Weed diversity in rice crop fields of Fatehgarh Sahib District, Punjab, India
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Abstract
A total of 31 species of weeds belonging to 11 families was collected from rice fields in Fatehgarh District of Punjab between June and November 2017. Of the 31 species, 15 were dicots and 16 were monocots. Of the 11 families, six (Portulacaceae, Lythraceae, Solanaceae, Scrophulariaceae, Polygonaceae, and Commelinaceae) were represented by only one species each. Poaceae was the largest family represented by 10 species, followed by Asteraceae and Cyperaceae with five species each. The largest genus was Cyperus with four species, followed by Euphorbia, Echinochloa, and Eragrostis with two species each. Of the 31 weed species, 29 were annual and only two, Cyperus rotundus and Parthenium hysterophorus, were perennials. More detailed survey work is required on a regular basis to identify possible problematic weeds and new or improved control measures.
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