Allelopathic Effects of Leaf Extracts of Glycosmis pentaphylla (Retz.) DC. on Triticum aestivum (L.) and Vigna radiata (L.) Wilczek

Autor: Anice Kurian M, P M Radhamany, Vinitha S Babu
Rok vydání: 2020
Předmět:
Zdroj: Advances in Zoology and Botany. 8:369-373
ISSN: 2331-5091
2331-5083
DOI: 10.13189/azb.2020.080409
Popis: Medicinal and aromatic plants have the ability to transmit volatile allelochemicals and affect their surrounding organisms. In this regard, their interaction should also be considered. Allelopathy can be widely used in agricultural practices considering their profound role in seed germination. The study presented in this work was designed to evaluate the allelopathic effects of Glycosmis pentaphylla (Retz.) DC. on the growth of a monocot plant Triticum aestivum (L.) and a dicot plant Vigna radiata (L.) Wilczek. This is the first report of a study on allelopathy in Glycosmis pentaphylla. Aqueous leaf extracts were used for the study. Parameters like germination percentage, plumule length, radical length, vigour index and percentage phytotoxicity of the seedlings were determined in a paper test. Concentration of the extract ranging from 2-10 ml along with a control was made to germinate the seedlings. The results were statistically tested by one-way ANOVA. The results revealed that, except for percentage phytotoxicity, all the parameters were indirectly proportional to the concentration of the extract applied. On the other hand, the percentage phytotoxicity was directly proportional to the concentration of the extract. The germination percentage (101.0±0.70), plumule length (8.51±0.005), vigour index (851.2±0.58) and percentage phytotoxicity (65.52±0.005) were found maximum for Vigna radiata than Triticum aestivum. On the other hand, T. aestivum showed the highest value for radicle length which was 3.20± 0.06. Hence, it can be gleaned from the results that, the dicot plant showed maximum growth due to the allelochemicals obtained from G. pentaphylla. As the study plants belong to the family Rutaceae, which is highly rich in aromatic oils, this might be a probable reason for the growth of test plants. The present study also indicates that, the allelochemicals released from G. pentaphylla were also responsible for the induction of variation in the germination of seedlings.
Databáze: OpenAIRE
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