WINTER TRITICALE AD-17-B (2n=6x=42) - A MAIN DONOR OF GENES FOR SHORT STEM, LONG SPIKES, HIGH PROTEIN CONTENT IN GRAIN AND PROGRESSING MEIOSIS STATUS OF PMC

摘要

A new original triticale AD-17-B (2n=6x=42) was developed: carrier of genes for short stem (75-80 cm), incomplete dominant inheritance of plant height in F_1 (degree of dominance d/a from +0.41 to +0.54), long spikes (17-18 cm) - inheritance of spikelength in F_1 was incomplete dominant towards the parental component with longer spikes (degree of dominance d/a from +0.34 to +0.75), high protein content in grain (18-19 %) - dominant inheritance in F_1 (degree of dominance d/a from +0.90 to +1.09), peculiarities of PMC meiosis - winter triticale AD-17-B (2n=6x=42) had the lowest mean percent of PMC meiosis disturbances (44.66 %), that of the Mexican triticale AD-No 6 (2n=12) (Armadillo) being 55.51 %, considered to be one of the greatest breeding achievements of CIMMYT (Mexico) with high spike fertility.