Research;
Institute;
of;
Sichuan;
Agricultural;
University//Key;
Laboratory;
Biology;
and;
Genetic;
Improvement;
Maize;
inSouthwest;
Region;
Chinese;
Ministry;
Agriculture;
Chengdu;
611130;
Siehuan;
China;
Life;
Basic;
Sciences;
University;
Ya;
'an;
625014;