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Pollen Count Dynamics in Rapeseed Stamens in Early Spring Cover

Pollen Count Dynamics in Rapeseed Stamens in Early Spring

Journal of Apicultural Science
Volume 67 (2023): Issue 2 (December 2023)
By: Zhijun Wei,  Ran Liu,  Guiling Ding,  Yusuo Jiang and  Jiaxing Huang  
Open Access
|Dec 2023

Figures & Tables

Fig. 1.

The number of pollen grains in 5 μl of a suspension solution pipetted from a 1-cm depth below the liquid surface was counted by hemocytometry after different standing times in four suspension solutions (A. 10% sucrose + 0.05% agar solution, B. 20% sodium hexametaphosphate solution, C. 5% sucrose + 0.1% agar solution and D. distilled water). Data are presented as the means ± SEs.
The number of pollen grains in 5 μl of a suspension solution pipetted from a 1-cm depth below the liquid surface was counted by hemocytometry after different standing times in four suspension solutions (A. 10% sucrose + 0.05% agar solution, B. 20% sodium hexametaphosphate solution, C. 5% sucrose + 0.1% agar solution and D. distilled water). Data are presented as the means ± SEs.

Fig. 2.

The number of pollen grains in 5 μl of a suspension solution pipetted from different depths below the liquid surface was counted by hemocytometry in four suspension solutions (A. 10% sucrose + 0.05% agar solution, B. 20% sodium hexametaphosphate solution, C. 5% sucrose + 0.1% agar solution and D. distilled water). Data are presented as the means ± SEs.
The number of pollen grains in 5 μl of a suspension solution pipetted from different depths below the liquid surface was counted by hemocytometry in four suspension solutions (A. 10% sucrose + 0.05% agar solution, B. 20% sodium hexametaphosphate solution, C. 5% sucrose + 0.1% agar solution and D. distilled water). Data are presented as the means ± SEs.

Fig. 3.

The linear relationship between the number of pollen grains in 5 μl of a 5% sucrose + 0.1% agar suspension solution assessed by hemocytometry under microscopy and the absorbance measured by light spectroscopy at a wavelength of 425 nm.
The linear relationship between the number of pollen grains in 5 μl of a 5% sucrose + 0.1% agar suspension solution assessed by hemocytometry under microscopy and the absorbance measured by light spectroscopy at a wavelength of 425 nm.

Fig. 4.

Pollen count per anther at different flowering stages and on stamens of different lengths among five oilseed rape cultivars. Data are presented as the means ± SEs. Identical lowercase letters indicate no significant difference (p>0.05); different lowercase letters indicate a significant difference (p<0.05).
Pollen count per anther at different flowering stages and on stamens of different lengths among five oilseed rape cultivars. Data are presented as the means ± SEs. Identical lowercase letters indicate no significant difference (p>0.05); different lowercase letters indicate a significant difference (p<0.05).

Number of pollen grains per flower in five oilseed rape cultivars

CultivarInitial flowering stageFull bloom stageFinal flowering stage
AYW180524.23 ± 12083.10c252715.64 ± 7947.12bc136014.13 ± 5573.03c
HHY998181954.12 ± 14039.44c242706.37 ± 9721.72c147306.64 ± 7737.18bc
ND21276730.56 ± 12619.33a270571.01 ± 8632.42b215685.00 ± 9261.30a
DHY217958.17 ± 13535.64b314539.30 ± 9816.28a168168.46 ± 8056.94b
HYXL175464.60 ± 9152.36c270131.04 ± 7004.21b160029.05 ± 6928.05bc
P value0.000.000.00
DOI: https://doi.org/10.2478/jas-2023-0008 | Journal eISSN: 2299-4831 | Journal ISSN: 1643-4439
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Language: English
Page range: 103 - 114
Submitted on: Apr 17, 2023
Accepted on: Oct 9, 2023
Published on: Dec 22, 2023
Published by: Research Institute of Horticulture
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
Keywords:
oilseed rape,
pollen,
pollen counting,
pollen deposition
Related subjects:
Life sciences,
Zoology,
Life sciences, other

© 2023 Zhijun Wei, Ran Liu, Guiling Ding, Yusuo Jiang, Jiaxing Huang, published by Research Institute of Horticulture
This work is licensed under the Creative Commons Attribution 4.0 License.

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