INFLUENCE OF PLANT GROWTH PROMOTING BACTERIA (PGPB) ON CORIANDER (Coriandrum sativum L.) AND DILL (Anethum graveolens L.) PLANTS | ||||
| Journal of Plant Production | ||||
| Article 6, Volume 6, Issue 2, February 2015, Page 205-218 PDF (496.63 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2015.49299 | ||||
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| Authors | ||||
| M. A. Hegazi1; M. M. S. Metwaly2; E. B. Belal3 | ||||
| 1Department of Horticulture, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt. | ||||
| 2Agricultural Botany Dep., (Agricultural Botany) Faculty of Agriculture, Kafrelsheikh Univ., 33516, Kafr El-Sheikh, Egypt. | ||||
| 3Agricultural Botany Dep., (Agricultural Microbiology) Faculty of Agriculture, Kafrelsheikh Univ., 33516, Kafr El-Sheikh, Egypt. | ||||
| Abstract | ||||
| Field experiments were conducted at the experimental Farm of the Faculty of Agriculture, Kafrelsheikh University during 2013/2014 and 2014/2015 seasons to study the effect of Azotobacter chrocooccum and Pseudomonas sp. on coriander (Coriandrum sativum, L.) and dill (Anethum graveolens, L.) plants. Indole-3-acetic acid in the supernatant of a culture A. chrocooccum and Pseudomonas sp. was detected. It was shown that Indole-3-acetic acid was induced by the presence of tryptophan. The highest concentration of Indole-3-acetic acid was produced byboth strainsat the end of the logarithmic phase. The bacterial strains were applied at the time of sowing as seed treatment. Data showed that A. chrocooccum surpassed Pseudomonas sp. in most vegetative growth and flowering characters (plant height, number of leaves/ plant, herb fresh and dry weights/ plant and umbels and umbellts number/plant), while Pseudomonas sp. gave the highest weight of 100 fruits, fruit yield per plant and per Feddan for both plants, respectively. The highest total chlorophyll contents were obtained when coriander and dill were treated with Pseudomonas sp. and A. chrocooccum, respectively. Pseudomonas sp. gave the best results for total carbohydrates, vitamin C, fresh herb and dry fruit oil % and fruits oil yield/ plant compared to A. chrocooccum or control treatments. Coriander fruit treatments with A. chrocooccum and Pseudomonas sp. increased anatomical parameters such as xylem vessel diameter, thickness of phloem tissue and vascular bundle as well as vascular bundle width comparing with the control treatment. The obtained results exhibited that, these bacterial strains could be used to increase coriander and dill productivity under field conditions. | ||||
| Keywords | ||||
| Coriander and dill plants; Plant growth promoting bacteria; Indole-3-acetic acid; Vegetative growth; anatomical parameters | ||||
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