Biology and control of Phalaris minor Retz. (littleseed canarygrass) in wheat

Singh, Samunder; Kirkwood, R. C.; Marshall, G.

doi:10.1016/s0261-2194(98)00090-8

Cited by 84 publications

(63 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A similar trend for these growth attributes at different sowing times and weed densities has been reported in earlier studies (Das and Yaduraju, 1999;Khaliq et al, 2013a,b). Singh et al (1999) have reported that LCG remained more dominant and competitive when wheat was sown late in the season. Delay in sowing wheat resulted in less TDM, which might be due to sub-optimal growing conditions during the vegetative growth phase (Farooq and Cheema, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The situation becomes worse in SD 2 because negative influence of competition goes further intensely due to poor establishment (Zimdahl, 2007). Negative effects of LCG are directly associated with density and its dominance increased under late-sown crop (Singh et al, 1999). Such negative impact on productive tillers affects grain yield because there is a strong correlation between two parameters.…”

Section: Discussionmentioning

confidence: 99%

“…According to Chhokar et al (2008), LCG is highly competitive and the season-long weed and its competition reduced the wheat yield by 45%. Singh et al (1999) have also concluded that canary grass remains more dominant and competitive in late-sown wheat crop. Although late-sowing of wheat is common in several Asian countries, including Pakistan, the present study however depicted that it not only decreased the growth and yield of wheat but also enhanced the weed interference.…”

mentioning

confidence: 94%

“…has been identified as the most pernicious and problematic grassy weed in wheat by virtue of its strong competitive behavior. It is a native weed of Mediterranean origin and has widely spread in more than 60 countries of the world (Singh et al, 1999). In recent decades, it has become a major threat to productivity and sustainability of wheat-based cropping systems (Chhokar et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Crop Growth and Yield Losses in Wheat Due to Little Seed Canary Grass Infestation Differ with Weed Densities and Changes in Environment

et al. 2017

View full text Add to dashboard Cite

-Understanding the weed interference with different sowing times of crop is inevitable for forecasting yield losses by weed infestation and designing sustainable weed management systems. A field experiment was carried out to evaluate the effects of sowing dates (20 th November, 10 th December) and various little seed canary grass (LCG) infestation levels (10, 20, 30 and 40 plant m -2 ) on growth and yield of wheat under semiarid conditions. Plots with two natural infestations of weeds including LCG (Unweeded control; UWC) and excluding LCG (UWC-LCG) were maintained for comparing its interference in pure stands with designated densities. A season-long weed-free (WFC) treatment was also run. All the weeds/ LCG infestation levels starting from 10 LCG plants m and UWC were comparable, however, these losses were much greater than UWC LCG. In crux, delay in sowing of wheat not only reduced the crop growth and yield but also enhanced the LCG/weed interference. Furthermore, greater competitive ability of LCG particularly for latesown wheat suggests that it should be controlled in order to provide healthy environment for crop plants.Keywords: interference, little seed canary grass, sowing time, weeds, wheat yield losses. Palavras-chave: interferência, pouca semente de alpiste, tempo de semeadura, plantas daninhas, perdas de rendimento de trigo. RESUMO -Entender a interferência de plantas daninhas com diferentes tempos

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Crop Growth and Yield Losses in Wheat Due to Little Seed Canary Grass Infestation Differ with Weed Densities and Changes in Environment

et al. 2017

View full text Add to dashboard Cite

show abstract

“…has been distributed throughout the world and described as a troublesome weed for wheat, barley, vegetables, rotational crops and several other winter crops (Singh et al, 1999;Jabran et al, 2010). P. minor can cause up to 95% of yield reduction in wheat (Chhokar and Sharma, 2008).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Fenoxaprop-P-Ethyl Resistant Littleseed Canarygrass (Phalaris minor) in Pakistan

Abbas¹,

Nadeem²,

Tanveer³

et al. 2016

Planta daninha

View full text Add to dashboard Cite

-To test resistance status of Phalaris minor (littleseed canary grass) to fenoxaprop-P-ethyl in Pakistan, a field survey was conducted during 2014. Uncontrolled P. minor plants were selected for seed collection from wheat fields where fenoxaprop-P-ethyl was used to control P. minor. Seeds were collected from eight different locations near Fasialabad, Pakistan. Susceptible plants were also selected near Faisalabad having no history of fenoxaprop-Pethyluse for comparison. These seeds were grown in pots for resistance confirmation using completely randomized design with factorial arrangement having four replicates. Four doses of fenoxaprop-P-ethylcontrol (0X), 46.9 (0.5X), 93.7 (1X) and 187 (2X) g a.i. ha -1 were sprayed at 3 to 4 leaf stage of P. minor. Three weeks after fenoxaprop-P-ethyl spray, percent mortality and biomass of different biotypes were recorded. Dose killing 50% plants (LD 50 ) and resistance index (RI) were calculated on the basis of percent mortality. Results revealed that out of eight biotypes (PM-FS-1, PM-FS-2, PM-FS-3, PM-FS-4, PM-FS-5, PM-FS-6, PM-FS-7 and PM-FS-8) four biotypes (PM-FS-1, PM-FS-2, PM-FS-6 and PM-FS-7) showed resistance to fenoxaprop-P-ethyl. Percent mortality for the resistant biotypes was 51 to 71% even at 2X. Resistance index of the resistant biotypes was 2.13-6.00. Biomass reductions were also significantly lesser in resistant biotypes. Evolution of P. minor resistance to fenoxaprop-Pethyl is first case of herbicide resistance in Pakistan. Research is needed to assess the infestation of herbicide resistant P. minor area in other locations and suggest control measures to evolve the effective management strategy to control the future spread of resistant biotypes.Keywords: ACCase-inhibiter, LD 50 , Phalaris minor, herbicide resistance, resistance index, survey. fenoxaprop-p-ethyl, controle (0X), 46,9 (0,5X), 93,7 (1X) RESUMO -

show abstract

References

2013

Weed Anatomy

View full text Add to dashboard Cite

Biology and control of Phalaris minor Retz. (littleseed canarygrass) in wheat

Cited by 84 publications

References 0 publications

Crop Growth and Yield Losses in Wheat Due to Little Seed Canary Grass Infestation Differ with Weed Densities and Changes in Environment

Crop Growth and Yield Losses in Wheat Due to Little Seed Canary Grass Infestation Differ with Weed Densities and Changes in Environment

Evaluation of Fenoxaprop-P-Ethyl Resistant Littleseed Canarygrass (Phalaris minor) in Pakistan

References

Contact Info

Product

Resources

About