Summary results and individual trial results from the International Late Yellow Hybrid - ILYH, (Tropical Three and Double Way Crosses Yellow Late Normal and QPM Hybrid Trial - TTWCYL) conducted in 2011.
Summary results and individual trial results from the International Late White Hybrid-ILWH, (Tropical Three and Double Way Crosses White Late Normal and QPM Hybrid Trial - TTWCWL) conducted in 2011.
Summary results and individual trial results from the International Late Yellow Hybrid - ILYH, (Elite Tropical Late Yellow Normal and QPM Hybrid Trial - CHTTY) conducted in 2011.
Summary results and individual trial results from the International Late White Hybrid - ILWH, (Elite Tropical Late White Normal and QPM Hybrid Trial - CHTTW) conducted in 2011.
The CIMMYT Global Wheat Program disseminates promising wheat breeding lines through screening nurseries and yield trials on a worldwide basis through a system known as the International Wheat Improvement Network (IWIN). C45IBWSN was genotyped with Australia DArTSeq and phenotyped for grain yield and phonological traits under optimally irrigated, drought and heat stress environments. The genotypic and phenotypic data was used for GWAS. Manuscript is under review in Nature Scientific Reports.
In agriculture and plant breeding, multi-environment trials over multiple years are conducted to evaluate and predict genotypic performance under different environmental conditions, and to analyze, study, and interpret genotype × environment interaction (G×E). In this study, we propose a hierarchical Bayesian formulation of a linear-bilinear model, where the conditional conjugate prior for the bilinear (multiplicative) G×E interaction term is the matrix von Mises-Fisher distribution (with environments and sites defined as synonymous). A hierarchical normal structure is assumed for linear effects of genotypes and sites, and priors for precision parameters are assumed to follow gamma distributions. Bivariate Highest Posterior Density (HPD) regions for the posterior multiplicative components of the interaction are shown within the usual biplots. Simulated and real maize breeding multi-site data sets were analyzed. Results showed that the proposed model facilitates identifying groups of genotypes and sites that cause G×E across years and within years, since the hierarchical Bayesian structure allows using plant breeding data from different years by borrowing information among them. This model offers the researcher valuable information about the G×E interaction patterns not only for each one-year period of the breeding trials but also for the general process that originates the response across these periods.
The International Bread Wheat Screening Nursery (IBWSN) is designed to rapidly assess a large number of advanced generation (F3-F7) lines of spring bread wheat under Mega-environment 1 (ME1) which represents diversity for a wide range of latitudes, climates, daylengths, fertility conditions, water management, and (most importantly) disease conditions. The distribution of these nurseries is deliberately biased toward the major spring wheat regions of the world where the diseases of wheat are of high incidence. It is distributed to 180 locations and contains 300-450 entries.
The International Bread Wheat Screening Nursery (IBWSN) is designed to rapidly assess a large number of advanced generation (F3-F7) lines of spring bread wheat under Mega-environment 1 (ME1) which represents diversity for a wide range of latitudes, climates, daylengths, fertility conditions, water management, and (most importantly) disease conditions. The distribution of these nurseries is deliberately biased toward the major spring wheat regions of the world where the diseases of wheat are of high incidence. It is distributed to 180 locations and contains 300-450 entries.
The International Bread Wheat Screening Nursery (IBWSN) is designed to rapidly assess a large number of advanced generation (F3-F7) lines of spring bread wheat under Mega-environment 1 (ME1) which represents diversity for a wide range of latitudes, climates, daylengths, fertility conditions, water management, and (most importantly) disease conditions. The distribution of these nurseries is deliberately biased toward the major spring wheat regions of the world where the diseases of wheat are of high incidence. It is distributed to 180 locations and contains 300-450 entries.
The International Bread Wheat Screening Nursery (IBWSN) is designed to rapidly assess a large number of advanced generation (F3-F7) lines of spring bread wheat under Mega-environment 1 (ME1) which represents diversity for a wide range of latitudes, climates, daylengths, fertility conditions, water management, and (most importantly) disease conditions. The distribution of these nurseries is deliberately biased toward the major spring wheat regions of the world where the diseases of wheat are of high incidence. It is distributed to 180 locations and contains 300-450 entries.