Synergistic Effect of Exogenous Application of Proline and Boric Acid on the Growth, Physiological Aspects, and Postharvest Quality of Radish under Salt Stress
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View abstract on PubMed
Summary
This summary is machine-generated.Exogenous application of proline and boric acid significantly improved radish growth and physiological responses under salt stress. The combination of proline and boric acid (5 mM + 1 mM) offers a viable strategy to mitigate salt stress effects in crops.
Area Of Science
- Agricultural Science
- Plant Physiology
- Crop Science
Background
- Salinity is a major abiotic stress limiting crop yield, especially in arid and semi-arid regions.
- Exogenous application of proline and boric acid has shown potential in enhancing plant tolerance to salt stress.
Purpose Of The Study
- To evaluate the impact of exogenous proline and boric acid on radish growth, physiology, and postharvest quality under varying levels of salt stress.
- To determine the optimal application of these compounds for mitigating salinity effects in radish.
Main Methods
- Greenhouse experiment using a randomized block design with a 3x4 factorial arrangement.
- Three irrigation water salinity levels (0.5, 2.5, 4.5 dS m⁻¹).
- Four treatments: control, proline (5 mM), boric acid (1 mM), and combined proline + boric acid (5 mM + 1 mM).
Main Results
- Proline and boric acid application improved radish growth and physiological responses at 2.5 and 4.5 dS m⁻¹ salinity.
- The combination of proline + boric acid significantly increased plant height, stem diameter, photosynthetic rate, shoot dry mass, and pulp firmness.
- Boric acid boosted chlorophyll a and anthocyanin levels, while proline enhanced flavonoids and anthocyanins under stress.
Conclusions
- Combined application of proline (5 mM) and boric acid (1 mM) is an effective strategy to mitigate the adverse effects of salt stress on radish.
- This approach can enhance radish growth, physiological functions, and postharvest quality under saline conditions.
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