International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565

International Journal of Chemical Studies

Vol. 6, Issue 2 (2018)
Effect of seed rate and weed management practices on growth parameters and dry matter accumulation of late sown wheat (Triticum aestivum L.)


Author(s): Rajesh Kumar, Vishuddha Nand, RK Doharey, Sanjay Kumar Verma and Raju

Abstract: An experiment was conducted at Crop Research Center of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh during Rabi seasons of 2012-13 and 2013-14 to assess the effect of seed rate and weed management practices on growth parameters and dry matter accumulation of late sown wheat (Triticum aestivum L.). The treatment consisted of three seed rate 100,125 and 150kg ha-1 in main plot and six weed management practices viz. Sulfosulfuron 25 g ha-1, Sulfosulfuron + Metsulfuron (30 + 2 g ha-1), Clodinafop + Metsulfuron (60 + 4 g ha-1), Fenoxaprop-p-ethyl + Metribuzin (120 + 210 g ha-1), two hand weeding (120 and 40 DAS) and weedy check in sub-plots. The experiment was laid out in split plot design with three replications. Sowing with 150 kg ha-1 seed rate recorded maximum germination count at 15 DAS, number of tillers/m1 row length, Plant height, leaf area index (LAI), and dry matter accumulation which were significantly higher than 100 and 125 kg ha-1 seed rate. Germination count of wheat at 15 DAS was almost similar under all the weed management practices. At 30 DAS two hand weeding produce significantly higher number of tillers m-1 row length and plant height than rest of the weed management practices, while LAI and dry matter accumulation was non-significant. At 60, 90 DAS and at harvest number of tillers, Plant height, LAI and dry matter accumulation recorded maximum with two hand weeding which was at par with Clodinafop + Metsulfuron (60 + 4 g ha- 1), Sulfosulfuron + Metsulfuron (30 + 2 g ha-1), Sulfosulfuron 25 g ha-1 and significantly higher than Fenoxaprop-p-ethyl + Metribuzin (120 + 210 g ha-1) and weedy check. Fenoxaprop-p-ethyl + Metribuzin (120 + 210 g ha-1) had Phytotoxic effect on wheat plants was produce minimum number of tillers, plant height, leaf area index and dry matter accumulation at all the stages of observation taken which was at par with weedy check.

Pages: 2498-2502  |  287 Views  4 Downloads

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How to cite this article:
Rajesh Kumar, Vishuddha Nand, RK Doharey, Sanjay Kumar Verma, Raju. Effect of seed rate and weed management practices on growth parameters and dry matter accumulation of late sown wheat (Triticum aestivum L.). Int J Chem Stud 2018;6(2):2498-2502.
International Journal of Chemical Studies