Indexing

Floristic Composition of Weeds in Paddy Fields of Ri Bhoi District of Meghalaya

Author: Premaradhya, N., Vishram Ram, Santosh Korav and N.J. Singh

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Abstract

The present investigation was undertaken to assess the distribution and pattern of weed flora prevailing in the rice fields of Ri-Bhoi district of Meghalaya. A random field survey was conducted in the farmers’ rice field (75 sites and 3 quadrates in each site of the Ri-Bhoi district of Meghalaya during the rainy season of 2016 and 2017. The region experiences a tropical monsoon climate, in two study sites, i.e., upland which is broadcasted with no management system practiced in traditional methods of jhum fields and in lowland, which is submerged and transplanted system practiced in the valleys which is frequently flooded due to heavy rainfall. The genus and species of weeds were precisely identified and counted number of weeds present in the 1m2 quadrate from all the sites of the study area using GPS coordinates and various phytosociological parameters such as Density, Frequency, Abundance and Importance Value Index (IVI) were calculated, based on the data collected in the district.

Keywords

Phytosociology, Oryza sativa, Importance Value Index, Weed control strategy and weed flora.

Conclusion

The present study was conducted as a first ever attempt from the study area to explore and identify the weeds of paddy crop. Study was able to establish that the most important weeds that were associated and the diversity pattern with the paddy crop in the study area are of grass and sedge family in lowlands and broadleaves and sedges in uplands. The present analysis would be useful in developing future crop management and devising methods to control those specific areas through long-term monitoring of weed diversity in this region in the context of precision agriculture.

References

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How to cite this article

Premaradhya, N., Ram, V., Korav, S. and Singh, N. J. (2021). Floristic Composition of Weeds in Paddy Fields of Ri Bhoi District of Meghalaya. Biological Forum – An International Journal, 13(3): 309-314.