Potential allelopathic inhibitory effect of Salix nigra on growth of Triticum aestivum
By: Wasim Ahmed, Mushtaq Ahmad, Rahmat Ali Khan
Key Words: Salix nigra, Allelopathy, Triticum aestivum.
Int. J. Biosci. 8(3), 29-34, March 2016.
The importance of the role of allelopathy in agro-eco system cannot be denied. Molisch, in 1937, put forwarded the concept of allelopathy to explain how a plant can impart its harmful/beneficial effects upon the other with the release of certain molecules in their surroundings. The present work was carried out as a preliminary study to investigate any possible herbicidal activity of the plant’s extract on growth of Triticum aestivum. Modified protocol of McLaughlin and Rogers was used to carry out petri plates study. Similarly, open field study was also carried out to get more precise results.
Our results showed that the crude extract of our plant significantly (P > 0.05) inhibited the shoot (hypocotyls) growth of wheat compared to control after 3rd & 5th days. The data also indicated that the extract significantly inhibited roots growth as compared to non-treated water (control) group. After complete treatment with sample solutions, fresh and dry weight of all replicates was calculated and this exposed that our plant extract extensively (P < 0.05) controlled the fresh as well dry weight. Similarly, in field study, results indicated that it markedly (P<0.05) inhibited shoot growth compared to control. After complete treatment, fresh and dry weight of all replicates were measured which revealed that the extract significantly (P<0.05) decreased fresh as well dry weight of wheat.