Abstract
The present study was to identify the communities of B. tournefortii Gouan in Al-Jouf areas in northern Saudi Arabia, to determine soil factors controlling its genetic variability and its allelopathic control. The plant communities dominated by B. tournefortii were investigated in fifteen localities. A collection of fifteen Saudi Arabian B. tournefortii populations was evaluated using five morphological traits. Analysis of variance and correlation coefficient were performed based on R software package. Soils representing each community were analyzed using eleven physico-chemical parameters. The allelopathic effects of Portulaca oleracea and Pulicaria undulata and their mixtures on germination, seedling root and shoot growth of B. tournefortii were investigated. The dendrogram based on trait variation using UPGMA method, shows genetic difference between the studied populations. Genetic variability analysis showed a important variability of number of seeds per plant (cv = 19.522) and number of pods per plant (cv = 11.663). The water extracts of Portulaca oleracea and Pulicaria undulata could be applied at a concentration of 10 g/L for the management of this species.
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Naghmouchi, S., Alsubeie, M. Influence of the Allelopathic Properties of the Soils on the Genetic, Physiological and Morphological Parameters of Brassica tournefortii from Different Populations in Northern Saudi Arabia. Russ J Ecol 51, 233–241 (2020). https://doi.org/10.1134/S106741362003011X
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DOI: https://doi.org/10.1134/S106741362003011X