ALLELOPATHIC POTENTIAL OF PARTHENIUM HYSTEROPHORUS AND TRIDAX PROCUMBENS AQUEOUS LEAF EXTRACTS ON WEED CONTROL AND GROWTH OF BLACKGRAM (VIGNA MUNGO L.)

M. SARANYA¹*, T. RANGARAJ², T. RAGAVAN³, R. AMUTHA^4
1Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
³Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
⁴Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
* Corresponding Author : saranyamuthusamy96@gmail.com

Received : 30-12-2019     Accepted : 12-01-2019     Published : 15-01-2019
Volume : 11     Issue : 1       Pages : 7697 - 7700
Int J Agr Sci 11.1 (2019):7697-7700

Keywords : Allelopathy, Blackgram, Growth and weed control efficiency
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All authors equally contributed

The pot culture experiment was conducted during September 2018 at Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, to assess allelopathic potential of Parthenium hysterophorus and Tridax procumbens aqueous leaf extracts on weeds and growth of blackgram. The experiment was laid out in completely randomized block design with 17 treatments replicated twice. The treatments consisted of pre and early post emergence application of Parthenium hysterophorus and Tridax procumbens aqueous leaf extract 0.5, 1.0, 2.0 and 3.0 per cent concentration. The results of the experiment revealed that the plant height, leaf area index and dry matter production was significantly influenced by aqueous leaf extract of Parthenium hysterophorus 3.0% as pre-emergence (PE) followed by Tridax procumbens 3.0% as PE. The data on weeds, total weed density and total dry weight of weeds were significantly reduced under pre-emergence (PE) application of aqueous leaf extract of Parthenium hysterophorus at 3.0% followed by Tridax procumbens at 3.0% as PE. Further, the weed density and dry weight of weeds were not significantly influenced by other concentrations tried.

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