Wyniki wyszukiwania

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Influence of chlormequat and flurprimidol application on vegetative growth on some ornamental container plants

100%

Babelewski P., Pancerz M.

Acta Agrophysica

|

2014

|

tom 21

|

nr 3

The aim of this research was to determine the application effect of chlormequat (at concentrations of 460 mg dm- 3, 690 mg dm- 3, 920 mg dm- 3) and flurprimidol (at concentrations of 7.5 mg dm- 3; 15 mg dm- 3; 22.5 mg dm-3) on the vegetative growth, determining the quality of plants in blooming time, of Torenia fournieri 'Blue', Fuchsia hybrida in varieties 'Balkonkönigin’ and 'Eden Rock', Calibrachoa ×hybrida 'Cherry', Lobelia erinus 'Bavaria' and Petunia ×hybrida 'Shihi Purple'. Plants were sprayed twice – first treatment after 10 days after planting and second 25 days after first spraying. The influence of growth retardants was dependent on the plant species and variety as well as on the concentration of the preparation. The use of preparation type and its con-centration is dependent on the results we want to achieve. For obtaining the shortest main shoots with the largest number of side shoots, indicative of compacted habit, in the case of Torenia plants flurprimidol was applied at concentration 7.5 mg dm-3, and in the case of Calibrachoa - flurprimidol at concentration of 22.5 mg dm-3.

2

Trees of taxodiaceae family cultivated on different stands in Wrocław

81%

Babelewski P., Pancerz M., Krezel J.

Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica

|

2017

|

tom 42

|

nr 2(334)

3

Struktura gleb w wybranych lasach miejskich Wrocławia

81%

Waclawowicz R., Babelewski P., Pancerz M., Tendziagolska E.

Sylwan

|

2017

|

tom 161

|

nr 07

The objective of the research was to assess the soil structure parameters (the index of cloddiness, of pulverization, of soil structure and the mean weighted diameter of soil aggregates – MWDa), as well as the selected chemical soil properties (pH, the content of organic carbon, total nitrogen and available potassium and phosphorus) in the three urban forests in Wrocław (SW Poland) depending on the occurrence of tree species (Quercus robur, Fagus sylvatica, Carpinus betulus). Soil samples were collected under the crown of each tested tree taxons, from three different sites, in three replications, separately in every forest. The soil was taken from two layers: 0−20 cm and 20−40 cm. The structure and weight of mechanically solid soil aggregates were determined using dry separation method. The content of total nitrogen was determined with Kjeldahl method, while phosphorus and potassium – with Egner−Riehm method. Organic carbon was determined with the use of elementary carbon analyser Behr C−50 IRF. The pH was determined by potentiometric method in 1M solution of KCl. The results were statistically analysed using the ANOVA. The correlation coefficient between the mean weighted diameter of soil aggregates and the content of organic carbon in the soil was calculated. The tree species occurring in the urban forests of Wrocław affected the soil structure parameters as well as changed the chemical properties of the soil. In both Mokrzański and Rędziński Forests the significantly higher index of soil cloddiness was observed under hornbeam crowns than in the oak and beech surroundings. In the Osobowicki Forest the highest index of cloddiness was determined on the soil with the oak. In general, higher values of index of soil structure and the mean weighted diameter of soil aggregates were noticed for the hornbeam sites than the oak and the beech ones. There was a significant positive correlation between the MWDa and the content of soil organic matter (r=0.711, Y=0.4569·x+1.6523). The differences in the content of organic carbon depending on tree species were observed in the Rędziński Forest, while in content of total nitrogen also in the Mokrzański Forest. The highest content of organic carbon and nitrogen was noticed in the soil under the hornbeam. The species of trees affected the content of phosphorus and potassium in the soil, but there was no unambiguous direction of changes.

4

Influence of different cultivation factors on biometric features of North American hackberry (Celtis occidentalis L.)

71%

Babelewski P., Pancerz M., Debicz R., Wroblewska K., Waclawowicz R.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2017

|

tom 16

|

nr 1

North American hackberry as a tree with resistance to Dutch elm diseases, pollutions and urban conditions is predisposed to becoming one of the common tree species for urban areas. Therefore, it is necessary to develop methods for nursery production of this species. The aim of this research was to determine the effect of fertilization and different methods of cultivation in rows with simultaneous use of geocomposite on the growth of North American hackberry in nursery production. Mechanical fallow in rows ha the most preferably influence, while living mulch with perennial ryegrass had rather negative impact on tested biometric features of North American hackberry. There was found a positive correlation between biometric features and foliar N content, as well as negative correlation between biometric features and soil salinity.

Ograniczanie wyników

1 Acta Agrophysica

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica

1 Sylwan

4 Babelewski P.

4 Pancerz M.

2 Waclawowicz R.

1 Debicz R.

1 Krezel J.

1 Tendziagolska E.

1 Wroblewska K.

3 2017

1 2014

Influence of chlormequat and flurprimidol application on vegetative growth on some ornamental container plants

Trees of taxodiaceae family cultivated on different stands in Wrocław

Struktura gleb w wybranych lasach miejskich Wrocławia

Influence of different cultivation factors on biometric features of North American hackberry (Celtis occidentalis L.)