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نورافکن, حسن, شاهمرادی, معصومه. اثر پیش تیمار با نانو کلات آهن و سالیسیلیک اسید بر جوانه زنی و رشد عدس تحت تنش شوری. بوم شناسی گیاهان زراعی, 1393; 10(2): 65-75.
اثر پیش تیمار با نانو کلات آهن و سالیسیلیک اسید بر جوانه زنی و رشد عدس تحت تنش شوری
1عضو باشگاه پژوهشگران جوان و نخبگان دانشگاه آزاد اسلامی واحد میانه میانه، ایران
2عضو باشگاه پژوهشگران جوان و نخبگان دانشگاه آزاد اسلامی واحد میانه میانه، ایران
چکیده
به منظور بررسی اثر پیشتیمار بذر با نانو کلات آهن و سالیسیلیک اسید بر خصوصیات جوانهزنی و رشد عدس تحت تنش شوری، آزمایشی به صورت فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار انجام شد. تیمارهای آزمایش شامل پیشتیمار با سالیسیلیک اسید و نانو کلات آهن هر کدام در سه سطح شامل 1000، 2000 و 3000 میلیگرم بر لیتر، پیشتیمار با آب مقطر و شاهد (بدون اعمال پیشتیمار) و چهار سطح شوری شامل شاهد، 1000، 2000 و 3000 میلیگرم بر لیتر بود. نتایج نشان داد که اثر پیشتیمار با نانو کلات آهن و سالیسیلیک اسید در شرایط شوری بر درصد و سرعت جوانهزنی، درصد و سرعت سبز شدن، میانگین مدت زمان جوانهزنی و سبز شدن، طول ساقهچه، وزن تر و وزن خشک ساقهچه در سطح احتمال 1% معنیدار بود. غلظت 3000 میلیگرم بر لیتر کلرید سدیم سبب کاهش معنیدار شاخصهای جوانهزنی و رشد گیاهچه نسبت به شاهد گردید. در کل، سالیسیلیک اسید نسبت به نانو کلات آهن اثر مثبت بیشتری بر شاخصهای جوانهزنی و رشد گیاهچه عدس در شرایط تنش و بدون تنش شوری داشت و با کاربرد سالیسیلیک اسید به تنهایی و تحت تنش شوری شاخصهای جوانهزنی و رشد گیاهچه نسبت به شاهد افزایش یافت. بنابراین پیشتیمار بذر با سالیسیلیک اسید 3000 میلیگرم بر لیتر موجب بهبود جوانهزنی و استقرار گیاهچه در شرایط شوری و بدون شوری میشود.
The effect of seed priming by salicylic acid and nano-iron chelate on germination and initial growth of lentil under salinity stress
نویسندگان [English]
Hassan Nourafcan1؛ Masoumeh Shahmoradi2
1Young Researchers and Elite Club
Islamic Azad University
Miyaneh Branch
Miyaneh, Iran
2Young Researchers and Elite Club
Islamic Azad University
Miyaneh Branch
Miyaneh, Iran
چکیده [English]
To study the effect of seed priming by salicylic acid and nano-iron chelate on germination and initial growth of lentil under salinity stress, a factorial experiment was conducted based on completely randomized design with three replications. Treatments was contained priming with salicylic acid and nano-iron chelate each with three levels (1000, 2000 and 3000 mg.L-1), hydropriming with distilled water and control (non-priming) and four salinity levels (control, 1000, 2000 and 3000 mg.L-1). The results showed that seed priming by salicylic acid and nano-iron chelate had significant effect on germination percentage and rate, emergence percentage and rate, mean of germination and emergence time mean, plumule length, fresh and dry weight under salinity stress. The sodium chloride salt with 3000 mg.L-1 rate caused significant decrement in seedling germination and initial growth characteristics, comparing to control. In the present study, salicylic acid showed positive effect on germination and growth characteristics of lentil seedling under salinity stress with and without nano-iron chelate, so that germination and initial growth characteristics of lentil seedling were increased by application of salicylic acid in sole and under salinity stress, comparing to control. Therefore, applying seed priming by salicylic acid with 3000 mg.L-1 to improve germination and establishment of seedling with or without salinity stress condition is going to be recommended.
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