اﺛﺮ ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺬر و ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺑﺎ ﺳﻠﻨﻴﻮم ﺑﺮ ﺻﻔﺎت ﻓﻴﺰﻳﻮﻟﻮژﻳﻜﻲ و درﺻﺪ ﺳﻦ زدﮔﻲ ﮔﻨﺪم دﻳﻢ رﻗﻢ آذر 2

Effect of seed priming and foliar application of selenium on physiological traits and Stink bug injury percentage of rainfed wheat Azar 2 cultivar

ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ ﺗﺎﺛﻴﺮ ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺬر ﺑﺎ ﺳﻠﻨﻴﻮم و ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺑﺮ ﺧﺼﻮﺻﻴﺎت ﻓﻴﺰﻳﻮﻟﻮژﻳﻜﻲ و درﺻﺪ ﺳﻦ زدﮔﻲ ﮔﻨﺪم دﻳﻢ، ﻳﻚ آزﻣﺎﻳﺶ ﻣﺰرﻋﻪ اي ﻳﻚ ﺳﺎﻟﻪ ﺑﻪ ﺻﻮرت ﻃﺮح ﺑﻠﻮك ﻫﺎي ﻛﺎﻣﻞ ﺗﺼﺎدﻓﻲ در ﺳﻪ ﺗﻜﺮار در ﺳﺎل 1393 در ﻣﺰرﻋﻪ ﺗﺤﻘﻴﻘﺎﺗﻲ داﻧﺸﮕﺎه آزاد اﺳﻼﻣﻲ اراك اﺟﺮا ﺷﺪ. 12 ﺗﻴﻤﺎر ﺷﺎﻣﻞ ﺷﺎﻫﺪ، ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ آب ﻣﻘﻄﺮ، ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ ﻣﻘﺎدﻳﺮ 1، 2 و 3 ﻣﻴﻠﻲ ﮔﺮم در ﻟﻴﺘﺮ ﺳﻠﻨﻴﻮم ﺑﻪ ﺗﻨﻬﺎﻳﻲ و ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺑﺎ آب ﻣﻘﻄﺮ و ﺳﻠﻨﻴﻮم (ﺳﻠﻨﻴﺖ ﺳﺪﻳﻢ) ﺑﺮرﺳﻲ ﺷﺪ. ﻧﺘﺎﻳﺞ ﻧﺸﺎن داد ﻛﻪ ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺬر ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎشي با آب ﻣﻘﻄﺮ، ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ آب ﻣﻘﻄﺮ ﻫﻤﺮاه ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم، ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ 3 ﻣﻴﻠﻲ ﮔﺮم در ﻟﻴﺘﺮ ﺳﻠﻨﻴﻮم ﻫﻤﺮاه ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم، ﻣﺤﺘﻮي آب ﻧﺴﺒﻲ ﺑﺮگ را ﻧﺴﺒﺖ ﺑﻪ ﺷﺎﻫﺪ اﻓﺰاﻳﺶ دادﻧﺪ. ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ آب ﻣﻘﻄﺮ، ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺑﺎ ﺳﻠﻨﻴﻮم و ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ 2 ﻣﻴﻠﻲﮔﺮم در ﻟﻴﺘﺮ ﺳﻠﻨﻴﻮم ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم، ﻧﺸﺖ ﻳﻮﻧﻲ ﺳﻠﻮل را ﻧﺴﺒﺖ ﺑﻪ ﺷﺎﻫﺪ ﻛﺎﻫﺶ دادﻧﺪ. ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم ﺑﻪ ﺗﻨﻬﺎﻳﻲ و ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ 1 ﻣﻴﻠﻲ ﮔﺮم در ﻟﻴﺘﺮ ﺳﻠﻨﻴﻮم ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم، ﻣﺤﺘﻮي ﻛﻠﺮوﻓﻴﻞ a ﺑﻪ ﻣﻴﺰان 31/4 و 24/2 درﺻﺪ ﻧﺴﺒﺖ ﺑﻪ ﺷﺎﻫﺪ اﻓﺰاﻳﺶ ﻳﺎﻓﺖ. ﭘﺮاﻳﻤﻴﻨﮓ ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم درﺻﺪ ﺳﻦ زدﮔﻲ داﻧﻪ را ﺑﻪ ﻃﻮر ﻣﻌﻨﻲ داري ﻛﺎﻫﺶ داد. ﺑﻴﺸﺘﺮﻳﻦ ﻋﻤﻠﻜﺮد داﻧﻪ از ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺎ 2 ﻣﻴﻠﻲ ﮔﺮم در ﻟﻴﺘﺮ ﺳﻠﻨﻴﻮم ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم ﺣﺎﺻﻞ ﺷﺪ. ﻧﺘﺎﻳﺞ ﭘﻴﺸﻨﻬﺎد ﻣﻲ ﻛﻨﺪ ﻛﻪ از ﻃﺮﻳﻖ ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺬر ﺑﺎ آب ﻣﻘﻄﺮ و ﺑﻪ وﻳﮋه ﺳﻠﻨﻴﻮم در ﻣﻘﺎدﻳﺮ ﻛﻢ ﺗﻮام ﺑﺎ ﻣﺤﻠﻮل ﭘﺎﺷﻲ ﺳﻠﻨﻴﻮم ﻣﻲ ﺗﻮان ﻧﺸﺖ ﻳﻮﻧﻲ و درﺻﺪ ﺳﻦ زدﮔﻲ ﮔﻨﺪم در ﺷﺮاﻳﻂ دﻳﻢ را ﻛﺎﻫﺶ داد.

In order to study the effect of seed priming by selenium and foliar applicationon physiological charactristics and Stink buginjurypercentage of Rainfed wheat, a one yearfieldexperiment was carriedbased on randomized complete block design with three replicates at the Research Station of Islamic Azad University,Arak Branch,in Iran during 2014. Twelve treatments were including control, seed priming with distilled water, priming with rates of 1, 2 and 3 mg/L Se alone; and along with spray of distilled water and Se (Sodum Selenite). The results showed that seed priming along with foliar application of distilled water, seed priming with distilled water plus foliar application of Se, seed priming with 3 mg/L Se along with foliar application of Se, increased the relative water content compared with the control. Seed priming with distilled water, foliar application of Se and seed priming with 2 mg/L Se, plus spray of Se decreased electrolyte leakage compared to the control. Foliar application of Se alone and seed priming with 1 mg/L Se plus spray of Se increased Chl a by 31.4 and 24.2 % compared to the control, respectively. Seed priming plusspray of Se decreased the Stink buginjury, significantly. The maximum seed yield was recorded for seed priming with 2 mg/L Se plus foliar application of Se.The results suggest that seed priming with distilled water and espicial Se at low amounts along with spray of Se can decrease electrolyte leakage and Stink buginjury percentage under rainfed condition.