Weed Technology最新文献_第5页

Growth and Yield Response of Peanut to Simulated Drift of Glufosinate at Vegetative and Reproductive Growth Stages 花生营养生长期和生殖生长期对草铵膦模拟漂移的生长和产量响应

3区农林科学

Weed Technology Pub Date : 2023-11-06 DOI: 10.1017/wet.2023.81

Olumide S. Daramola, Navjot Singh, Joseph E. Iboyi, Pratap Devkota

{"title":"Growth and Yield Response of Peanut to Simulated Drift of Glufosinate at Vegetative and Reproductive Growth Stages","authors":"Olumide S. Daramola, Navjot Singh, Joseph E. Iboyi, Pratap Devkota","doi":"10.1017/wet.2023.81","DOIUrl":"https://doi.org/10.1017/wet.2023.81","url":null,"abstract":"Abstract The increased incidence of glyphosate-resistant weeds has led to an exponential increase in the use of glufosinate in glufosinate-resistant corn, cotton, and soybean. Field experiments were conducted in 2021 and 2022 to evaluate peanut response to glufosinate at 25 and 60 d after planting, corresponding to vegetative (V3) and reproductive (R4) growth stages, at 1.2, 4.7, 18.9, 75.5, and 302 g ai ha -1 representing 1/514 to 1/2 of the labeled rate of 604 g ha -1 . Peanut injury and canopy and yield reductions from glufosinate were <10% when applied at 1.2, 4.7, and 18.9 g ha -1 . However, at 75.5 and 302 g ha -1 peanut injury ranged from 24% to 72% for V3 exposure timing and 33% to 54% for R4 exposure timing. Similarly, glufosinate at 75.5 and 302 g ha -1 reduced peanut canopy width by 10% to 23% for V3 exposure timing and 43% to 57% for R4 exposure timing. Averaged across exposure timing, peanut yield was reduced by 15% and 61% at 75.5 and 302 g ha -1 , respectively. Averaged across rates, peanut yield reduction was 18% for V3 exposure timing, with glufosinate at 298 g ha -1 required to cause an estimated 50% reduction in yield. For R3 exposure timing, peanut yield reduction was 20%, with glufosinate at 243 g ha -1 required to cause an estimated 50% reduction in yield. There was no difference in Normalized Difference Vegetative Index (NDVI) between untreated plants and peanut exposed to glufosinate at 1.2, 4.7, and 18.9 g ha -1 . However, peanut exposed to glufosinate at 75.5 and 302 g ha -1 were distinguished from untreated plants with lower NDVI values. Based on Pearson’s Rho correlation coefficient, the best timing for assessing potential yield reduction based on injury was between 2 and 4 wk after treatment.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135633983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of inquiries on weed control efficacy of XtendiMax^® herbicide with VaporGrip^® technology 应用VaporGrip技术对XtendiMax除草剂除草效果的调查研究

3区农林科学

Weed Technology Pub Date : 2023-11-06 DOI: 10.1017/wet.2023.83

Aruna Varanasi, Daljit Singh, Jenny Krebel, Jeffrey Herrmann, John Willis, Greg Elmore, Joshua Fischer, Ty Witten, Graham Head, Chandrashekar Aradhya

{"title":"Investigation of inquiries on weed control efficacy of XtendiMax® herbicide with VaporGrip® technology","authors":"Aruna Varanasi, Daljit Singh, Jenny Krebel, Jeffrey Herrmann, John Willis, Greg Elmore, Joshua Fischer, Ty Witten, Graham Head, Chandrashekar Aradhya","doi":"10.1017/wet.2023.83","DOIUrl":"https://doi.org/10.1017/wet.2023.83","url":null,"abstract":"Abstract Herbicide resistance in weeds significantly threatens crop production in the United States. The introduction of dicamba-resistant soybean and cotton stacked with other herbicide tolerance traits has provided farmers with the flexibility to use multiple herbicide options to diversify their weed management practices and delay resistance evolution. XtendiMax ® herbicide with VaporGrip ® Technology is a dicamba formulation registered for use in dicamba-resistant soybean and cotton by the United States Environmental Protection Agency (US-EPA). One of the terms of its registration includes evaluating inquiries on reduced weed control efficacy by growers or users of XtendiMax for suspected weed resistance. A total of 3555 product performance inquiries (PPIs) were received from 2018 to 2021 regarding reduced weed control efficacy by dicamba. Following Norsworthy criteria recommended by US-EPA, for screening of suspected resistance in the field, a total of 103 weed accessions from sixty-three counties in 13 states were collected for greenhouse testing over those 4 years. Collection of weed accession(s) for greenhouse testing was made only in states where resistance to dicamba was not yet confirmed in the weed species under investigation. The accessions, which consisted primarily of waterhemp and Palmer amaranth, were treated with dicamba at 560g ae ha -1 and 1120g ae ha -1 rates. All weed accessions except for an accession each of Palmer amaranth and waterhemp, were controlled ≥90% by dicamba at 21 days after treatment in the greenhouse.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effectiveness of Preemergence- and Postemergence-Applied Oxyfluorfen in Rice Compared to Current Standards 水稻出生前和出生前施氟醚与现行标准的效果比较

3区农林科学

Weed Technology Pub Date : 2023-11-06 DOI: 10.1017/wet.2023.84

Casey H. Arnold, Jason K. Norsworthy, Thomas R. Butts, Trenton L. Roberts, Nick R. Bateman, Chad W Shelton

{"title":"Effectiveness of Preemergence- and Postemergence-Applied Oxyfluorfen in Rice Compared to Current Standards","authors":"Casey H. Arnold, Jason K. Norsworthy, Thomas R. Butts, Trenton L. Roberts, Nick R. Bateman, Chad W Shelton","doi":"10.1017/wet.2023.84","DOIUrl":"https://doi.org/10.1017/wet.2023.84","url":null,"abstract":"Abstract Control of barnyardgrass is becoming increasingly difficult as plants evolve resistance to herbicides. ROXY oxyfluorfen-resistant rice (ROXY ® Rice Production System) has been developed to allow for an alternative mode of action to control barnyardgrass and other weeds. In 2021 and 2022, field trials were conducted at the Pine Tree Research Station near Colt, AR, the Northeast Research and Extension Center in Keiser, AR, and the University of Arkansas Pine Bluff Small Farm Research Center near Lonoke, AR to determine the level of weed control and crop tolerance following oxyfluorfen applied preemergence or postemergence relative to herbicides currently labeled for use in rice. When applied post-plant preemergence on silt loam soil, oxyfluorfen alone at 1,120 and 1,680 g ai ha -1 resulted in barnyardgrass control comparable to clomazone alone at 336 g ha -1 . Still, injury to rice was often greater than with clomazone, ranging from 20% to 45%. On clay soil, oxyfluorfen at 1,680 g ha -1 resulted in barnyardgrass control comparable to clomazone alone in both site-years at three weeks after emergence but caused up to 18% injury to rice. When oxyfluorfen was applied at 560 to 1,680 g ha -1 at the 2-leaf rice growth stage, barnyardgrass control was ≥85% in three of four site-years one week after treatment. However, injury to rice ranged from 38% to 73% for the rates evaluated. Propanil caused the greatest injury by a herbicide currently labeled for use in rice at 34%. Oxyfluorfen should be used as a post-plant preemergence herbicide rather than a postemergence herbicide due to the injury observed after a postemergence application. The data indicates that if used as a preemergence herbicide, oxyfluorfen should be applied at 560 g ha -1 to reduce the injury observed on silt loam and clay soils.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135633984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Herbicide effects on dormant and post-dormant hybrid bermudagrass putting green turf 除草剂对休眠和休眠后杂交百慕草铺绿草坪的影响

3区农林科学

Weed Technology Pub Date : 2023-10-23 DOI: 10.1017/wet.2023.65

John M Peppers, Shawn D Askew

{"title":"Herbicide effects on dormant and post-dormant hybrid bermudagrass putting green turf","authors":"John M Peppers, Shawn D Askew","doi":"10.1017/wet.2023.65","DOIUrl":"https://doi.org/10.1017/wet.2023.65","url":null,"abstract":"Abstract Herbicide resistance coupled with a dearth of selective herbicide options has increased complexity of annual bluegrass control in hybrid bermudagrass putting greens. Cumyluron, endothall, and methiozolin are herbicides that have controlled annual bluegrass by inhibiting sites of action that are novel compared to herbicides currently used for turfgrass management in the US. However, peer-reviewed literature has no information on hybrid bermudagrass putting green tolerance to these herbicides. Sixteen field studies were established on eight golf greens in Midlothian, VA, in 2021 and 2022 to evaluate effects of cumyluron, endothall, methiozolin, pronamide and trifloxysulfuron on bermudagrass spring transition. The 16 studies were split equally between initiation during full dormancy versus mid-spring transition. Methiozolin applied at 500 and 1000 g ai ha -1 typically increased the heat units (growing degree days with a base temperature of 15 C) required for hybrid bermudagrass to visibly achieve 90% green coverage (T 90 ) when applied to fully dormant hybrid bermudagrass. This delay in green coverage was more pronounced at sites where hybrid bermudagrass vigor was seemingly reduced via abiotic stressors. Endothall was generally more injurious than all other treatments when applied to hybrid bermudagrass during mid-transition. Endothall applied at 840 g ai ha -1 injured hybrid bermudagrass for 0 to 9 d over a threshold of 30% (DOT 30 ), depending on location. In two site-years characterized by increased abiotic stress, methiozolin applied at 1000 g ai ha -1 caused 44 DOT 30 . Cumyluron never injured hybrid bermudagrass over 30% or delayed T 90 regardless of application timing. These results indicate methiozolin should only be applied within labeled rates to actively growing hybrid bermudagrass putting greens, cumyluron can be safely applied at 6450 g ai ha -1 on dormant or actively growing bermudagrass greens, and endothall applications should be limited to dormant bermudagrass greens unless transient phytotoxicity is acceptable.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"6 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135405829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sulfentrazone Crop Safety and Efficacy in Cabbage and Broccoli 磺胺酮在白菜和西兰花中的安全性和有效性

3区农林科学

Weed Technology Pub Date : 2023-10-23 DOI: 10.1017/wet.2023.75

Laura Pineda-Bermudez, Thierry E. Besançon, Lynn M. Sosnoskie

{"title":"Sulfentrazone Crop Safety and Efficacy in Cabbage and Broccoli","authors":"Laura Pineda-Bermudez, Thierry E. Besançon, Lynn M. Sosnoskie","doi":"10.1017/wet.2023.75","DOIUrl":"https://doi.org/10.1017/wet.2023.75","url":null,"abstract":"Abstract In 2021 and 2022, research was initiated to evaluate the efficacy and safety of sulfentrazone in transplanted cabbage and broccoli. Treatments included oxyfluorfen at 560 g ha -1 pre-transplant (PRE-T), sulfentrazone at 116 or 233 g ha -1 PRE-T, and S -metolachlor at 715 g ha -1 immediately applied after transplanting (POST-T) followed by (fb) oxyfluorfen at 210 g ha -1 postemergence (POST) 14 d after planting (DAP). Concerning weed cover, the weedy non-treated plots averaged between 6% (14 DAP) and 72% (42 DAP); all herbicide-treated plots averaged less than 30% cover at 42 DAP. At 14 and 28 DAP, oxyfluorfen, S –metolachlor fb oxyfluorfen, and sulfentrazone high rate reduced total monocotyledonous and dicotyledonous weed densities 62 and 100% relative to the non-treated control. Hairy galinsoga (NJ) and combined ladysthumb and prostrate knotweed (NY) density was reduced 71 to 99%. Except for the low rate of sulfentrazone, all herbicide treatments reduced weed biomass at harvest ≥ 88%. Crop injury varied in response to herbicide treatments or weed competition but was also affected by crop and location. Between 14 and 28 DAP, the greatest amount of stunting (22%) was noted in the S -metolachlor fb oxyfluorfen treatments for both locations. Averaged over treatments, greater stunting was observed in broccoli as compared to cabbage in NY, whereas stunting estimates were higher for cabbage in NJ. All NJ treatments significantly increased cabbage yield and broccoli and cabbage head sizes relative to the non-treated control. No yield difference was noted between herbicide treatments and the non-treated check in NY. Data derived from these studies will be used to enhance crop safety recommendations in Northeast production environments for sulfentrazone used PRE in transplanted cabbage and support a potential label for broccoli.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"4 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135368190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of Low Tunnels to Describe Effects of Herbicide, Adjuvant, and Target Surface on Dicamba Volatility 利用低隧道描述除草剂、佐剂和靶表面对麦草畏挥发性的影响

3区农林科学

Weed Technology Pub Date : 2023-10-16 DOI: 10.1017/wet.2023.74

Maria Leticia Zaccaro-Gruener, Jason K. Norsworthy, Leonard B Piveta, L. Tom Barber, Andy Mauromoustakos, Thomas C. Mueller, Trenton L. Roberts

{"title":"Use of Low Tunnels to Describe Effects of Herbicide, Adjuvant, and Target Surface on Dicamba Volatility","authors":"Maria Leticia Zaccaro-Gruener, Jason K. Norsworthy, Leonard B Piveta, L. Tom Barber, Andy Mauromoustakos, Thomas C. Mueller, Trenton L. Roberts","doi":"10.1017/wet.2023.74","DOIUrl":"https://doi.org/10.1017/wet.2023.74","url":null,"abstract":"Abstract Investigations of the relevance of low tunnel methodology and air sampling concerning the off-target movement of dicamba were conducted from 2018 to 2022, focused primarily on volatility. This research, divided into three experiments, evaluated the impact of herbicides and adjuvants added to dicamba and the type of surface treated on dicamba volatility. Treatment combinations included glyphosate and glufosinate, the presence of a simulated contamination rate of ammonium sulfate (AMS), the benefit of a volatility reduction agent (VRA), and a vegetated (dicamba-resistant cotton) or soil surface treated with dicamba. Volatility assessments included air sampling collected over 48 h. Dicamba treatments were applied four times to each of two bare soil or cotton trays and placed inside the tunnels. The extraction and quantification of dicamba from air samples were conducted. Field assessments included the maximum and average visible injury in bioindicator soybean and the lateral movement of dicamba damage expressed by the furthest distance from the center of the plots to the position in which plants had 5% injury. Adding glufosinate and glyphosate to dicamba increased the dicamba amount in air samples. A simulated tank contamination rate of AMS (0.005% v/v) did not impact dicamba emissions compared to a treatment lacking AMS. Adding a VRA reduced dicamba in air samples by 70% compared to treatment without the adjuvant. Dicamba treatments applied on vegetation generally produced greater amounts of dicamba detected than treatments applied to bare soil. Field assessment results usually followed differences in dicamba concentration by treatments tested. Results showed that low tunnel methodology allowed simultaneous comparisons of several treatment combinations concerning dicamba volatility.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136112522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Winter Rye Termination by Mixing Glyphosate with Other Herbicides Using Water or UAN as the Carrier 以水或尿素为载体，草甘膦与其他除草剂混用提高冬黑麦去除率

3区农林科学

Weed Technology Pub Date : 2023-10-16 DOI: 10.1017/wet.2023.73

Olivia M. Noorenberghe, Peter H. Sikkema, Michael J. Cowbrough, David C. Hooker, Nader Soltani, François J. Tardif

{"title":"Enhancing Winter Rye Termination by Mixing Glyphosate with Other Herbicides Using Water or UAN as the Carrier","authors":"Olivia M. Noorenberghe, Peter H. Sikkema, Michael J. Cowbrough, David C. Hooker, Nader Soltani, François J. Tardif","doi":"10.1017/wet.2023.73","DOIUrl":"https://doi.org/10.1017/wet.2023.73","url":null,"abstract":"Abstract Herbicides are often used to terminate cover crops. Producers would like to use herbicides that work quickly, are effective, and do not increase the risk of selecting herbicide-resistant weeds. Eight experiments were conducted to determine if mixing glyphosate (900 g a.e. ha -1 ) with rimsulfuron (15 g a.i. ha -1 ), mesotrione (100 g a.i. ha -1 ), or rimsulfuron + mesotrione enhances winter rye control and to ascertain if using urea ammonium nitrate (UAN) as the herbicide carrier improves and accelerates herbicide efficacy. Winter rye control was assessed 1, 2, 3, and 4 weeks after application (WAA) and biomass was measured 4 WAA. The addition of rimsulfuron, mesotrione, or rimsulfuron + mesotrione to glyphosate did not enhance winter rye control. Similarly, using UAN as the herbicide carrier did not improve or accelerate herbicide efficacy. Glyphosate alone provided the highest level of winter rye control. The addition of rimsulfuron, mesotrione, or rimsulfuron + mesotrione to glyphosate did not increase the level or speed of control. However, mixing glyphosate with rimsulfuron, mesotrione, or rimsulfuron + mesotrione adds other modes of action without compromising winter rye control.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136112515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ethofumesate resistant annual bluegrass (Poa annua) in grass seed production systems 禾草种子生产系统中抗乙硫马酯的一年生蓝草

3区农林科学

Weed Technology Pub Date : 2023-10-13 DOI: 10.1017/wet.2023.68

Vera Vukovic, Clint M. Mattox, Alec R. Kowalewski, Brandon C. McNally, Cale A. Bigelow, Stephen L. Meyers, Jim T. Brosnan, Aaron J. Patton

{"title":"Ethofumesate resistant annual bluegrass (Poa annua) in grass seed production systems","authors":"Vera Vukovic, Clint M. Mattox, Alec R. Kowalewski, Brandon C. McNally, Cale A. Bigelow, Stephen L. Meyers, Jim T. Brosnan, Aaron J. Patton","doi":"10.1017/wet.2023.68","DOIUrl":"https://doi.org/10.1017/wet.2023.68","url":null,"abstract":"Abstract The prolific seed production and polyploidy of annual bluegrass allow for the rapid development of herbicide resistance. Ethofumesate-resistant annual bluegrass plants were identified in the 1990s in grass seed production in Oregon but their prevalence and distribution are not well documented. Therefore, a dose-response experiment was initiated to determine the potential level of ethofumesate resistance in seed production systems. Seeds from 55 annual bluegrass populations were obtained from three sources: seed production fields (31 populations), seed cleaning process (6 populations), and seed testing lots prior to retail distribution (18 populations). Additionally, two populations, one with known ethofumesate resistance and one with known susceptibility, were identified in preliminary testing and used as controls in this experiment. Seed from each collected population was increased. Individual seedlings were then transplanted into separate cone-tainers, grown to a size of 2 to 3 tillers in the greenhouse, and then sprayed using a compressed air track spray chamber with ten doses of ethofumesate: 0, 0.56, 1.1, 2.8, 5.6, 8.4, 11.2, 16.8, 22.4, and 44.8 kg ai ha −1 ; with 0.84 to 2.2 kg ha −1 as the label application rates for perennial ryegrass. The resistant to susceptible ratio of populations across all sources ranged from 0.5 to 5.5. The most resistant populations found in production fields, seed cleaning, and seed testing lots had ED 50 values of 12.1, 9.4, and 13.1 kg ha −1 , respectively. Further, 68% of the populations found in production fields had the effective dose necessary to kill 50% of the population (ED 50 ) higher than 6 kg ha −1 , indicating common annual bluegrass resistance in grass seed production. As such, herbicides alone will likely be ineffective at controlling annual bluegrass, and integrated weed management strategies should be implemented by growers.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Responses of Rice Genotypes to Foliar-Applied Metribuzin 水稻基因型对叶面施用美曲霉嗪的反应

3区农林科学

Weed Technology Pub Date : 2023-10-13 DOI: 10.1017/wet.2023.76

Sarah L. Marsh, Kassim Al-Khatib

{"title":"Responses of Rice Genotypes to Foliar-Applied Metribuzin","authors":"Sarah L. Marsh, Kassim Al-Khatib","doi":"10.1017/wet.2023.76","DOIUrl":"https://doi.org/10.1017/wet.2023.76","url":null,"abstract":"Abstract The increasing development of herbicide resistance in weeds found in rice cropping systems has encouraged researchers to evaluate alternate herbicides to prevent and manage herbicide-resistant weed biotypes. Metribuzin is a photosynthetic-inhibiting herbicide that controls various important grass and broadleaf weeds. Several crops, including soybeans, wheat, peas, and potatoes, have shown differential varietal responses to metribuzin. To determine whether rice has differential varietal responses to metribuzin for potential utilization in a rice breeding program, greenhouse experiments were conducted to evaluate the responses of 142 long-, medium-, and short-grain rice genotypes to the herbicide. Metribuzin was applied at 0, 22, 44, 88, 176, and 352 g ai ha -1 when rice plants were in the three- to four-leaf stage. Crop response regarding phytotoxicity, height reduction, and biomass reduction was evaluated. Metribuzin caused significant injury to all rice genotypes tested, but short-grain rice genotypes were, on average, more susceptible than medium- and long-grain rice. Short-grain rice genotypes generally had greater height reduction and produced less biomass than long-grain or medium-grain rice genotypes. Crop visual injury ratings were correlated with plant height reductions and biomass reductions. The results indicate that the level of metribuzin tolerance in rice is inadequate for commercial use; however, further research is needed to develop higher levels of herbicide resistance by mutagenized rice cultivars.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135855335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The First Weed Management Textbook in the United States (Part 2) 美国第一本杂草管理教材(下)

3区农林科学

Weed Technology Pub Date : 2023-10-12 DOI: 10.1017/wet.2023.77

John Byrd, David Russell, Kayla Broster

引用次数: 0