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بومشناسی و تأثیر تیمارهای مختلف بر جوانهزنی بذر گیاه دارویی درختان مادر کنارZiziphus spina-christi (L.) Desf. در استانهای فارس و بوشهر | ||
| علوم و فناوری بذر ایران | ||
| مقاله 1، دوره 14، شماره 4 - شماره پیاپی 40، دی 1404، صفحه 1-22 اصل مقاله (1.35 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2025.368968.1555 | ||
| نویسندگان | ||
| زینب تهمتن1؛ ساسان محسن زاده2؛ آتنا اسلامی فاروجی* 3 | ||
| 1دانشآموخته کارشناسی ارشد، گروه زیست شناسی، دانشکده علوم، دانشگاه شیراز، شیراز، ایران. | ||
| 2استاد، گروه زیست شناسی، دانشکده علوم، دانشگاه شیراز، شیراز، ایران. | ||
| 3استادیار، گروه زیست شناسی، دانشکده علوم، دانشگاه شیراز، شیراز، ایران. | ||
| چکیده | ||
| کمبود آب در زیستبوم ایران و محدودبودن گونههای بومی مقاوم، اهمیّت گیاهان سازگار به خشکی را نمایان میسازد. جوانهزنی بذر یکی از مهمترین مراحل در چرخه زندگی گیاهان است و وابسته به شرایط بومشناختی و فیزیولوژیک گیاه میباشد. هدف مطالعه تأثیر عوامل بومشناختی، محیطی و فیزیولوژیکی درختان مادر بر جوانهزنی بذر کنار در استانهای فارس و بوشهر است. آزمایشها در محیط کنترلشده شامل شش تیمار مختلف انجام شد. تحلیل خوشه و مختصات اصلی با ضریب تشابه اقلیدوسی و نرمافزار PAST برای بررسی رابطه مناطق و صفات تعیینکننده انجام شد. بیشترین جوانهزنی در تیمار فاقد برونبر و خیساندن در آب مقطر (48 ساعت) بود. از سوی دیگر مقایسه رنگیزهها، در برگ درختان مادر شیراز و کنگان بالاترین میزان را نشان داد. بالاترین پرولین در برگهای فیروزآباد بود. بیشینه هدایت الکتریکی در جم و بیشینه فسفر و پتاسیم خاک در شیراز بود. درصد رس و سیلت در فیروزآباد بیشتر بود، امّا حداکثر درصد شن در کنگان گزارش گردید. تحلیل خوشه، مناطق را در دو خوشه مجزا قرار داد که با نتایج تحلیل مختصات اصلی تطابق دارد. در تحلیل تطبیقی قوسگیریشده، مهمترین عامل قرارگیری شیراز پتاسیم بود، درحالیکه کنگان و دهرم به علّت درصد سیلت، کاروتنوئید و مساحت برگ در کنار یکدیگر قرار گرفتند. نتایج نشان میدهد که شرایط بومشناختی و فیزیولوژیکی درختان مادر، تأثیر مستقیمی بر جوانهزنی بذور دارد و رشد و سازگاری گیاه را تعیین میکند که توجه به این امر میتواند در توسعه کاشت این درخت در استانهای فارس و بوشهر بسیار مؤثر باشد. | ||
| کلیدواژهها | ||
| واژگان کلیدی: بومشناسی؛ پرولین؛ جوانهزنی؛ رنگیزه؛ کنار | ||
| عنوان مقاله [English] | ||
| Ecology and the effects of different treatments on seed germination of the medicinal plant Ziziphus spina-christi (L.) Desf. maternal trees in Fars and Bushehr Provinces | ||
| نویسندگان [English] | ||
| Zeinab Tahamtan1؛ Sasan Mohsenzadeh2؛ Atena Eslami-Farouji3 | ||
| 1Master’s graduate, Department of Biology, College of Science, Shiraz University, Shiraz, Iran. | ||
| 2Professor, Department of Biology, College of Science, Shiraz University, Shiraz, Iran. | ||
| 3Assistant Professor, Department of Biology, College of Science, Shiraz University, Shiraz, Iran. | ||
| چکیده [English] | ||
| Water scarcity in Iran’s ecosystem and the limited availability of endemic drought-resistant species highlight the significance of plants adapted to arid environments. Seed germination is one of the important stages in the plant’s life cycle, depends on ecological and physiological factors. The study aims to investigate the effect of ecological, environmental, and physiological factors of the maternal trees on the germination of Ziziphus spina-christi seeds from Fars and Bushehr provinces. Experiments were conducted under controlled conditions, including six different treatments. Cluster and Principal Coordinate Analysis (PCoA) were performed using Euclidean similarity coefficient in PAST software to examine the relationships between regions and key traits. The highest germination was in the treatment without pericarp and soaking in distilled water (48 hours). Alternatively, pigment comparison demonstrated the highest levels in the maternal leaves of Shiraz and Kangan. Maximum proline content was in Firouzabad leaves. The highest electrical conductivity was in Jam, while the maximum soil phosphorus and potassium were reported in Shiraz. The percentage of clay and silt was higher in Firouzabad, whereas the maximum percentage of sand was reported in Kangan. Cluster analysis categorized the regions into two distinct groups, aligning with PCoA results. In Detrended Correspondence Analysis, the most important factor for Shiraz was potassium, whereas silt percentage, carotenoids, and leaf area clustered Kangan and Dahrom. The results indicate that the ecological and physiological conditions of maternal trees directly affect seed germination, determining plant growth and adaptation, which can influence the cultivation of this tree in Fars and Bushehr provinces. | ||
| کلیدواژهها [English] | ||
| Keywords: Ecology, germination, pigment, proline, Ziziphus spina-christi | ||
| مراجع | ||
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