000 00438 a2200145 4500
080 _a581.1:631.557(063)
_bE 13 P
245 1 _aPhysiological aspects of crop yield
_bProceedings
_cedited by J.D. Eastin, et. al.
260 _aU.S.A.
_bAmerican Society of Agro. Crop Science Society of America
_c1969
650 _aPlant Physiology
650 _aCrop Yield
650 _a/Crop Science
100 _a
_d
300 _a396 p.
901 _a105178
999 _c34197
_d34197