000 00409nam a2200133Ia 4500
008 220214s9999 xx 000 0 und d
100 _aTysdal H M
245 0 _aPolycross progeny performance as an index of the combining ability of alfalfa clones
260 _bJournal of the American Society of Agronomy
_c1948
300 _a293-306
650 _aAlfalfa clones
700 _aCrandall Bliss H
942 _cRE
999 _c45372
_d45372