پديد آورنده :
رفيعي، هاجر
عنوان :
كاربرد تنظيم كننده هاي رشد بر روي گياهچه هاي سيب زميني به منظور شكستن خواب ميني تيوبرهاي توليدي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
كشاورزي- علوم باغباني
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
ده،49ص.: جدول
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
مصطفي مبلي
استاد مشاور :
علي اكبر رامين، محمد مهدي مجيدي
توصيفگر ها :
جيبراليك اسيد , اسپرمين , متيل جازمونات , ميني تيوبر
تاريخ نمايه سازي :
1/11/93
استاد داور :
نعمت اله اعتمادي شلمزاري، علي اسحق بيگي
چكيده انگليسي :
51 Effect of Application of Spermine Methyl Jasmonate and Gibberllic Acid on Potato Plantlets for Breaking of Minituber s Ddormancy Hajar Rafie Department of Horticulture Sciensces Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiMostafa Mobli mobli@cc iut ac irAbstractMinitubers are small potato tubers without any disease which is produced in isolated and very clean medias Despite of many benfits minitubers compared to normal tubers they have too long dormancy There are manyphysical and chemical methods for breaking dormancy of minitubers and tubers which each of them haveadvantages and disadvantages Plant growth regulators are better and have more ability in breaking dormancythan other methods scince they naturaly exist in plant Reaserches had shown that immersion of tubers andminitubers in gibberellic acid solution before planting would be effective in breaking dormancy Thistreatment produce long and thin sprouts which would not be proper for mechanical planting Few reasercheshave done on the effects of spermine and methyl jasmonate in breaking dormancy In this experiment effect ofspraying of different concentrations of gibberellic acid spermine and methyl jasmonate on plantlet producedthrought tissue culture two weeks before harvesting of minitubers have been investigated Experiment carriedout to a 2 7 factorial The first factor was 7 treatments of plant growth regulator include 50 and 100 mg l 1gibberellic acid 0 1 and 1 mmol l 1 methyl jasmonate 60 and 120 mg l 1 spermine and distillated water as acontrol The second factor were two cultivars of Agria and Arinda The measured characteristic were thenumber of days to sprouting length and diameter of dominant sprout wet and dry weight of dominant sprout weight reduction percentage of dominant sprout weight reduction percentage of minitubers number of activesprouts before and after of dominant sprout removal and carbohydrate content of dominant sprouts Resultsshowed that only gibberellic acid spraying on plantlet shorten minitubers dormancy while spraying withspermine and methyl jasmonate increased minitubers dormancy lenght Spraying of 60 mg l 1 sperminereduced length of dominant sprout in comparison to control non of the treatments showed significant effecton diameter of domianant sprout Maximum and minimum amount of fresh weight of dominant sprouts wereobserved in 1 mmol l 1methyl jasmonate and 60 mg l 1 spermine respectively All of treatments increased dryweight of dominant sprout in comparison to control Spraying 100 mg l 1 gibberellic acid caused maximumweight loss of minitubers caused sprouting of most sprouts before removing dominant sprout and the leastnumber of sprouts after removing dominant sprout The most amount of dominant sprout carbohydrate wereobtained by spraying 0 1 mmol l 1 methyl jasmonate and 100 mg l 1 gibberellic acid on plantlets and the leastamount was related to control Key Words gibberellic acid spermine methyl jasmonate minituber breaking dormancy
استاد راهنما :
مصطفي مبلي
استاد مشاور :
علي اكبر رامين، محمد مهدي مجيدي
استاد داور :
نعمت اله اعتمادي شلمزاري، علي اسحق بيگي
