ﺗﺄﺛﯿﺮ ﮐﺎرﺑﺮد ﻣﺤﻠﻮلﭘﺎﺷﯽ ﺳﺎﻟﯿﺴﯿﻠﯿﮏ اﺳﯿﺪ ﺑﺮ ﺧﺼﻮﺻﯿﺎت ﺑﯿﻮﺷﯿﻤﯿﺎﯾﯽ ﺑﺮگ زﻋﻔﺮان ﺗﺤﺖ ﺗﻨﺶ ﺷﻮري

The effect of application of salicylic acid foliar application on biochemical properties of saffron leaf under salinity stress

ﺳﺎﻟﯿﺴﯿﻠﯿﮏ اﺳﯿﺪﯾﮑﯽ از ﻫﻮرﻣﻮنﻫﺎي ﮔﯿﺎﻫﯽ اﺳﺖ ﮐﻪ ﻧﻘﺶ ﻣﺤﻮري در ﺗﻨﻈﯿﻢ رﺷﺪ و ﻓﺮآﯾﻨﺪﻫﺎي ﻓﯿﺰﯾﻮﻟﻮژﯾﮑﯽ ﮔﯿﺎﻫﺎن اﯾﻔﺎ ﻣﯽﮐﻨﺪ. ﺑﻪﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺗﺄﺛﯿﺮ ﻏﻠﻈﺖﻫﺎي ﻣﺨﺘﻠﻒ ﻫﻮرﻣﻮن ﺳﺎﻟﯿﺴﯿﻠﯿﮏ اﺳﯿﺪ ﺑﺮ ﺧﺼﻮﺻﯿﺎت ﺑﯿﻮﺷﯿﻤﯿﺎﯾﯽ زﻋﻔﺮان ﺗﺤﺖ ﺗﻨﺶ ﺷﻮري در ﺳﺎل زراﻋﯽ 97-98 آزﻣﺎﯾﺸﯽ ﺑﻪﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮكﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار ﺑﻪﺻﻮرت ﮔﻠﺪاﻧﯽ در ﮔﻠﺨﺎﻧﻪ ﺗﺤﻘﯿﻘﺎﺗﯽ ﭘﺮدﯾﺲ اﺑﻮرﯾﺤﺎن داﻧﺸﮕﺎه ﺗﻬﺮان اﻧﺠﺎم ﺷﺪ. ﻓﺎﮐﺘﻮرﻫﺎي آزﻣﺎﯾﺶ ﺷﺎﻣﻞ ﭘﯿﺶ ﺗﯿﻤﺎر ﺑﻨﻪ ﺑﺎ ﻫﻮرﻣﻮن ﺳﺎﻟﯿﺴﯿﻠﯿﮏ اﺳﯿﺪ)ﺷﺎﻫﺪ، ﮐﺎرﺑﺮد ﺑﺎ ﻏﻠﻈﺖ 1 و 2 ﻣﯿﻠﯽ ﻣﻮﻻر( ﺗﻨﺶ ﺷﻮري )ﺷﺎﻫﺪ، 6 و 12 دﺳﯽ زﯾﻤﻨﺲ ﺑﺮ ﻣﺘﺮ ( ﺑﻮدﻧﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ ﺑﯿﺸﺘﺮﯾﻦ ﻣﻘﺪار ﮐﺎرﺗﻨﻮﺋﯿﺪ ﺑﺮگ در ﻣﺤﻠﻮلﭘﺎﺷﯽ ﺑﺮﮔﯽ در ﻏﻠﻈﺖ 2 ﻣﯿﻠﯽ ﻣﻮﻻر و ﺗﺤﺖ ﺗﻨﺶ ﺷﻮري 12 دﺳﯽ زﯾﻤﻨﺲ اﺗﻔﺎق اﻓﺘﺎد 0,47 ﻣﯿﻠﯽﮔﺮم ﺑﺮﮔﺮم وزنﺗﺮ اﺛﺮات ﺳﺎده و اﺛﺮ ﻣﺘﻘﺎﺑﻞ ﺗﻨﺶ ﺷﻮري و ﮐﺎرﺑﺮد ﻫﻮرﻣﻮن ﺑﺮ ﻣﻘﺪار آﻧﺘﻮﺳﯿﺎﻧﯿﻦ ﺑﺮگ زﻋﻔﺮان در ﺳﻄﺢ 1 درﺻﺪ ﻣﻌﻨﯽدار ﺑﻮد. اﺛﺮ ﺳﺎده ﺗﻨﺶ ﺷﻮري ﺑﺮ ﻣﻘﺪار آﻧﺘﻮﺳﯿﺎﻧﯿﻦ ﺑﯿﺸﺘﺮﯾﻦ آﻧﺘﻮﺳﯿﺎﻧﯿﻦ ﺑﺮگ در ﺗﻨﺶ ﺷﻮري 12 دﺳﯽ زﯾﻤﻨﺲ ﺑﺮ ﻣﺘﺮ ﺑﻪ ﻣﻘﺪار 3,52 ﻣﯿﻠﯽﮔﺮم ﺑﺮ ﮔﺮم وزنﺗﺮ ﺑﺮگ ﺑﻮد. ﺑﯿﺸﺘﺮﯾﻦ ﻣﻘﺪار ﭘﺮوﻟﯿﻦ در ﺑﺮگ در ﺗﯿﻤﺎر ﻫﻮرﻣﻮﻧﯽ 2 ﻣﯿﻠﯽ ﻣﻮﻻرﺑﻪ ﻣﻘﺪار 3,03 ﻣﯿﻠﯽﮔﺮم ﺑﺮ ﮔﺮم وزنﺗﺮ ﺑﺮگ و در ﺗﯿﻤﺎر ﺷﺎﻫﺪ ﺑﻪ ﮐﻢﺗﺮﯾﻦ ﺣﺪ ﺧﻮد ﺑﻪ ﻣﻘﺪار 2,36 ﻣﯿﻠﯽﮔﺮم ﺑﺮ ﮔﺮم وزنﺗﺮ ﺑﺮگ ﻣﺸﺎﻫﺪه ﮔﺮدﯾﺪ.

Salicylic acid is a plant hormone that plays a central role in regulating plant growth and physiological processes. In order to investigate the effect of different concentrations of salicylic acid on the biochemical properties of saffron under salinity stress, a factorial experiment was conducted in a randomized complete block design with three replicates in a pot experiment at Aburiihan campus of Tehran University. Experimental factors included pretreatment of corm with salicylic acid (control, 1 and 2 mM concentrations) salinity stress (control, 1 and 2 dS / m). The results showed that the highest leaf carotenoid content in leaf foliar application at 2 mM concentration under 12 dS was 0.47 mg / kg for simple transplants and the interaction between salinity stress and hormone application on saffron leaf anthocyanin levels at level 1. The percentages were significant. Simple effect of salinity stress on anthocyanin content The highest leaf anthocyanin at 12 dS / m was 3.52 mg / g fresh leaf weight. The highest proline content in leaf in 2 mM hormone treatment was 3.03 mg / g. Leaf fresh weight and control treatment were at the lowest level of 2.36 mg / g fresh leaf weight.