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ارزیابی تاثیر تیمارهای مختلف به منظور افزایش درصد جوانه‌زنی بذر سه گیاه مریم گلی (Salvia grandiflora)، مینای چمنی (Bellis perennis) و گل مروارید (Alyssum maritimum ) | ||
| علوم و فناوری بذر ایران | ||
| مقاله 2، دوره 14، شماره 3 - شماره پیاپی 39، مهر 1404، صفحه 15-28 اصل مقاله (922.72 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2024.365727.1527 | ||
| نویسنده | ||
| سید عباس میرجلیلی* | ||
| دانشیار، مرکز آموزش عالی امام خمینی (ره)، سازمان تحقیقات آموزش و ترویج کشاورزی تهران ایران. | ||
| چکیده | ||
| اغلب گیاهان زینتی یکساله از طریق بذر تکثیر می‌شوند. بذر بعضی از این گیاهان به جهت سازگاری اکولوژیکی با شرایط محیطی دچار سختی در جوانه‌زنی هستند. به منظور بررسی تاثیر تیمارهای مختلف بر جوانه‌زنی بذرهای سه گیاه زینتی مریم گلی (Salvia grandiflora)، مینای چمنی (Bellis perennis) و گل مروارید(Alyssum maritimum) سه آزمایش مجزا در قالب طرح کاملاً تصادفی در4 تیمار و4 تکرار انجام شد. این تیمار‌ها شامل خیساندن در جیبرلیک اسید با غلظتهای 100، 500 و 1000 پی‌پی‌ام و سولفوریک اسید 50% در زمان‌های 5، 10 و 20 دقیقه و تیمار سرمادهی طی 3 هفته و در دماهای صفر تا 2، 4-3 و 6-5 درجه سلسیوس و تیمار شاهد بودند. مقایسه میانگین‌‌ها با روش دانکن و توسط نرم افزار SPSS انجام گرفت. نتایج نشان داد که تیمار جیبرلیک اسید با غلظت هزار پی‌پی‌ام بیشترین تاثیر در درصد و سرعت جوانه‌زنی گل مروارید داشت. تیمار سرمادهی تاثیر معنی‌داری روی جوانه‌زنی نداشت و تیمار سولفوریک اسید باعث کاهش معنی‌دار جوانه‌زنی گل مروارید شد. غلظتهای مختلف جیبرلیک اسید و سرمادهی تاثیر معنی‌داری روی جوانه‌زنی گل مینا چمنی نداشت و سولفوریک اسید کاهش معنی‌دار جوانه‌زنی را باعث شد. جیبرلیک اسید در غلظت 1000 پی‌پی‌ام افزایش جوانه‌زنی مریم گلی را سبب شد. بیشترین مقدار جوانه‌زنی در مریم گلی در تیمار جیبرلیک اسید به میزان 1000 پی‌پی‌ام(65/76 درصد) و درجه حرارت 2-0، و سولفوریک اسید در زمان 20 دقیقه مشاهده شد. | ||
| کلیدواژه‌ها | ||
| جیبرلیک اسید؛ خراش دهی؛ خواب بذر؛ سرمادهی؛ گیاه زینتی | ||
| عنوان مقاله [English] | ||
| Assessment the effect of different treatments in order to increase the seed germination percentage of three plants: sage (Salvia grandiflora), Lawn Daisy (Bellis perennis) and sweet alyssum (Alyssum maritimum) | ||
| نویسندگان [English] | ||
| Seyed Abbas Mirjalili | ||
| Associate professor, Imam Khomenini Higher Education Center, Agricultural Research, Education And Extension Organization, Tehran, Iran. | ||
| چکیده [English] | ||
| Annual ornamental plants, mostly, propagated by seeds. Seeds of some these plants have difficulties in germination due to ecological adaptations to environmental conditions. In order to investigation about the effect of different treatments on the germination of three ornamental plants, Salvia grandiflora, Bellis perennis and Alyssum maritimum, three separate experiments were accomplished based on Completely Randomized Design by 4 treatments and 4 replications. Treatments include GA3 by three levels (100, 500, 1000 PPM), sulfuric acid 50% in three time (5, 10, 20 minutes), stratification during three weeks in three temperatures (0-2, 3-4, 5-6 ˚C) and control. Means comparison was done via Duncan Test by SPSS software. The results showed that gibberellic acid with a concentration of 1000 ppm had the greatest effect on the percentage and speed of Alyssum maritimum seed germination. Cold treatment did not have a significant effect on germination and sulfuric acid treatment caused a significant decrease in Alyssum maritimum seed germination. Different concentrations of gibberellic acid and chilling treatments did not have a significant effect on the germination of Bellis perennis seed, and sulfuric acid caused a significant decrease in germination. Gibberellic acid at the concentration of 1000 ppm increased the germination of Salvia grandiflora. The highest amount of germination in sage was observed in the treatment of gibberellic acid at the level of 1000 ppm (76.65%) and temperature 0-2, and sulfuric acid in 20 minutes. | ||
| کلیدواژه‌ها [English] | ||
| Gibberellic acid, Scarification, Seed Dormancy, Chilling, Ornamental Plant | ||
| مراجع | ||
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