Herbicide weed management on weed dynamics, crop growth and yield in direct-seeded rice

Choudhary, V. K.; Dixit, Anil

doi:10.5958/0974-8164.2018.00002.3

Cited by 18 publications

(21 citation statements)

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“…A similar result was also observed by Verma et al (2016) who observed that integration of physical, chemical, and cultural method resulted in lower weed density and dry matter accumulation in DSR. Choudhary and Dixit (2018) reported 40-50% control of weed by sole application of pendimethalin. The effect of different weed management practices on weed dry matter accumulation (g m -2 ) of different weed categories at 60 days of crop growth has been presented in Table 1.…”

Section: Effect On Weed Biomassmentioning

confidence: 99%

Integrated Use of Herbicide and Weed Mulch with Closer Spacing for Weed Management in Dry Direct Seeded Rice

Malik¹,

Duary²,

Jaiswal³

2021

IJBSM

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The field experiments were conducted during the wet season of 2015 and 2016 (June to October) at Agricultural Farm, Institute of Agriculture, Visva-Bharati, Sriniketan, India to study the impact of integrated use of weed mulch and herbicide with closer spacing on weed growth and yield of direct seeded dry sown rice (Oryza sativa L.) cultivar MTU 1010. The experiment consisted of twelve treatments involving sole or integrated application of pre-emergence herbicide pendimethalin, mulching with water hyacinth and Indigofera weed and closer row spacing of 20 cm. The experiment was laid out in randomized block design with three replications. The experimental field was infested with 14 weeds out of which the predominant species were Cynodon dactylon, Echinochloa colona, Cyperus iria, Ludwigia parviflora, Hydrolea zeylanica, Spilanthes acmella, Alternanthera sessilis, Commelina benghalensis and Cyanotis axillaris. Integration of pendimethalin at 0.75 kg ha-1 and mulching with water hyacinth and closer spacing reduced weed dry weight by 75.92% over the weedy check. Integration of mulching with water hyacinth and closer spacing increased grain yield by 37.27 and 41.12% over sole application of pendimethalin and water hyacinth mulch, respectively. Weed competition resulted in 57% reduction in grain yield of rice. Hand weeding twice (25 and 45 DAS) had a significant effect on the reduction of weed density and dry weight and increasing grain yield of rice which was followed by application of pendimethalin 0.75 kg ha-1 along with mulching with water hyacinth at a closer row spacing of 20 cm.

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Section: Effect On Weed Biomassmentioning

confidence: 99%

Integrated Use of Herbicide and Weed Mulch with Closer Spacing for Weed Management in Dry Direct Seeded Rice

Malik¹,

Duary²,

Jaiswal³

2021

IJBSM

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“…may also lead to differential performance of cultivars. The challenges of enhanced weed pressure under saturation moisture regime at establishment stage (Chauhan 2012) are addressed through suitable herbicide (Choudhary and Anil Dixit, 2018). It is in this context of above challenges to direct seeding and solutions evolved, the performance of promising high yielding varieties and hybrids belonging to different maturity groups (early, mid early and medium) under direct seeding as compared to transplanting was assessed to answer the question that Is direct seeding an alternative to transplanted rice culture and how transplanted rice cultivars perform under direct seeding?.…”

Section: Issn: 2319-7706 Volume 8 Number 05 (2019)mentioning

confidence: 99%

Is Direct Seeding an Alternative to Transplanted Rice Culture and How Transplanted Rice Cultivars Perform under Direct Seeding?

Gangaiah¹,

Babu²

2019

Int.J.Curr.Microbiol.App.Sci

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“…Acetolactate synthase (ALS)-inhibiting herbicides have been widely used for broad-spectrum control of weeds in rice (Mascanzoni et al 2018;Riar et al 2015). These herbicides proved extremely effective in controlling weeds and were readily adopted by rice growers (Choudhary and Dixit 2018;Kumar and Ladha 2011). A majority of rice growers in India have been using ALSinhibiting herbicides such as bispyribac-sodium, penoxsulam, chlorimuron-ethyl, metsulfuron-methyl, pyrazosulfuron, bensulfuron, and ethoxysulfuron for more than a decade (Choudhary and Dixit 2018).…”

Section: Introductionmentioning

confidence: 99%

“…These herbicides proved extremely effective in controlling weeds and were readily adopted by rice growers (Choudhary and Dixit 2018;Kumar and Ladha 2011). A majority of rice growers in India have been using ALSinhibiting herbicides such as bispyribac-sodium, penoxsulam, chlorimuron-ethyl, metsulfuron-methyl, pyrazosulfuron, bensulfuron, and ethoxysulfuron for more than a decade (Choudhary and Dixit 2018). The ALS-inhibiting herbicides prevent the synthesis of branched-chain amino acids like leucine, isoleucine, and valine, which are essential for growth and development of the plant, and the absence of these amino acids leads to drastic reduction of shoot and root growth and, eventually, plant death (Lamego et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Resistance in smallflower umbrella sedge (Cyperus difformis) to an acetolactate synthase–inhibiting herbicide in rice: first case in India

et al. 2021

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Smallflower umbrella sedge is one of the problematic weeds in direct-seeded rice in India. Bispyribac-sodium (acetolactate synthase-inhibiting herbicide) is a commonly used in rice, but recently growers have reported lack of smallflower umbrella sedge control with this herbicide. An extensive survey was carried out in two rice growing states, Chhattisgarh and Kerala, where 53 putative bispyribac-sodium resistant (BR) biotypes were collected. Studies were conducted to confirm resistance to bispyribac-sodium and to test the efficacy of newly developed synthetic auxin herbicide florpyrauxifen-benzyl on putative BR biotypes. Whole-plant bioassay revealed that bispyribac-sodium is no longer effective. Of 53 putative BR biotypes, 17 biotypes survived recommended label rate of 25 g ai ha−1. Effective bispyribac-sodium rate required to control 50% of the plants in most of the BR biotypes (ED50) ranged from 19 to 96 g ha−1 whereas it was 10 g ha−1 in susceptible biotype. In two highly resistant biotypes, ED50 was beyond the maximum tested rate, 200 g ha−1. This suggests 2 to >20-fold resistance in BR biotypes. Acetolactate synthase (ALS) enzyme activity assay suggests altered target site as mechanism of resistance to bispyribac-sodium. This study confirms the first case of evolved resistance in smallflower umbrella sedge for bispyribac-sodium in India. However, the newly developed synthetic auxin, florpyrauxifen-benzyl effectively controlled all BR biotypes at the field use rate 31.25 g ae ha−1.

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Herbicide weed management on weed dynamics, crop growth and yield in direct-seeded rice

Cited by 18 publications

References 0 publications

Integrated Use of Herbicide and Weed Mulch with Closer Spacing for Weed Management in Dry Direct Seeded Rice

Integrated Use of Herbicide and Weed Mulch with Closer Spacing for Weed Management in Dry Direct Seeded Rice

Is Direct Seeding an Alternative to Transplanted Rice Culture and How Transplanted Rice Cultivars Perform under Direct Seeding?

Resistance in smallflower umbrella sedge (Cyperus difformis) to an acetolactate synthase–inhibiting herbicide in rice: first case in India

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