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تعیین بهترین شرایط آزمون جوانهزنی استاندارد تودههای بذری زنیان (Carum capticum) | ||
| علوم و فناوری بذر ایران | ||
| مقاله 1، دوره 13، شماره 1 - شماره پیاپی 33، اسفند 1402، صفحه 1-14 اصل مقاله (654.51 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2023.361781.1480 | ||
| نویسندگان | ||
| علی شایان فر* 1؛ بیتا اسکویی1؛ عباس ده شیری2؛ حدیث افشار3؛ الهه قیصری3 | ||
| 1استادیارپژوهش، مؤسسه ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 2دانشیار پژوهش، معاونت شناسایی و ثبت ارقام گیاهی، مؤسسه ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 3کارشناس ارشد آزمایشگاه تجزیه کیفی بذر موسسه تحقیقات ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| چکیده | ||
| به منظور تعیین بهترین روش برای آزمون جوانهزنی استاندارد بذر زنیان (Carum capticum)، آزمایشی بهصورت فاکتوریل در قالب طرح کاملاً تصادفی در چهار تکرار طراحی و در موسسه تحقیقات ثبت و گواهی بذر و نهال کرج اجرا گردید. بذرها در دو تیمار نیترات پتاسیم (2 گرم در هزار میلیلیتر آب مقطر) و سرمادهی (7 روز در دمای 7 تا 10 درجه سانتی-گراد) و سه حالت بستر روی کاغذ، بین کاغذی و ماسه و در دماهای 10، 15، 20، 25، 20-30 و 35 درجه سلسیوس در ژرمیناتور به مدت 25 روز قرار گرفتند. زندهمانی پس از آزمون تترازولیوم 75% بود. بالاترین درصد جوانهزنی نهایی و گیاهچه عادی در دمای 20 و 15 درجه سلسیوس در سرمادهی و در دمای 20 درجه سلسیوس در نیترات پتاسیم و شاهد ثبت گردید. در دمای 35 درجه سلسیوس هیچ گونه جوانهزنی پس از اعمال تیمارهای شاهد و نیترات پتاسیم مشاهده نشد اما پس از سرمادهی بیش از 26% جوانهزنی ثبت گردید. پتانسیل جوانهزنی در بستر روی کاغذ و بین کاغذی نسبت به ماسه بالاتر بود. کمترین سرعت جوانهزنی در تیمارهای شاهد و نیترات پتاسیم، و بیشترین در سرمادهی ثبت گردید. شاخص وزنی بنیه در بسترهای روی کاغذ و بین کاغذی در سه دمای 10، 15 و 20 درجه سلسیوس بالاترین مقدار بود. در راستای ارزیابی بهینه جوانهزنی استاندارد زنیان استفاده از نیترات پتاسیم و سرمادهی در دو دمای 15 و 20 درجه سلسیوس در دو بستر روی کاغذ و بین کاغذی پیشنهاد میگردد، زیرا میتواند حداکثر پتانسیل جوانهزنی و شاخص وزنی بنیه را حاصل نماید. | ||
| کلیدواژهها | ||
| بنیه گیاهچه؛ جوانهزنی بذر؛ زنیان؛ شرایط محیطی | ||
| عنوان مقاله [English] | ||
| Optimal condition determination for Ajwain (Carum capticum) standard germination test | ||
| نویسندگان [English] | ||
| Ali Shayanfar1؛ Bita Oskouei1؛ Abbas Dehshiri2؛ Hadis Afshar3؛ Elahe Gheysari3 | ||
| 1Research Assistant Professor, Seed and Plant Certification and Registration Research Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| 2Research Associate Professor, Agricultural Research, Education and Extension Organization (AREEO), Seed and Plant Certification and Registration Institute (SPCRI), Karaj, Iran | ||
| 3Master of Seed Laboratory of Agricultural Research, Seed and Plant Certification and Registration Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| چکیده [English] | ||
| Randomized factorial design was implemented in four replications to determine optimal methods of Ajwain (Carum capticum) standard seeds germination. Ajwain seeds were placed top and between paper and sand exposed to two potassium nitrate (two grams per 1000 ml distilled water) and pre-chilling (seven days under 7-10ºC) pre-treatments which were under six temperatures (10, 15, 20, 25, 20-30, and 35ºC) in germinator for 25 days so as to germination indices were assessed. Ajwain seeds viability was estimated 75% after tetrazolium test. The highest final and normal seedling percentages were found under 15 and 20ºC in pre-chilling treatment and also 20ºC in potassium nitrate and control. No germination was observed under 35ºC in potassium nitrate and control, however, pre-chilling led to >26% germination. The higher germination potential was shown in top and between papers compared with sand. The lowest germination rate was recorded in control and potassium nitrate and the highest one in pre-chilling. The maximum of seedling weight vigor was suggested in top and between paper when seeds were put under 10, 15, and 20ºC. In order to evaluate optimal standard germination of Ajwain seeds, it was resulted that applying of two potassium nitrate and pre-chilling treatments placed top and between papers under 15 and 20ºC caused maximum of germination potential and seedling weight vigor. | ||
| کلیدواژهها [English] | ||
| Ajwain, Environmental condition, Seed germination, Seedling vigor | ||
| مراجع | ||
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