Characterization of herbicide use and factors responsible for herbicide resistance in Phalaris minor in wheat in Haryana, India

2021 ◽  
pp. 105581
Author(s):  
Raghuveer Singh ◽  
Dharam Bir Yadav ◽  
Ashok Yadav ◽  
Satbir Singh Punia
Keyword(s):  
Herbicide Resistance ◽  
Phalaris Minor ◽  
Herbicide Use

scholarly journals Evaluation of Herbicide-Resistance Status on Populations of Littleseed Canarygrass (Phalaris Minor Retz.) from Southern Greece and Suggestions for their Effective Control

2012 ◽  
Vol 52 (3) ◽  
pp. 308-313 ◽  
Author(s):  
Ilias Travlos
Keyword(s):  
Herbicide Resistance ◽  
Resistance Index ◽  
Acetolactate Synthase ◽  
Effective Control ◽  
Cross Resistance ◽  
Resistance Mutations ◽  
Resistance Level ◽  
Phalaris Minor ◽  
Wide Range ◽  
Southern Greece

Evaluation of Herbicide-Resistance Status on Populations of Littleseed Canarygrass (Phalaris MinorRetz.) from Southern Greece and Suggestions for their Effective ControlIn 2010, a survey was conducted in the wheat fields of a typical cereal-producing region of Greece to establish the frequency and distribution of herbicide-resistant littleseed canarygrass (Phalaris minorRetz.). In total, 73 canarygrass accessions were collected and screened in a field experiment with several herbicides commonly used to control this weed. Most of the weed populations were classed as resistant (or developing resistance) to the acetyl-CoA varboxylase (ACCase)-inhibiting herbicide diclofop, while resistance to clodinafop was markedly lower. The results of the pot experiments showed that some of the canary populations were found to have a very high level of diclofop resistance (resistance index up to 12.4), while cross resistance with other herbicides was also common. The levels of resistance and cross resistance patterns among populations varied along with the different amounts and times of selection pressure. Such variation indicated either more than one mechanism of resistance or different resistance mutations in these weed populations. The population which had the highest diclofop resistance level, showed resistance to all aryloxyphenoxypropinate (APP) herbicides applied and non-ACCase inhibitors. Alternative ACCase-inhibiting herbicides, such as pinoxaden remain effective on the majority of the tested canarygrass populations, while the acetolactate synthase (ALS)-inhibiting herbicide mesosulfuron + iodosulfuron could also provide some solutions. Consequently, there is an opportunity to effectively control canarygrass by selecting from a wide range of herbicides. It is the integration of agronomic practices with herbicide application, which helps in effective management ofP. minorand particularly its resistant populations.

scholarly journals Inheritance and Molecular Characterization of a Novel Mutated AHAS Gene Responsible for the Resistance of AHAS-Inhibiting Herbicides in Rapeseed (Brassica napus L.)

2020 ◽  
Vol 21 (4) ◽  
pp. 1345
Author(s):  
Qianxin Huang ◽  
Jinyang Lv ◽  
Yanyan Sun ◽  
Hongmei Wang ◽  
Yuan Guo ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Molecular Characterization ◽  
Herbicide Resistance ◽  
Acetohydroxyacid Synthase ◽  
Cross Resistance ◽  
Single Point Mutation ◽  
Wild Type ◽  
Brassica Napus L ◽  
Herbicide Resistant

The use of herbicides is an effective and economic way to control weeds, but their availability for rapeseed is limited due to the shortage of herbicide-resistant cultivars in China. The single-point mutation in the acetohydroxyacid synthase (AHAS) gene can lead to AHAS-inhibiting herbicide resistance. In this study, the inheritance and molecular characterization of the tribenuron-methyl (TBM)-resistant rapeseed (Brassica napus L.) mutant, K5, are performed. Results indicated that TBM-resistance of K5 was controlled by one dominant allele at a single nuclear gene locus. The novel substitution of cytosine with thymine at position 544 in BnAHAS1 was identified in K5, leading to the alteration of proline with serine at position 182 in BnAHAS1. The TBM-resistance of K5 was approximately 100 times that of its wild-type ZS9, and K5 also showed cross-resistance to bensufuron-methyl and monosulfuron-ester sodium. The BnAHAS1544T transgenic Arabidopsis exhibited higher TBM-resistance than that of its wild-type, which confirmed that BnAHAS1544T was responsible for the herbicide resistance of K5. Simultaneously, an allele-specific marker was developed to quickly distinguish the heterozygous and homozygous mutated alleles BnAHAS1544T. In addition, a method for the fast screening of TBM-resistant plants at the cotyledon stage was developed. Our research identified and molecularly characterized one novel mutative AHAS allele in B. napus and laid a foundation for developing herbicide-resistant rapeseed cultivars.

The Effect of Labeling Herbicides with Their Site of Action: A Canadian Perspective

1999 ◽  
Vol 13 (3) ◽  
pp. 655-661 ◽  
Author(s):  
Hugh J. Beckie ◽  
Fa-Yan Chang ◽  
F. Craig Stevenson
Keyword(s):  
Public Sector ◽  
Herbicide Resistance ◽  
Crop Protection ◽  
Resistance Management ◽  
Extension Agents ◽  
Group Number ◽  
Site Of Action ◽  
Canadian Perspective ◽  
Group Rotation ◽  
Herbicide Use

Industry, public-sector researchers and extension agents, and growers were surveyed in 1998 to determine their perspectives on how labeling herbicides with their site of action (group number) would affect the herbicide use practices of growers. The crop protection industry in Canada represented by the Crop Protection Institute (CPI) generally supports herbicide resistance labeling but has some concerns regarding the wording of the labels, including the identification symbol. Most researchers and extension agents believe that labeling herbicides with their site of action will facilitate herbicide group rotation by growers who frequently use herbicides from the same group. Of the two-thirds of the 126 surveyed growers who were familiar with herbicide groupings, 58% practiced herbicide group rotation. Those who did not tended to lack understanding of the basis and purpose of herbicide classification. Grower responses were similar to those from the research and extension community, although only 29% of the growers who currently do not rotate herbicides from different groups believed that resistance management labeling would influence them.

Field and producer survey of ACCase resistant wild oat in Manitoba

1997 ◽  
Vol 77 (4) ◽  
pp. 709-715 ◽  
Author(s):  
Luc Bourgeois ◽  
Ian N. Morrison ◽  
David Kelner
Keyword(s):  
High Risk ◽  
Herbicide Resistance ◽  
Wild Oat ◽  
Medium Risk ◽  
Risk Areas ◽  
Resistance Assessment ◽  
Herbicide Use ◽  
Risk Categories ◽  
Weed Survey ◽  
Group 1

In a previous study, 729 townships in Manitoba were differentiated as being at low, medium, or high risk of evolving wild oat resistant to Group 1 herbicides based on herbicide use histories from 1981 to 1993. In the present study, 16 townships representing the three risk categories were surveyed in 1994 in order to determine the percentage of resistant wild oat patches. As well, a questionnaire was mailed to farmers in these townships requesting information on practices and attitudes relating to herbicide resistance. The wild oat survey consisted of sampling seed from conspicuous wild oat patches visible from north-south roads in each township. A total of 533 samples were collected and screened with fenoxaprop-P and sethoxydim using a bioassay. An average of eight resistant wild oat patches was found in the high risk townships. This was significantly higher than in low and medium risk townships where an average of less than one resistant wild oat patch per township was detected. The attitude of producers towards herbicide resistance was similar in all risk categories. However, the number of respondents suspecting Group 1 resistance on their farms was related to risk categories with producers in high risk areas suspecting the most cases of resistance. Key words: Weed survey, resistance assessment, wild oat, ACCase inhibitors

scholarly journals Characterization of the herbicide-resistance gene bar from Streptomyces hygroscopicus

1987 ◽  
Vol 6 (9) ◽  
pp. 2519-2523 ◽  
Author(s):  
Charles J. Thompson ◽  
N. Rao Movva ◽  
Richard Tizard ◽  
Reto Crameri ◽  
Julian E. Davies ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Herbicide Resistance ◽  
Streptomyces Hygroscopicus ◽  
Herbicide Resistance Gene

scholarly journals Effect of herbicide resistance on seed physiology of Phalaris minor (littleseed canarygrass)

2015 ◽  
Vol 93 (3) ◽  
pp. 661 ◽  
Author(s):  
Jesús R. Torres-García ◽  
Ebandro Uscanga-Mortera ◽  
Carlos Trejo ◽  
Víctor Conde-Martínez ◽  
Josue Kohashi-Shibata ◽  
...  
Keyword(s):  
Herbicide Resistance ◽  
Phalaris Minor ◽  
Seed Physiology

Characterization of Wild Oat (Avena fatuaL.) Populations and an Inbred Line with Multiple Herbicide Resistance

Weed Science ◽  
1996 ◽  
Vol 44 (4) ◽  
pp. 847-852 ◽  
Author(s):  
Anthony J. Kern ◽  
Corey T. Colliver ◽  
Bruce D. Maxwell ◽  
Peter K. Fay ◽  
William E. Dyer
Keyword(s):  
Inbred Line ◽  
Herbicide Resistance ◽  
Dose Response ◽  
Petri Dish ◽  
Wild Oat ◽  
Repeated Use ◽  
Sufficient Magnitude ◽  
Multiple Herbicide Resistance

Repeated use of the preemergence herbicide triallate has selected for wild oat populations that are resistant (R) to field use rates. Field collections and an inbred R line were shown in greenhouse and petri dish dose response experiments to be 6- to 20-fold more tolerant to triallate than susceptible (S) lines. R populations and the inbred line were also resistant (8-fold) to the related thiocarbamate herbicide diallate, as well as to the chemically unrelated postemergence herbicide difenzoquat (60-fold).14C-triallate uptake and translocation patterns were similar between R and S lines for the first 24 h after application. However, translocation of radioactivity was more rapid in S lines than R lines from 24 through 60 h after application.14C-difenzoquat uptake was the same in R and S lines 12 h after application, but was 10 to 20% higher in R lines than S lines by 24 through 96 h after application. Similarly, translocation of radioactivity after14C-difenzoquat application was 7 to 14% greater in R than S lines after 12 h, although translocated radioactivity amounts were not significantly different between R and S lines. The relatively minor differences in triallate and difenzoquat uptake and translocation patterns between R and S lines are most likely not of sufficient magnitude to explain the observed resistance levels.

Characterization of a waterhemp (Amaranthus tuberculatus) population from Illinois resistant to herbicides from five site-of-action groups

2019 ◽  
Vol 33 (03) ◽  
pp. 400-410 ◽  
Author(s):  
Cody M. Evans ◽  
Seth A. Strom ◽  
Dean E. Riechers ◽  
Adam S. Davis ◽  
Patrick J. Tranel ◽  
...  
Keyword(s):  
Field Experiments ◽  
Acetolactate Synthase ◽  
Resistance Mechanisms ◽  
Synthetic Auxin ◽  
Amaranthus Tuberculatus ◽  
Resistance To Herbicides ◽  
Central Illinois ◽  
Sites Of Action ◽  
Herbicide Use

AbstractExperiments were initiated to characterize a waterhemp population (CHR) discovered in a central Illinois corn field after it was not controlled by the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor topramezone. Field experiments conducted during 2014–2015 indicated that acetolactate synthase (ALS)-, protoporphyrinogen oxidase (PPO)-, photosystem II (PSII)-, and HPPD-inhibiting herbicides and the synthetic auxin 2,4-D did not control the CHR population. Laboratory experiments confirmed target site–based resistance mechanisms to ALS- and PPO-inhibiting herbicides. Herbicide doses required to reduce dry biomass 50% (GR50) were determined in greenhouse dose–response experiments, and indicated 16-fold resistance to the HPPD inhibitor mesotrione, 9.5-fold resistance to the synthetic auxin 2,4-D, and 252-fold resistance to the PSII inhibitor atrazine. Complementary results from field, laboratory, and greenhouse investigations indicate that the CHR population has evolved resistance to herbicides from five sites of action (SOAs): ALS-, PPO-, PSII-, and HPPD-inhibiting herbicides and 2,4-D. Herbicide use history for the field in which CHR was discovered indicates no previous use of 2,4-D.

Molecular Characterization of Herbicide Resistance in Echinochloa Spp.

1997 ◽  
pp. 199-205 ◽  
Author(s):  
N. Lopez-Martinez ◽  
R. P. Finch ◽  
G. Marshall ◽  
R. De Prado
Keyword(s):  
Molecular Characterization ◽  
Herbicide Resistance
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