Journal
SUGAR TECH
Volume 24, Issue 2, Pages 532-541Publisher
SPRINGER INDIA
DOI: 10.1007/s12355-021-01064-5
Keywords
Sugar beet; B deficiency stress; Leaf performance parameters; Antioxidant enzymes
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Boron (B) deficiency inhibits sugar beet seedling growth, leading to stunted plant parts growth, increased leaf specific weight, and enlarged root-shoot ratio. Additionally, deficiency in B results in decreased antioxidant enzyme activities, inducing oxidative stress in plant cells.
Boron (B) deficiency influences sugar beet development and productivity. A hydroponic set up of experiment was conducted by utilizing different B concentrations to study the impact of different morphological and physiological responses of sugar beet seedlings under B deficiency. The results showed that B deficiency (14 days of stress) inhibited the growth of different plant parts of sugar beet. The B deficiency significantly increased the leaf specific weight (SLW) and the root-shoot ratio of sugar beet seedlings. The activities of peroxidase (POD), catalase (CAT), and superoxide dismutase (SOD) showed a decreasing tendency under B deficiency, while the contents of hydrogen peroxide (H2O2) and superoxide (O-2(-)) increased with B concentration. Malonaldehyde (MDA) and proline contents were induced at B deficiency. In conclusion, B deficiency significantly reduced dry weight and leaf area, resulting in stunted sugar beet seedlings. It was manifested by a significant decrease in antioxidant enzyme activities and accumulation of ROS in the plant cells, inducing oxidative stress. The current study revealed that B deficiency affects plant growth and various morpho-physiological processes.
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