Abstract
ABSTRACT Iron (Fe) availability is low in calcareous soils of southern Iran. The chelate Fe-ethylenediamine di (o-hydroxy-phenylacetic acid) (Fe-EDDHA), has been used as an effective source of Fe in correcting Fe deficiency in such soils. In some cases, however, its application might cause nutritional disorder due to the antagonistic effect of Fe with other cationic micronutrients, in particular with manganese (Mn). A greenhouse experiment was conducted to evaluate the influence of soil and foliar applications of Fe and soil application of manganese (Mn) on dry matter yield (DMY) and the uptake of cationic micronutrients in wheat (Triticum aestivum L. var. Ghods) in a calcareous soil. Results showed that neither soil application of Fe-EDDHA nor foliar application of Fe sulfate had a significant effect on wheat DMY. In general, Fe application increased Fe uptake but decreased that of Mn, zinc (Zn), and copper (Cu). Application of Mn increased only Mn uptake and had no significant effect on the uptake of the other cationic micronutrients. Iron treatments considerably increased the ratio of Fe to Mn, Zn, Cu, and (Mn + Zn + Cu). Failure to observe an increase in wheat DMY following Fe application is attributed to the antagonistic effect of Fe with Mn, Zn, and Cu and hence, imbalance in Fe to (Mn + Zn + Cu) ratio. Due to the nutritional disorder and imbalance, it appears that neither soil application of Fe-EDDHA nor foliar application of Fe-sulfate is appropriate in correcting Fe deficiency in wheat grown on calcareous soils. Hence, growing Fe-efficient wheat cultivars should be considered as an appropriate practice for Fe chlorosis-prone calcareous soils of southern Iran.
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Claims 12
Claim · model-written summary
soil application of Fe-EDDHA did not significantly affect wheat dry matter yield.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- soil application of Fe-EDDHAe0
- Outcome
- wheat DMYe0
- Direction
- neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither soil application of Fe-EDDHA nor foliar application of Fe sulfate had a significant effect on wheat DMY”
t0“Wheat”
Claim · model-written summary
foliar application of Fe sulfate did not significantly affect wheat dry matter yield.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- foliar application of Fe sulfatee0
- Outcome
- wheat DMYe0
- Direction
- neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither soil application of Fe-EDDHA nor foliar application of Fe sulfate had a significant effect on wheat DMY”
t0“Wheat”
Claim · model-written summary
Fe application increased Fe uptake uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Fe applicatione0
- Outcome
- Fe uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe application increased Fe uptake but decreased that of Mn, zinc (Zn), and copper (Cu)”
t0“Wheat”
Claim · model-written summary
Fe application decreased Mn uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Fe applicatione0
- Outcome
- Mne0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe application increased Fe uptake but decreased that of Mn, zinc (Zn), and copper (Cu)”
t0“Wheat”
Claim · model-written summary
Fe application decreased zinc (Zn) uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Fe applicatione0
- Outcome
- zinc (Zn)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe application increased Fe uptake but decreased that of Mn, zinc (Zn), and copper (Cu)”
t0“Wheat”
Claim · model-written summary
Fe application decreased copper (Cu) uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Fe applicatione0
- Outcome
- copper (Cu)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe application increased Fe uptake but decreased that of Mn, zinc (Zn), and copper (Cu)”
t0“Wheat”
Claim · model-written summary
Mn application increased Mn uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Application of Mne0
- Outcome
- Mn uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Mn increased only Mn uptake and had no significant effect on the uptake of the other cationic micronutrients”
t0“Wheat”
Claim · model-written summary
Mn application did not significantly change other cationic micronutrient uptake.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Application of Mne0
- Outcome
- uptake of the other cationic micronutrientse0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Mn increased only Mn uptake and had no significant effect on the uptake of the other cationic micronutrients”
t0“Wheat”
Claim · model-written summary
Iron treatments increased Fe ratios to Mn, Zn, Cu, and their sum.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Iron treatmentse0
- Outcome
- ratio of Fe to Mn, Zn, Cu, and (Mn + Zn + Cu)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron treatments considerably increased the ratio of Fe to Mn, Zn, Cu, and (Mn + Zn + Cu)”
t0“Wheat”
Claim · model-written summary
The authors attribute absent DMY gain to Fe antagonism with other micronutrients.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Fe applicatione0
- Outcome
- wheat DMYe0
- Qualifier
- antagonistic effect of Fe with Mn, Zn, and Cue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Failure to observe an increase in wheat DMY following Fe application is attributed to the antagonistic effect of Fe with Mn, Zn, and Cu”
t0“Wheat”
Claim · model-written summary
The authors consider neither Fe treatment appropriate for correcting wheat Fe deficiency.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- soil application of Fe-EDDHA nor foliar application of Fe-sulfatee0
- Outcome
- correcting Fe deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither soil application of Fe-EDDHA nor foliar application of Fe-sulfate is appropriate in correcting Fe deficiency in wheat grown on calcareous soils”
t0“Wheat”
Claim · model-written summary
The authors recommend Fe-efficient cultivars for chlorosis-prone calcareous soils.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- growing Fe-efficient wheat cultivarse0
- Setting
- southern Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growing Fe-efficient wheat cultivars should be considered as an appropriate practice for Fe chlorosis-prone calcareous soils of southern Iran”
t0“Wheat”
The same questions in other papers
manganese atom · nutrient: content · Triticum aestivum (wheat)Results differ
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- no effect
- positive
- positive
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See all 35 papers →iron atom · yield · Triticum aestivum (wheat)Results differ
6 papers in the same direction as this paper · 92 in the opposite direction
- positive
- no effect
- positive
95 papers more in this group
See all 99 papers →sulfate · yield · Triticum aestivum (wheat)Positive and negative results
22 in the opposite direction
- positive
- positive
- positive
19 papers more in this group
See all 23 papers →application · yield · Triticum aestivum (wheat)Positive and negative results
81 papers in the same direction as this paper · 795 in the opposite direction
- positive
- positive
- positive
873 papers more in this group
See all 877 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.