Document Type : Articles
Authors
1 Department of Horticulture and Landscape, College of Agriculture, University of Basrah, Basrah, Iraq
2 Department of Horticulture and Landscape, College of Agriculture, University of Karbala, Karbala Iraq
3 Department of Horticulture and Landscape, College of Agriculture, University of Kufa, Kufa , Iraq
Abstract
Throughout the 2021 season, an experiment was conducted to observe the impact of different mixtures on strawberry growth. The mixtures consisted of equal levels of microorganisms, specifically (20mlL-1 of Rhizobium combined with 20mlL-1 of Arbuscular mycorrhizal, and (20ml.L-1 of Bacillus subtilis combined with 20ml.L-1 of Arbuscular mycorrhizal).( 20mlL-1 of Rhizobium combined with 20mlL-1 of Trichoderma harzianum), (20ml.L-1 of Bacillus subtilis combined with 20mlL-1 of Trichoderma harzianum). Additionally, Marine Alga Extracts (MAE) at concentrations of 0.5 and 1 mlL-1 were included, along with a control treatment without any spray. The results revealed that treating the seedlings with 20 mlL-1 of Bacillus bacteria and 20 mlL-1 of Arbuscular mycorrhizal fungus resulted in a height of 11.02 cm. Similarly, treating the seedlings with 20ml.L-1 of Rhizobium bacteria and 20ml.L-1 of tricho fungus showed a significantly higher height of 11.13 cm compared to the control treatment , which only reached 2.20 cm. All combinations of microorganisms demonstrated a significant increase in the diameter of the seedlings. The diameter measurements were 2.73, 2.50, 3.13, and 2.01 mm for the different mixtures, respectively. Furthermore, the treatment with Rhizobium bacteria and tricho fungus exhibited a superior leaf area of 94.333 cm2, while the treatment with Bacillus bacteria and Arbuscular mycorrhizal fungus had a leaf area of 88.866 cm2. In contrast, the control treatmenthad a leaf area of 68.666 cm2. The average weight of the fruit was significantly higher with the MAE treatment, with an average of 71.37 g. In contrast, the comparison treatment had the lowest average fruit weight of 22.873 g. On the other hand, the Microorganism treatment had a significantly higher average number of fruits, with an average of 10.36 fruits and seedlings. In comparison, the comparison treatment had the lowest average of 6.62 fruits and seedlings.
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