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Effect of flowering stage and storage conditions on pollen quality of six male date palm genotypes

Karim, Kadri and Awad, Mohamed A. and Manar, Abdelhafidh and Monia, Jemni and Karim, Aounallah and Elsafy, Mohammed (2022). Effect of flowering stage and storage conditions on pollen quality of six male date palm genotypes. Saudi Journal of Biological Sciences. 29 :4 , 2564-2572
[Research article]

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Abstract

Availability of efficient male genotypes is critical for successful artificial pollination and regular bearing of female date palms. The effect of flowering stage and storage conditions on pollen quality of six male date palm genotypes encoded 'ABD1', 'P4', 'P3', 'P8', 'P7' and 'P13'were evaluated. Pollen collected from spathes developed at the middle of flowering stage exhibited the best viability (90%) and germinability (85%) compared to other stages. Pollen viability was greater than 90%, except for 'P8' that exhibited 80%, while, germinability greatly varied among the genotypes. Pollen quality decreased during 4 months of storage upon genotype and temperature, with a minimum reduction at -30 degrees C followed by 4 degrees C. Heat shock exposure (33 +/- 2 degrees C) following storage revealed that pollen stored at -30 degrees C or 4 degrees C should be used for pollination on the same day of take out to avoid dramatic quality loss. The 'ABD1', an early flowering genotype, proved highest pollen quality both at fresh stage and after storage. While, the 'P3', a late flowering genotype, retained its pollen quality during storage. However, the 'P13' genotype exhibited excellent pollen quality when fresh, but greatly loses germinability during storage. (C) 2021 The Author(s). Published by Elsevier B.V. on behalf of King Saud University.

Authors/Creators:Karim, Kadri and Awad, Mohamed A. and Manar, Abdelhafidh and Monia, Jemni and Karim, Aounallah and Elsafy, Mohammed
Title:Effect of flowering stage and storage conditions on pollen quality of six male date palm genotypes
Series Name/Journal:Saudi Journal of Biological Sciences
Year of publishing :2022
Volume:29
Number:4
Page range:2564-2572
Number of Pages:9
Publisher:ELSEVIER
ISSN:1319-562X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding
Keywords:Phoenix dactylifera L., Pollination, Male inflorescence, Pollen quality, Pollen storage
URN:NBN:urn:nbn:se:slu:epsilon-p-117428
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-117428
Additional ID:
Type of IDID
DOI10.1016/j.sjbs.2021.12.038
Web of Science (WoS)000798983400068
ID Code:28409
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:22 Jun 2022 15:25
Metadata Last Modified:22 Jun 2022 15:31

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