بررﺳﻲ اﺛﺮ ﺗﻴﻤﺎرﻫﺎی ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺮ ﺟﻮاﻧﻪزﻧﻲ ﺑﺬر ﮔﺸﻨﻴﺰ ( ativum coriandrum) در ﺷﺮاﻳﻂ ﺗﻨﺶ ﺧﺸﻜﻲ
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اصل مقاله (949.93 K)
عنوان دوره: سیزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1استادیار، دانشکده کشاورزی، دانشگاه یاسوج
2دانشجوی کارشناسی دانشکده کشاورزی، دانشگاه یاسوج
3دانشجوی کارشناسی ارشد، دانشکده کشاورزی، دانشگاه یاسوج
چکیده
ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﻲ اﺛﺮ ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺮ ﺷﺎﺧﺺ ﺟﻮاﻧﻪزﻧﻲ و رﺷﺪ اوﻟﻴﻪ ﮔﻴﺎﻫﭽﻪ ﮔﺸﻨﻴﺰ در ﺷﺮاﻳﻂ ﺗﻨﺶ ﺧﺸﻜﻲ آزﻣﺎﻳﺸﻲ ﺑﻪ ﺻﻮرت ﻓﺎﻛﺘﻮرﻳﻞ ﺳﻪ ﻋﺎﻣﻠﻲ در ﻗﺎﻟﺐ ﻃﺮح ﻛﺎﻣﻼ ﺗﺼﺎدﻓﻲ ﺑﺎ 4 ﭼﻬﺎر ﺗﻜﺮار در ﺳﺎل 1392 اﻧﺠﺎم ﺷﺪ. ﻓﺎﻛﺘﻮرﻫﺎی آزﻣﺎﻳﺸﻲ ﺷﺎﻣﻞ ﺗﻨﺶ ﺧﺸﻜﻲ در ﺳﻪ سطح (صفر، 3- و 6 - بار)و ترکیب پرایمینگ در شش سطح [ سالیسیلیک اسید 25 و50 ppm جیبرلیک اسید 25 و 50 ppm آﺳﻜﻮرﺑﻴﻚ اﺳﻴﺪ 50 و 75 ppm [ و ﻃﻮل دوره ﺳﺮﻣﺎدﻫﻲ در ﺳﻪ ﺳﻄﺢ )24، 48 و 72 ﺳﺎﻋﺖ(. ﻧﺘﺎﻳﺞ ﻧﺸﺎن داد ﻛﻪ درﺻﺪ ﺟﻮاﻧﻪزﻧﻲ در ﺑﺬرﻫﺎی ﭘﺮاﻳﻢ ﺷﺪه ﺑﺎ آﺳﻜﻮرﺑﻴﻚ اﺳﻴﺪ و ﺳﺎﻟﻴﺴﻴﻠﻴﻚ اﺳﻴﺪ ﺑﻴﺸﺘﺮ از ﺑﺬرﻫﺎی ﭘﺮاﻳﻢ ﻧﺸﺪه ﺑﻮد. اﻳﻦ در ﺣﺎﻟﻲ اﺳﺖ ﻛﻪ ﺑﺬور ﭘﺮاﻳﻢ ﺷﺪه ﺑﺎ ﺟﻴﺒﺮﻟﻴﻚ اﺳﻴﺪ در ﻣﻘﺎﻳﺴﻪ ﺑﺎ ﺑﺬور ﭘﺮاﻳﻢ ﺷﺪه ﺑﺎ دو ﺗﺮﻛﻴﺐ دﻳﮕﺮ در ﻣﺪت ﻛﻮﺗﺎﻫﺘﺮی ﺟﻮاﻧﻪ زدﻧﺪ. ﻧﺘﺎﻳﺞ ﻫﻤﭽﻨﻴﻦ ﺑﻴﺎﻧﮕﺮ اﻳﻦ ﻣﻮﺿﻮع ﺑﻮد ﻛﻪ ﭘﻴﺶ ﺗﻴﻤﺎر ﺳﺮﻣﺎﻳﻲ ﻧﻴﺰ ﺗﻮاﻧﺴﺖ ﺗﺎ ﺣﺪودی ﺑﻪ اﻓﺰاﻳﺶ ﻛﺎراﻳﻲ ﺑﺬرﻫﺎی ﭘﺮاﻳﻢ ﺷﺪه ﻛﻤﻚ ﻧﻤﺎﻳﺪ. ﺑﻪ ﻃﻮری ﻛﻪ ﺑﺬور ﻛﻪ ﺑﻪ ﻣﺪت 48 ﺳﺎﻋﺖ در ﺷﺮاﻳﻂ دﻣﺎﻳﻲ 10 درﺟﻪ آﺑﻨﻮﺷﻲ ﺷﺪه ﺑﻮدﻧﺪ در ﻣﻘﺎﻳﺴﻪ ﺑﺎ ﺑﺬرﻫﺎی ﺗﻴﻤﺎر ﺷﺪه ﺑﻪ ﻣﺪت 24 ﺳﺎﻋﺖ واﻛﻨﺶ ﻣﻨﺎﺳﺒﺘﺮی ﻧﺴﺐ ﺑﻪ ﺗﻨﺶ ﺧﺸﻜﻲ ﻧﺸﺎن دادﻧﺪ.
واژﮔﺎن ﻛﻠﻴﺪی: ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺬر، ﺗﻨﺶ ﺧﺸﻜﻲ، ﺟﻮاﻧﻪزﻧﻲ، ﮔﺸﻨﻴﺰ
واژﮔﺎن ﻛﻠﻴﺪی: ﭘﺮاﻳﻤﻴﻨﮓ ﺑﺬر، ﺗﻨﺶ ﺧﺸﻜﻲ، ﺟﻮاﻧﻪزﻧﻲ، ﮔﺸﻨﻴﺰ
کلیدواژه ها
Title
The effect of priming treatments on seed germination characteristics of Coriander (Sativum coriandrum)
under drought condition
Authors
Abstract
Abstract
In order to study the effects of priming on germination and seedling characteristics of Coriander under
drought stress, a three-factor factorial experiment with four replications was done based on completely
randomized design in 2013. Treatments consisted of three levels of drought stress (zero, -3 and -6 bar) and
six levels of priming compound [salicylic acid, 25 and 50 ppm, gibberellic acid, 25 and 50 ppm, ascorbic
acid, 50 and 75 ppm] and duration of cold at three levels (24, 48, and 72 h). Generally, the results showed
that the seed primed with ascorbic acid and salicylic acid have had better germination than GA primed and
non-primed seeds. Meanwhile, primed seeds with gibberellic acid compared with other seeds germinated in a
shorter period of time. The results also indicate this fact that chilling pretreatment could partially help to
increase seed priming efficiency. So that the seeds have imbibed for 48 hours at a temperature of 10 °
showed better response to drought stress compared with other chilling periods.
In order to study the effects of priming on germination and seedling characteristics of Coriander under
drought stress, a three-factor factorial experiment with four replications was done based on completely
randomized design in 2013. Treatments consisted of three levels of drought stress (zero, -3 and -6 bar) and
six levels of priming compound [salicylic acid, 25 and 50 ppm, gibberellic acid, 25 and 50 ppm, ascorbic
acid, 50 and 75 ppm] and duration of cold at three levels (24, 48, and 72 h). Generally, the results showed
that the seed primed with ascorbic acid and salicylic acid have had better germination than GA primed and
non-primed seeds. Meanwhile, primed seeds with gibberellic acid compared with other seeds germinated in a
shorter period of time. The results also indicate this fact that chilling pretreatment could partially help to
increase seed priming efficiency. So that the seeds have imbibed for 48 hours at a temperature of 10 °
showed better response to drought stress compared with other chilling periods.
Keywords
Keywords: Coriander, drought stress, seed germination, seed priming