Impact oF Hydrogen Sulfide and Nitric Oxide on Productivity, Heat Use Efficiency and Quality of Potato Tubers Under Heat Stress

Document Type : Original Article

Authors

1 Hort. Res. Inst., Agric. Res. Center, Giza, Egypt

2 Hort. 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

Journal of Plant Production
Volume 16, Issue 10
October 2025
Pages 575-584

Files

Share

How to cite

Statistics