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In vitro assessment of elevated soil iron on germinability and germination characteristics of Sorghum bicolor (L.) Moench after chemo-priming

View ORCID ProfileBeckley Ikhajiagbe, Owalum Linus Onawo
doi: https://doi.org/10.1101/2021.11.22.469542
Beckley Ikhajiagbe
Department of Plant Biology and Biotechnology, University of Benin, Benin City
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Owalum Linus Onawo
Department of Plant Biology and Biotechnology, University of Benin, Benin City
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ABSTRACT

The commercial importance of Sorghum (Sorghum bicolor (L.) Moench) has attracted breeders to increase its seed yield using various breeding approach. Adverse soil factors however hampered progress made in crop development, especially micronutrient toxicity. Plant growth stimulators (PGS) have a significant role in enhancing growth parameters in Sorghum. In the present study, seeds were primed in 50, 150, and 250 ppm of each of gibberellic acid, indole acetic acid, and ascorbic acid respectively for 1 hr before sowing in Petri dishesmoistened with 10 ml of the iron-rich solution obtained as filtrate from a mix of distilled water and ferruginous soil (1:1 v/w). Results showed that although germination percentage in ferruginous medium was significantly reduced, there was enhancement in germination percentagewhen the seeds were primed in gibberellic acid (GA). Germinability in the iron-rich medium was 31.2 hrs; this was significantly reduced to 19.6 to 21.1hrs when these seeds were primed with growth stimulators.Although, shoot length was significantly reduced in plants exposed to ferruginous solutions, the root parameters were however enhanced. They were no significant changes in the total number of root branches regardless of ferrugenic status or use of growth stimulating agents. The utilization of growth stimulators as priming agents is called for to reduce stress impacts imposed by ferruginous soils during germination.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted November 22, 2021.
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In vitro assessment of elevated soil iron on germinability and germination characteristics of Sorghum bicolor (L.) Moench after chemo-priming
Beckley Ikhajiagbe, Owalum Linus Onawo
bioRxiv 2021.11.22.469542; doi: https://doi.org/10.1101/2021.11.22.469542
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In vitro assessment of elevated soil iron on germinability and germination characteristics of Sorghum bicolor (L.) Moench after chemo-priming
Beckley Ikhajiagbe, Owalum Linus Onawo
bioRxiv 2021.11.22.469542; doi: https://doi.org/10.1101/2021.11.22.469542

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