Enhancement of drought tolerance in potato employing nanoparticles of different biostimulants

Improving drought tolerance of potato (Solanum tuberosum L.) is integral, particularly under current climate fluctuations. The objective of this study was to assess the impact of different concentrations of nanoparticles of ascorbic acid (AS), benzoic acid (BA), and salicylic acid (SA) individually...

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Bibliographic Details
Published in:Chilean journal of agricultural research 2024-02, Vol.84 (2), p.246-259
Main Authors: Alowaiesh, Bassam F, Awad, Nabil S, Eldenary, Mohammad E, Abd El Moneim, Diaa
Format: Article
Language:eng ; por
Subjects:
AGRICULTURE, MULTIDISCIPLINARY
AGRONOMY
Analysis
Ascorbic acid
Benzoic acid
Climate change
Cultivars
Drought resistance
Environmental stress
Light scattering
Nanoparticles
Organic acids
Photon correlation spectroscopy
Polyethylene glycol
Polyols
Potatoes
Salicylic acid
Size distribution
Surface charge
Water scarcity
Water shortages
Zeta potential
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Summary:Improving drought tolerance of potato (Solanum tuberosum L.) is integral, particularly under current climate fluctuations. The objective of this study was to assess the impact of different concentrations of nanoparticles of ascorbic acid (AS), benzoic acid (BA), and salicylic acid (SA) individually and in combined treatments on potato under drought-induced stress. The assessed biostimulants with different concentrations (0.50 and 0.75 mM) were applied to two potato cultivars (Spunta and Lady-Rosetta). Nodal cutting of each cultivar was exposed to drought stress via 30% polyethylene glycol (PEG) in MS media. Five growth characters (plantlet length, number of leaves [plant.sup.-1], number of roots, number of lateral branches [plantlet.sup.-1], and root length) were measured after 7, 14, and 21 d. The results indicated that the evaluated cultivars exhibited highly significant differences (< 0.001) in all characters. Moreover, all evaluated nano biostimulants recorded highly significant differences (< 0.001) compared to the untreated control. The co-application of two nano biostimulants was stronger than the sole use of one material. The co-application of AS+BA was the most effective, and its impact was more considerable compared to the other treatments. The assessed cultivars displayed significant interaction with the application of nano biostimulants. 'Lady-Rosetta' responded more to the applied nano biostimulants in all studied characters. In conclusion, applying AS, SA, and BA improved the growth of 'Lady-Rosetta' under drought stress conditions. Furthermore, the combined treatment AS+BA is more powerful in modulating drought stress's adverse impacts on potato plants. Key words: Drought-induced stress, heatmap, and hierarchical clustering, polyethylene glycol, principal component analysis, Solanum tuberosum.
ISSN:0718-5839
0718-5820
0718-5839
DOI:10.4067/S0718-58392024000200246