The average heterosis of the grain yield per plant is 75.79%, 57.67% and 12.55% in the hybrids of the common wheat with spelt wheat, club wheat and itself respectively.

• 普通小麦与斯卑尔脱小麦的种间杂种每株产量的平均杂种优势为75.；79%25；普通小麦与密穗小麦的种间杂种每株产量的平均杂种优势为57