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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...
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 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...
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