اﺛﺮ ﮐﺎﺑﺮد ﭘﻼﺳﻤﺎي ﺳﺮد ﺑﺮ ﮐﻠﺮوﻓﯿﻞ و ﺑﺮﺧﯽ ﺻﻔﺎت آﻓﺘﺎﺑﮕﺮدان ﺗﺤﺖ رﻗﺎﺑﺖ ﺑﺎ ﻋﻠﻒﻫﺎي ﻫﺮز

Effect of cold plasma application on chlorophyll and some sunflower traits in competition with weeds

ﺑﻪﻣﻨﻈﻮر ارزﯾﺎﺑﯽ ﺗﺄﺛﯿﺮ ﭘﯿﺶ ﺗﯿﻤﺎر ﺑﺬر ﺑﺎ ﭘﻼﺳﻤﺎي ﺳﺮد ﺑﺮ ﺑﺮﺧﯽ ﺻﻔﺎت آﻓﺘﺎﺑﮕﺮدان در ﺣﻀﻮر ﻋﻠﻒﻫﺎي ﻫﺮز، آزﻣﺎﯾﺸﯽ ﺑﻪﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮكﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار در ﺳﺎل زراﻋﯽ1394-95 در ﻣﺰرﻋﻪي ﺗﺤﻘﯿﻘﺎﺗﯽ داﻧﺸﮑﺪهي ﮐﺸﺎورزي داﻧﺸﮕﺎه ﺻﻨﻌﺘﯽ ﺷﺎﻫﺮود اﻧﺠﺎم ﺷﺪ. ﻓﺎﮐﺘﻮرﻫﺎي آزﻣﺎﯾﺶ ﺷﺎﻣﻞ: ﭘﻼﺳﻤﺎ در 6 ﺳﻄﺢ: ﺷﺎﻫﺪ )ﺑﺪون ﭘﯿﺶ ﺗﯿﻤﺎر(، ﻫﯿﺪروﭘﺮاﯾﻢ ﺑﻪ ﻣﺪت 10 ﺳﺎﻋﺖ، ﭘﯿﺶ ﺗﯿﻤﺎر ﺑﺬور ﺑﺎ ﺗﺎﺑﺶ ﭘﻼﺳﻤﺎ ﺑﻪ ﻣﺪت 15 ﺛﺎﻧﯿﻪ، ﭘﯿﺶ ﺗﯿﻤﺎر ﺑﺬور ﺑﺎ ﺗﺎﺑﺶ ﭘﻼﺳﻤﺎ ﺑﻪ ﻣﺪت 30 ﺛﺎﻧﯿﻪ، ﻫﯿﺪروﭘﺮاﯾﻢ ﺑﺬور ﺑﻪ ﻣﺪت 10 ﺳﺎﻋﺖ + ﺗﺎﺑﺶ ﭘﻼﺳﻤﺎ ﺑﻪ ﻣﺪت 15 ﺛﺎﻧﯿﻪ، ﻫﯿﺪروﭘﺮاﯾﻢ ﺑﺬور ﺑﻪ ﻣﺪت 10 ﺳﺎﻋﺖ + ﺗﺎﺑﺶ ﭘﻼﺳﻤﺎ ﺑﻪ ﻣﺪت 30 ﺛﺎﻧﯿﻪ. ﮐﻨﺘﺮل ﻋﻠﻒ ﻫﺎي ﻫﺮز در 3 ﺳﻄﺢ: ﺷﺎﻫﺪ )ﻋﺪم وﺟﯿﻦ(، وﺟﯿﻦ ﺗﻤﺎم ﻓﺼﻞ و ﮐﺎرﺑﺮد ﻋﻠﻔﮑﺶ ﺗﺮﯾﻔﻠﻮراﻟﯿﻦ)1200 ﮔﺮم ﻣﺎده ﻣﻮﺛﺮه در ﻫﮑﺘﺎر( ﺑﻮدﻧ.ﺪ ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ ﭘﯿﺶ ﺗﯿﻤﺎر ﺑﺬر ﺑﺎ ﭘﻼﺳﻤﺎي ﺳﺮد ﺑﻪ ﻫﻤﺮاه ﮐﻨﺘﺮل ﻋﻠﻒﻫﺎي ﻫﺮز ﻣﯽﺗﻮاﻧﺪ ﺗﺎ ﺣﺪودي در ﺑﻬﺒﻮد رﺷﺪ و ﮐﯿﻔﯿﺖ ﺑﺮﺧﯽ ﺻﻔﺎت آﻓﺘﺎﺑﮕﺮدان ﻣﺆﺛﺮ ﺑﺎﺷﺪ.

In order to evaluate the effect of cold plasma radiation, on yield and yield components of sunflower (Helianthus annuus L.) and weed control, a factorial experiment was conducted as randomized complete block design with three replications at the research field of Shahrood University of Technology in 2016. Experimental factors were including cold plasma at 6 levels: control (no treatment), hydropriming of seeds with distilled water for 10 hours, pretreatment of seeds with cold plasma radiation for 15 seconds, pretreatment of seeds with cold plasma for 30 seconds, hydro-priming of seeds for 10 hours + cold plasma for 15 seconds, hydro-priming of seeds for 10 hours + cold plasma for 30 second. weed control at 3 levels: control (no weeding), weeding all season and application of trifluralin (1200 g ai/ha). Results showed that, cold plasma seed pretreatment with weed control can be partially effective in improving growth and quality of some sunflower traits.