بررسي نقش همزيستي ميكوريزي در روابط آبي و برخي تركيبات اسموليت سه پايه پسته (سرخس، بنه باغي و ابارقي) در شرايط تنش شوري

Role of mycorrhizal Symbiosis on water relations and some osmolytes of three pistachio rootstocks (Sarakhs, Bane-baqi and Abareqi) under salt stress.

ﺑﻪﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺗﺎﺛﯿﺮ ﻫﻤﺰﯾﺴﺘﯽ ﻗﺎرچ ﻣﯿﮑﻮرﯾﺰ آرﺑﺴﮑﻮﻻر )Glomus mosseae( و ﻣﻘﺎﯾﺴﻪ ﺳﻪ ﭘﺎﯾﻪ ﭘﺴﺘﻪ از ﻧﻈﺮ ﻣﻘﺎﯾﺴﻪ رواﺑﻂ آﺑﯽ و ﺗﺠﻤﻊ ﺑﺮﺧﯽ از ﺗﺮﮐﯿﺒﺎت اﺳﻤﻮﻟﯿﺖ ﺗﺤﺖ ﺳﻄﻮح ﻣﺨﺘﻠﻒ ﺗﻨﺶ ﺷﻮري، آزﻣﺎﯾﺸﯽ ﮔﻠﺨﺎﻧﻪ اي در ﻗﺎﻟﺐ ﻃﺮح ﮐﺎﻣﻼ ﺗﺼﺎدﻓﯽ و ﺑﻪ ﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ ﺑﺎ ﺳﻪ ﻓﺎﮐﺘﻮر ﻣﯿﮑﻮرﯾﺰ در دو ﺳﻄﺢ )ﻣﯿﮑﻮرﯾﺰ و ﺑﺪون ﻣﯿﮑﻮرﯾﺰ(، ﺷﻮري آب آﺑﯿﺎري در ﭼﻬﺎر ﺳﻄﺢ )10 ،5 ،0/5 و 15 دﺳﯽ زﯾﻤﻨﺲ ﺑﺮ ﻣﺘﺮ( و ﭘﺎﯾﻪ در ﺳﻪ ﺳﻄﺢ )ﺳﺮﺧﺲ، اﺑﺎرﻗﯽ و ﺑﻨﻪ ﺑﺎﻏﯽ( ﺑﻪ اﺟﺮا درآﻣﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﺑﺎ ﮐﺎﻫﺶ ﻣﺤﺘﻮاي آب ﮔﯿﺎه )ﭘﺘﺎﻧﺴﯿﻞ اﺳﻤﺰي ﺑﺮگ و ﻣﺤﺘﻮاي ﻧﺴﺒﯽ آب ﺑﺮگ( ﻏﻠﻈﺖ ﺗﻨﻈﯿﻢ ﮐﻨﻨﺪه ﻫﺎي اﺳﻤﺰي )ﻗﻨﺪﻫﺎي ﻣﺤﻠﻮل، ﭘﺮوﻟﯿﻦ و ﮔﻼﯾﺴﯿﻦ ﺑﺘﺎﺋﯿﻦ( اﻓﺰاﯾﺶ ﯾﺎﻓﺖ. ﺗﻔﺎوت ﺑﯿﻦ ﭘﺎﯾﻪ ﻫﺎي اﺳﺘﻔﺎده ﺷﺪه در اﯾﻦ آزﻣﺎﯾﺶ ﻣﻤﮑﻦ اﺳﺖ ﺑﻪ دﻟﯿﻞ ﻣﺘﻔﺎوت ﺑﻮدن آﺳﺘﺎﻧﻪ ﺗﺤﻤﻞ ﭘﺎﯾﻪ ﻫﺎي ﻣﺨﺘﻠﻒ در ﺑﺮاﺑﺮ ﺗﻨﺶ ﺷﻮري و ﺗﻔﺎوت در ﻫﻤﺰﯾﺴﺘﯽ آن ﻫﺎ ﺑﺎ ﻗﺎرچ ﻣﯿﮑﻮرﯾﺰ آرﺑﺴﮑﻮﻻر )Glomus mosseae( ﺑﺎﺷﺪ. ﭘﺎﯾﻪ ﺑﻨﻪ ﺑﺎﻏﯽ ﻧﺴﺒﺖ ﺑﻪ دو ﭘﺎﯾﻪ دﯾﮕﺮ داراي ﻣﺤﺘﻮاي آب ﻧﺴﺒﯽ ﺑﺮگ ﺑﺎﻻﺗﺮ و ﭘﺘﺎﻧﺴﯿﻞ اﺳﻤﺰي ﺑﯿﺸﺘﺮي )ﮐﻤﺘﺮ ﻣﻨﻔﯽ( ﺑﻮد و از ﻧﻈﺮ ﺗﺤﻤﻞ ﺑﻪ ﺷﻮري آب آﺑﯿﺎري در وﺿﻌﯿﺖ ﺑﻬﺘﺮي ﻗﺮار داﺷﺖ.

In order to investigate the role of arbuscular mycorrhizal symbiosos (Glomus mosseae) on water relations and some osmolytes accumulation in three pistachio rootstocks under different salt stress levels, a greenhouse expriment was achieved based on completely rhandomized design (CRD) az factoriel with three factors of mycorrhizae at two levels (with and without mycorrhizae). Saltness of irrigation water at four levels (0.5, 5, 10 and 15 dSm-1) and rootstocks at three levels (Sarakhs, Abareqi and Bane-baqi) Resalts showed than water relations parameters ( Leaf osmotic potential and relative water content)and osmoregulators concentration wew changed as the effect of salinite. Mycorrhizal sambiosis improved water relations of treated plants in comparison with non-mycorrhizal plants especially at higher salt intensities, used pistachio rootstocks in this experiment showed different responses to salt stress levels which can be attributed to their genetic traits and mycorrhizal symbiosis extent. Bane-baqi had higher leaf relative water content and osmotic potential (less ngative) and showed more resistant to salt stress in camparison with two other rootstocks.