Document Type : Original Article
Authors
1
Faculty of Technology and Development, Zagazig University
2
Plant Protection Res. Institute, Agric. Research Centre, Dokki, Giza, 12618 Egypt
3
Apiculture Department, Plant Protection Res. Ins.
Abstract
The monthly average weights of pollen grains collected at three trap types along (Mar. 2018 / Feb. 2020) were conducted at apiaries of Carniolan hybrids of Elsharkia Governorate: Diarb Nigm , Abokabeer and Kafr Sakar. Statistical analysis of the 1st year revealed that there were no significant differences in the weights of pollen grains by 1st and 2nd type of traps , where it was 365.8, 360.8 , 357.5 g /trap / colony, for 1st type of traps at Diarb Nigm , Abokabeer and Kafr Sakar, respectively, and it was 337.4, 336.2 , 335.4 g , for 2nd type of traps , respectively , while there were significant differences in the weights of pollen grains between 1st & 2nd and 3rd type, where it was 258.1, 256.0 , 255.0 g /trap / colony, for the 3rd type of traps , respectively. Statistical analysis the 2nd year revealed that there were no significant differences in the weights of pollen by 1st and 2nd type of traps , where it was 364.1, 360.0 , 355.0 g /trap / colony, for 1st type of traps at the three sites, respectively, and it was 337.9, 335.8 , 334.5 g, for 2nd traps, respectively , while there were significant differences in the weights of pollen grains between 1st & 2nd and 3rd type of traps , where it was 257.1, 256.2 , 254.2 g , for the 3rd type of traps , respectively.
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