تاثیر آبیاری تکمیلی، محلول¬پاشی اسید سالیسیلیک و هیومیک اسید بر واکنش رنگیزه‌های گیاهی (کلروفیل a، کلروفیل b و کروفیل کل) و میزان جذب عناصر غذایی بالنگوی شهری (Lallemantia iberica) در شرایط آب و هوایی خرم آباد
محورهای موضوعی : اسید هیومیکالناز خشنود 1 , علیرضا شکوه فر 2 * , طیب ساکی نژاد 3 , مسعود رفیعی 4 , سید کیوان مرعشی 5
1 - گروه فیزیولوژی گیاهان زراعی، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران،
2 - گروه زراعت، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
3 - گروه زراعت، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
4 - خش تحقیقات علوم زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی لرستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، خرم آباد، ایران،
5 - گروه زراعت، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران
کلید واژه: بالنگوی شهری, سالیسیلیک اسید, گیاهان روغنی, محلول پاشی, هیومیک اسید,
چکیده مقاله :
هدف از این پژوهش بررسی تأثیر آبیاري تکمیلی و محلولپاشی اسید سالیسیلیک و هیومیک اسید بر خصوصیات بیوشیمیایی توده‌هاي بالنگوي شهري در شرایط آب و هوایی خرم آباد در ایستگاه تحقیقاتی ویسیان بود. بدین منظور آزمایشی به صورت اسپلیت پلات_ فاکتوریل به مدت دوسال در قالب طرح پایه بلوك کامل تصادفی در سه تکرار در سال‌های زراعی ۹۹-۱۳۹۷ در شهرستان خرم آباد انجام شد. فاکتور اصلی آبیاری تکمیلی در چهار سطح شامل شاهد، آبیاری در مرحله غنچه دهی، در مرحله گل دهی، در مرحله غنچه دهی و گل دهی و عامل فرعی محلولپاشی اسید سالیک در سه سطح شامل شاهد، محلولپاشی با غلظت 5/0 میلی مولار، با غلظت 1 میلی مولار و عامل فرعی محلولپاشی هیومیک اسید در دو سطح شامل شاهد و با غلظت 1 میلی مولار بود. صفات مورد ارزیابی در این آزمایش شامل میزان نیتروژن، فسفر، پتاسیم، مس و آهن اندام هوایی، کروفیل a، کلروفیل b و مجموع کلروفیل a و b بودند. سطوح مختلف آبیاری تکمیلی و محلولپاشی اسید هیومیک و سالیسیک اسید به صورت معنی داری بر صفات فوق اثرگذار بودند. بر اساس نتایج مقایسات میانگین، بیشترین مقدار نیتروژن در اندام هوایی، آهن در اندام هوایی، کلروفیلa، کلروفیلb، کلروفیل کل در سال اول، در تیمار آبیاری تکمیلی در مرحله غنچه‌دهی- محلول پاشی سالیسیلیک اسید با غلظت ۱ میلی‌مولار و محلول پاشی هیومیک اسید با غلظت ۱ میلی مولار حاصل شد.
This study aimed to investigate the effects of supplementary irrigation and foliar spraying with salicylic acid and humic acid on the biochemical properties of dragon's head (Lallemantia iberica) under Khorramabad climatic conditions at Visian Research Station. The experiment was conducted as a split-plot-factorial based on a randomized complete block design for two years 2017- 2018 and 2018-2019 in Khorramabad city. Experimental treatments consisted of supplementary irrigation at four levels (including control, budding stage, flowering stage, and budding stage + flowering stage) as the main factor; foliar spraying with salicylic acid at three levels (including control, 0.5 mM, and 1 mM) as the first subfactor, and foliar spraying with humic acid at two levels (including control and 1 mM) as the second subfactor. In this study, different characteristics such as shoot nitrogen content, shoot phosphorus content, shoot potassium content, shoot copper content, shoot iron content, chlorophyll a, chlorophyll b, and chlorophyll total were evaluated. According to the results, various levels of supplementary irrigation and foliar spraying with humic acid and salicylic acid significantly affected the above characteristics. Mean comparison results revealed that the highest nitrogen content in the shoot (3.74%), shoot iron content (182.33 mg g-1), chlorophyll a (5.18 mg g-1 fresh weight), chlorophyll b (5.18 mg g-1 fresh weight) chlorophyll total (5.18 mg g-1 fresh weight) were recorded in the first year under treatment with supplementary irrigation at the budding stage and foliar spraying with salicylic acid (1 mM) and humic acid (1 mM).
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