scholarly journals Resistance to tembotrione, a 4- Hydroxyphenylpyruvate Dioxygenase-Inhibitor in Sorghum bicolor

2020 ◽  
Author(s):  
Balaji Aravindhan Pandian ◽  
Aruna Varanasi ◽  
Amaranatha R. Vennapusa ◽  
Rajendran Sathishraj ◽  
Guifang Lin ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Broad Spectrum ◽  
Grain Sorghum ◽  
Metabolic Resistance ◽  
Genetic Analyses ◽  
Breeding Lines ◽  
Polygenic Trait ◽  
Sorghum Genotypes ◽  
High Level

AbstractPostemergence grass weed control continues to be a big challenge in grain sorghum (Sorghum bicolor L. Moench), primarily due to a lack of herbicide options registered for use in this crop. The development of herbicide-resistant sorghum technology to facilitate broad-spectrum postemergence weed control is an economical and viable solution. The 4-hydroxyphenylpyruvate dioxygenase-inhibitor herbicides (e.g. mesotrione or tembotrione) can control broad-spectrum of weeds including grasses, which, however, is not registered for postemergence application in sorghum due to crop injury. In this study we identified two tembotrione-resistant sorghum genotypes (G-200, G-350) and one highly susceptible genotype (S-1) through screening 317 sorghum lines from the sorghum association panel (SAP). Compared to S-1, G-200 and G-350 exhibited 10- and 7-fold more resistance to tembotrione, respectively. Genetic analyses of the F1 and F2 progeny generated from a cross between tembotrione-resistant and -susceptible genotypes demonstrated that the resistance is a semi-dominant polygenic trait. Furthermore, cytochrome P450 (CYP)-inhibitor assay using malathion and piperonyl butoxide suggested possible CYP-mediated metabolism of tembotrione in G-200 and G-350. Genotype-by-sequencing based quantitative trait loci (QTL) mapping revealed eight QTLs associated with tembotrione resistance in grain sorghum. Sorghum genotypes G-200 and G-350 confer a high level of metabolic resistance to tembotrione and controlled by a polygenic trait. There is an enormous potential to introgress the tembotrione resistance into breeding lines to develop agronomically desirable sorghum hybrids.One-sentence summaryThis research focuses on characterization, genetic analyses, identification of QTLs-linked to metabolic resistance to tembotrione in Sorghum bicolor, for improved weed control and increased yield

scholarly journals Characterization, Genetic Analyses, and Identification of QTLs Conferring Metabolic Resistance to a 4-Hydroxyphenylpyruvate Dioxygenase Inhibitor in Sorghum (Sorghum bicolor)

2020 ◽  
Vol 11 ◽  
Author(s):  
Balaji Aravindhan Pandian ◽  
Aruna Varanasi ◽  
Amaranatha R. Vennapusa ◽  
Rajendran Sathishraj ◽  
Guifang Lin ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Broad Spectrum ◽  
Metabolic Resistance ◽  
Genetic Analyses ◽  
Breeding Lines ◽  
Polygenic Trait ◽  
Genotype By Sequencing ◽  
Sorghum Genotypes ◽  
High Level

Postemergence grass weed control continues to be a major challenge in grain sorghum [Sorghum bicolor (L.) Moench], primarily due to lack of herbicide options registered for use in this crop. The development of herbicide-resistant sorghum technology to facilitate broad-spectrum postemergence weed control can be an economical and viable solution. The 4-hydroxyphenylpyruvate dioxygenase-inhibitor herbicides (e.g., mesotrione or tembotrione) can control a broad spectrum of weeds including grasses, which, however, are not registered for postemergence application in sorghum due to crop injury. In this study, we identified two tembotrione-resistant sorghum genotypes (G-200, G-350) and one susceptible genotype (S-1) by screening 317 sorghum lines from a sorghum association panel (SAP). These tembotrione-resistant and tembotrione-susceptible genotypes were evaluated in a tembotrione dose–response [0, 5.75, 11.5, 23, 46, 92 (label recommended dose), 184, 368, and 736 g ai ha–1] assay. Compared with S-1, the genotypes G-200 and G-350 exhibited 10- and seven fold more resistance to tembotrione, respectively. To understand the inheritance of tembotrione-resistant trait, crosses were performed using S-1 and G-200 or G-350 to generate F1 and F2 progeny. The F1 and F2 progeny were assessed for their response to tembotrione treatment. Genetic analyses of the F1 and F2 progeny demonstrated that the tembotrione resistance in G-200 and G-350 is a partially dominant polygenic trait. Furthermore, cytochrome P450 (CYP)-inhibitor assay using malathion and piperonyl butoxide suggested possible CYP-mediated metabolism of tembotrione in G-200 and G-350. Genotype-by-sequencing based quantitative trait loci (QTL) mapping revealed QTLs associated with tembotrione resistance in G-200 and G-350 genotypes. Overall, the genotypes G-200 and G-350 confer a high level of metabolic resistance to tembotrione and controlled by a polygenic trait. There is an enormous potential to introgress the tembotrione resistance into breeding lines to develop agronomically desirable sorghum hybrids.

Reducing Herbicide Injury to Sorghum with Crop Protectants

Weed Science ◽  
1973 ◽  
Vol 21 (6) ◽  
pp. 531-536 ◽  
Author(s):  
R. F. Spotanski ◽  
O. C. Burnside
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Broad Spectrum ◽  
Seed Treatment ◽  
Field Studies ◽  
Treated Seed

Greenhouse and field studies were used to evaluate crop protectants with herbicides in order to obtain selective, broad-spectrum weed control in sorghum [Sorghum bicolor(L.) Moench ‘RS 626’]. Of the herbicides evaluated alachlor [2-chloro-2′,6′-diethyl-N-(methoxymethyl) acetanilide] was the only one causing sorghum injury that could be moderated with crop protectants. The crop protectant anhydride (1,8-napthalic anhydride) was most effective in reducing alachlor injury when applied as a seed treatment at 0.5% (w/w). Storage of anhydride-treated seed for 1 year did not increase anhydride damage to sorghum seedlings. Preplant applications of alachlor, incorporated into the soil, caused four times more injury to sorghum than did the same rate applied preemergence. Combinations of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] and alachlor did not increase sorghum injury or alter the effects of the crop protectants. In the field, anhydride was the most effective crop protectant used. Crop protectant R-28725 (2,2-dimethyl-3-dichloroacetyloxazolidine) at 0.5% w/w to sorghum seed and at 0.6 kg/ha as a tank mix was effective in reducing sorghum injury at the lower alachlor rates. Crop protectant R-25788 (N,N-diallyl-2,2-dichloroacetamide) was the least effective of those studied; however, seed treatment at 0.5% w/w was more effective than the tank mixes.

Preplant Weed Control in a Ridge-Till Soybean (Glycine max) and Grain Sorghum (Sorghum bicolor) Rotation

1989 ◽  
Vol 3 (4) ◽  
pp. 621-626 ◽  
Author(s):  
David L. Regehr ◽  
Keith A. Janssen
Keyword(s):  
Glycine Max ◽  
Sorghum Bicolor ◽  
Weed Control ◽  
Grain Sorghum ◽  
Planting Time ◽  
Common Lambsquarters ◽  
Weed Growth ◽  
Herbicide Treatments ◽  
Dry Down ◽  
Sorghum Grain

Research in Kansas from 1983 to 1986 evaluated early preplant (30 to 45 days) and late preplant (10 to 14 days) herbicide treatments for weed control before ridge-till planting in a soybean and sorghum rotation. Control of fall panicum and common lambsquarters at planting time averaged at least 95% for all early preplant and 92% for late preplant treatments. Where no preplant treatment was used, heavy weed growth in spring delayed soil dry-down, which resulted in poor ridge-till planting conditions and reduced plant stands, and ultimately reduced sorghum grain yields by 24% and soybean yields by 12%. Horsenettle population declined significantly, and honeyvine milkweed population increased. Smooth groundcherry populations fluctuated from year to year with no overall change.

Weed Control and Grain Sorghum (Sorghum bicolor) Response to Postemergence Applications of Atrazine, Pendimethalin, and Trifluralin1

2005 ◽  
Vol 19 (4) ◽  
pp. 999-1003 ◽  
Author(s):  
W. JAMES GRICHAR ◽  
BRENT A. BESLER ◽  
KEVIN D. BREWER
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Grain Sorghum

Resistance to sorghum midge (Contarinia sorghicola Coquillet) in grain sorghum

1979 ◽  
Vol 19 (96) ◽  
pp. 97 ◽  
Author(s):  
FD Page
Keyword(s):  
Sorghum Bicolor ◽  
Seed Set ◽  
Grain Sorghum ◽  
Breeding Program ◽  
Contarinia Sorghicola ◽  
Breeding Lines ◽  
Sorghum Midge

Standardized levels of infestation of sorghum midge Contarinia sorghicola Coquillet were used to compare the levels of resistance in sorghum cultivars (Sorghum bicolor) in glasshouse experiments at Biloela in Central Queensland. Sorghum heads were reduced to 250 florets and ten female midges were caged over each head on three consecutive days during anthesis. Two breeding lines from the U.S.A., IS 12608C and IS 12664C were superior (P < 0.01) to Alpha and KS 19 in percentage seed set and number of midge progeny produced. The percentage seed set was 50, 54, 22, 12 for IS 12608C, IS 1664C, Alpha and KS 19, respectively. The Indian line Q 13828 was susceptible. Testing with a standardized level of infestation is a useful technique for screening parents in a breeding program aimed at incorporation of midge resistance into agronomically useful hybrid cultivars.

CHEMICAL WEED MANAGEMENT IN GRAIN SORGHUM AND SELECTIVITY OF ATRAZINE + S-METOLACHLOR TO DIFFERENT HYBRIDS

2018 ◽  
Vol 17 (3) ◽  
pp. 460
Author(s):  
HUDSON KAGUEYAMA TAKANO ◽  
AUGUSTO KALSING ◽  
DAURI APARECIDO FADIN ◽  
ROGERIO SILVA RUBIN ◽  
RODRIGO NEVES ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Weed Management ◽  
Herbicide Tolerance ◽  
Field Trials ◽  
Grain Sorghum ◽  
Efficacy And Safety ◽  
Cereal Crop ◽  
Weed Interference ◽  
Herbicide Alternatives

  ABSTRACT - Grain sorghum (Sorghum bicolor) is one cereal crop that faces huge problems with weed interference mostly because the lack of selective herbicides. This study aimed to assess the efficacy and safety of herbicide alternatives for weed control in grain sorghum as well as the selectivity of atrazine + s-metolachlor to different hybrids. Three field trials were designed as a randomized complete block with four replications. All experiments were conducted in Jardinópolis-SP and Mogi Mirim-SP during the 2015/16 growing season. Two trials included acetochlor, flumioxazin, fluroxypyr, mesotrione and s-metolachlor, applied in pre or post-emergence, in association or not with atrazine. A third trial was carried out with rates of the premix containing atrazine + s-metolachlor applied to the following hybrids: 1G100, 1G220, 1G230, 1G244, 1G282, 50A10, 50A40, 50A50 and 50A70. The pre‑emergence herbicides that exhibited satisfactory efficacy of weed control and selectivity to sorghum crop were flumioxazin, atrazine + mesotrione and atrazine + s-metolachlor. For post‑emergence, atrazine, atrazine + acetochlor, atrazine + s-metolachlor and atrazine + fluroxypyr were the best treatments for both efficacy and selectivity. The application of atrazine + s-metolachlor at the evaluated rates was considered selective to the nine hybrids assessed.Keywords: acetochlor, fluroxypyr, mesotrione, herbicide tolerance, weed control. MANEJO QUÍMICO DE PLANTAS DANINHAS EM SORGO GRANÍFERO E SELETIVIDADE DE ATRAZINE + S-METOLACHLOR PARA DIFERENTES HÍBRIDOS RESUMO – O sorgo granífero (Sorghum bicolor) é um dos cereais de verão que mais enfrenta problemas com plantas daninhas em razão da interferência destas espécies e carência de herbicidas para controlá-las. O objetivo deste estudo foi avaliar a eficácia e segurança de herbicidas alternativos no controle de plantas daninhas em sorgo granífero, assim como a seletividade de atrazine + s-metolachlor para diferentes híbridos. Três experimentos foram realizados em campo com delineamento de blocos ao acaso e quatro repetições, sendo conduzidos em Jardinópolis-SP e/ou Mogi Mirim-SP, ao longo da safra 2015/16. Em dois experimentos, acetochlor, flumioxazin, fluroxypyr, mesotrione e s-metolachlor foram avaliados em pré e/ou pós-emergência da cultura, em associação ou não (isolados) com atrazine. O terceiro experimento foi realizado com doses crescentes de atrazine + s-metolachlor e os híbridos de sorgo granífero 1G100, 1G220, 1G230, 1G244, 1G282, 50A10, 50A40, 50A50 e 50A70. Os tratamentos com controle satisfatório de plantas daninhas e seletividade à cultura, em pré-emergência, foram flumioxazin, atrazine + mesotrione e atrazine + s-metolachlor. Em pós-emergência, eles foram atrazine, atrazine + acetochlor, atrazine + s-metolachlor e atrazine + fluroxipyr. A aplicação de atrazine + s-metolachlor nas doses testadas foi seletiva para os nove híbridos avaliados.Palavras-chave: acetochlor, fluroxypyr, mesotrione, tolerância a herbicidas, controle de plantas daninhas. metolachlor at the evaluated rates was selective to the nine hybrids assessed.

Soybean(Glycine max)and Grain Sorghum(Sorghum bicolor)Tolerance to Residues of Tetrafluron and Fluometuron

Weed Science ◽  
1978 ◽  
Vol 26 (6) ◽  
pp. 533-538
Author(s):  
D. L. Reasons ◽  
L. S. Jeffery ◽  
T. C. McCutchen
Keyword(s):  
Glycine Max ◽  
Sorghum Bicolor ◽  
Weed Control ◽  
Grain Sorghum ◽  
Yield Reduction ◽  
Waiting Period ◽  
Broadcast Application ◽  
Rainfall Frequency ◽  
Area Basis ◽  
Significant Yield

Fluometuron [1,1-dimethyl-3-(α,α,α-trifluoro-m-tolyl)urea] and tetrafluron {N,N-dimethyl-N′-[3-(1,1,2,2-tetrafluoroethoxy) phenyl] urea} are two urea-type herbicides for weed control in cotton(Gossypium hirsutumL.). In some years, because of cotton stand failure, an alternate crop must be established. Soybeans [Glycine max(L.) Merr.] and grain sorghum [Sorghum bicolor(L.) Moench] are possible alternate crops if they can withstand the residues left from herbicides used for weed control in cotton. Soybeans and grain sorghum were planted 3, 6 and 9 weeks after fluometuron and tetrafluron applications to soil at Knoxville and Milan, Tennessee, in 1975 and 1976. Tetrafluron residues were more toxic to grain sorghum and soybeans than were fluometuron residues. Grain sorghum was less susceptible than soybeans to both herbicides. Grain sorghum was planted 3 weeks after fluometuron (1.7 kg/ha) and tetrafluron (1.7 kg/ha) applications without severe yield reduction. Soybeans were planted in non-treated soil between banded tetrafluron (1.7 kg/ha on a treated area basis), 3 weeks after herbicide application, without significant yield reduction; but when a seedbed was prepared, a 9-week waiting period was required. When soybeans were planted into soil receiving a broadcast application of tetrafluron (1.7 kg/ha), a 9-week waiting period was not sufficient to reduce the residues to a non-toxic level. Soybeans planted 6 and 9 weeks following a broadcast application of fluometuron may or may not sustain yield reduction depending on rainfall frequency and intensity and soil type.

Weed-Control Evaluations in Ratoon-Cropped Grain Sorghum (Sorghum bicolor)

Weed Science ◽  
1983 ◽  
Vol 31 (2) ◽  
pp. 254-258
Author(s):  
Philip A. Banks ◽  
Ronny R. Duncan
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Grain Sorghum ◽  
Grain Yields ◽  
Annual Grasses ◽  
Residual Herbicide

Weed-control evaluations in ratoon-cropped grain sorghum [Sorghum bicolor(L.) Moench.] indicated that acceptable broadleaf weed control (>80%) in the second crop could be achieved by the use of a contact herbicide plus a residual herbicide applied after first harvest. Annual grasses, especially volunteer grain sorghum, were controlled in the second crop with metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] plus propazine [2-chloro-4,6-bis(isopropylamino)-s-triazine] applied preemergence at planting and followed by metolachlor, cyanazine {2-[[4-chloro-6-(ethylamino)-s-triazin-2-yl] amino]-2-methylpropionitrile}, or pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine] applied after first harvest. Second-crop grain yields were not adversely affected by any treatments, and it appeared that satisfactory weed control in the first crop lessened the need for a residual herbicide in the second crop.

Roller Applicator for Shattercane (Sorghum bicolor) Control in Row Crops

Weed Science ◽  
1982 ◽  
Vol 30 (3) ◽  
pp. 301-306 ◽  
Author(s):  
Gregory L. Schneider ◽  
Curt B. Koehler ◽  
James S. Schepers ◽  
Orvin C. Burnside
Keyword(s):  
Glycine Max ◽  
Sorghum Bicolor ◽  
Weed Control ◽  
Field Experiments ◽  
Grain Sorghum ◽  
Row Crops ◽  
Crop Injury

Greenhouse and field experiments were conducted with a roller applicator at Lincoln, Nebraska, during 1979 and 1980. Glyphosate [N-(phosphonomethyl)glycine] concentrations of 5, 10, and 20% and carpet saturations of 50 and 75% controlled shattercane [Sorghum bicolor(L.) Moench] when applied to the top 30 cm of the plant in greenhouse research. In the field, glyphosate concentrations of 5 to 20% with a carpet saturation of 50% controlled shattercane acceptably in soybeans [Glycine max(L.) Merr.], but a concentration of 2.5% with 25% carpet saturation did not. Weed control was comparable whether speed of application was 3.2, 6.4, or 9.6 km/h. Shattercane control in grain sorghum [Sorghum bicolor(L.) Moench.] was excellent at glyphosate concentrations of 5, 10, and 20% and at carpet saturations of 50 and 75%, and sorghum injury was minimal at 25 and 50% carpet saturations. The roller applicator was compared to a ropewick applicator for shattercane control in sorghum. Excellent weed control (90% or greater) with minimal crop injury was obtained with the roller applicator at glyphosate concentrations of 10 and 20% at application speeds of 3.2 and 6.4 km/h and with the ropewick applicator with glyphosate concentrations of 35 and 50% applied at 3.2, 6.4, and 9.6 km/h.

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