Growth stage of Phalaris minor Retz. and wheat determines weed control and crop tolerance of four post-emergence herbicides

Rasool, Rubia; Bhullar, Makhan S.; Gill, Gurjeet

doi:10.5424/sjar/2017151-9728

Cited by 10 publications

(9 citation statements)

References 18 publications

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“…Thus, it appears that the growth stage of A. myosuroides determines the efficacy of pinoxaden application. Our findings are consistent with an earlier study in which pinoxaden provided high weed control only when applied no later than the three-tiller stage [ 29 ]. Consequently, the low efficacy of pinoxaden against A. myosuroides reported recently by Croatian farmers was most likely due to mismanagement issues, i.e., the delayed herbicide application when A. myosuroides is overgrown.…”

Section: Discussionsupporting

confidence: 93%

Growth Stage of Alopecurus myosuroides Huds. Determines the Efficacy of Pinoxaden

Pintar

Svečnjak

Šoštarčić

et al. 2021

Plants

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Alopecurus myosuroides Huds. is an important pinoxaden-resistant grass weed in many countries of Europe. Recently, the low efficacy of pinoxaden was reported in winter cereals in Croatia, but a preliminary dose–response trial showed no herbicide resistance for the investigated weed population. Therefore, a two-year experiment was conducted under greenhouse conditions to determine the efficacy of various pinoxaden doses (20, 40 and 80 g a.i. ha−1) on weed visual injuries and biomass reduction after herbicide application at different growth stages. As expected, the maximum weed biomass reduction (97.3%) was achieved by applying the highest dose (80 g a.i. ha−1) at the earliest growth stage (ZCK 12–14). A pinoxaden dose of 20 g a.i. ha−1 resulted in satisfactory weed biomass reduction (88.9%) only when applied at ZCK 12–14. The recommended dose (40 g a.i. ha−1) also provided sufficient weed control up to the growth stage ZCK 21–25. Slightly delayed (ZCK 31–32) application of the recommended dose brought about a low weed biomass reduction (60.1%). Double than the recommended dose also failed to provide satisfactory weed control at the advanced weed growth stages (ZCK 31–32 and ZCK 37–39). Thus, reported low efficacy of pinoxaden is most likely because of delayed herbicide application when A. myosuroides is overgrown.

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Section: Discussionsupporting

confidence: 93%

Growth Stage of Alopecurus myosuroides Huds. Determines the Efficacy of Pinoxaden

Pintar

Svečnjak

Šoštarčić

et al. 2021

Plants

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“…Safina and Absy (2017) herbicides and hand weeding twice) increases wheat yield 11.8 t ha -1 and yield components significantly compared to weedy check. Rasool et al, (2017) Manual hand weeding increases wheat grain yield 4.98 t ha -1 as compare to weedy check. Sasode et al, (2017) Manual two hand weeding @ 30 and 60 DAS resulted in increased grain yield of Wheat 4.66 t ha -1 .…”

Section: Weed Management Practicesmentioning

confidence: 99%

Studies on Chemical Weed Control in Wheat (Triticum aestivum L.) - A Review

Khose¹

2021

Int.J.Curr.Microbiol.App.Sci

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“…Herbicide was applied timely (30-35 days after sowing) to control P. minor in wheat crop in significantly higher number of farm fields (14) in high control environment (control more than 60%) ( Table 5). No significant difference was observed in farm field number in medium control environment (control between 50 to 60%) in respect of timely and late application of herbicide to control P. minor in wheat crop.…”

Section: Time Of Herbicide Applicationmentioning

confidence: 99%

“…Crop tolerance to herbicides and weed control efficacy varies with herbicide choice, application dose, application timing, and environmental conditions [13]. Sulfosulfuron and fenoxaprop plus metribuzin provided effective control of P. minor when applied at 14 days after sowing (DAS) and 21 DAS wheat stages, all four herbicides were equally effective when applied at 30 DAS, and only pinoxaden worked effectively at 45 DAS wheat stage [14].…”

Section: Time Of Herbicide Applicationmentioning

confidence: 99%

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A survey of Phalaris minor Retz. Management in Wheat in Trans-Gangetic Plains Region of India

Gill

2020

CJAST

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A survey was conducted to measure the extent of control of Littleseed canarygrass (Phalaris minor Retz.) in wheat crop in Ferozepur district in the state of Punjab (Trans-Gangetic Plains region) by Punjab Agricultural University Farmer Advisory Service Centre (FASC) Ferozepur during rabi 2018-19. The study aims to find out the causes of poor control of Phalaris minor in wheat crop on farm fields of farmers of Ferozepur district. 90 farm fields were selected randomly for collection of data. Survey data were analyzed using completely randomized design. Survey study revealed that sowings of wheat after first fortnight of November have significantly higher number of farm fields with medium control (control 50 to 60%) (3.0 farm fields) to low control (control less than 50%) (6.3 farm fields) environments of P. minor. High control environment (control more than 60%) has significantly higher number of farm fields (11.7) with less infestation of P. minor (population of P. minor less than 5 plants per square meter). However, in low control environments higher number of farm fields has population of P. minor 15 and more than 15 plants per square meter. P. minor appeared more in significantly higher number of farm fields (14.3), (3.7) and (7.7) in high control, medium control and less environment, respectively in the month of December. Significantly higher number of farm fields (16) used recommended herbicide to control P. minor in wheat crop in high control environment. However, farmers apply unrecommended herbicide in higher number of farm fields. Herbicide was applied timely to control P. minor in wheat crop in significantly higher number of farm fields (14) in high control environment. In low control environment farmers applied herbicide late to control P. minor in significantly higher number of farm fields (8.0). Farmers used right type of nozzle (Flat Fan and Flood Jet) to apply herbicide to control P. minor in significantly higher number (14) of farm fields in high control environment. Farmers used wrong type of nozzle to apply herbicide to control P. minor in more number of farm fields in medium control and less control environments. Optimum volume of water (150 litres of water per acre) was used to apply herbicide to control P. minor in wheat crop in significantly higher number of farm fields (17) in high control environment. Farmers used low volume of water (100 to 125 litres per acre) to apply herbicide to control P. minor in significantly higher number of farm fields (8.0) in low control environment. Farmers did not practice herbicide rotation in significantly higher number of farm fields 4.0 and 8.0 in medium control and low control respectively. P. minor inflorescence was not removed by farmers in significantly higher number of farm fields 4.0 and 8.0 in medium control and low control environments respectively. Inaproppropriate herbicide selection, method of application, delay in sowing of wheat and application of herbicide, lack of herbicide rotaion and non-removal of P.minor inflorescence were the reasons for poor control of P. minor in wheat crop.

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Growth stage of Phalaris minor Retz. and wheat determines weed control and crop tolerance of four post-emergence herbicides

Cited by 10 publications

References 18 publications

Growth Stage of Alopecurus myosuroides Huds. Determines the Efficacy of Pinoxaden

Growth Stage of Alopecurus myosuroides Huds. Determines the Efficacy of Pinoxaden

Studies on Chemical Weed Control in Wheat (Triticum aestivum L.) - A Review

A survey of Phalaris minor Retz. Management in Wheat in Trans-Gangetic Plains Region of India

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