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میری, موسی, پیردشتی, همت الله, فغانی, الهام, قاسمی عمرانی, ولی الله. (1396). تاثیر پاکلوبوترازول بر خصوصیات فیزیولوژیکی دو رقم کنجد (Sesamum indicum L.) تحت تنش خشکی. سامانه مدیریت نشریات علمی, 30(1), 83-95. doi: 10.22092/aj.2018.114836.1175
موسی میری; همت الله پیردشتی; الهام فغانی; ولی الله قاسمی عمرانی. "تاثیر پاکلوبوترازول بر خصوصیات فیزیولوژیکی دو رقم کنجد (Sesamum indicum L.) تحت تنش خشکی". سامانه مدیریت نشریات علمی, 30, 1, 1396, 83-95. doi: 10.22092/aj.2018.114836.1175
میری, موسی, پیردشتی, همت الله, فغانی, الهام, قاسمی عمرانی, ولی الله. (1396). 'تاثیر پاکلوبوترازول بر خصوصیات فیزیولوژیکی دو رقم کنجد (Sesamum indicum L.) تحت تنش خشکی', سامانه مدیریت نشریات علمی, 30(1), pp. 83-95. doi: 10.22092/aj.2018.114836.1175
میری, موسی, پیردشتی, همت الله, فغانی, الهام, قاسمی عمرانی, ولی الله. تاثیر پاکلوبوترازول بر خصوصیات فیزیولوژیکی دو رقم کنجد (Sesamum indicum L.) تحت تنش خشکی. سامانه مدیریت نشریات علمی, 1396; 30(1): 83-95. doi: 10.22092/aj.2018.114836.1175

تاثیر پاکلوبوترازول بر خصوصیات فیزیولوژیکی دو رقم کنجد (Sesamum indicum L.) تحت تنش خشکی

پژوهش های کاربردی زراعی
مقاله 6، دوره 30، شماره 1 - شماره پیاپی 114، فروردین 1396، صفحه 83-95    اصل مقاله (473.78 K)
نوع مقاله: مقاله پژوهشی
شناسه دیجیتال (DOI): 10.22092/aj.2018.114836.1175
نویسندگان
موسی میری1؛ همت الله پیردشتی2؛ الهام فغانی* 3؛ ولی الله قاسمی عمرانی1
1پژوهشکده ژنتیک و زیست فناوری کشاورزی طبرستان، دانشگاه کشاورزی و منابع طبیعی ساری، ایران
2هیات علمی دانشگاه علوم کشاورزی و منابع طبیعی ساری
3استادیار پژوهش موسسه تحقیقات پنبه کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، گرگان، ایران.
چکیده
به منظور ارزیابی اثرات پاکلوبوترازول بر دو رقم کنجد (Sesamum indicum) در شرایط تنش خشکی و بررسی واکنش ارقام بر خصوصیات فیزیولوژیکی، عملکرد و اجزای عملکرد، آزمایشی به صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی با سه تکرار در سال زراعی 94-93 در گلخانه واحد آموزشی کردکوی انجام شد. تیمارها شامل ارقام کنجد (یلووایت و اولتان)، سه سطح آبیاری(50،20 و 80 درصد ظرفیت زراعی خاک) و سه غلظت کاربرد پاکلوبوترازول(0، 5/7 و 15 میلی‌گرم در لیتر) بودند. داده‌ها با نرم افزار آماری SAS تجزیه و تحلیل شدند. نتایج نشان داد اثررقم، سطوح آبیاری و پاکلوبوترازول بر صفات وزن هزار دانه، عملکرد، پرولین، موم برگ، کاتالاز برگ و ریشه، نشاسته و کربوهیدرات‌های محلول معنی‌دار شدند. همچنبن غلظت انباشتگی موم کوتیکولی برگ در تنش خشکی شدید و بیشترین غلظت پاکلوبوترازول، 4 برابر آبیاری مطلوب و عدم مصرف پاکلوبوترازول بود. فعالیت آنزیم کاتالاز ریشه، کاتالاز برگ و پرولین برگ در 15 میلی گرم پاکلوبوترازول و در تنش آبی شدید به ترتیب 2،9/0 و 4/0 برابر عدم مصرف پاکلوبوترازول و آبیاری مطلوب بود. میزان کربوهیدرات برگ در خشکی شدیدو با بیشترین غلظت پاکلوبوترازول 6/0 برابر آن درشاهد بود. در آبیاری مطلوب با 15 میلی‌گرم پاکلوبوترازول، 3/13 گرم در هر بوته با وزن هزاردانه61/3 نسبت به شاهد بیشترین بودند. همچنین رقم اولتان نسبت به یلووایت به بیشترین غلظت مصرفی پاکلوبوترازول به دلیل تاثیر بر اسمولیت‌ها و آ نزیم کاتالاز، واکنش مثبت نشان دادند.
کلیدواژه‌ها
آنزیم‌های اکسیداتیو؛ اسمولیت‌ها؛ تحمل به کم آبی؛ موم کوتیکولی؛ کربوهیدرات
عنوان مقاله [English]
Effects of paclobutrazol on physiological characteristics of two sesame genotypes (Sesamum indicum L.) under water stress conditions
نویسندگان [English]
mousa miri1؛ hematollah pirdashti2؛ elham faghani3؛ Valiollah Ghasemi-Omran1
1Genetics and Agricultural Biotechnology Institute of Tabarestan, Agriculture and Natural Resources University of Sari, Iran
2Genetics and Agricultural Biotechnology Institute of Tabarestan, Agriculture and Natural Resources University of Sari, Iran,
3Assistant professor, Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization, Gorgan, Iran
چکیده [English]
Effects of paclubutrazol on physiological characteristic two genotypes (Sesamum indicum) under water stress
Miri.Mousa1, Hematollah Pirdashti1, Elham Faghani2*, Valiollah Ghasemi-Omran1
1) Genetics and Agricultural Biotechnology Institute of Tabarestan, Agriculture and Natural Resources University of Sari, Iran,
2*) Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization, Gorgan, Iran
Email: elhamfaghanibio@gmail.com


Introduction:
Sesame (Sesamum indicum L) is a flowering plant in the genus Sesamum. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds, which grow in pods (Monayem Miah et al., 2015). Drought is one of the most important abiotic stresses which affect almost every aspect of plant growth. The arid and semi-arid regions where sesame is grown are specified by high temperatures, high evaporation demand and occurrence of unpredictable drought (Oscar Rojas et al., 2014). This plant is relatively drought tolerant. Resistance to water stress in sesame is important in many countries with low rainfall.
Material and methods:
In order to evaluation effects of Paclubutrazul on two Sesamum indicum genotypes under drought stress and study physiology, yield and yield component responses of genotypes, these experiment was done using factorial arrangement based on Randomized Complete Block with three replications in 1393-94 in greenhouse of educational department of Kordkoy. Treatments included Sesamum indicum genotypes (Yellow- white and Oltan), three levels of watering (20, 50 and 80% FC) and three concentrations of paclubutrazul application (0, 7.5 and 15 mgL-1). Data were analyzed with SAS software.
Results and discussion:
Finally results showed that genotype, water treatment and paclubutrazul on thousand seed weight, yield, proline, epicuticular wax of leaf, catalase activity of leaf and root, starch and carbohydrate soluble was significant. Although proline, EWL, catalase enzyme activity in leaf and root were declined, but Starch and carbohydrate solution content of leaf was elevated in Yellow- white against 20% FC. Application of paclubutrazul on starch, proline and catalase enzyme activity in both genotypes were not significant, but catalase enzyme activity in root, carbohydrate solution and EWL in leaves, thousand seed weight and yield were different significantly. Oltan in waterless stress had maximum proline content, EWL and catalase enzyme activity than yellow white, albeit, yellow white had highest carbohydrate solution than Oltan. Also EWL in leaves of Oltan was increased in 15mgL-1 paclubutrazul. EWL accumulation leaves protect them from addition water evaporation (Gonzalez et al., 2010). Also concentration of EWL accumulation leaves against severs waterless stress and highest paclubutrazul content, was highest 4 times than well water and without paclubutrazul usage. Catalase enzyme activity in root and leaves and proline content of leaves in 15 mg paclubutrazuland severe waterless stress were 9, 0.2 and 0.4 times more than without paclubutrazul and well water treatment. Carbohydrate solution in leaves under severe water stress and highest paclubutrazul content was 0.6 times more than control. In well water with 15 mg paclubutrazul, average yield per plant 13.3 g with thousand seed weight, 3.61g than control was highest in comparison control. Also, Oltan genotype than Yellow white to highest concentration paclubutrazul usage in case of effect on Osmolites and Catalase activity enzyme showed positive reaction.

Key words: Oxidative enzyme, Osmolites, Waterless tolerant, Epicuticular wax, Carbohydrate


Monayem Miah., Afroz., S., Rashid. M. A and Shiblee S.A.M. 2015. Factors Affecting Adoption of Improved Sesame Technologies in Some Selected Areas in Bangladesh: An Empirical Study. The Agriculturists, 13(1): 140-151.
Oscar Rojas, N. R. C., Yanyun Li, E. S. T., Renato Cumani, N. R. L. (2014). Understanding the drought impact of El Niño on the global agricultural areas: An assessment using. FAO's. Agricultural Stress Index (ASI). ISSN 2071- 0992.
Gonzalez, A., and Ayerbe, L. 2010. Effect of terminal water stress on leaf epicuticular wax barley. Euphytica, 172(3): 341-349.
کلیدواژه‌ها [English]
Oxidative enzyme, Osmolytes, Water stress tolerance, epicuticular wax, Carbohydrate
مراجع

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