00644nam a2200205 a 450000500170000000800410001702000150005804100080007308200100008110000380009124500760012925000120020526400520021730000310026950000590030065000210035965000160038065000210039665000210041720260717091134.0260717s1979    ii            000 0 eng d  a0521295815  aeng04a571.21 aMilthorpe, F. L. (Frederick Leon)13aAn introduction to crop physiology /cMilthorpe, F. L. (Frederick Leon)  a2nd ed. 1aCambridge :bCambridge University press,c1979.  axi, 244 p. : ill. ; 24 cm.  aPrevious ed.: 1974. Includes bibliographies and index. 4aCrops-Physiology 4aField crops 4aCrops Physiology 4aPlant Physiology