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Vol. 12, Issue 2 (2023)

Impact of pre and post emergence of herbicides on growth, weed indices and yield attributes of Bt. cotton hybrids under high density planting in Maharashtra region

Author(s):
NS Rathod, VK Khargakharate, AB Deshmane and BB Bhosale
Abstract:
In recent years, the productivity of cotton has been increased substantially by adopting high density planting system in most of the cotton growing countries. An experiment was conducted during kharif 2021 at central farm, VNMKV, Parbhani, (MS). Comprised of three population densities 24,691 plants ha-1 (D1), 37,037 plants ha-1 (D2), 55,555 plants ha-1 (D3) and weed management practices, pre-emergence application of pendimethalin @ 1.0 kg ha-1 followed by two hand weeding and one hoeing (W1), pre-emergence pendimethalin followed by post emergence of pyrithiobac-sodium 60% + quizalofop-ethyl (75+50 g ha-1) (W2), post-emergence pyrithiobac-sodium + quizalofop-ethyl followed by one hand weeding (W3) and Weedy check (W4) in split plot during replication three. The maximum growth parameters, yield attributes and seed cotton yield were recorded with the application of pyrithiobac-sodium + quizalofop-ethyl (20-25 DAS) followed by 40 days hand weeding recorded more seed cotton yield (2019 kg ha-1), net monetary returns (Rs. 1,22,678 ha-1) and benefit cost ratio (2.47) was observed with higher weed control efficiency (56.59%) and significantly higher than other treatment of weed control plant density of 55,555 plant ha-1 (90 cm x 20 cm) produce significantly more seed cotton yield (1954 kg ha-1) which was at par with plant density of 37,037 plants ha-1 (90 cm x 30 cm) with seed cotton yield of 1767 kg ha-1.
Pages: 651-655  |  220 Views  139 Downloads


The Pharma Innovation Journal
How to cite this article:
NS Rathod, VK Khargakharate, AB Deshmane, BB Bhosale. Impact of pre and post emergence of herbicides on growth, weed indices and yield attributes of Bt. cotton hybrids under high density planting in Maharashtra region. Pharma Innovation 2023;12(2):651-655.

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