Journal of cotton science最新文献_第9页

The Use of Canopeo for Seedling Cotton Health Ratings in Small Plot Research Canopeo在小块棉花苗木健康等级研究中的应用

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/ssci4336

Scott H. Graham, Xiao-Qin Zhu, H. Kelly, S. Stewart

引用次数: 1

Evaluation of Early Season Foliar Fungicide Applications to Support Non-Fungicidal ‘Plant Health’ Benefits 早期叶面杀菌剂应用对支持非杀菌剂“植物健康”效益的评价

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/adtj9206

T. Raper, D. Fromme, D. Dodds, G. Morgan, R. Boman, Shawn A. Butler, W. Frame

{"title":"Evaluation of Early Season Foliar Fungicide Applications to Support Non-Fungicidal ‘Plant Health’ Benefits","authors":"T. Raper, D. Fromme, D. Dodds, G. Morgan, R. Boman, Shawn A. Butler, W. Frame","doi":"10.56454/adtj9206","DOIUrl":"https://doi.org/10.56454/adtj9206","url":null,"abstract":"The recent labeling of a new fungicide and rumors of non-fungicidal ‘plant health’ benefits achieved through early-season foliar applications of certain fungicides have led to inquiries concerning the practice. The objective of this research was to determine the impact of an early-season fungicide application on early-season growth or end-of-season lint yields, turnout, and/or fiber quality when disease symptoms are not present. During the 2014-2016 growing seasons, a total of ten trials were established in Alexandria, LA; Starkville, MS; Fort Cobb, OK; Jackson, TN; and Snook, TX. Fungicide treatments included an untreated control, a foliar application of 0.11 kg ai ha-1 zoxystrobin, and a foliar application of 0.07 kg ai ha-1 fluxapyroxad + 0.15 kg ai ha-1 pyraclostrobin. All treatments targeted the two through four true leaf growth stage. A significant interaction between fungicide treatment and site-year was observed from node counts collected at 14 and 28 DAA. Site-year analysis indicated a significant reduction in node counts observed with the azoxystrobin treatment in one site-year in the 14 DAA data and one site-year in the 28 DAA data. Fungicide treatment did not impact plant height or vigor ratings collected at 14 or 28 DAA, chlorophyll meter readings, lint yield, turnout, or fiber quality parameters in any site-year. Failure of fungicide treatments to positively impact in-season growth measurements, yield, and yield parameters suggests the evaluated fungicides should not be applied early-season for the purpose of improving ‘plant health’ and should instead be reserved to target above-threshold levels of disease incidence/severity.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70803300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cotton Improvement Conference 1948-2018 and Cotton Genetics Research Award 1961-2018 1948-2018年棉花改良会议和1961-2018年棉花遗传学研究奖

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/hiqy1456

Jack C. McCarty Jr.

{"title":"Cotton Improvement Conference 1948-2018 and Cotton Genetics Research Award 1961-2018","authors":"Jack C. McCarty Jr.","doi":"10.56454/hiqy1456","DOIUrl":"https://doi.org/10.56454/hiqy1456","url":null,"abstract":"The 70th anniversary of the Cotton Improvement Conference (CIC) was celebrated at the 2018 annual meeting. The CIC was organized in 1948 at a meeting held in conjunction with the Southern Agricultural Workers in New Orleans, LA. The structure of the CIC was informal with the purpose of allowing state, federal, and other cotton workers to report on research, exchange ideas and facilitate research program planning. The first meeting was held in Baton Rouge, LA in 1949. Few records remain of the early years of the conference even though mimeograph proceedings were produced. In 1956, the CIC joined the Beltwide Cotton Production Conference and has continued to meet annually with this group. In 1956, the Beltwide Conferences consisted of the Cotton Disease Council, founded in 1936, Cotton Defoliation – Physiology, established in 1942, Cotton Insect Control (1947), and CIC. Through the years members of the CIC have played key roles in the Joint Cotton Breeding Policy Committee, National Cotton Variety Test Program, and the Cotton Winter Nursery. The reporting of research, exchanging of ideas, and cooperation among public and private cotton workers has persisted throughout the 70 years of the CIC and these activities have benefitted the cotton industry. The Cotton Genetics Research Award was established in 1961 by the commercial cotton breeders to recognize scientific achievement in basic research in cotton genetics, cytogenetics and breeding.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70803410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COTTON GINNERS HANDBOOK: A Comprehensive Gin Maintenance Program 轧棉机手册:一个全面的轧棉机维修计划

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/xqui5895

P. Funk, Robert G. Hardin IV

引用次数: 0

Joint Segregation of High Glanding with Nectariless and Frego Bract in Cotton 棉花无花蜜苞片和无花蜜苞片高腺体的联合分离

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/zghf1019

M. A. Tcach, Monica V. Spoljaric, D. A. Bela, C. Acuña

{"title":"Joint Segregation of High Glanding with Nectariless and Frego Bract in Cotton","authors":"M. A. Tcach, Monica V. Spoljaric, D. A. Bela, C. Acuña","doi":"10.56454/zghf1019","DOIUrl":"https://doi.org/10.56454/zghf1019","url":null,"abstract":"There are mutant alleles in the genus Gossypium that increase its tolerance to insect pests. Among the traits that are effective against different insects, high glanding and nectariless increase cotton tolerance to lepidopteran insects, whereas frego bract suppresses the oviposition of the boll weevil, Anthonomus grandis Boheman. The objectives of this research were to transfer the high-glanding trait to frego-bract and nectariless plants. The genotypes used belonged to G. hirsutum: Guazuncho 3 INTA nectariless ne, SP 26 high glanding HG, and SP 47304 frego bract BF. Crosses between SP 26 HG/Guazuncho 3 INTA ne and SP 26 HG/SP 47304 BF and the F2 and F3 generations were obtained. For the combination of high glanding with frego bract, the frequency of individuals with both features varied from 6.4% in the F2 generations to 24.6% in the F3. For the other combination, high glanding with nectariless, the frequency of recombination was of 7.3% in the F2 and 11.8% in the F3. High glanding, nectariless, and frego bract are independently inherited traits in G. hirsutum. Therefore, it is possible to combine the high-glanding trait with frego bracts or nectariless in the same line.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70805960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

COTTON GINNERS HANDBOOK: Cotton Gin Pneumatic Conveying Systems 轧棉机手册:轧棉机气力输送系统

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/rlem8406

D. Whitelock, M. Buser, G. Holt, Robert G. Hardin IV, Kelley Green, J. Fábián, Duncan McCook

{"title":"COTTON GINNERS HANDBOOK: Cotton Gin Pneumatic Conveying Systems","authors":"D. Whitelock, M. Buser, G. Holt, Robert G. Hardin IV, Kelley Green, J. Fábián, Duncan McCook","doi":"10.56454/rlem8406","DOIUrl":"https://doi.org/10.56454/rlem8406","url":null,"abstract":"Cotton gins use air to move seed cotton, lint, cottonseed, and trash through conveying pipes. In gins, pneumatic conveying systems are the principal means of moving material from one processing stage to another throughout the entire ginning plant. Further, material drying or moisture restoration can be accomplished by heating or humidifying the conveying air. Pneumatic systems are a critical and fundamental component of cotton ginning. Cotton gins use large quantities of air for pneumatic conveying. It is common for a gin to use 4,248 m3 (150,000 ft3) or more of air per minute in its various material conveying systems. Because the density of dry standard air is approximately 1.2 kg/m3 (0.075 lb/ft3), a typical gin using 4,248 m3/min (150,000 ft3/min) of air moves 305,860 kg (675,000 lb) of air per hour. This mass of air per hour is approximately 1.5 times the total mass of material handled per hour. Typically, more than 60 to 65% of the total electrical power consumed by a cotton gin is attributed to moving material pneumatically. Properly taking air measurements, determining air flow requirements, sizing conveying pipes, sizing fans to generate required air flow rates, and accounting for specific machinery air requirements are essential to maximizing machine utilization, minimizing energy costs, and decreasing system downtime. This update of the Cotton Ginners Handbook provides current technical information on cotton gin pneumatic systems. It draws heavily on previous versions of the Cotton Ginners Handbook (Stedronsky 1964; McCaskill et al., 1977; Baker et al., 1994) and the knowledge and experience of current and past instructors of the Air Systems classes from the National Cotton Ginners’ Association Gin Schools.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70805637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Irrigation Timing on Tarnished Plant Bug Populations and Yield of Cotton 灌溉时机对棉花褐虫种群及产量的影响

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/ycur2379

C. Wood, J. Gore, A. Catchot, D. Cook, D. Dodds, J. Krutz

{"title":"Impact of Irrigation Timing on Tarnished Plant Bug Populations and Yield of Cotton","authors":"C. Wood, J. Gore, A. Catchot, D. Cook, D. Dodds, J. Krutz","doi":"10.56454/ycur2379","DOIUrl":"https://doi.org/10.56454/ycur2379","url":null,"abstract":"The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), is the most significant insect pest of cotton, Gossypium hirsutum (L.), in the mid-southern United States (Arkansas, Louisiana, Mississippi, Missouri, and Tennessee). Past research has shown the impact that planting date, nitrogen rate, and variety selection has on tarnished plant bug populations, but a paucity of data exists on the effect irrigation timing has on tarnished plant bug. Experiments were conducted at the Mississippi State University Delta Research and Extension Center in Stoneville, MS to determine if insecticide applications targeting the tarnished plant bug could be reduced in response to irrigation timings. Treatments were in a strip-block arrangement, with the main plot factor being irrigations initiated at squaring, first flower, peak flower, and a non-irrigated control. The sub-plot factor was tarnished plant bug management that consisted of insecticide applications made weekly, at threshold, and a non-treated control. Overall, insecticide applications for tarnished plant bug increase yield. Irrigation initiated at squaring resulted in tarnished plant bugs exceeding the recommended treatment threshold significantly more than when irrigations were initiated later in the growing season. Also, when irrigation was postponed until peak flower, no yield loss or delay in maturity was observed. These results indicate that irrigation timing could be a potential cultural control practice that reduces the number of insecticide applications targeting tarnished plant bug populations in Mid-South cotton.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70805805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Testing Locations in Regional High Quality Tests for Cotton Seed Quality Traits 棉花种子品质性状区域优质试验的试验地点

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/bgmn9015

L. Zeng, William C. Bridges Jr., F. Bourland

{"title":"Testing Locations in Regional High Quality Tests for Cotton Seed Quality Traits","authors":"L. Zeng, William C. Bridges Jr., F. Bourland","doi":"10.56454/bgmn9015","DOIUrl":"https://doi.org/10.56454/bgmn9015","url":null,"abstract":"Significant genotype (G) × environment (E) effects for cotton (Gossypium hirsutum L.) seed quality traits have been identified in previous studies. Significant G × E interactions necessitate multiple-location tests to evaluate seed quality traits, which add cost to the tests. Reduction of testing locations could trim costs if the analysis of G × E interactions and the efficiency in breeding are not dramatically affected. The objectives of this study were: 1) to determine an appropriate reduction of testing locations without significant loss in power for detecting G × E effects; 2) to determine an appropriate reduction of testing locations without significant loss in accuracy for estimating strain means; and 3) to identify a possible mega-environment for evaluation of seed traits using GGE biplot. Historical data of Regional High Quality (RHQ) tests from 2005 through 2013 were used to address the objectives for three seed quality traits including oil content, N content, and free-gossypol. Significant G × location (L) interactions were detected in most cases. However, with averages of the three traits, less G × L interactions were detected with 7.3% and 9.1% non-significance, when two and three locations were omitted, respectively. Reduction of locations up to three, increased standard error to 25% of those with zero locations omitted. There was no clear mega-environment identified for seed traits. However, the locations of Lubbock, TX, Stoneville, MS, Florence, SC, and Portageville, MO were identified as being more representative than others for evaluation of the N content.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70802956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Cotton Growth and Yield Response to Short-Term Tillage Systems and Planting Date in North Carolina 北卡罗来纳州棉花生长和产量对短期耕作制度和播种日期的响应

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/nfrm8991

T. Spivey, K. Edmisten, R. Wells, Deovina N. Jordan, J. Heitman, G. Wilkerson, T. Spivey, Deovina N. Jordan

{"title":"Cotton Growth and Yield Response to Short-Term Tillage Systems and Planting Date in North Carolina","authors":"T. Spivey, K. Edmisten, R. Wells, Deovina N. Jordan, J. Heitman, G. Wilkerson, T. Spivey, Deovina N. Jordan","doi":"10.56454/nfrm8991","DOIUrl":"https://doi.org/10.56454/nfrm8991","url":null,"abstract":"Tillage practices, cover crops, and planting dates can influence soil moisture and temperature conditions at planting and cotton (Gossypium hirsutum L.) stand establishment and yield. A study was conducted in North Carolina at two locations from 2014 through 2016. Treatments included six tillage systems of fall and spring conventional raised beds and flat strip tillage planted in early and late May, with and without a wheat (Triticum aestivum L.) cover crop. Tillage treatments include conventional spring raised beds, fall strip till, stale seedbed, at-plant strip till, pre-plant strip till, and stale seedbed with at-plant strip till. Except for fall strip tillage, no tillage systems reduced plant populations compared to conventionally tilled cotton in any environment. Crop growth rates were similar in conventional and spring strip-till systems and were lower in four planting date environments with stale seedbeds. In 2016, in-row soil resistance was measured from 0- to 30-cm depth using a conical penetrometer both at planting and post-harvest. Plots without any spring tillage had the greatest soil resistance for all measurements and depths. All plots with spring tillage had similar soil resistance to at least the 15-cm depth from which point the conventional spring beds had the least soil resistance through the 30-cm profile. Late planted cotton in 2014 showed inconsistent yield differences among tillage systems between locations. When pooled over location and year for 2015 and 2016, however, tillage system did not influence cotton yield. These data indicate that cotton yields in reduced-till systems are comparable to cotton grown in conventional systems in North Carolina soils.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70804796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cotton (Gossypium hirsutum L.) Injury, Growth, and Yield Following Low-Dose Flumioxazin Postemergence Applications 棉花(棉)低剂量氟恶嗪苗后应用后的伤害、生长和产量

IF 0.5

Journal of cotton science Pub Date : 2019-01-01 DOI: 10.56454/scjm9847

Daniel O. Stephenson IV, T. Spivey, Michael A. Deliberto Jr., D. Blouin, Brandi C. Woolam, Trace B. Buck

{"title":"Cotton (Gossypium hirsutum L.) Injury, Growth, and Yield Following Low-Dose Flumioxazin Postemergence Applications","authors":"Daniel O. Stephenson IV, T. Spivey, Michael A. Deliberto Jr., D. Blouin, Brandi C. Woolam, Trace B. Buck","doi":"10.56454/scjm9847","DOIUrl":"https://doi.org/10.56454/scjm9847","url":null,"abstract":"The effects of postemergence (POST) herbicides off-target movement on cotton has been evaluated, but no data is available evaluating simulated off-target movement of residual herbicides. Therefore, low-dose POST applications of flumioxazin were evaluated in cotton at the cotyledon, two- and four-leaf growth stages. Rates evaluated were 12.5, 25, and 50% of the labeled use rate of 72 g ai ha-1. Necrosis, cotton height and width reduction was observed. Cotyledon cotton was injured 69 to 86%, 80 to 91%, and 84 to 97% following the 12.5, 25, and 50% flumioxazin rates, respectively, 3 through 42 DAT. Injury of two-leaf cotton increased from 3 to 14 DAT for all flumioxazin rates with maximum injury of 40, 47, and 58% following the 12.5, 25, and 50% rates, respectively, 14 DAT, but injury decreased following the 14 DAT evaluation. Injury of four-leaf cotton was 46 to 58% 3 DAT and decreased over time regardless of rate. At 42 DAT, two- and four-leaf cotton was injured 14 to 33% and increased with flumioxazin rate. Cotton height and width averaged 40, 80, 86% of the nontreated following the cotyledon, two-, and four-leaf application timings, respectively, 42 DAT. In addition, height was more influenced by flumioxazin rate than cotton width. Yields were 24, 52, and 62% of the nontreated following the cotyledon, two-, and four-leaf applications timings, respectively. In addition, yields following the 12.5, 25, and 50% rates were 53, 45, and 40% of the nontreated. Low-doses of flumioxazin reduced revenue $1,172 to $2,344 ha-1 for lint and $212 to 423 ha-1 for cotton seed. Low-doses of flumioxazin POST can have negative effects on cotton growth and yield and could cause severe economic loss for a cotton producer.","PeriodicalId":15558,"journal":{"name":"Journal of cotton science","volume":"230 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70805713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1