EFFECT OF SEED WEIGHTS AND PRETREATMENTS ON SEED GERMINATION SEEDLING AND GROWTH OF Pistacia Khinjuk (stock)

Abstract

This study was conducted to investigate the effect of seed wight ,scarification and chilling at - 6±2 c for three period vis . 0 ,24 and 48 hour .The results revealed the superior of the seed weight 40-45 mg in alls character studied and gave high average of germination energy ,germination percentage , seedling length numbre of leaves and dry weight of stem and leaves (53.82%,32.80% ,29.25 cm,23.27 and 3.42 gm,4.34 gm). The scarification seeds showed superiority in all characters except the dry weight of stem and giving highest averge of germination energy 51.62% germination percentage 35.12 %,seedling length 28.41 cm number of leave 24.41 and dry weight of leave 5.10 gm . The chilling period 48 hour was superioir in alls character germination energy 51.18% germination percentage 35.53% , seedling length 32.12 cm , number of the leave 26.56 ,dry weight of stem3.12 gm and leave 4.70 gm . The interaction weight 40-45 mg scarification, interaction weight 40-45 mg chilling period 48 hour, The interaction scarification and chilling period 48 hour were the best interactions in all characters.