Agronomic zinc biofortification of wheat to improve accumulation, bioavailability, productivity and use efficiency
Abstract
Zinc
(Zn) deficiency causes low crop production and malnutrition in human. Agronomic
biofortification of food crops can resolve the issues of global food security
and human nutrition on sustainable basis. Field experiments were conducted to
improve Zn bioavailability, growth and yield of wheat in response to varying Zn
application rates for two consecutive years (2016-17 & 2017-18).
Significant increase in grain yield was recorded with the application of Zn.
Highest grain yield (5.41 t ha-1) was recorded with the application
of 5.00 kg Zn ha-1. Human available Zn fraction was also improved in
response to Zn application. Zn application resulted in lowering phytate/Zn
molar ration in wheat grains. Higher Zn accumulation (338.72 g ha-1)
was observed by applying 7.5 kg Zn ha-1. Zinc application was found
critical to meet internal (36.53 µg g-1) and external (4.48 kg Zn ha-1)
Zn requirements to achieve near maximum yield of wheat. The results reinforced
the concept of Zn fertilization to achieve better productivity and quality.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Muhammad Ahmed Akram
*
This is me
Pakistan
Nizamuddin Depar
This is me
Pakistan
Muhammad Irfan
This is me
Pakistan
Publication Date
January 1, 2020
Submission Date
July 18, 2019
Acceptance Date
November 11, 2019
Published in Issue
Year 2020 Volume: 9 Number: 1
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