Reinvigoration of Deteriorated Seeds of Two Okra Varieties (Abelmoschus esculentus var ‘Smooth Green’ and var ‘Red Ruby’) Using Atmospheric Pressure Plasma Activated Water

Deteriorated seeds of okra varieties ‘Smooth Green’ and ‘Red Ruby’ were reinvigorated by soaking in plasma-activated water (PAW). After PAW treatment, germination and seedling characteristics were determined and compared with hydroprimed deteriorated seeds, unprimed deteriorated seeds, and healthy untreated seeds. Differences among treatments were analyzed using ANOVA and Tukey’s HSD test at α = 0.05. PAW-treated deteriorated seeds exhibited higher vigor and faster germination in both varieties compared with untreated seeds. Furthermore, PAW-treated seedlings developed longer and heavier shoots and roots. It is concluded that soaking deteriorated seeds in PAW enhanced germination by 12–16%. These findings demonstrate that PAW treatment can improve the germination and seedling characteristics of deteriorated okra seeds.