American Journal of Plant Sciences

Volume 8, Issue 5 (April 2017)

ISSN Print: 2158-2742   ISSN Online: 2158-2750

Google-based Impact Factor: 1.57  Citations  

Allelochemicals as Growth Stimulators for Drought Stressed Maize

HTML  XML Download Download as PDF (Size: 1410KB)  PP. 985-997  
DOI: 10.4236/ajps.2017.85065    1,593 Downloads   2,984 Views  Citations

ABSTRACT

Sorgaab, an aqueous extract of sorghum leaves was applied to probe the modulation in growth and physiological attributes of maize under drought in lab and greenhouse studies. Sorgaab soaked seeds (10 dilutions) were germinated to assess drought tolerance at germination and seedling growth stages. More concentrated Sorgaab solutions (2 mL·L-1) were damaging, while lower concentration in the range of 0.75 to 1.5 mL·L-1 improved the root and shoot growth of maize under drought. Applied drought stress decreased chlorophyll b greater than chlorophyll a that improved the chl a/b ratio. Application of Sorgaab also improved the internal CO2 assimilation, which increased the net photosynthesis and A/E ratio of drought affected plants. Soluble phenolics and anthocyanins were also more increased in plant receiving Sorgaab under drought than control. Although greater concentrations of phenolic acids inhibit the uptake of ions, but its lower concentrations stimulate the uptake of K+, Ca2+, NO3, PO4. In conclusion, although high concentrations of Sorgaab reduced the growth of plants, it might alleviate the adverse effects of drought, if applied at the low concentration. Dilute concentrations of Sorgaab can be utilized as a natural source for improving drought resistance in maize both at germination and later growth stages.

Share and Cite:

Maqbool, N. and Sadiq, R. (2017) Allelochemicals as Growth Stimulators for Drought Stressed Maize. American Journal of Plant Sciences, 8, 985-997. doi: 10.4236/ajps.2017.85065.

Cited by

[1] Unlocking the Potential of Agrifood Waste for Sustainable Innovation in Agriculture
Recycling, 2024
[2] Genome-wide profiling of histone (H3) lysine 4 (K4) tri-methylation (me3) under drought, heat, and combined stresses in switchgrass
BMC genomics, 2024
[3] Mitigating the Toxic Effects of Salinity in Wheat through Exogenous Application of Moringa Leaf Extract.
Journal of Ecological …, 2024
[4] The Opportunity of Valorizing Agricultural Waste, Through Its Conversion into Biostimulants, Biofertilizers, and Biopolymers
2021
[5] Effect of super absorbent polymer and bio fertilization on Maize productivity and soil fertility under drought stress conditions
Egyptian Journal of Soil …, 2020
[6] Foliar spray of moringa leaf extract, sorgaab, hydrogen peroxide and ascorbic acid improve leaf physiological and seed quality traits of quinoa (Chenopodium quinoa …
2020
[7] Sorghum Allelopathy for Sustainable Weed Management
2020
[8] Polyphenol-enriched spelt husk extracts improve growth and stress-related biochemical parameters under moderate salt stress in maize plants
Plant Physiology and Biochemistry, 2019
[9] Allelopathic effect of stressing sorghum on weed growth
2019
[10] appeared in final form in Plant Physiology and Biochemistry: PPB, copyright© 2019 Elsevier Masson SAS after peer review and technical editing by the …

Copyright © 2025 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.