Research Article | Published: 01 March 2007

Dominance, diversity and species composition of the weeds of rice crop in Doon Valley

Neelam Sharma, Lokender Singh, S. P. Joshi and Rajesh Kumar Manhas

Journal of Non-Timber Forest Products | Volume: 14 | Issue: 1 | Page No. 63-69 | 2007
DOI: https://doi.org/10.54207/bsmps2000-2007-W0412D | Cite this article

Abstract

Weeds have a direct effect on crop yields when they compete with the crop for nutrients, moisture and light. It is found infested with a variety of ways, which compete with the crop and often cause losses in grain yield ranging from 20-30%. During this study dominance, diversity and species composition of the weeds of Rice field in Doon Valley was studied. The study was conducted in the various Villages viz. Babugarh, Doctorganj and Bawanpur of the Vikasnagar block of Doon Valley in the month of August and September. A total of 24 weeds of rice fields were recorded in the selected sites. Lindernia anagallis, Cyperus iria and Echinochloa colona are the dominant weed species in the month of August, with the heighest IVI values (73.36, 57.69 and 67.45) in Babugarh, Doctorganj and Bawanpur respectively. Meanwhile, in September the highest IVI values (65.84, 53.66 and 94.56) were reported for weed species Caesulia axillaris, Cyperus difformis and Fimbristylis miliacea for the selected villages of Vikasnagar block of the Valley. Maximum diversity 2.54 was reported in the village Doctorganj during the month of September.

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How to cite

Sharma, N., Singh, L., Joshi, S.P. and Manhas, R.K., 2007. Dominance, diversity and species composition of the weeds of rice crop in Doon Valley. Journal of Non-Timber Forest Products, 14(1), pp.63-69. https://doi.org/10.54207/bsmps2000-2007-W0412D

Publication History

Manuscript Published on 01 March 2007

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