00566nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100001800076245011500094260005800209300001000267440004200277650006100319700001600380Para_3552CHAP220125s1928    xx            000 0 und d  a202076  cCHAP  aDetjen, L.  R  aPhysiological dropping of fruits :b in regard to genetic relationship of plants  /c L. R. Detjen, G. F. Gray  aNewark, Delaware  :b Agricultural Experiment Station  a38 p.  aDelaware. Agri. Exp. Sta., Bull.; 157  aArboles frutales  Genética Vegetal  Dropping of fruits  aGray, G. F.