Impact of Different Shade Environments on Growth and Development of Purple Nutsdge (Cyperus rotundus L.)

Author: K. Srimathi*, C. R. Chinnamuthu, R. Karthikeyan, R. Gnanam and A. Lakshmanan

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Abstract

Purple nutsedge (Cyperus rotundus L.) is one of the most invasive perennial sedges and is considered the world’s worst weed. The sedges propagate mainly by producing a complex underground system of rhizomes, basal bulbs and tubers. The tubers will remain viable for more than three years and can withstand any adverse environmental conditions. In addition, the lack of an effective long-term strategy to control, this weed becomes aggressive and troublesome throughout the world. Because of their extreme competitiveness, weeds continue to dominate crops. Understanding the dynamics of crop-weed competition is thus critical for expanding weed management approaches and improving them over time. Because both crops and weeds compete for light by shading each other, a thorough understanding of the different competitive potentials of crops and weeds in the shade is essential for developing effective weed control strategies. The present experiment was founded on all of the preceding deductions an

Keywords

Purple nutsedge, weed, shade, tuber, biomass, leaf area