EFFECTS OF RADICULE TIP PINCHING AND GIBBERELLIC ACID ON THE GROWTH OF CONTAINER GROWN PISTACIA SEEDLINGS UNDER THE GLASSHOUSE CONDITIONS
From the stand point of the growth of above ground parts Siirt and Ohadi have given superior seedlings. P.terebinthus had the most heaviest root system. Both the number and length of the tap roots were higher in P.atlantica than those of the other experimental seed sources. The effects of GA3 were found unstable. Radicule pinching did not effect the dry weight of the roots.