مقايسه اثر نمك بر رويش دانه و رشد دانه رست، ميزان پروتئين، ليپيد و فعاليت پراكسيداز و پلي فنل اكسيداز گياه بادام زمينى( Arachis hypogaea ) در پيش تيمارهاى اكسينى

The salinity effects on seed germination and seedling growth, total proteins and lipids , peroxidase and polyphenol oxidase activity of Peanut (Arachis hypogaea) by auxin pretreatment

Peanut (Arachis hypogaea L.) is an important oil seed, food and feed crop in all around the world. Salinity is one of the important stresses which affects all stages of groundnut growth and finally the yield. The cultivated peanut (Arachis hypogaea L.), originates in south america and is not growing in the tropical and warm temperate regions of the world and Iran. In the test 1, the salinity tolerance during germination and early seedling growth was evaluated for peanut seeds at 0, 1.4, 2.8, 5.6, 11.2 and 22.4 g/l NaCl. The salinity stress delayed germination in all treatments. The length of radicles plus hypocotyls decreased with increasing salinity and seedling growth reduced. The results confirm that total proteins and lipids; and peroxidase activity arenʹt affected by increasing salinity but poly phenoloxidase activity are reduced. The data of test 2, showed indole acetic acid pretreatment (passage) increased peanut salt tolerance and age.