The aim of the research was the estimation of growth and yield of 'Ligol'cv. apple trees depending on rootstock and polymeric sorbent called geo-composite SAP . The experiment was conducted in years 2006-2010 in Research Station be-longing to department of Horticulture at Wroclaw University of Environmental and Life Sciences. Two-year-old trees of ‘Ligol' cultivar were planted in the spring 2006 in 3, 5 x 1, 0 m spacing, on three rootstocks: M.9, P 60 and M26. The second factor of the experiment was application of geo-composite SAP in the form of agrożel placed inside geo-textile as strip with the width of 10 and length adjusted to a plot with trees The wet geo-composite, was put on the bottom of holes before the trees planting. The experiment was established according with randomized split-block me-thod, in three replication with tree trees on each plot. The trees were fruiting as early in the year of planting. Fruit yield was from particular tree determined by separate weighing. The weight of one fruit was estimated on the basis of the yield from one tree and number of picked up fruit. Tree vigour assessed taking into ac-count the increase in cross sectional area of the trunk, ...
The response of two strawberry cultivars (‘Elsanta', ‘Sonata') to drought was examined by evaluating the yield and selected morphological and physiological parameters. Plants were subjected to two different water regimes: optimal irrigation (control), and reduced irrigation (water potential in the growing medium was maintained at a level -30 kPa, stress treatment). Genotypes differed in their response to water deficiency. Cultivar ‘Sonata' presented high rates of net photosynthesis with high value of water use efficiency (a ratio of photosynthetic rate to transpiration rate) under water shortage conditions. Drought stress reduced leaf area in all cultivars, but root development was retarded only in ‘Elsanta'. Under water deficiency conditions reduction of yield was higher for ‘Elsanta'. ‘Sonata' appeared to be more drought resistant which was reflected by both growth and yield parameters.
...
The response of three strawberry cultivars (‘Elsanta', ‘Elkat', ‘Grandaro-sa') to drought was examined by evaluating the yield and selected morphological and physiological parameters. Plants were subjected to two different water regimes: optimal irrigation (control), and reduced irrigation (water potential in the growing medium was maintained at a level -30 kPa, stress treatment). Genotypes differed in their response to water deficiency. Under water shortage conditions, the rate of CO2 assimilation and efficiency of photosynthetic apparatus (expressed by chlorophyll fluorescence parameters) were the highest in ‘Elsanta'. On the other hand, the severe inhibition of photosynthesis was observed in ‘Elkat', which corresponded to the reduced biomass production. Taking all data into consideration it was concluded that cultivar ‘Elsanta' appeared to be more drought resistant which was reflected by enhanced physiological and yield parameters. ...
The aim of the research conducted in the conditions of Lower Silesia in the years 2012-2016 was to evaluate the growth and yielding of young peach trees cultivated in ridges with drip irrigation. The experiment concerned the flat-fruit peach trees, cultivar Saturn on the Manchurian peach tree seedling, planted in the spring of 2012 in the spacing 4.0 x 1.5 m.In each year the shortage of rainfall was observed, as compared to the years 1997-2000. During the vegetation period, the deficiencies were from -7.3 mm up to - 221.7 mm. The insufficient amount of rainfall was accompanied by the rise of the mean air temperature in the vegetation period by 0.5 - 1.7oC. In the orchard, the drip irrigation in the form of stippling tape T-Tape TSX515-50-380 was applied, with the emitters every 50 cm and the expenditure of 3.8 l per metre in 1 hour. The humidity measurements were being taken from the beginning of May until the end of July with the use of Watermark probes, testing the sucking power of soil at the depth of 20 cm. The irrigation started when the water potential of soil was 30 kPa.During the 4 years, the total yield per hectare ...
An innovative technology of superabsorbent application in a form of agrotextile filled with polymer, called geocomposite, is a solution that allows preserving the beneficial effect of using superabsorbents with simultaneous reduction of their negative influence on soil environment. Research was carried out in 2012-2014 on one year old cuttings of Rosa 'White Meidiland' and Berberis thunbergii 'Green Carpet' in unheated foil tunnel at the Research Station belonging to the Department of Horticulture at Wrocław University of Environmental and Life Sciences. First factor was the use of geocomposite, while the second was fertilization with full (3 g) and half (1.5 g) dose of Osmocote Plus 3-4M and 3 g of YaraMila Complex fertilizer. The aim of this study was to assess the influence of geocomposite application with the use of fertilizers on selected biometric features and fresh weight of plants. Geocomposite had the positive influence on tested shoots and roots biometric features of Rosa ‘White Meidiland' and Berberis thunbergii 'Green Carpet', on the fresh weight of roots and total of both species, as well as on their root:shoot ratio. In both species there was a tendency to obtain the highest values with 1.5 g Osmocote fertilization. ...
Biochar can get from every biomass material and carbonization of the total mass of organisms. Determining the most suitable dose of the biochar to increase nutrient concentrations of pepper and also determine whether used with chemical fertilizers or not was the aim of the study. In this study, biochar was used either with or without chemical fertilizers. Biochar was applied as 0, 10, 20, 40 t·ha-1 into two liter pots containing two kilogram of soil. N-P-K was applied as 100 mg·kg-1 N, 100mg kg-1 P and 125 mg·kg-1 K respectively. Leaf N, P, K, Fe, Mn, Cu, and Zn concentrations, soil pH, EC and organic material and plant dry weight were determined in the study. As a result, while biochar combined with chemical fertilizers, the soil pH and organic material increased, soil EC decreased, plant N, P, K, Fe, Mn and dry weight increased. Soil P and K concentrations also increased with the applications. From the results of the study, biochar could be used with chemical fertilizers to increase yield and concentrations of nutrients of pepper. ...
