Growth and total photosynthetic pigment responses of five accessions of Zea mays L. grown under waterlogging stress

Authors

  • Okon Godwin Okon Department of Botany, Akwa Ibom State University, Nigeria
  • Ekomobong Etinam Akpan Department of Botany, Akwa Ibom State University, Nigeria
  • Augustine Effiong Archibong Department of Botany, Akwa Ibom State University, Nigeria
  • Imikan Anyieokpon Nyong Department of Botany, Akwa Ibom State University, Nigeria

DOI:

https://doi.org/10.25081/jpsp.2023.v9.8659

Keywords:

Adventitious roots system, Photosynthetic pigment, Waterlogging, Zea mays

Abstract

The effect of waterlogging on the growth of five accessions of Zea mays was investigated. The growth parameters, evaluated from 2 WAP (Weeks after planting) included: leaf area, number of nodes, total photosynthetic pigment (TPP) as well as plant height. Results revealed that TZM-4 (7.00±0.296 cm) showed a higher growth under waterlogging stress as observed in shoot length, whilst TZM-5 recorded the lowest growth with (4.83±0.17 cm). Results for the estimation of the total photosynthetic pigment; TZM-4 was observed to have retained a high value (28.23±8.63 mg/kg), while TZM-1 showed the lowest value (15.33±3.23 mg/kg) after 4WAP. For the number of nodes, TZM-1 recorded a high value (4.67±4.67), while TZM-5 had the lowest value (2.33±1.20). By observation, TZM-5 showed a better overall waterlogging tolerance which could be attributed to the development of adventitious roots which aided aeration. Hence, waterlogging stress had negative effects on the growth and TPP of Z. mays. However, TZM-5 showed promising advantage under waterlogging condition while TZM-3 showed poor tolerance in growth rate which makes it a non-favorable choice for planting in waterlogged soil. Thus, this research provides a promising insight for breeders and plant scientists to capitalize on for the breeding of this very important economic crop for sustainable agriculture and food security in a world threatened by climate change.

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Published

02-12-2023

How to Cite

Okon, O. G., E. E. Akpan, A. E. Archibong, and I. A. Nyong. “Growth and Total Photosynthetic Pigment Responses of Five Accessions of Zea Mays L. Grown under Waterlogging Stress”. Journal of Plant Stress Physiology, vol. 9, Dec. 2023, pp. 40-43, doi:10.25081/jpsp.2023.v9.8659.

Issue

Volume 9, 2023

Section

Articles

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