TY - JA AU - M E Nevado AU - H Z Cross AU - K M Johnson TI - Combining ability related to reduced gene flow among maturity groups within maize populations SN - 1435-0653 PY - 1989/// N1 - AGRIS 90-023442; Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X T2 - Crop Science ER -