NDLI: Interactive regulation of iron and zinc nutrition in wheat (Triticum aestivum L.)

Content Provider	Springer Nature Link
Author	Hanjagi, Prashantkumar S. Singh, Bhupinder
Copyright Year	2016
Abstract	Iron (Fe) and zinc (Zn) are important micronutrients required for various metabolic functions in plants and are considered a serious nutritional constraint in human beings. Global bio-fortification efforts are marred by low and imbalanced availability of these two minerals in the cultivable soil which negatively affects both the quality and quantity of cereal grain production. Present study was conducted to investigate the effect of variable Fe and Zn supply on Fe, Zn and N uptake in two bread wheat cultivars in nutrient solution culture. Zinc and Fe availability at 0.5 and 50 µM, respectively increased plant dry matter accumulation and leaf chlorophyll content, while an excess Zn supply (10 µM) at sufficient Fe (100 µM) significantly reduced shoot and root dry mass and total chlorophyll content of both the wheat cultivars when compared with the micronutrient deficient control. Iron and Zn availability positively impacted the plant N nutrition and that Fe and Zn have synergistic effect on the root release of phytosiderophore. Zinc and Fe were observed to facilitate root to shoot translocation of each other while competitive inhibition between Fe/Zn ratio was observed at the level of root uptake. It is, thus, suggested that crop management strategy should adopt a balanced fertilization approach giving equal importance to both macro- as well as micro-nutrient supplementation in order to achieve vigorous vegetative growth, grain yield and nutritional quality.
Starting Page	70
Ending Page	78
Page Count	9
File Format	PDF
ISSN	00195502
Journal	Indian Journal of Plant Physiology
Volume Number	22
Issue Number	1
e-ISSN	09740252
Language	English
Publisher	Springer India
Publisher Date	2016-12-20
Publisher Place	New Delhi
Access Restriction	Subscribed
Subject Keyword	Iron Plant Physiology Nitrogen Zinc Cell Biology Plant Genetics & Genomics Micronutrient Phytosiderophore Plant Biochemistry Translocation index Wheat Plant Sciences Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

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