Flufenacet controls multiple herbicide resistant Phalaris minor Retz. in wheat

2019 ◽  
Vol 121 ◽  
pp. 127-131
Author(s):  
Rubia Rasool ◽  
Makhan S. Bhullar ◽  
Manpreet Singh ◽  
Gurjeet S. Gill
Keyword(s):  
Phalaris Minor ◽  
Herbicide Resistant

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

2016 ◽  
Vol 34 (4) ◽  
pp. 833-838 ◽  
Author(s):  
T. ABBAS ◽  
M.A. NADEEM ◽  
A. TANVEER ◽  
R. AHMAD
Keyword(s):  
Resistance Index ◽  
Control Measures ◽  
Phalaris Minor ◽  
Seed Collection ◽  
Herbicide Resistant ◽  
First Case ◽  
Randomized Design ◽  
Percent Mortality ◽  
History Of ◽  
Canary Grass

ABSTRACT 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-P-ethyluse 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 (LD50) 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-P-ethyl 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.

Role of allelopathic crop mulches and reduced doses of tank-mixed herbicides in managing herbicide-resistant Phalaris minor in wheat

2018 ◽  
Vol 110 ◽  
pp. 245-250 ◽  
Author(s):  
Tasawer Abbas ◽  
Muhammad Ather Nadeem ◽  
Asif Tanveer ◽  
Hafiz Haider Ali ◽  
Naila Farooq
Keyword(s):  
Phalaris Minor ◽  
Herbicide Resistant

scholarly journals Exploring the Herbicidal and Hormetic Potential of Allelopathic Crops Against Fenoxaprop-Resistant Phalaris minor

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
T. ABBAS ◽  
M.A. NADEEM ◽  
A. TANVEER ◽  
H.H. ALI ◽  
M.E. SAFDAR ◽  
...  
Keyword(s):  
Growth Traits ◽  
Aqueous Extracts ◽  
Production Potential ◽  
Phalaris Minor ◽  
Herbicide Resistant ◽  
Dry Biomass ◽  
Series Of Experiments ◽  
Chemical Strategies ◽  
Positive Effect ◽  
Biomass Reduction

ABSTRACT: Recent increases in the development of herbicide resistance in Phalaris minor worldwide demand alternative non-chemical strategies to control this weed. A series of experiments were conducted under laboratory and greenhouse conditions to explore the herbicidal potential of four allelopathic crops, including maize, rice, sorghum and sunflower, at different concentrations of aqueous extracts (2.5% and 5%), residues (1%, 2% and 4%) and mulches (4, 8, and 12 ton ha-1) against fenoxaprop-resistant P. minor. Aqueous extracts, residues and mulches provided 86-100%, 73-100% and 16-40% control of this resistant weed biotype, respectively. The dry biomass reduction due to aqueous extracts, residues and mulches was 48-100%, 48-100% and 20-54%, respectively. Mulches also caused 17-41% reduction in the seed production potential of P. minor. Lower concentrations of allelochemicals showed hormesis (positive effect) against some emergence and growth traits of P. minor. The phytotoxic chemicals of these four crops have a strong herbicidal potential against herbicide-resistant P. minor, and can be used as an organic alternative to control herbicide resistant P. minor, thus ensuring a sustainable wheat production.

Control of herbicide resistant Phalaris minor by pyroxasulfone in wheat

2019 ◽  
Vol 51 (2) ◽  
pp. 123
Author(s):  
Tarundeep Kaur ◽  
M.S. Bhullar ◽  
Simerjeet Kaur
Keyword(s):  
Phalaris Minor ◽  
Herbicide Resistant

Management of herbicide resistant Phalaris minor through sequential application of pre- and post-emergence herbicides in wheat

2020 ◽  
Vol 52 (2) ◽  
pp. 190
Author(s):  
Abdull Raseed ◽  
S.S. Punia ◽  
Manjeet ◽  
Kumarsein ◽  
Sushil Punia
Keyword(s):  
Phalaris Minor ◽  
Herbicide Resistant

scholarly journals Assessing Genetic Variation and Spread of Phalaris minor Resistant to ACCase Inhibiting Herbicides in Iran

2020 ◽  
Vol 38 ◽  
Author(s):  
J. GHEREKHLOO ◽  
R. ALCÁNTARA-DE LA CRUZ ◽  
M.D. OSUNA ◽  
S. SOHRABI ◽  
R. PRADO
Keyword(s):  
Genetic Variation ◽  
Genetic Relationships ◽  
Ecological Factors ◽  
Inter Simple Sequence Repeat ◽  
Phalaris Minor ◽  
Herbicide Resistant ◽  
Seed Dispersion ◽  
Inhibitor Resistance ◽  
Grass Weed ◽  
Simple Sequence

ABSTRACT: Littleseed canarygrass (Phalaris minor) is the second most serious and problematic grass weed in wheat fields in Iran, and has developed resistance to ACCase inhibiting herbicides. Inter-simple sequence repeat (ISSR) analysis was used to assess genetic variation between and within ACCase inhibitor-resistant and susceptible P. minor populations in Iran and to determine the origin of resistance and its dispersal. Sixteen P. minor populations from different regions in Iran were analysed using seven primers. Genetic relationships generated using UPGMA analysis indicated the presence of more than one genotype among the herbicide resistant populations. The results indicated that the high genetic similarity and physical proximity among the resistant P. minor populations in the different regions is mainly due to cross pollination, mechanical seed dispersion and local ecological factors. These findings suggested that independent selection as well as movement of resistant seeds had occurred, which could explain the presence and dispersion of ACCase inhibitor-resistance in these populations.

Management of Isoproturon-Resistant Phalaris minor in Wheat by Alternate Herbicides under Tarai Region Conditions

2019 ◽  
Vol 10 (3) ◽  
Author(s):  
Prinsa ◽  
Hem C. Joshi ◽  
Babita Joshi ◽  
S.K. Guru
Keyword(s):  
Phalaris Minor

Cloning of New Herbicide Resistant Gene in Soil Metagenomics and Generation of Transgenic Rice Plants

2014 ◽  
Vol 40 (7) ◽  
pp. 1190
Author(s):  
Yun-Peng WANG ◽  
Jing-Yong MA ◽  
Rui MA ◽  
Jian MA ◽  
Wen-Guo LIU
Keyword(s):  
Transgenic Rice ◽  
Herbicide Resistant ◽  
Rice Plants ◽  
Resistant Gene ◽  
Transgenic Rice Plants ◽  
Soil Metagenomics

IMPACT OF WHEAT ESTABLISHMENT METHODS AND WEED MANAGEMENT PRACTICES ON WEED FLORA, YIELD AND NUTRIENT UPTAKE OF WHEAT IN RICE-WHEAT CROPPING SYSTEM

2019 ◽  
Vol 6 (02) ◽  
Author(s):  
MOHAN SINGH ◽  
OMBIR SINGH ◽  
ROHITASAV SINGH
Keyword(s):  
Nutrient Uptake ◽  
Weed Management ◽  
Conventional Tillage ◽  
Research Centre ◽  
Zero Tillage ◽  
Phalaris Minor ◽  
Weed Population ◽  
Metsulfuron Methyl ◽  
Transplanted Rice ◽  
Weed Flora

A field experiment was conducted at the Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology Pantnagar, Udham Singh Nagar during continuous two years to study the weed flora, yield and nutrient uptake of wheat (Triticum aestivum L.) under different wheat establishment methods in main plots and seven weed management in sub plots. Phalaris minor was the most dominant weed at 60 DAS contributed 55.0 per cent of total weed population. Melilotusindica was the major non grassy weeds in wheat which contributed 11 per cent to total weed population during respective years. Sowing of wheat with zero tillage significantly reduced the Phalaris minor density as compared to conventionally tilled wheat after transplanted rice, 60 per cent Phalaris minor emerged from 0-3 cm in reduced and conventional tillage where as in zero tillage after transplanted rice there was 55 per cent emergence from 0-3 cm layer.The highest grain yield was obtained in two hand weedings done at 30 and 60 DAS and was at par with Isoproturon 1.0 kg ha-1 + Metsulfuron methyl 4 g ha-1 at 30 DAS and Clodinafop – Propargyl 60 g ha-1 at 30 DAS fb. Metsulfuron methyl 4 g ha-1 at 37 DAS. Zero tillage resulted in significantly higher uptake of NPK by wheat plants as compared to conventional tillage, whereas reduced tillage recorded minimum NPK, which was significantly lower over the other treatments of wheat establishment methods.

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