AI Article Synopsis
- * The study focused on five types of SAPs, revealing that these coatings improve germination rates and reduce oxidative stress and damage during seedling development.
- * In a practical application in Inner Mongolia, seeds coated with the most effective SAP (D) showed a twofold increase in seedling growth compared to uncoated seeds, indicating potential benefits for planting in drought-prone areas.
Article Abstract
Coating seeds with water absorbent materials can improve their survival, especially for those planted in drought or barren areas. In this study, effects of five kinds of super absorbent polymers (SAPs) on seed germination and seedling growth of Caragana korshinskii under drought conditions were investigated. Our results showed that SAP coatings could significantly improve the percentage and energy of seed germination, as well as reduce the relative electrical conductivity (REC), proline, malondialdehyde (MDA), HO content, and peroxidase (POD) activity during germination. These results implied that seeds could uptake moisture from SAP coatings to alleviate drought-induced oxidative stress and membrane damage, thus exhibiting a better vigor and germination performance. After coating C. korshinskii seeds with SAPs, more seedlings emerged and grew better. Under the combined influence of the water absorption capacity of SAP and other factors, the efficiencies of five SAP coatings are in the sequence D>E>B>A>C. The function of the SAP coating on promoting seedling survival was confirmed in Mu Us Sandy Land in Ordos, Inner Mongolia Autonomous Region, China. The average seedling number of SAP D-coated seeds increased twofold on that of naked seeds. Our results are expected to be helpful in understanding and utilizing SAP seed coatings in improving plant survival under drought conditions.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5565517 | PMC |
| http://dx.doi.org/10.1631/jzus.B1600350 | DOI Listing |
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