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Guihua Bai - One of the best experts on this subject based on the ideXlab platform.
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registration of sunshine hard white Winter Wheat
Journal of Plant Registrations, 2017Co-Authors: Scott D Haley, Jerry J Johnson, Frank B Peairs, John A Stromberger, Emily E Hudsonarns, Scott A Seifert, Victoria A Anderson, Guihua Bai, Xianming Chen, Robert L BowdenAbstract:‘Sunshine’ (Reg. No. CV-1129, PI 674741) hard white Winter Wheat (Triticum aestivum L.) was developed by the Colorado Agricultural Experiment Station and released in August 2014 through a marketing agreement with the Colorado Wheat Research Foundation. In addition to researchers at Colorado State University, USDA-ARS researchers at Manhattan, KS, St. Paul, MN, and Pullman, WA participated in its development. Sunshine was developed with the objective of making available a hard white Winter Wheat cultivar with improved grain yield and straw strength and similar milling and baking qualities to ‘Snowmass’ hard white Winter Wheat. Both Snowmass and Sunshine are grown in Colorado and adjacent areas of the west-central Great Plains in an identity-preserved marketing system whereby a grower premium is paid through a contract with a flour milling company. Sunshine was developed with a modified-bulk breeding method from the cross KS01HW152-6/HV9W02-267W made in 2005 at Fort Collins, CO. Following two generations (F₂ and F₃) of bulk-population evaluation, Sunshine was selected as an F₃:₄ line in July 2009, assigned experimental line number CO09W293, and evaluated in replicated yield trials from 2012 to 2014 in eastern Colorado.
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registration of joe hard white Winter Wheat
Journal of Plant Registrations, 2016Co-Authors: Guorong Zhang, Robert L Bowden, Terry J Martin, Allan K Fritz, Rebecca Miller, Mingshun Chen, Guihua BaiAbstract:‘Joe’ (Reg. No. CV-1119, PI 676270) hard white Winter Wheat (Triticum aestivum L.) was developed at the Agricultural Research Center-Hays, Kansas State University, and released by the Kansas Agricultural Experiment Station in 2015. Joe was selected from a single cross of KS04HW101-3/KS04HW119-3 made in 2005 at Hays, KS. The objective of this cross was to develop a hard white Winter Wheat cultivar with adaptation to dryland production in western Kansas. Joe was developed using a modified bulk breeding method. Joe is an F₆–derived line with experimental number KS11HW39-5-4, and it was tested in yield trials from 2010 to 2015. Joe is medium late and medium tall with a medium high test weight and medium protein concentration. Its milling and baking quality is acceptable to good. Joe was released because of its high grain yield potential in western Kansas and its good resistance to stripe rust (caused by Puccinia striiformis f. sp. tritici Westend.), leaf rust (caused by P. triticina f. sp. tritici Ericks.), and Wheat streak mosaic virus.
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association analysis of stem rust resistance in u s Winter Wheat
PLOS ONE, 2014Co-Authors: Dadong Zhang, Brett F Carver, Robert L Bowden, Guihua BaiAbstract:Stem rust has become a renewed threat to global Wheat production after the emergence and spread of race TTKSK (also known as Ug99) and related races from Africa. To elucidate U.S. Winter Wheat resistance genes to stem rust, association mapping was conducted using a panel of 137 lines from cooperative U.S. Winter Wheat nurseries from 2008 and simple sequence repeat (SSR) and sequence tagged site (STS) markers across the Wheat genome. Seedling infection types were evaluated in a greenhouse experiment using six U.S. stem rust races (QFCSC, QTHJC, RCRSC, RKQQC, TPMKC and TTTTF) and TTKSK, and adult plant responses to bulked U.S. races were evaluated in a field experiment. A linearization algorithm was used to convert the qualitative Stakman scale seedling infection types for quantitative analysis. Association mapping successfully detected six known stem rust seedling resistance genes in U.S. Winter Wheat lines with frequencies: Sr6 (12%), Sr24 (9%), Sr31 (15%), Sr36 (9%), Sr38 (19%), and Sr1RSAmigo (8%). Adult plant resistance gene Sr2 was present in 4% of lines. SrTmp was postulated to be present in several hard Winter Wheat lines, but the frequency could not be accurately determined. Sr38 was the most prevalent Sr gene in both hard and soft Winter Wheat and was the most effective Sr gene in the adult plant field test. Resistance to TTKSK was associated with nine markers on chromosome 2B that were in linkage disequilibrium and all of the resistance was attributed to the Triticum timopheevii chromosome segment carrying Sr36. Potential novel rust resistance alleles were associated with markers Xwmc326-203 on 3BL, Xgwm160-195 and Xwmc313-225 on 4AL near Sr7, Xgwm495-182 on 4BL, Xwmc622-147 and Xgwm624-146 on 4DL, and Xgwm334-123 on 6AS near Sr8. Xwmc326-203 was associated with adult plant resistance to bulked U.S. races and Xgwm495-182 was associated with seedling resistance to TTKSK.
Scott D Haley - One of the best experts on this subject based on the ideXlab platform.
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registration of sunshine hard white Winter Wheat
Journal of Plant Registrations, 2017Co-Authors: Scott D Haley, Jerry J Johnson, Frank B Peairs, John A Stromberger, Emily E Hudsonarns, Scott A Seifert, Victoria A Anderson, Guihua Bai, Xianming Chen, Robert L BowdenAbstract:‘Sunshine’ (Reg. No. CV-1129, PI 674741) hard white Winter Wheat (Triticum aestivum L.) was developed by the Colorado Agricultural Experiment Station and released in August 2014 through a marketing agreement with the Colorado Wheat Research Foundation. In addition to researchers at Colorado State University, USDA-ARS researchers at Manhattan, KS, St. Paul, MN, and Pullman, WA participated in its development. Sunshine was developed with the objective of making available a hard white Winter Wheat cultivar with improved grain yield and straw strength and similar milling and baking qualities to ‘Snowmass’ hard white Winter Wheat. Both Snowmass and Sunshine are grown in Colorado and adjacent areas of the west-central Great Plains in an identity-preserved marketing system whereby a grower premium is paid through a contract with a flour milling company. Sunshine was developed with a modified-bulk breeding method from the cross KS01HW152-6/HV9W02-267W made in 2005 at Fort Collins, CO. Following two generations (F₂ and F₃) of bulk-population evaluation, Sunshine was selected as an F₃:₄ line in July 2009, assigned experimental line number CO09W293, and evaluated in replicated yield trials from 2012 to 2014 in eastern Colorado.
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variation for glutenin and waxy alleles in the us hard Winter Wheat germplasm
Journal of Cereal Science, 2007Co-Authors: Xueyan Shan, Scott D Haley, S R Clayshulte, Patrick F ByrneAbstract:We conducted a survey of high- and low-molecular-weight glutenin subunits (HMW-GS and LMW-GS, respectively) and waxy (Wx) allele composition in 111 Winter Wheat cultivars and advanced lines developed in the US Hard Winter Wheat Region since 1991. At the HMW-GS Glu-A1 locus, 76.1% of entries had allele b (encoding subunit 2*), 21.2% carried allele a (subunit 1), and 2.7% had allele c (null). Glu-B1 alleles were c (subunits 7+9; 47.7% of entries), b (subunits 7+8; 33.3%), e (subunits 20x+20y; 7.7%), i (subunits 17+18; 6.3%), and w (subunits 6*+8*; 5%). At Glu-D1, 80.6% of the entries carried allele d (subunits 5+10), 11.3% had allele a (subunits 2+12), 7.2% carried allele b (subunits 3+12), and 0.9% had allele e (subunits 2+10). Glu-B1 and Glu-D1 allele frequency differed significantly (P<0.01) from a previous study of the US Hard Winter Wheat germplasm developed from 1970 to 1990. At LMW-GS loci, five Glu-A3 alleles, nine Glu-B3 alleles, and five Glu-D3 alleles were identified. Ten entries with the null Wx-B1b allele and seven with the null Wx-A1b allele were detected. This survey allows comparisons of HMW-GS and waxy allele compositions with the US Hard Winter Wheat germplasm from previous eras and provides baseline data on LMW-GS composition.
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antioxidant properties of hard Winter Wheat extracts
Food Chemistry, 2002Co-Authors: Scott D Haley, Jonathan Perret, Mary A HarrisAbstract:Abstract Extracts from three Winter Wheat varieties (‘Trego’, ‘Akron’ and ‘Platte’) were evaluated and compared to α-tocopherol for their inhibitory effects on lipid peroxidation in fish oils by measuring the oil stability index (OSI). Free radical scavenging capacities and chelating potencies were also measured to better understand the potential mechanism(s) of their effects on lipid peroxidation. Trego extracts showed the greatest capacity to suppress lipid peroxidation in fish oils. The OSI time of the oil sample containing 600 ppm Trego extract was 2.85 h beyond the control sample containing no antioxidant, which is 3.1 times longer than the OSI time of oil containing 300 ppm tocopherol. Dose effects were observed for Trego extract, but not for Akron or Platte extracts. Furthermore, the higher level of Platte extract corresponded to a shorter OSI time. All three Wheat extracts directly reacted with and quenched DPPH radicals and showed chelating activity. Akron extract had the greatest radical scavenging and chelating activities. Neither radical scavenging nor chelating activities of the Wheat extracts can explain the relative activities of these extracts on lipid peroxidation in fish oils under the experimental conditions. The results of this study indicate possibility of to developing natural food antioxidants from selected Wheat varieties, including Trego hard white Winter Wheat.
Qi Dong - One of the best experts on this subject based on the ideXlab platform.
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response of Winter Wheat to spring frost from a remote sensing perspective damage estimation and influential factors
Isprs Journal of Photogrammetry and Remote Sensing, 2020Co-Authors: Shuai Wang, Jin Chen, Yuhan Rao, Licong Liu, Wenqing Wang, Qi DongAbstract:Abstract Spring frost is one of the major weather-related threats to Winter Wheat. The damage to Winter Wheat caused by spring frost is aggravated by the increase in extreme weather events and the advance of spring phenology driven by a warming climate. Until recently, studies of frost damage were primarily based on controlled field experiments and crop model simulations, which cannot accurately represent the real frost damage suffered by Winter Wheat in the natural environment. In this study, a remote sensing-based spring frost damage index (SFDI) was proposed to rapidly and effectively quantify the impact of spring frost on Winter Wheat at the provincial scale. Compared with the existing methods, the SFDI is easy to implement with widely available remotely sensed vegetation index (VI) time-series data. It can be used to assess spring frost damage to Winter Wheat in near real-time to allow a rapid response. Although the SFDI was developed for Winter Wheat and spring frost, it has the potential to be extended to other agricultural hazards and crop types through careful adjustments to the design. We assessed the performance of SFDI using a spring frost event that occurred from April 3–7, 2018, in North China as a case study. The results showed that the severely damaged areas were mainly located at the junction of Hebei, Henan, and Shandong provinces, especially in western Shandong Province. The result showed good agreement with the proxy data retrieved from the national archives of regional newspaper reports about the event. The validity of the new index (SFDI) was also verified against the reduction in county-level crop production. Additionally, we used multivariate linear regression (MLR) and geographically weighted regression (GWR) to identify the key factors affecting the spatial variation in SFDI. The results indicated that the growth status of Winter Wheat before spring frost and the amount of precipitation during the frost event were the two major factors affecting the severity of frost damage to Winter Wheat, followed by the accumulated frost degree-days and soil moisture. This suggests that proper management of the crop growth rate after Winter Wheat greening and adequate soil moisture (from irrigation and precipitation) before and during the spring frost period could greatly alleviate the damage of spring frost to Winter Wheat.
Yan Zhu - One of the best experts on this subject based on the ideXlab platform.
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Estimating spring frost and its impact on yield across Winter Wheat in China
Agricultural and Forest Meteorology, 2018Co-Authors: Liujun Xiao, Leilei Liu, Senthold Asseng, Yuming Xia, Liang Tang, Bing Liu, Weixing Cao, Yan ZhuAbstract:Abstract Frost events in spring pose a serious threat to Wheat production in China. These events coincide with late vegetative stages and reproductive development, which are sensitive to frost stress. To understand the spatio-temporal pattern of spring frost and its impact on Winter Wheat yield, we calculated the accumulated frost degree-days (AFDD) as an index for frost risk affecting yield. Additional indices to characterize the spring frost risk included accumulated frost days and temperature-drop-rate. These indices were calculated for the growth period from stem elongation to flowering with historical data collected from 161 stations across the main Winter Wheat growing area in China from 1981 to 2009. Frost risk is smaller in the cooler northern and warmer southern regions than in the central Winter Wheat growing region of China. Huang-Huai Subregion (HHS) has the greatest frost duration, intensity and suffers the largest yield losses due to spring frost. Frost risk during stem elongation to flowering has not been significantly decreased in the Winter Wheat-growing regions of China under climate warming. While rising temperature reduces frost events in general, it also accelerates Wheat phenology which increases the risk of spring frost. Quantifying future trends and impacts of spring frost damage on Wheat production will be critical for developing appropriate adaptation and mitigation strategies for food availability in China and other regions of the world affected by frost.
Kevin R Kosola - One of the best experts on this subject based on the ideXlab platform.
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red clover trifolium pratense suppression of common ragweed ambrosia artemisiifolia in Winter Wheat triticum aestivum
Weed Technology, 2003Co-Authors: Dale R Mutch, Todd E Martin, Kevin R KosolaAbstract:Common ragweed is an annual weed problem after Winter Wheat harvest in southwest Michigan. Although an interseeded cover crop of red clover is known to reduce weed populations in Winter Wheat stubble, the most effective rates and cultivars for weed suppression under Michigan conditions have not been identified. Three red clover cultivars were planted in March at three seeding rates in established Winter Wheat; after Wheat harvest, a section of each plot was mowed to mimic forage harvest of clover. The experiment was repeated in 2 yr. Mowing significantly reduced common ragweed biomass each year. All cultivars and seeding rates were equally effective at significantly reducing common ragweed biomass in each year, despite the variation among years, cultivars, seeding rates, and mowing treatments in production of clover biomass. Nomenclature: Common ragweed, Ambrosia artemisiifolia L. ;ns3 AMBEL; red clover, Trifolium pratense L.; Winter Wheat, Triticum aestivum L. Additional index words: Cover crops, weed ma...
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red clover trifolium pratense suppression of common ragweed ambrosia artemisiifolia in Winter Wheat triticum aestivum 1
Weed Technology, 2003Co-Authors: Dale R Mutch, Todd E Martin, Kevin R KosolaAbstract:Common ragweed is an annual weed problem after Winter Wheat harvest in southwest Michigan. Although an interseeded cover crop of red clover is known to reduce weed populations in Winter Wheat stubble, the most effective rates and cultivars for weed suppression under Michigan conditions have not been identified. Three red clover cultivars were planted in March at three seeding rates in established Winter Wheat; after Wheat harvest, a section of each plot was mowed to mimic forage harvest of clover. The experiment was repeated in 2 yr. Mowing significantly reduced common ragweed biomass each year. All cultivars and seeding rates were equally effective at significantly reducing common ragweed biomass in each year, despite the variation among years, cultivars, seeding rates, and mowing treatments in production of clover biomass. Nomenclature: Common ragweed, Ambrosia artemisiifolia L. ;ns3 AMBEL; red clover, Trifolium pratense L.; Winter Wheat, Triticum aestivum L. Additional index words: Cover crops, weed ma...