A5041108551- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Crop Yield and Soil Fertility
- Genetic Mapping and Diversity in Plants and Animals
- Plant Disease Resistance and Genetics
- Rice Cultivation and Yield Improvement
- Plant Pathogens and Resistance
- Genetic and phenotypic traits in livestock
- Ion Channels and Receptors
- Agricultural Science and Fertilization
- Plant Micronutrient Interactions and Effects
- Agronomic Practices and Intercropping Systems
- Agricultural Economics and Practices
- GABA and Rice Research
- Remote Sensing in Agriculture
- Smart Agriculture and AI
- Genetic and Environmental Crop Studies
- Plant-Microbe Interactions and Immunity
- Agricultural Innovations and Practices
- Turfgrass Adaptation and Management
- Seed and Plant Biochemistry
- Food Science and Nutritional Studies
- Remote Sensing and LiDAR Applications
- Vietnamese History and Culture Studies
- Hydrology and Drought Analysis
Bayer (United States)
2021-2024
University of Wisconsin–Madison
2019-2023
Bayer (France)
2021-2023
University of Nebraska–Lincoln
2017-2019
Nepal Agricultural Research Council
1997-2010
National Research Council
2007
Synthetic hexaploid wheat (SHW; 2n = 6x 42, AABBDD, Triticum aestivum L.) is produced from an interspecific cross between durum (2n 4x 28, AABB, T. turgidum and goat grass 2x 14, DD, Aegilops tauschii Coss.) reported to have significant novel alleles-controlling biotic abiotic stresses resistance. A genome-wide association study (GWAS) was conducted unravel these loci [marker–trait associations (MTAs)] using 35,648 genotyping-by-sequencing-derived single nucleotide polymorphisms in 123 SHWs....
As one of the key crop traits, plant height is traditionally evaluated manually, which can be slow, laborious and prone to error. Rapid development remote proximal sensing technologies in recent years allows estimated more objective efficient fashions, while research regarding direct comparisons between different measurement methods seems lagging. In this study, a ground-based multi-sensor phenotyping system equipped with ultrasonic sensors light detection ranging (LiDAR) was developed....
Synthetic hexaploid wheat (SHW; Triticum durum L. × Aegilopstauschii Coss.) is a means of introducing novel genes/genomic regions into bread (T. aestivum L.) and potential genetic resource for improving grain mineral concentrations. We quantified 10 minerals (Ca, Cd, Cu, Co, Fe, Li, Mg, Mn, Ni, Zn) using an inductively coupled mass spectrometer in 123 SHWs genome-wide association study (GWAS). A GWAS with 35,648 single nucleotide polymorphism (SNP) markers identified 92 marker-trait...
Plant breeders regularly evaluate multiple traits across environments, which opens an avenue for using in genomic prediction models. We assessed the potential of multi-trait (MT) model through evaluating several strategies incorporating (eight agronomic and malting quality traits) into models with two cross-validation schemes (CV1, predicting new lines genotypic information only CV2, partially phenotyped both phenotypic from correlated barley. The predictive ability was similar single...
Synthetic hexaploid wheat (SHW) is a reconstitution of from its progenitors (Triticum turgidum ssp. durum L.; AABB x Aegilops tauschii Coss.; DD) and has novel sources genetic diversity for broadening the base elite bread (BW) germplasm (T. aestivum L). Understanding population structure SHWs will facilitate their use in breeding programs. Our objectives were to understand compare with BW cultivars demonstrate potential broaden modern germplasm. The genotyping-by-sequencing SHW provided...
Moderate heat stress accompanied by short episodes of extreme during the post-anthesis stage is common in most US wheat growing areas and causes substantial yield losses. Sink strength (grain number) a key limiting factor modern varieties. Increasing spike fertility (SF) improving partitioning assimilates can optimize sink which essential to improve potential under hot humid environment. A genome-wide association study (GWAS) allows identification novel quantitative trait loci (QTLs)...
Spot blotch is an important disease of wheat (Triticum aestivum L.) in South Asia. Division test sites for this into homogenous subregions expected to contribute more efficient evaluation and better differentiation cultivars. Data from a collaborative regional program Asia conducted by CIMMYT were analyzed group testing relatively spot area under the progress curve (AUDPC). Five-year data eight locations Eastern Gangetic Plains Nursery (EGPSN) five Yield Trial (EGPYT) three countries (India,...
Winter wheat ( Triticum aestivum L.) yield produced in Nebraska is often inconsistent, mainly due to environmental variability. Managing production practices could partially mitigate this problem. The objective of study was determine the effects seeding rate (0.5, 1, and 2 times normal rate), genotype (6), topdressed nitrogen (0 34 kg N ha −1 at flag leaf stage) on agronomic characteristics winter wheat. Experiments were conducted under rainfed conditions Agronomy Research Farm (ARF;...
Abstract Development of winter wheat ( Triticum aestivum ) synthetics started at CIMMYT-Mexico in 2004, when durum turgidum germplasm from Ukraine and Romania was crossed with Aegilops tauschii accessions the Caspian Sea region. Chromosomes were doubled after pollination embryo rescue, but chromosome number cytological validation not performed. F 2 populations grown Mexico shipped to Turkey 2008. During 2009–2015, these subjected rigorous pedigree selection under dry, cold, disease-affected...
Automated phenotyping technologies are continually advancing the breeding process. However, collecting various secondary traits throughout growing season and processing massive amounts of data still take great efforts time. Selecting a minimum number that have maximum predictive power has potential to reduce efforts. The objective this study was select principal features extracted from UAV imagery critical growth stages contributed most in explaining winter wheat grain yield. Five dates...
Genetic resistance against biotic stress is a major goal in many wheat breeding programs. However, modern cultivars have limited genetic variation for disease and pest there always possibility of the evolution new diseases pests to overcome previously identified genes. A total 125 synthetic hexaploid wheats (SHWs; 2n = 6x 42, AABBDD, Triticum aestivum L.) were characterized fungal pathogens that cause rusts (leaf; Puccinia triticina, stem; P. graminis f.sp. tritici, stripe; striiformis...
Abstract Controlling spatial variation in agricultural field trials is the most important step to compare treatments efficiently and accurately. Spatial variability can be controlled at experimental design level with assignment of units modeling use corrections other strategies. The goal this study was efficiency methods used control a wide range scenarios using simulation approach based on real wheat data. Specifically, classic designs without two-dimensional autoregressive correction were...
Fine-tuning production inputs such as seeding rate, nitrogen (N), and genotype may improve end-use quality of hard red winter wheat (Triticum aestivium L.) when growing conditions are unpredictable. Studies were conducted at the Agronomy Research Farm (ARF; Lincoln, NE, USA) High Plains Agricultural Laboratory (HPAL; Sidney, in 2014 2015 Nebraska, USA, to determine effects (6), environment (4), rate (3), flag leaf top-dressed N (0 34 kg ha-1 ) on wheat.End-use traits influenced by...
Abstract Increasing the response to selection in plant breeding programs by reducing time required complete a generation of inbreeding can significantly shorten release cultivar. Recently, ‘speed breeding’ strategies that manage temperature, photoperiod, and micronutrients showed significant reduction several crops. The goal this study was determine if speed system be effectively applied oat ( Avena sativa L.) for single‐seed descent scheme seeds harvested early with acceptable germination...
Abstract Background Chile peppers ( Capsicum spp.) are among the most important horticultural crops in world due to their number of uses. They considered a major cultural and economic crop state New Mexico United States. Evaluating genetic diversity current Mexican germplasm would facilitate improvement for different traits. This study assessed diversity, population structure, linkage disequilibrium (LD) 165 chile pepper genotypes using single nucleotide polymorphism (SNP) markers derived...
Breeding programs for purple wheat are underway in many countries but there is a lack of information on the effects Pp (purple pericarp) genes agronomic and quality traits variable environments along product chain (grain-flour-bread). This study was based unique material: two pairs isogenic lines spring cv. Saratovskaya-29 (S29) background differing only grain color. In 2017, seven experiments were conducted Kazakhstan, Russia, Turkey with focus genotype environment interaction and, 2018,...
Abstract Helminthosporium leaf blight (HLB) is the most important disease constraint to wheat (Triticum aestivum L.) cultivation in eastern Gangetic Plains of South Asia. A Monitoring Nursery (HMN) including potential adapted and exotic sources HLB resistance was developed Bangladesh, India Nepal assess stability genetic across locations. The 8th, 9th 10th HMN assessed agronomic traits 17 genotypes 20 environments 1999‐2000, 2000‐2001 2001‐2002 cropping seasons, respectively. area under...
Exploiting genetically diverse lines to identify genes for improving crop performance is needed ensure global food security. A genome-wide association study (GWAS) was conducted using 46,268 SNP markers on a panel of 143 hexaploid bread and synthetic wheat potential genes/genomic regions controlling agronomic (yield 26 yield-related traits), disease resistance, grain quality traits. From phenotypic evaluation, we found large genetic variation among the 35 traits recommended five having high...
Abstract Background Phytophthora root rot, a major constraint in chile pepper production worldwide, is caused by the soil-borne oomycete, capsici . This study aimed to detect significant regions Capsicum genome linked rot resistance using panel consisting of 157 spp. genotypes. Multi-locus wide association (GWAS) was conducted single nucleotide polymorphism (SNP) markers derived from genotyping-by-sequencing (GBS). Individual plants were separately inoculated with P. isolates, ‘PWB-185’,...
A number of exotic wheat (Triticum aestivum) genotypes resistant to spot blotch caused by Cochliobolus sativus are being used improve the resistance commercial cultivars in warm regions South Asia. The objective present study was determine inheritance field two (R) genotypes, 'Chirya.3' and 'Milan/Shanghai #7' (MS#7), which were crossed a susceptible (S) cultivar, 'BL1473.' also allelic relationships for between them. Spot severity recorded on parents F1, F2, F3 progenies. F1 plants from...