تاثیر کاربرد همزمان پیش‌تیمار و محلول‌پاشی با عنصر روی، بر بهبود عملکرد برنج رقم هاشمی و غنی‌سازی زیستی دانه

نوع مقاله : مقاله پژوهشی

نویسندگان

• شهرام محمود سلطانی ¹
• مریم حسینی چالشتری ²
• شهرام نظری ³
• مریم شکوری کتیگری ⁴

¹ دانشیار موسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی

² دانشیار موسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران

³ استادیار موسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران

⁴ موسسه تحقیقات برنج کشور. سازمان تحقیقات، اموزش و ترویج کشاورزی

چکیده

کلیدواژه‌ها

• اسید آمینه
• برنج هاشمی
• سولفات روی
• کمبود روی
• گلایسین

موضوعات

• حاصلخیزی خاک و تغذیه گیاه

عنوان مقاله [English]

Co-application of seed priming and foliar spraying by Zinc, a solution to enhance rice yield and grain Bio-fortification

نویسندگان [English]

• Shahram MahmoudSoltani ¹
• Maryam Hosseini Chjelshtori ²
• Shahram Nazari ³
• maryam Shakouri Katigari ⁴

کلیدواژه‌ها [English]

• Amino Acid
• Hashemi Cultivar
• Glycine
• Zinc Deficiency
• Zinc Sulphate

EXTENDED ABSTRACT

Introduction:

Zinc (Zn), an essential micronutrient, is the only metal that forms a part of the six different classes of enzymes for crop growth and development. Seed priming and foliar application in rice by zinc relies on higher contact and lesser application as new strategies enhance rice growth and development (quantitatively and qualitatively) in both normal and stress conditions. Seed priming is a promising, rapid, efficient, and low-cost approach to increasing the rate of germination and more broadly crop yield and nutritional quality. Also, foliar application at vital physiological stages (booting, flowering and ripening) can enhance the biochemical processes to increase the quality and quantity of rice grain.

Objective(s):

The current experiment is designed to explore the effect of two aforementioned fertilizer application methods on rice morphological and physiological traits, and the zinc content of grain and straw of Hashemi cultivar during 2021-2022 rice growing seasons.

Material and Methods: 

An open-air pot three factors factorial experiment was conducted on a randomized complete block design with three replications at the Rice Research Institute of Iran. The applied experimental factors were: Nutripriming with zinc sulfate (5g.L^-1) for 6, 12, and 24 hours, and control; soil types at two levels (less and more than Zn critical level (2 mgkg^-1), and foliar application of 0.05% solution from amino acid chelate zinc source at maximum tillering, booting and ripening stages. The observed data were: rice grain, straw and biological yield, plant height, panicle length, total and fertile tiler number, 1000 grain weight, filled and unfilled grain number and zinc content of rice grain and straw.

Results:

The results clearly showed that the rice grain yield was increased through co-application of nutripriming with zinc sulfate (5g.L^-1) for 6 hours and foliar application of 0.05% solution from amino acid chelate zinc source at maximum tillering, booting, and ripening stages by about 1.78 and 1.39 times compared to control 1 (soil 1-low soil zinc) and control 2 (soil 2-high soil zinc), respectively. With a similar trend, co-application of nutripriming with zinc sulfate (5g.L^-1) for 6 hours and foliar application of 0.05% solution from amino acid chelate zinc source at maximum tillering, booting and ripening stages increased the straw yield averagely about 30% and the grain and straw zinc content by about 1.8 times and 99.25%, and 1.8 times and 46.45% compared to control 1 (soil 1-low soil zinc) and control 2 (soil 2-high soil zinc).

Conclusions:

It can be concluded that co-application of nutripriming with zinc sulfate (5g.L^-1) for 6 hours and foliar application of 0.05% solution from amino acid chelate zinc source at maximum tillering, booting, and ripening stages might be a new approach of lesser use of zinc fertilizer and higher positive effect to enhance the rice grain and nutritional quality at farmer field through rapid, cheaper and easy method.

Author Contributions

Shahram Mahmoud Soltani and Shahram Nazari conceived of the presented idea, developed the theory and performed the computations.and carried out the experiment.  Maryam Hossieni Chaleshtori verified analytical methods and performed the computations. Shahram Mahmoud Soltani investigated and supervised the findings of this work. Maryam Shakouri Katigari handeled the laboratory soil and plant tissues analysis. All authors discussed the results and contributed to the final manuscript, but Shahram Mahmoud Soltani worte the final version of manuscript. All authors have read and agreed to the published version of the manuscript. All authors contributed according their name place to the conceptualization of the article and writing of the original and subsequent drafts.

Data Availability Statement

Raw data were generated at Rice Research Institute of Iran (RRII). Derived data supporting the findings of this study are available from the corresponding author [Shahram Mahmoud Soltani] on request after the permission of the RRII.

Acknowledgements

The authors would like to thank the Rice Research Institute of Iran for support of the present study.

Ethical considerations

The study was approved by the Ethics Committee of the Rice Research Institute of Iran (Ethical code: 17-04-04-021-000537 ). The authors avoided data fabrication, falsification, plagiarism, and misconduct.

Conflict of interest

The author declares no conflict of interest.