Genotype-specific responses of common bean to water deficit: mitigation by foliar-applied Fe, Zn, and Mn.

M A Wanas, Atef N Salama, Mahmoud N M Abdelmotagaly, Ayman M S Elshamly, Saudi A Rekaby

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

M A WanasSoils and Water Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt. Wanas.mohamed1984@azhar.edu.eg.

Atef N SalamaDepartment of Horticulture, Faculty Agriculture, Al-Azhar University, Cairo, Egypt.

Mahmoud N M AbdelmotagalyDepartment of Horticulture, College of Agriculture, University of Al-Azhar , Branch Assiut, Assiut, 71524, Egypt.

Ayman M S ElshamlyWater Studies and Research Complex, National Water Research Center, Research Institute for Groundwater, Cairo, Egypt. ayman_saleh@nwrc.gov.eg.

Saudi A RekabyDepartment of Soils and Water, Faculty of Agriculture, Al-Azhar University , Assiut Branch, Assiut, 71524, Egypt. saudirekaby.4419@azhar.edu.eg.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Common bean productivity in arid and semi-arid regions is frequently constrained by water deficit and micronutrient limitations. This study aimed to (i) quantify the effects of deficit irrigation and foliar micronutrient application on growth, yield, and water productivity, and (ii) elucidate the physiological and biochemical mechanisms underlying genotype-specific drought tolerance. Field experiments were conducted over two growing seasons on sandy soil using three common bean varieties (Nebraska, Giza 3, and Giza 6). Treatments were arranged in a split-split-plot randomized complete block design, with varieties as main plots, irrigation regimes [full irrigation (F100%), moderate deficit (D80%), and severe deficit (D70%)] as subplots, and foliar-applied micronutrients (Fe, Zn, and Mn at three rates) as sub-subplots. Measurements at mid- and late-growth stages included chlorophyll content, antioxidant enzyme activity, leaf micronutrient concentrations, growth traits, grain quality, yield, and water productivity. Giza 6 exhibited superior early physiological responses, with significantly higher chlorophyll content and antioxidant enzyme activity under the highest micronutrient rate (T

Indexed as

IronManganesePhaseolusZincAgricultural IrrigationChlorophyllDrought ResistanceDroughtsGenotypeMicronutrientsPlant LeavesWaterChlorophyllIronManganeseMicronutrientsWaterZincCommon beanDeficit irrigationDrought toleranceWater productivity

Identifiers

PMID42260013

DOI10.1038/s41598-026-53639-5

PMCPMC13246796

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.