AMMI-Biplot analysis of yield stability and test-site representativeness of proso-millet cultivars Studies on the Relationship between the Range of Seeding Dates and the Yield Stability of Some New Octoploid Triticale cultivars Selecting strategy at generations for improving stability, adaptability of wheat variety Application of GGE biplot in spring wheat yield stability analysis in rainfed areas of China The Yield Stability of the Hybrids Between Pocockia ruthenica and Medicago sativa