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زارع مهرجردی, محمد, صفری, نسیم, خرازی, سیده مهدیه, خادم, آزاده, شریفی, احمد. (1402). تأثیر کیفیت‌های مختلف نور LED بر شاخص‌های مورفوفیزویولوژیکی گیاه خیار (Cucumis sativus L.). سامانه مدیریت نشریات علمی, 37(4), 1029-1041. doi: 10.22067/jhs.2023.80257.1222
محمد زارع مهرجردی; نسیم صفری; سیده مهدیه خرازی; آزاده خادم; احمد شریفی. "تأثیر کیفیت‌های مختلف نور LED بر شاخص‌های مورفوفیزویولوژیکی گیاه خیار (Cucumis sativus L.)". سامانه مدیریت نشریات علمی, 37, 4, 1402, 1029-1041. doi: 10.22067/jhs.2023.80257.1222
زارع مهرجردی, محمد, صفری, نسیم, خرازی, سیده مهدیه, خادم, آزاده, شریفی, احمد. (1402). 'تأثیر کیفیت‌های مختلف نور LED بر شاخص‌های مورفوفیزویولوژیکی گیاه خیار (Cucumis sativus L.)', سامانه مدیریت نشریات علمی, 37(4), pp. 1029-1041. doi: 10.22067/jhs.2023.80257.1222
زارع مهرجردی, محمد, صفری, نسیم, خرازی, سیده مهدیه, خادم, آزاده, شریفی, احمد. تأثیر کیفیت‌های مختلف نور LED بر شاخص‌های مورفوفیزویولوژیکی گیاه خیار (Cucumis sativus L.). سامانه مدیریت نشریات علمی, 1402; 37(4): 1029-1041. doi: 10.22067/jhs.2023.80257.1222

تأثیر کیفیت‌های مختلف نور LED بر شاخص‌های مورفوفیزویولوژیکی گیاه خیار (Cucumis sativus L.)

علوم باغبانی
مقاله 10، دوره 37، شماره 4 - شماره پیاپی 60، اسفند 1402، صفحه 1029-1041    اصل مقاله (793.43 K)
نوع مقاله: مقالات پژوهشی
شناسه دیجیتال (DOI): 10.22067/jhs.2023.80257.1222
نویسندگان
محمد زارع مهرجردی1؛ نسیم صفری2؛ سیده مهدیه خرازی3؛ آزاده خادم3؛ احمد شریفی* 3
1دانشکده کشاورزی شیروان، دانشگاه بجنورد، بجنورد، ایران
2گروه علوم باغبانی و مهندسی فضای سبز، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران
3گروه بیوتکنولوژی گیاهان باغبانی، پژوهشکده بیوتکنولوژی صنعتی، سازمان جهاددانشگاهی خراسان رضوی، مشهد، ایران
چکیده
در طی رشد گیاه، کیفیت نور بر بسیاری از شاخص­های مورفولوژیکی و فیزیولوژیکی تأثیر می­گذارد. امروزه استفاده از نور تکمیلی به‌طور قابل توجهی عملکرد محصول و کیفیت آن را در شرایط کمبود نور طبیعی به‌خصوص در فصل­های پاییز و زمستان بهبود می­بخشد. دیودهای ساطع­کننده نور (Light-emitting diode) به‌عنوان منابع نور جایگزین در محیط‌های کشاورزی کنترل‌شده پیشنهاد شده‌اند. در این راستا، پژوهش حاضر به‌منظور بررسی چگونگی تأثیر کیفیت نور بر دانهال­های خیار (Cucumis sativus L.) رقم Officer در شرایط کنترل شده آزمایشگاهی انجام شد. آزمایش در 4 کیفیت متفاوت نور آبی، قرمز، سفید و ترکیبی (آبی+قرمز+سفید) با توانایی فتوسنتزی یکسان بود. نتایج تجزیه واریانس داده‌ها نشان داد که بین تیمارهای نوری از نظر صفات، ارتفاع بوته، سطح برگ، وزن خشک ریشه و وزن تر اندام هوایی تحت تأثیر کیفیت نور قرار گرفت و اختلاف بین آنها در روز­های مختلف پس از کشت معنی‌دار بود. ارتفاع بوته در تیمار نور قرمز و نور آبی در مقایسه با تیمار سفید و تیمار نور ترکیبی (قرمز+آبی+سفید) به‌ترتیب 3/58 و 3/133 درصد افزایش داشت. کمترین ارتفاع بوته در تیمار نور ترکیبی مشاهده شد. این درحالی است که بیشترین وزن تر اندام هوایی در نورهای سفید و آبی، بیشترین سطح برگ در نورهای سفید و قرمز و بیشترین وزن خشک ریشه نیز در نور سفید مشاهد شد. صفات تحت تأثیر قرار گرفته جزء دسته صفاتی هستند که تحت تأثیر هورمون جیبرلین قرار می‌گیرند. به‌طور کلی مشخص گردید که رشد گیاه خیار تحت تأثیر کیفیت­های مختلف نور قرار گرفته است و با توجه به هدف تولید و شرایط موجود می‌توان کیفیت نور مناسب برای کسب حداکثر سرعت رشد گیاه را انتخاب نمود.
کلیدواژه‌ها
دیودهای ساطع‌کننده نور؛ صفات رشدی؛ نور آبی؛ نور قرمز؛ نور سفید
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