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نقش پیش‌تیمار اسید هیومیک بر خصوصیات جوانه‌زنی و رشد اولیه گیاهچه بذر چغندرقند (Beta vulgaris L.) | ||
| علوم و فناوری بذر ایران | ||
| مقاله 6، دوره 12، شماره 1 - شماره پیاپی 29، اردیبهشت 1402، صفحه 79-89 اصل مقاله (1.17 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2022.360071.1455 | ||
| نویسندگان | ||
| سعید صادق زاده حمایتی* 1؛ رضا شهریاری2؛ علی صارمی راد3 | ||
| 1دانشیار مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند- سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| 2گروه زراعت، واحد اردبیل، دانشگاه آزاد اسلامی، اردبیل، ایران. | ||
| 3مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند- سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| چکیده | ||
| جوانه‌زنی و استقرار مناسب گیاهان زراعی از مهم‌ترین و بنیادی‌ترین عواملی است که بر عملکرد اقتصادی محصول تأثیر می‌گذارد. افزایش کیفیت بذر توسط پیش‌تیمار از مواردی است که می‌تواند بر جوانه‌زنی و استقرار گیاهچه مؤثر باشد؛ بنابراین، این پژوهش با هدف بررسی تأثیر پیش‌تیمار بذر چغندرقند با اسید هیومیک به‌صورت آزمایش فاکتوریل در قالب طرح بلوک‌های کامل تصادفی در سال 1396 اجرا شد. عامل اول پیش‌تیمار بذرها با مقادیر مختلف اسید هیومیک شامل چهار سطح 0 (شاهد)، 33/8، 50/12 و 00/25 میلیگرم به ازای هر 100 گرم بذر و عامل دوم شامل ارقام چغندرقند اکباتان و پایا بود. طبق نتایج تجزیه واریانس، آثار ساده اسید هیومیک و رقم بر تمام صفات به‌جز وزن خشک ریشه‌چه تأثیر معنی‌داری داشتند. اثر متقابل اسید هیومیک- رقم تنها برای سه صفت متوسط زمان جوانه‌زنی، وزن خشک ریشه‌چه و وزن خشک ساقه‌چه معنی‌دار بود. بر اساس نتایج مقایسه میانگین، بیشترین قوهنامیه (87/87 درصد)، سرعت جوانه‌زنی بذر (27/6 جوانه/روز)، شاخص طولی بنیه گیاهچه (52/3) و شاخص وزنی بنیه گیاهچه (96/1269) به پیش‌تیمار بذر با استفاده از 50/12 میلیگرم اسید هیومیک به ازای 100 گرم بذر اختصاص داشت. پیش‌تیمار بذر بدون اختلاف معنی‌دار در مقدار ماده پوششی موجب افزایش یکنواختی جوانه‌زنی بذر شد. رقم اکباتان در مقایسه با رقم پایا بر اساس صفات اندازه‌گیری‌شده برتری داشت. در مجموع استفاده از اسید هیومیک منجر به بهبود صفات جوانه‌زنی و رشد اولیه گیاهچه شد. | ||
| کلیدواژه‌ها | ||
| استقرار؛ بذر؛ پیش‌تیمار؛ چغندرقند؛ رقم | ||
| عنوان مقاله [English] | ||
| Role of humic acid pretreatment on sugar beet (Beta vulgaris L.) seed germination characteristics and early seedling growth | ||
| نویسندگان [English] | ||
| Saeed Sadeghzadeh Hemayati1؛ Reza Shariari2؛ Ali Saremirad3 | ||
| 1Associate Professor of Sugar Beet Seed Institute (SBSI) - Agricultural Research Education and Extension, Karaj, Iran | ||
| 2Department of Agronomy, Ardabil Branch, Islamic Azad University, Ardabil, Iran. | ||
| 3Sugar Beet Seed Institute (SBSI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran | ||
| چکیده [English] | ||
| Suitable germination and crops establishment are one of the most significant and fundamental issues that overshadow the economic performance of the product. Improving the quality of seeds by relying on their pre-treatment is one of the issues that can be considered. Accordingly, the present study was performed to investigate the effect of pretreatment of sugar beet seeds using humic in factorial experiment in 2017. The first factor was humic acid including four levels of zero, 8.33, 12.50, and 25.00 mg per 100 g of seed, and the second factor, cultivar included two levels of Ekbatan and Paya. According to the results of the analysis of variance, the main effects of humic acid and cultivar had a significant effect on all evaluated characteristics except root dry weight at one and five percent probability levels. Humic acid-cultivar interaction was significant only for the three characteristics of mean germination time, root dry weight, and shoot dry weight. Based on the mean comparison results, the seed vigor (87.87%), germination rate (6.27 bud/day), seedling vigor length index (3.52) and seedling vigor weight index (1269.96) were assigned to seed pretreatment using 12.50 mg of humic acid per 100 grams of seeds. Seed pretreatment without significant difference in the amount of coating material increased the uniformity of seed germination. Among the two studied cultivars, the Ekbatan cultivar was superior to the Paya cultivar in terms of all studied characteristics. In general, the use of humic acid improved the germination characteristics and early growth of seedlings. | ||
| کلیدواژه‌ها [English] | ||
| Cultivar, Establishment, Pretreatment, Sugar beet | ||
| مراجع | ||
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