Biopriming of Stevia rebaudiana seeds by plant growth promoting bacteria to improve seed germination | ||
| Mansoura Journal of Biology | ||
| Volume 50, Issue 1, March 2021, Pages 22-26 PDF (860.75 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjb.2021.460279 | ||
| Authors | ||
| Amal M. Abdelsattar* 1; Mohamed A. El-Esawi2; Yasmin M. Heikal1; Ashraf Elsayed1 | ||
| 1Botany Department, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt | ||
| 2Botany Department, Faculty of Science, Tanta University, 31527, Tanta, Egypt | ||
| Abstract | ||
| Poor germination and low seedling growth of Stevia rebaudiana Bertoni are common problems in the cultivation of the plant causing scarce plant material and high cost of the product. A consistent, efficient and eco-friendly approach could be the exploitation of biostimulants seedlings and plant-based biostimulants (PBs) as microbial, natural or organic-based, which may have the potential to stimulate plant growth in synergistically. Seed biopriming was performed by four plant growth promoting bacteria; Bacillus cereus, Bacillus licheniformis, Bacillus paralicheniformis and Bacillus paramycoids. Soaking of seeds in bacterial suspension of plant growth promoting strains and in co-culture between them overnight under aseptic condition proves that the significance of co-culture in the improvement of seed germination with percentage up to 40% compared with single strains of 20% and control of 5%. Therefore, we suggest that seed biopriming with the integrated application of these four biostimulants at an appropriate concentration can enhance the poor germination performance of S. rebaudiana and improves the seedling growth. | ||
| Keywords | ||
| Seed priming; Stevia; Germination indices; Biostimulants; Endophytic colonization | ||
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