Vol. 7, Issue 2 (2019)
Yield losses due to dominant weed species in direct seeded rice (Oryza sativa L.) in Chhattisgarh plains
Author(s): Vidhi Garg, Nitish Tiwari and Omprakash Rajwade
Abstract: A field experiment was conducted at Raipur to study the yield losses due to dominant weed species in direct seeded rice (Oryza sativa L.). Five Major weed flora were allowed to grow: Echinochloa colona, Cyperus iria, Alternanthera triandra, Spilanthes acmella, Cyanotis axilaris and group of weed species including grassy weeds, broad leaved weeds, mixed flora (control). The result of the experiment indicated that maximum yield losses occurred due to mixed flora (control) and the minimum yield loss occurred in weed free treatment. Among the five major weed species weed density, weed dry weight at harvest were maximum in Spilanthes acmella which were followed by Alternanthera triandra, Cyanotis axilaris Cyperus iria, Echinochloa colona. The highest grain (4.49 t ha-1) and straw yield (4.71 t ha-1) of rice were observed in weed free treatment and the minimum grain (0.53 t ha-1) and straw yield (0.93 t ha-1) under mixed flora (control).
Pages: 1168-1172 | 304 Views 51 Downloads
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How to cite this article:
Vidhi Garg, Nitish Tiwari, Omprakash Rajwade. Yield losses due to dominant weed species in direct seeded rice (Oryza sativa L.) in Chhattisgarh plains. Int J Chem Stud 2019;7(2):1168-1172.
