Vol. 13 No. 3
Bio-efficacy studies of 2, 4-D amine 58% SL in wheat
Author(s): A. Labar, C. K. Kundu, T. Biswas, Md. Hedayetullah, R. K. Kole, S. K. Das, B. Biswas and R. K. Ghosh
Abstract: Field experiment was conducted in randomized block design with 8 treatments replicated thrice during rabi season of 2012 at Regional Research Station, BCKV, Chakdaha. The dominant weed flora in wheat consisted of Phalaris minor, Cynodon dactylon, Avena fatua, Cyperus rotundus, Cyperus iria, Chenopodium album, Cirsium arvense, Fumaria parviflora, Anagallis arvensis. The experimental results revealed that among the eight treatments, hand weeding twice at 15 and 30 DAS gave the highest grain yield (2.10 t ha-1), which, however did not differ significantly with the treatment 2, 4-D amine 58 SL 1 kg a.i. ha-1 applied postemergence at 30 DAS .2, 4-D amine 8 SL 1 kg a.i. ha-1 was able to effectively control all categories of dominant weed and gave the second highest yield (2.05 t ha-1). No phytotoxic symptoms such as epinasty /hyponasty, leaf yellowing, necrosis, stunting growth, wilting etc. were exhibited.
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