TY - JOUR AN - 004078610 PY - 2005/01/01 TI - Combining ability and heterotic grouping of CIMMYT subtropical quality protein maize lines JO - Scientia Agricultura Sinica VL - 38 IS - 4 SP - 671 EP - 677 UR - https://eurekamag.com/research/004/078/004078610.php ER -