Study of Postharvest Weed Population in Paddy Fields

Golmohammadi, Mohammad Javad; Chamanabad, Hamid Reza Mohammaddoust; Yaghoubi, Bijan; Oveisi, Mostafa

doi:10.17582/journal.sja/2018/34.2.395.399

Cited by 3 publications

(3 citation statements)

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“…The ranking of weed types in rice fields in Penang state as recorded by Juraimi et al (2011) under saturated condition was in the order of sedges>broadleaf weeds > grasses which might be due to difference in edaphic and climatic conditions of the area. The differences in weed composition and dominance pattern are possibly attributed to variation in temperature, cropping pattern, rainfall conditions, management methods, and weed seed banks in the experimental plots (Juraimi et al 2010, Golmohammadi et al 2017.…”

Section: Resultsmentioning

confidence: 99%

Efficacy of Herbicides, Their Effects on Rice Yield Under Saturated Soil Condition

Abdullah¹,

Ahmad-Hamdani

Zakaria

et al. 2023

Bangladesh J. Bot.

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This study was carried out in containers which were placed outdoor to evaluate the efficacy of different herbicides with different mixtures on weed growth suppression in rice and their effects on rice grain yield under saturated soil water regime in two consecutive seasons (cropping season and off season) at the Universiti Putra Malaysia Farm, Serdang, Selangor, Malaysia during 2016 to 2017. Eight combinations of different herbicides, viz. T1, T2, T3, T4, T5, T6, T7 and T8 along with weed free and non-weeded treatments were used in the study following a RCBD. Weed composition in the experimental containers and their summed dominant ratio (SDR) at 60 days after planting were recorded from non-treated containers. Naturally grown eleven weed species mainly under the families of Poaceae, Cyperaceae and Pontederiaceae were found in the experimental containers. Based on the SDR values the dominant weed species were Monochoria vaginalis, Echinochloa crus-galli, and Fimbristylis miliacea in both the seasons. Results revealed that four herbicide treatments viz. Pretilachor fb Bentazon/MCPA (T1), Pretilachor+Pyribenzoxim fb Bentazon/MCPA (T2). Bispyribac-sodium fb Bentazon/MCPA (T2), Fenoxaprop+Ethoxysulfuron (T3), fb Bentazon/MCPA (T7) were superior in their effectiveness for weed control in both seasons and gave better rice grain yield with high economic return. Bangladesh J. Bot. 52(1): 37-44, 2023 (March)

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Section: Resultsmentioning

confidence: 99%

Efficacy of Herbicides, Their Effects on Rice Yield Under Saturated Soil Condition

Abdullah¹,

Ahmad-Hamdani

Zakaria

et al. 2023

Bangladesh J. Bot.

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“…Invasive weeds compete with paddy for natural resources, shelter the crop pests, reduce the crop yield, and subsequently increase the production cost. The predominant weed flora of a paddy field comprises grasses (Echinochloa colona, Echinochloa crus-galli, Eleusine indica, Cynodon dactylon); sedges (Cyperus rotundus, Cyperus iria, Cyperus difformis, Fimbristylis miliacea) and broad-leaved weeds (Alternanthera sessilis, Commelina benghalensis, Cyanotis axillaris, Sphaeranthus indicus, Eclipta alba) [4][5][6][7][8]. It is important to note that barnyard grass (Echinochloa crus-galli) is one of the most pernicious post-emergence grassy weeds abundantly found (96.9%) in paddy-producing areas.…”

Section: Introductionmentioning

confidence: 99%

Searching of Novel Herbicides for Paddy Field Weed Management—A Case Study with Acetyl-CoA Carboxylase

Antony

Ramanathan

2022

Agronomy

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Weed management is the major biological constraint in paddy (Oryza sativa L.) producing areas. Predominantly, barnyard grass (Echinochloa crus-galli) is a rice-mimicking weed that causes 57% of yield loss in rice production. Conventionally, herbicides are the site-specific weed inhibitors often used to suppress E. crus-galli growth. Acetyl-CoA carboxylase (ACCase) is an important target for developing novel herbicides with remarkable selectivity against gramineous weeds. Notably, fenoxaprop-P-ethyl (FPPE) is a selective ACCase herbicide extensively used in paddy fields to inhibit barnyard grass. However, prolonged use of FPPE herbicide elicits phytotoxicity in cultivated rice and herbicide resistance in weeds. Recently, phytotoxins are emerging as an alternative to commercial herbicides with safer environmental profiles. Nevertheless, discovering natural herbicides through in vivo and in vitro techniques is time-consuming and expensive. Therefore, high-end computational screening strategies including Tanimoto similarity, docking, binding free energy, and herbicide-likeness were used to pinpoint the lead molecule. Finally, molecular dynamics and MM/PBSA calculations were employed to validate the binding kinetics of the hit compound. Indeed, sinigrin was identified as a promising phytotoxic inhibitor against the ACCase enzyme. The findings of our study were well correlated with the existing experimental results. Overall, the current work will aid in the development of commercializing phytotoxin herbicides in foreseeable future.

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“…According to Gharde et al (2018), in India, the total actual economic loss of about Copyright © 2020 Universitas Sebelas Maret timorense, Panicum repens, Paspalum conygatum, Ottochloa nodosa, Echinochloa crusgalli, Imperata cylindrica and Setaria sp. (Arif et al, 2011;Anwar et al, 2012;Golmohammadi et al, 2018). The most widely found broad leaf weed species are Tridax procumbens (L.), Emilia sonchifolia D.C ex Wight, Ageratum conoyzoides L. and Synedrella nodiflora (L.) Gaertn (Tjitrosoedirjo et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

The Potensial of Fusarium sp. and Chaetomium sp. as Biological Control Agents of Five Broad-Leaf Weeds

Soesanto

Mugiastuti

Manan

2020

Caraka Tani J. Sustain. Agric.

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Weeds are a major problem in crop cultivation, either in food crops, horticulture, plantations or forests and cause a decrease in the quality and quantity of production. Weed biocontrol, especially by using plant pathogenic fungi, has received attention but is still lacking in application. The purpose of this study was to determine the potential of Fusarium sp. and Chaetomium sp. as biological control agents against five broad-leaf weeds (Asystasia gangetica L., Ageratum conyzoides L., Synendrella nodiflora (L.) Gaertn., Wedelia trilobata (L.) U.S. Hitchc. and Amaranthus spinosus L.). The variables observed were the incubation period, disease incidence, disease intensity, as well as weed fresh and dry weight. The results of this study showed that the two pathogenic fungi, Fusarium sp. and Chaetomium sp., can cause a more intensive disease in A. conizoides than A. spinosus. A. gangetica, S. nodiflora and W. trilobata; however, the fungi have not been able to inhibit the growth and kill the weeds. Therefore, improvement need to be done by modifying the media to increase the ability of fungi to control weeds.

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Study of Postharvest Weed Population in Paddy Fields

Cited by 3 publications

References 0 publications

Efficacy of Herbicides, Their Effects on Rice Yield Under Saturated Soil Condition

Efficacy of Herbicides, Their Effects on Rice Yield Under Saturated Soil Condition

Searching of Novel Herbicides for Paddy Field Weed Management—A Case Study with Acetyl-CoA Carboxylase

The Potensial of Fusarium sp. and Chaetomium sp. as Biological Control Agents of Five Broad-Leaf Weeds

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