000 00239nam a2200085Ia 4500
245 _aCrop Science : Vol 47, (4), 2007
260 _bCrop Sci Soc Am Inc, Madison, U.S.A
082 _aJ38m73,N61 P07.47/V26261
300 _app 1327-1764;S71-S159
999 _c16739
_d16739