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2020 Vol.38, Issue 1

Research Article

Characterization of Pollen Development in Staminate Kiwifruit (Actinidia sp.) Cultivars
Eun Ui Oh1
,
Seung Yong Jeong2
,
Hyeong Ho Kang1
,
Kwan Jeong Song13*
1Faculty of Bioscience and Industry, SARI, Jeju National University
2Jeju Special Self-Governing Province Agricultural Research and Extension Services
3Research Institute for Subtropical Agriculture and Biotechnology, Jeju National University
* Corresponding Author
28 February 2020. pp. 1-8
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Abstract

This study was conducted to determine the timing of flower harvest for pollen collection and preparation in kiwifruit. Here the pollen development of two staminate cultivars, ‘Bohwa’ and ‘Chieftain’, which are the major pollinizers used in the region of Jeju in Korea, was investigated. These two staminate cultivars showed a similar tendency in histological pollen development, except for the time of anther dehiscence. The highest pollen quantity was obtained at the 4th developmental stage; thereafter, the quantity of pollen decreased by 23% and 38% at the 5th developmental stage in ‘Bohwa’ and ‘Chieftain’, respectively. The pollen viability of ‘Bohwa’ was slightly higher than that of ‘Chieftain’ in both 1% iodine potassium iodide and fluorescein diacetate staining with a small increase according to progression in flower development from the 1st to the 5th stage. Pollen germination also increased as flower development advanced, and higher pollen germination of more than 60% occurred in the 4th developmental stage of both staminate cultivars. The results indicate that the appropriate timing for pollen collection might be the 4th developmental stage (full balloon stage) in ‘Bohwa’ and ‘Chieftain’ according to the amount of pollen production, viability, and germination.

Keywords
histological analysis
pollen collection
pollen germination
pollen viability
pollinizer

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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :원예과학기술지
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 38
  • No :1
  • Pages :1-8
  • Received Date : 2019-09-30
  • Revised Date : 2019-11-21
  • Accepted Date : 2019-12-23
  • DOI :https://doi.org/10.7235/HORT.20200001
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