تأثير إزالة الغلاف و التنضيد و حامض الجبرليك (GA3)‎ في إنبات البذور لثلاثة أصناف من البندق Corylus avellana L.

الملخص EN

This experiment conducted to study the effect of three factoes, seeds coat removal, four periods of stratification (0, 60, 90 and 120 days) and three concentration of Gibberllic acid (0,250 and 500 mg.

lit.

-1) on seed germination of three cultivars (Emadia (local cultivar) Barcelona and Kenttish Cob) of Hazelnut (Corylus avellana L.).

The results asserted that the Emadia seeds cultivar with endocarp coat days which had been soaked in 500 mg / lit-1 GA3 solution for 24 hours and stratified for 120 days at (5C° ± 1) increased significantly the seed germination and brought out the highest percentage of germination among all treatments reached to 80 %.

Barcelona seeds with endocarp coat were stratified for 90 days which had been soaked in 250 mg / lit-1 GA3 solution gave 50 % percentage of germination .While Kinttish Cob seeds with or without endocarp coat were stratified for 120 days which had been soaked in 500 mg / lit-1 GA3 solution gave lowest % percentage of germination 33.66 and 36.66 respectively.