l ateral roots compared with the control...
Changes in the levels of starch, sucrose and fructose in the roots of strawberry tray plants (cv. ‘Elsanta’) as affected by the duration of the gro wing period (8, 12, 18 or 20 weeks) were examined. Measurements of air temperature during the growing period were used to calculate cumulative chilling hours (<7 ̊ C). The largest accumulation of starch in the roots was found in the plants grown for...
The aim of the study was to explain how the prices of fresh cut roses are determined by some non - economic factors. Prices of rose flowers were recorded every 7 - 10 days in 2009 from three wholesale markets: in Poznań, Wrocław and Tychy, then they were categorized according to stalk longevity, flower colour, origin, flower storage life and wholesale market location. The results showed that the highest...
In field trials in 2000 - 2007 in central Poland some soil cultivation practices were evaluated fro m the point of view of fruit yield and vegetative growth of highbush blueberry cv. ‘Bluecrop’. Plots were established with 5 rows with the following treatments in one row: (1) No treatment, (2) Soil pH adjusted to 4.5, (3) Incorporation of sawdust into the soil along the row, (4) Incorporation of sawdust...
As a result of low prices for sour cherries and low profitability of sour cherry production in Poland, the total area occupied by sour cherry orchards had decreased from about 40 thousand ha in 2000 to 32 thousand ha in 2010. The objective of this research was to evaluate the production co sts and profitability of sour cherry production and to identify the factors influencing profitability. The research...
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