The effect of foliar application of grass pea sprouts extract on yield, yield components, and grain quality of two rice cultivars

Document Type : Research Paper


Department of Agronomy and Crop Breeding, Faculty of Agriculture, Ilam University, Ilam, Iran


77Germinated grains are a rich source of minerals, water-soluble vitamins, enzymes, and soluble sugars that can be applied by foliar spraying on the foliage of crop plants where photosynthesis takes place. A field experiment was conducted during the rice-growing season of 2020 to evaluate the effect of grass pea sprout extract on the growth and yield of two common local varieties of rice (Anbarbou and Shamshiri). The experiment was the 2 × 2 factorial combination of grass pea extract spray (2%) and rice cultivar. (based on the randomized complete block design with three replicates. Irrespective of foliar spray with grass pea extract, a significant difference between the two cultivars was observed for seed phosphorus and zinc content, and phytic acid concentration. Plants sprayed with the grass pea sprout extract significantly displayed greater net photosynthesis and water use efficiency. Grain yield, panicle number, grain number, grain weight, fresh and dry matter accumulations, and panicle length of plants at harvest increased up to 7.4%, 23.91%, 7.39%, 4.44%, 18.49%, 16.85%, and 26.5%, respectively, due to foliar application with the grass pea extract. Grain P content sprayed with the grass pea extract increased up to 65.38%, irrespective of the type of cultivar. Also, foliar spraying improved grain Zn content from 10.54 µg g-1 to 29.75 µg g-1. Although, the grain phytic acid increased from 4.86 mg g-1 to 6.71 mg g-1 by foliar spraying of the grass pea sprout extract, however, the ratio of phytic acid to Zn content in the grain decreased from 46.11 to 22.55%. Foliar spraying increased grain Zn content in Anbarbou by 1.2-fold as compared to Shamshiri. On the other hand, foliar spraying increased grain phytic acid concentration in Shamshiri by 1.65-fold as compared to Anbarbou. It seems that spraying the rice plants with the grass pea sprout extract was beneficial in terms of agronomic and physiologic characteristics and nutrients such as Zn and P. Also, Anbarbou responded better to the sprout extract than the Shamshiri cultivar.


Article Title [فارسی]

تاثیر محلول پاشی با عصاره خلر بر عملکرد، اجزای عملکرد و کیفیت دانه دو نوع رقم برنج

Authors [فارسی]

  • محمود صادقی زاده
  • محمد جواد زارع
گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه ایلام، ایلام
Abstract [فارسی]

دانه جوانه زده منبع غنی از عناصر، ویتامین­های محلول، آنزیم ها و قندهای محلول هستند که می­توانند به صورت محلول پاشی برگی روی گیاهان زراعی مورد استفاده قرار گیرند. آزمایشی به منظور بررسی تاثیر عصاره استخراج شده از دانه جوانه زده خلر بر عملکرد و اجزای عملکرد دانه دو رقم برنج، شمشیری و عنبربو، تحت شرایط مزرعه ­ای در سال زراعی 1399 طرح ریزی شد. آزمایش در قالب فاکتوریل 2 × 2 با محلول پاشی عصاره (2%) و بدون محلول پاشی روی دو رقم مذکور در سه تکرار پیاده شد. صرف نظر از محلول پاشی برگی، میزان فسفر، روی و اسید فیتیک دانه در دو رقم متفاوت بود. محلول پاشی با عصاره استخراج شده از دانه خلر موجب افزایش میزان فتوسنتز خالص و کارایی مصرف آب در هر دو رقم برنج شد. عملکرد دانه، تعداد خوشه، تعداد دانه در خوشه، وزن هزار دانه، میزان وزن خشک و تر و نیز طول خوشه تحت محلول پاشی برگی با عصاره خلر به میزان‌ 7/4، 23/91، 7/39، 4/44، 18/49، 16/85 و 26/5 درصد افزایش یافت. محلول پاشی با عصاره حاصل از دانه خلر موجب افزایش 65/38% محتوای فسفر دانه، صرف نظر از نوع رقم شد. همچنین محلول پاشی با عصاره خلر موجب افزایش میزان روی دانه از 10/54 به 29/75 میکرو گرم در کیلوگرم شد. اگرچه اسید فیتیک دانه از 4/86 به 6/71 میلی گرم در گرم با محلول پاشی عصاره گیاهی افزایش یافت، ولی نسبت اسید فیتیک به روی از 11/46 به 55/22 درصد کاهش یافت. محتوای روی دانه در رقم عنبربو در نتیجه محلول پاشی به میزان 1/2 برابر بیش از رقم شمشیری افزایش یافت. از سوی دیگر محلول‌پاشی با عصاره دانه جوانه زده خلر، میزان اسید فیتیک دانه را در رقم شمشیری 1/65 برابر نسبت به عنبربو افزایش داد. به نظر می­ رسد که محلول‌پاشی گیاه برنج با عصاره دانه جوانه زده خلر از نظر بهبود صفات زراعی و فیزیولوژیکی و نیز مواد مغذی مانند روی و فسفر مفید بوده است. همچنین رقم عنبربو نسبت به شمشیری به عصاره دانه جوانه زده واکنش بهتری نشان داده است.

Keywords [فارسی]

  • اسید فیتیک
  • روی
  • عصاره خلر
  • محلول پاشی
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