2003年以来我所先后育成毕单系列优质杂交玉米品种毕单13号、毕单15号、毕单17号和毕单18号,这几个品种高产稳产,品质好,抗逆性强,适应性广,是贵州山区目前较理想的杂交玉米新品种。近3年,通过对毕单列杂交玉米品种在海南高产制种技术的试验 Since 2003, we have successfully completed the completion of a single series of high quality hybrid corn maize series Bi No. 13, Bi No. 15, Bi No. 17 and Bi No. 18, these varieties have high and stable yield, good quality and strong resistance to adaptation Wide, is the mountainous region of Guizhou is now the ideal hybrid new varieties of corn. In the past three years, the test of high-yielding seed production techniques for maize varieties of Bi-Lieding hybrid in Hainan was adopted