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تاثیر تنش خشکی بر برخی ویژگیهای مرفوفیزیولوژیک و عملکرد گلرنگ (.Carthamus tinctorious L) در پاسخ به کاربرد پتاسیم | ||
| به زراعی کشاورزی | ||
| مقاله 8، دوره 24، شماره 4، دی 1401، صفحه 1133-1145 اصل مقاله (935.16 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jci.2022.330328.2610 | ||
| نویسندگان | ||
| مهدی کیخا ژاله1؛ محمود رمرودی* 2؛ محمد گلوی3؛ احمد قنبری4؛ حمید رضا فنایی5 | ||
| 1گروه زراعت، دانشکده کشاورزی، دانشگاه زابل، زابل، ایران. رایانامه: mahdi.kaykhazaleh@yahoo.com | ||
| 2نویسنده مسئول، گروه زراعت، دانشکده کشاورزی، دانشگاه زابل، زابل، ایران. رایانامه: mramroudi42@uoz.ac.ir | ||
| 3گروه زراعت، دانشکده کشاورزی، دانشگاه زابل، زابل، ایران. رایانامه: mgalavii@uoz.ac.ir | ||
| 4گروه زراعت، دانشکده کشاورزی، دانشگاه زابل، زابل، ایران. رایانامه: ghanbari@uoz.ac.ir | ||
| 5مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سـازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. رایانامه: h.fanaie@areeo.ac.ir | ||
| چکیده | ||
| به‌منظور ارزیابی تأثیر تنش خشکی و کاربرد پتاسیم بر عملکرد و ویژگیهای مرفوفیزیولوژیک گلرنگ (گلدشت) تحت شرایط آبیاری با آّب شور (6 دسی‌زیمنس بر متر)، آزمایشی به‌صورت کرت‌های خردشده بر پایه طرح بلوک‌های کامل تصادفی در سه تکرار در ایستگاه تحقیقات کشاورزی و منابع طبیعی شهرستان زهک در سال زراعی 98-1397 اجرا شد. تنش خشکی به‌عنوان کرت اصلی در سه سطح 45 (شاهد)، 65 و 85 درصد تخلیه مجاز رطوبتی و مصرف پتاسیم به‌عنوان کرت فرعی در چهار سطح صفر، 75، 150 و 225 کیلوگرم در هکتار بودند. نتایج نشان داد که تنش خشکی سبب کاهش معنی‌دار ارتفاع بوته، تعداد طبق در بوته، تعداد دانه در طبق، عملکرد دانه و بیولوژیک و محتوای نسبی آب برگ شد، اما با کاربرد پتاسیم ویژگیهای فوق روند افزایشی معنی‌داری داشتند. عملکرد دانه در تیمار آبیاری پس از 45 درصد تخلیه رطوبتی (شاهد) نسبت به آبیاری پس از 85 درصد تخلیه رطوبتی 32/42 درصد افزایش داشت. تأثیر برهم‌کنش تنش خشکی و کود پتاسیم بر تعداد شاخه در بوته، وزن هزاردانه، شاخص کلروفیل برگ (SPAD)، محتوای کربوهیدرات‌های محلول و درصد روغن دانه معنی‌دار شد و بیش‌ترین میزان آن‌ها از تیمار آبیاری پس از 45 درصد تخلیه رطوبتی با کاربرد 225 کیلوگرم پتاسیم در هکتار حاصل شد. | ||
| کلیدواژه‌ها | ||
| تنش کم‌آبی؛ درصد روغن؛ شاخص کلروفیل برگ؛ عملکرد دانه؛ کربوهیدرات‌های محلول | ||
| عنوان مقاله [English] | ||
| Effect of drought stress on some morphophysiological traits and yield of safflower (Carthamus tinctorious L.) in response to use of potassium | ||
| نویسندگان [English] | ||
| Mahdi Kaykhazaleh1؛ Mahmood Ramroudi2؛ Mohammad Galavi3؛ َAhmad Ghanbari4؛ Hamid Reza Fanay5 | ||
| 1Department of Agronomy, Faculty of Agriculture, University of Zabol, Zabol, Iran. E-mail: mahdi.kaykhazaleh@yahoo.com | ||
| 2Corresponding Author, Department Agronomy, Faculty of Agriculture, University of Zabol, Zabol, Iran. E-mail: mramroudi42@uoz.ac.ir | ||
| 3Department Agronomy, Faculty of Agriculture, University of Zabol, Zabol, Iran. E-mail: mgalavii@uoz.ac.ir | ||
| 4Department Agronomy, Faculty of Agriculture, University of Zabol, Zabol, Iran. E-mail: ghanbari@uoz.ac.ir | ||
| 5Seed and Plant Improvement Research Department, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. E-mail: h.fanaie@areeo.ac.ir | ||
| چکیده [English] | ||
| An experiment has been conducted in the form of split plots in a randomized complete block design with three replications at the Agricultural and Natural Resources Research Institute in Zahak to evaluate the effect of drought stress and potassium application on yield and morphophysiological traits of safflower (Goldasht cultivar) under saline irrigation conditions (EC 6 dS.m-1) in 2018-2019. Drought stress irrigation regimes have been tested at three levels (irrigation after 45% (control), 65%, and 85% of admissible moisture depletion) as the main factor, and potassium fertilizer at four levels (0, 75, 150, and 225 kg.ha-1) as the sub factor. According to the findings, drought stress has reduced plant height, number of heads per plant, number of seeds per head, seed and biological yield, and relative water content. The use of potassium, on the other hand, has increased the above traits greatly. Irrigation after 45% moisture depletion increases seed yield by 42.32%, compared to irrigation after 85% moisture depletion. Interaction of drought stress and potassium has had a significant effect on number of branches per plant, 1000-seed weight, leaf chlorophyll index, soluble carbohydrate content, and seed oil percentage, with the highest amount observed after 45% water drainage and application of 225 kg K ha-1. | ||
| کلیدواژه‌ها [English] | ||
| Leaf chlorophyll index, Percentage oil, Seed yield, Soluble carbohydrate, Water stress | ||
| مراجع | ||
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