PJB-2023-138
Article Mitigation of Acacia nilotica distinctive parts allelopathic effect on germination and seedling growth by plant derived smoke solutions Lubna 1,, Sajjad Asaf 1*
Lubna
Abstract
Allelopathy is one of the factors that critically affect maize and wheat production by releasing allelochemicals. These allelochemicals are released by different plant organs in various concentrations which negatively affect the seed germination and seedling growth. The alleviation of allelopathic effect has always been a question mark for researchers. In this study, the allelopathic effects of A. nilotica (aqueous extracts) in different parts (root, bark, leaf, flower, pod and seed) aqueous extracts were investigated on wheat and maize germination and seedling growth. Furthermore, Cymbopogon jwarancusa derived smoke solutions were used to alleviate the inhibitory effect of A. nilotica aqueous extracts. The results revealed that the allelopathic potential of A. nilotica varied in different parts. Leaf and flower aqueous extracts, which exhibited a higher inhibitory effect, significantly reduced seed germination and seedling growth in wheat and maize. The degree of inhibition is influenced by the concentration. Furthermore, the alleviation solution (C. jwarancusa solution + A. nilotica extract) mitigates the inhibitory effect of leaf and flower extracts on seed germination of both wheat and maize. Similarly, in case of seedling growth, the alleviating solution showed promotory effect and alleviate the inhibitory effect of both flower and leaves extracts. These results indicate that the plant derived smoke solution is a natural extract to alleviate the negative allelopathic effect of A. nilotica on wheat and maize seed germination and seedling growth.
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