scholarly journals Assessment of cross compatibility of pear (Pyrus communis L.) cultivars on the basis of pollen tube observations and analysis of the S-RNase gene

2013 ◽  
Vol 66 (2) ◽  
pp. 29-34
Author(s):  
Wojciech Antkowiak ◽  
Andrzej Wojciechowski ◽  
Łukasz Wolko ◽  
Grzegorz Łysiak
Keyword(s):  
Pollen Tube ◽  
Pyrus Communis ◽  
Diallel Crosses ◽  
Laboratory Conditions ◽  
Cross Compatibility ◽  
Pyrus Communis L

Diallel crosses of <em>P. communis</em> cultivars: 'Amfora', 'Radana', 'Red Williams', 'Carola', 'Conference', and 'Dicolor', were conducted under orchard and laboratory conditions at temperatures of 20°C and 28°C . Based on pollen tube observations and after the determination of the S genotypes, the usefulness of these pear cultivars as cross pollinators was evaluated as good and very good.

Determination of the role of HrpN effector protein, as a key factor in course of interaction between Erwinia amylovora with chloroplasts of pear (Pyrus communis L.)

2020 ◽  
Vol 102 (4) ◽  
pp. 1041-1050
Author(s):  
Azam Taheri Shahrestani ◽  
Hamid Abdollahi ◽  
Bagher Yakhchali ◽  
Rahim Mehrabi ◽  
Omid Eini Gandomani
Keyword(s):  
Erwinia Amylovora ◽  
Pyrus Communis ◽  
Effector Protein ◽  
Pyrus Communis L ◽  
Key Factor

Determination of cores electrification during the flow in the modified Wurster apparatus

2016 ◽  
Vol 1 (20) ◽  
pp. 5-15
Author(s):  
Wojciech Ludwig ◽  
Tadeusz Mączka
Keyword(s):  
Measurement System ◽  
Charge Accumulation ◽  
Laboratory Conditions ◽  
Pharmaceutical Materials

The purpose of this paper was presentation of the value of cores electrification during their flow in the modified Wurster apparatus, applied for dry encapsulation of pharmaceutical materials. Previous works of the authors dealt with vulnerability of the particles of different diameter, produced by SYNTAPHARM (Cellets 1000, 700 and 100) on electrification in laboratory conditions. The presented work gives the results of examination on particles electrification in real conditions of their stable circulation in a column. The measurement system, that was applied, allowed determination of electrification potential and electrification current. Those quantities, which are the measures of charge accumulation on cores were determined for several particles (Cellets 1000, 700 and 500) with the different humidity, for different mass of the bed and spouting gas velocities.

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