Effect of Herbicides for the Control of Fimbristylis miliacea (L.) Vahl. in Rice

Begum, Mahfuza; Juraimi, Abdul Shukor; Rastan, Syed Omar Syed; Amarthalingam, Rajan; Azmi, M. I. Muhammed

doi:10.3923/ja.2008.251.257

Cited by 21 publications

(21 citation statements)

References 11 publications

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“…In this present study all herbicide treatments failed to increase the number of rice culm due to intense competition with globe fringerush. On an ALS-susceptible population, bentazon and pyrazosulfuron-ethyl controlled globe fringerush and produced higher total number of culm m -2 than rice treated with bispyribac-sodium (Begum et al, 2008). The ALS herbicides did not generally reduce the number of filled grains in the current study, nor in previous related research (Begum et al, 2003).…”

Section: Resultscontrasting

confidence: 46%

“…The same experiment by Begum et al (2008) also showed that bispyribacsodium increased the number of rice grains per panicle. In this present study all herbicide treatments failed to increase the number of rice culm due to intense competition with globe fringerush.…”

Section: Resultsmentioning

confidence: 48%

“…There was earlier evidence that the population infesting this location (Noldin, et al, 2002) had cross-resistance to three (Begum et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

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Globe fringerush (Fimbristylis miliacea) cross resistance to als-inhibitor herbicides under field conditions in irrigated rice in the south of Brazil

et al. 2013

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ALS-inhibiting herbicides usually provide adequate weed control in irrigated rice fields. After consecutive years of use, the Cyperaceae species, globe fringerush (Fimbristylis miliacea) began to show resistance to ALS (acetolactate synthase) inhibitors. Globe fringerush is one of the most problematic herbicide-resistant weeds in irrigated rice in the state of Santa Catarina in the South of Brazil. The objective of this research was to examine cross resistance of globe fringerush to ALS inhibitors, under field conditions. Two experiments were conducted in a rice field naturally infested with ALS-resistant globe fringerush in Santa Catarina, in the 2008/09 and 2009/10 cropping seasons. The experimental units were arranged in randomized complete block design, with five replicates, consisting of two factors (herbicide and dose) in a 4 x 5 factorial arrangement. ALS herbicides included bispyribac-sodium, ethoxysulfuron, pyrazosulfuron-ethyl and penoxsulam. Six-leaf globe fringerush was sprayed with herbicide doses of 0, 0.5, 1, 2 and 4X the recommended doses in a spray volume of 200 L ha-1. The number of rice culm, filled and sterile grains, plant height, dry shoot biomass and grain yield were recorded. Globe fringerush control was evaluated 28 and 70 days after herbicide application (DAA); shoots were harvested at 13 weeks after herbicide application and dry weight recorded. Competition with globe fringerush reduced the number of culm and rice grain yield. The globe fringerush biotype in this field was resistant to all ALS herbicides tested. Penoxsulam had the highest level of activity among treatments at 28 and 70 DAA, but the control level was only 50% and 42%, respectively, in the second year of assessment. This was not enough to prevent rice yield loss. Alternative herbicides and weed control strategies are necessary to avoid yield losses in rice fields infested with ALS-resistant biotypes of globe fringerush.

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Section: Resultscontrasting

confidence: 46%

Section: Resultsmentioning

confidence: 48%

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Globe fringerush (Fimbristylis miliacea) cross resistance to als-inhibitor herbicides under field conditions in irrigated rice in the south of Brazil

et al. 2013

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“…That's why they obviously have some detrimental effects on main crop (Begum et al, 2008;Scarponi et al, 2005;Islam, 2001;Rahman, 2001), surrounding ecosystems (Panda and Sahu, 2004;Bromilow, 2003;Sannino and Gianfreda 2001), and human health (Gammon, 2009). Therefore, judicious use of herbicides is essential to ensure proper weed control, crop growth and yield, and environmental safety.…”

Section: Introductionmentioning

confidence: 99%

Effect of Herbicide Dose and Water Management on Weed Control Efficiency and Yield Performance of Boro Rice

et al. 2016

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An experiment was conducted at the Experimental Farm of the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur during November 2011 to May 2012 to determine the effect of pre-emergence herbicide Pretilachlor @ 75%, 100%, 125%, 150%, 175% and 200% of the recommended dose under two water management regime i.e. continuous flooding and field capacity on weed suppression and yield performance of Boro rice cv. BRRIdhan28. One weed free and one control (unweeded) treatment were also imposed for treatment comparison. The experiment was laid down in Split Plot design with three replications. Standard management practices for transplanted rice were followed. Continuous flooding was found to contribute better weed control efficiency than field capacity. At 60 DAT, the highest weed control efficiency of 65.75% was found in the treatment receiving Pretilachlor @ 125% of the recommended dose under continuous flooding and the least (54.76%) was found in the treatment receiving 75% of the recommended dose under field capacity. Continuous flooding contributed to more tillers than field capacity, and herbicide up to 125% of the recommended dose enhanced tillering in rice. At 75DAT the highest number of tillers (17.53 hill -1 ) were found in the plots receiving Pretilachlor @ 125% of the recommended dose under good water management (W1T3), while the lowest (11.10 hill -1 ) was recorded in W2T6 treatment receiving Pretilachlor @ 200% of the recommended dose under field capacity. The highest tiller mortality (27.90%) was observed in W1T3 treatment, whereas the least (8.06%) was observed in W2T5 treatment receiving the same herbicide @175% of the recommended dose under field capacity. Application of Pretilachlor at recommended dose under continuous flooding contributed to the highest crop dry matter production (1144.60g m -2 ) thus leading to the highest grain yield of 6.31 t ha -1 being followed by the treatment receiving Pretilachlor @ 125% of the recommended dose under same water management yielding 5.95 t ha -1 along with the highest harvest index of 0.58. Results revealed that Pretilachlor at recommended dose might be considered as viable option for weed management in transplanted Boro rice cultivation for effective weed management and satisfactory grain yield provided that appropriate water management is adopted.

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“…Ad hoc networks face threats that are not encountered in traditional network requirements. These unique threats induce types of network failure modes that cannot be handled by security services designed for the global internet infrastructure [2].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation Of NAODV ETCP To Handle Jelly Fish Attack

Dahiya¹,

Bhawana²

2016

IJECS

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This paper modifies the existing TCP and AODV system to handle the jelly fish periodic dropping attack, the jellyfish packet reordering attack and the jelly fish delay variance attack. The proposed system modifies the AODV routing protocol and TCP to handle the jelly fish attack variants. The proposed system uses the E_TCP of the existing system along with the modified AODV routing to get the effective results. In the E_TCP protocol the buffer stores the sequence number and the acknowledgement time while in the NAODV_ETCP protocol the fr(forwarding ratio) is also stored in buffer. This paper analyzes the performance using PDR, E2Edelay and the throughput on the various scenario attacked by different types of jellyfish attack. The result analysis shows that the performance of NAODV_ETCP is better than the ETCP protocol.

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Effect of Herbicides for the Control of Fimbristylis miliacea (L.) Vahl. in Rice

Cited by 21 publications

References 11 publications

Globe fringerush (Fimbristylis miliacea) cross resistance to als-inhibitor herbicides under field conditions in irrigated rice in the south of Brazil

Globe fringerush (Fimbristylis miliacea) cross resistance to als-inhibitor herbicides under field conditions in irrigated rice in the south of Brazil

Effect of Herbicide Dose and Water Management on Weed Control Efficiency and Yield Performance of Boro Rice

Design and Implementation Of NAODV ETCP To Handle Jelly Fish Attack

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