Periodic evaluation of genetic improvement crop cultivars is useful, both as a demonstration the importance plant breeding to public and way identifying traits or target environments that may require increased efforts by breeders. Evaluation from different eras in common environment most direct several methods have been used estimate progress. Thirty‐five hard red winter wheat ( Triticum aestivum L. em. Thell.) introduced released between ca. 1874 1987 were evaluated experiments at three...

Wheat with virus-like symptoms (extracts containing a 33-kDa protein in sodium dodecyl sulfate-polyacrylamide gel electrophoresis, negative enzyme-linked immunosorbent assay to wheat streak mosaic virus, and not infectious backassay other wheat) reacted positively antiserum made against purified from symptomatic corn infected the High Plains virus (HPV), indicating serological relationship between pathogens. The curl mite (WCM, Aceria tosichella Keifer) was identified as vector of caused...

Triticum mosaic virus (TriMV) is a newly discovered found infecting wheat (Triticum aestivum) in Kansas. This study was conducted to determine if the curl mite (WCM, Aceria tosichella) and bird cherry oat aphid (Rhopalosiphum padi) could transmit TriMV. Using different sources of WCM two isolates TriMV, we were able show vector Field analysis by enzyme-linked immunosorbent assay (ELISA) demonstrated natural infection patterns infected with Wheat streak (WSMV), or both TriMV WSMV, putatively...

In 2006, a mechanically-transmissible and previously uncharacterized virus was isolated in Kansas from wheat plants with mosaic symptoms. The physiochemical properties of the were examined by purification on cesium chloride density gradients, electron microscopy, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), sequencing nucleotides amino acids coat protein, immunological reactivity. Purified preparations contained flexuous, rod-shaped particles that resembled...

‘Mace’ (Reg. No. CV‐1027, PI 651043) hard red winter wheat ( Triticum aestivum L.) was developed by the USDA‐ARS and Nebraska Agricultural Experiment Station released in December 2007. Mace selected from cross Yuma//PI 372129/3/CO850034/4/4*Yuma/5/(KS91H184/Arlin S//KS91HW29/3/NE89526). primarily for its resistance to Wheat streak mosaic virus (WSMV) adaptation rainfed irrigated production systems adjacent areas northern Great Plains. derived a head selection made heterogeneous, terms of...

ABSTRACT Polyphenol oxidase (PPO) has been related to an undesirable brown discoloration of wheat‐based end products. Consumer acceptance and product quality are generally decreased by the darkening phenomena. Two sets wheat samples ( Triticum aestivum L.) were investigated for variation in grain flour PPO levels. Samples included 40 advanced experimental hard white winter lines grown at two Kansas locations 10 red genotypes three Nebraska locations. The variability activities was influenced...

Wheat yields often are limited by infection streak mosaic virus (WSMV). Host plant resistance to WSMV can reduce losses. This study was conducted characterize a new source of temperature-sensitive found in CO960293 wheat. The the is unknown. Parental and other wheat lines were tested for using 51 isolates under different temperatures determine stability resistance, yield trials field 3 years. All parental became infected at all infective back assay ‘Tomahawk’ No isolate defeated 18°C. Yield...

Sorghum [ bicolor (L.) Moench] hybrids resistant to Biotype E greenbug Schizaphis graminum (Rondani)] had more damage than expected when heavily infested with greenbugs daring August, 1990. Greenbugs isolated from severely damaged plants of sorghum in Stevens County, Kansas, were tested for virulence Biotype‐E cultivars and lines sorghum, wheat ( Triticum aestivum L.), barley Hordeum vulgare oat Arena sativa rye Secale cereale L.). Greenhouse tests involving seedling indicated that the fines...

Wheat streak mosaic virus (WSMV) infection reduces seed yield and quality in wheat. These losses can be alleviated significantly by exploiting genetic host plant resistance. A new source of temperature-sensitive resistance to WSMV, KS03HW12, its parental lines (KS97HW29/ KS97HW131//KS96HW100-5) were evaluated both greenhouse field conditions. Parental wheat exposed WSMV pressure under different temperatures growth chambers determine the stability resistance, 2 years trials conducted confirm...

To date, only one gene conferring resistance to Wheat streak mosaic virus (WSMV) designated as Wsm1 was transferred from Thinopyrum intermedium (Host) Barkworth and Dewey wheat ( Triticum aestivum L.) in the form of a compensating Robertsonian translocation T4DL·4J s S. confers high levels WSMV under field conditions; however, certain genetic backgrounds environments, presence S reduces agronomic performance. The objective this study shorten Th. segment translocation. We recovered proximal...

Seventeen synthetic hexaploid (SH) wheats, derived from crosses between six tetraploid Triticum species and a diverse group of diploid T. tauschii (Coss.) Schmal., were evaluated for resistance to biotype D Hessian fly, Mayetiola destructor (Say). Resistance was identified in four the SH wheats. Based on rections × parental larval feeding, specific lines . Other homozygous susceptible. wheats expressed as antibiosis that larvae died first instar development. Two resistant crossed with...

High Plains virus (HPV) isolates from Colorado, Idaho, Kansas, Texas, and Utah were serologically related, had similar relative molecular masses (sodium dodecyl sulfate-polyacrylamide gel electrophoresis) for the 32-kDa diagnostic HPV protein, transmissible maintained free of Wheat streak mosaic (WSMV) by vascular puncture inoculation. Collections wheat curl mites (Aceria tosichella Keifer; WCM) Montana, Nebraska, South Dakota, Texas differentially transmitted these isolates. For collections...

Relative outcrossing (OC) rates with a mixture of awnless pollinators were determined for 12 hard red winter wheat ( Triticum aestivum L.) cultivars during the crop years 1982 through 1984 at Hays, KS. Significant differences among measured within and averaged over years. The OC rate ranged from 0.1 to 5.6% individual in given year. semidwarf experimental line, KS75210, its sister selection, ‘Newton’, had highest 3‐yr average rate, 3.1 2.1%, respectively, whereas standardheight cultivar,...

Concern has been expressed that recently released hard red winter wheat ( Triticum aestivum L.) cultivars have inferior milling and baking quality when compared with older cuitivars. This concern results from recent experiences in some commercial bakeries, as well negative correlations between grain yield protein concentration commonly reported for cereal crops. We evaluated traits of 40 genotypes, representing the past 70 yr cultivar release, using harvested replicated experiments at three...

Journal Article Resistance to Biotype C Greenbug in Synthetic Hexaploid Wheats Derived from Triticum tauschii Get access T. L. Harvey, Harvey Kansas State University, Experiment Station, Hays 67601 Search for other works by this author on: Oxford Academic PubMed Google Scholar J. Martin, Martin R. W. Livers of Economic Entomology, Volume 73, Issue 3, 1 June 1980, Pages 387–389, https://doi.org/10.1093/jee/73.3.387 Published: 01 1980 history Received: 11 December 1979

ABSTRACT Wheat ( Triticum aestivum L.) yield is limited by wheat streak mosaic virus which vectored the curl mite (WCM) Aceria tosicheilla (Keifer). Host resistance to WCM has reduced losses. This study was conducted evaluate effectiveness of in collected from various locations Great Plains. Collections Montana, Nebraska, South Dakota, Texas, Alberta, Canada, and eight Kansas were compared for their ability survive reproduce greenhouse on seven lines relatives previously identified as...

Backcross populations derived from direct hybrids between common wheat ( Triticum aestivum L.) and the wild diploid T. tauschii (Coss.) Schmal. have utility for germplasm evaluation, but also can furnish genetic material directly into a germplasm‐enhancement program. Three hundred ninety‐one BC 2 F ‐derived lines winter × crosses were selected on basis of disease resistance general phenotype undergoing field evaluation to determine whether resistant agronomically similar or superior their...