Impact oF Hydrogen Sulfide and Nitric Oxide on Productivity, Heat Use Efficiency and Quality of Potato Tubers Under Heat Stress | ||
| Journal of Plant Production | ||
| Articles in Press, Corrected Proof, Available Online from 08 October 2025 PDF (668.28 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2025.423300.1508 | ||
| Authors | ||
| S. S.T. EL-Afify* 1; Samar A. Bardisi2; H. M. B. EL-Metwally1 | ||
| 1Hort. Res. Inst., Agric. Res. Center, Giza, Egypt | ||
| 2Hort. Dept., Fac. Agric., Zagazig University ,Egypt | ||
| Abstract | ||
| The study was carried out on potato plants to assess the effects of foliar spraying with sodium hydrosulfide (NaSH) a donor of hydrogen sulfide (H2S ) at a concentration of 0, 1, 2.5, and 5.0 ml/L-1 and nitric acid (HNO3) a donor of nitric oxide ( NO ) at a concentration of 0, 1, 5.0, 7.5 and 10 ml/L-1, either separately or in combination. However The experiment was conducted during the summers of 2024 and 2025 on a private vegetable farm in Bosat Karm El-Din Village, Sherbin district, Dakahlia Governorate, Egypt.Foliar of potato plants grown in summer plantation with sodium hydrosulfide (NaSH) a donor of hydrogen sulfide (H2S) at 5 ml/l-1 and with nitric acid (HNO3) a donor of nitric oxide ( NO ) at 7.5 ml/l-1 increased vegetative growth parameters, dry weight /plant, average tuber weight , yield / plant and total yield /fed. as well as heat use efficiency , in addition, the interaction between foliar spray with NaSH (H2S - donor) at 2.5 ml/l-1 and foliar spray with HNO3 ( NO donor) at 7.5 ml/l-1 increased total chlorophyll and Superoxide dismutase enzyme (SOD) in leaves , while control treatment ( spraying with water ) increased Malondialdehyde (MDA) in leaves at 90 days after planting in both seasons . Whereas, spraying with NaSH (H2S - donor) at 5 ml/l-1 and nitric acid at 10 ml/l-1 increased dry matter (%), TSS ( Brixo), total sugars and starch content in tubers. | ||
| Keywords | ||
| Potato; Sodium hydrosulfide sulfide (H2S – donor); nitric acid (NO – donor) | ||
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