Analysis to nondormancy alfalfa character in breeding selection for excellent individuals

Characteristics that affected plant quality of selected nondormancy alfalfa plants were analyzed with data collected during the seed maturing period. The multi-recursion determination coefficient d was 0.846 7. This indicates that alfalfa biological yield is associated with almost main characters, including the number of total branches and the number of branches with seeds, plant height, length of inflorescences, the number of branch knots, the number of total inflorescences with seeds per branch. The multiple regression equation of alfalfa individual weight with the nine characters in the experiment was y (individual weight)=14.324 9+0.077 2x1(plant height)+0.157 3x2(the number of branches) +0.483 4x3 (the number of branches with seeds) +0.011 2x4 (length of inflorescence) +0.068 7x5 (the number of inflorescence with seeds per branch) +0.032 3x6 (the number of inflorescence with seeds) +0.000 6x7 (stem perimeter) +0.170 2x8(the number of branch knots) +0.427 1x9 (seed yield).