Remobilization and utilization of phosphorus in wheat cultivars under induced phosphorus deficiency

A solution culture study was conducted to compare the phosphorus (P) remobilization efficiency of four wheat cultivars under induced P deficiency. Wheat cultivars, i.e. Sarsabz, NIA-Sunder, NIA-Amber and NIA-Saarang were initially grown on adequate P nutrition for 30 days and then exposed to P-free...

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Bibliographic Details
Published in:Journal of plant nutrition 2018-07, Vol.41 (12), p.1522-1533
Main Authors: Abbas, Muhammad, Shah, Javaid Ahmed, Irfan, Muhammad, Memon, Muhammad Yousuf
Format: Article
Language:English
Subjects:
Cultivars
Efficiency
Leaves
Nutrition
Phosphorus
Triticum
Utilization
Wheat
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Summary:A solution culture study was conducted to compare the phosphorus (P) remobilization efficiency of four wheat cultivars under induced P deficiency. Wheat cultivars, i.e. Sarsabz, NIA-Sunder, NIA-Amber and NIA-Saarang were initially grown on adequate P nutrition for 30 days and then exposed to P-free nutrient solution for next 15 days to study P remobilization. Completely randomized design (CRD) with ten replicates per cultivar was employed. Cultivars varied for biomass production, P concentration, P uptake, and P utilization efficiency at both harvests. Overall, more than 75% of absorbed P was mobilized from older leaves to younger leaves as well as roots of all cultivars during P-omission period. However, cultivars could not produce significant variations (P < 0.05) in P remobilization, which implied that P remobilization was only a stress response to P deficiency in wheat cultivars and it could not be related to P utilization efficiency of these cultivars.
ISSN:0190-4167
1532-4087
DOI:10.1080/01904167.2018.1458871