Abstract
Different strategies including the exogenous use of micronutrient-chelated amino acids are being employed for better crop yield with limited fresh water for irrigation. The present study was conducted to assess the effects of foliar-applied Zn-lysine (Zn-Lys) on maize growth and yield under limited irrigation, in relation to physio-biochemical mechanisms such as the plant-water relations, photosynthetic efficiency, antioxidant defense mechanism, amino acid accumulation and nutrient acquisition. The experiment comprised two maize cultivars (MMRI and Pearl), two irrigation levels and three levels of Zn-Lys (0.25, 0.5 and 0.75%). Zn-Lys fertigation was found to be effective in reducing the negative impacts of limited water supply on grain yield, associated with improved photosynthetic efficiency, water relations, antioxidative defense mechanism and reduced lipid peroxidation in both maize cultivars. Zn-Lys-induced improvement in antioxidative mechanisms was associated with improved content of non-enzymatic antioxidants and activities of antioxidant enzymes. Foliar-fertigation with Zn-Lys also significantly improved the contents of various amino acids including Lys, as well as uptake of nutrients in both maize cultivars. In conclusion, the 0.5% level of Zn-Lys was found to be effective in ameliorating the negative impacts of water stress for better grain yield in both maize cultivars that can also be used as an important environment-friendly source of Zn to fulfill maize Zn deficiency.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Zn-Lys fertigation improved grain yield under limited water supply in both maize cultivars.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-Lys fertigation was found to be effective in reducing the negative impacts of limited water supply on grain yield, associated with improved photosynthetic efficiency, water relations, antioxidative defense mechanism and reduced lipid peroxidation in both maize cultivars.”
Claim · model-written summary
Zn-Lys fertigation improved photosynthetic efficiency under limited water supply in both maize cultivars.
- Treatment
- Zn-Lys fertigatione0
- Outcome
- photosynthetic efficiencye0
- Direction
- improvede0
- Qualifier
- limited water supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-Lys fertigation was found to be effective in reducing the negative impacts of limited water supply on grain yield, associated with improved photosynthetic efficiency, water relations, antioxidative defense mechanism and reduced lipid peroxidation in both maize cultivars.”
Claim · model-written summary
Zn-Lys fertigation improved water relations under limited water supply in both maize cultivars.
- Treatment
- Zn-Lys fertigatione0
- Outcome
- water relationse0
- Direction
- improvede0
- Qualifier
- limited water supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-Lys fertigation was found to be effective in reducing the negative impacts of limited water supply on grain yield, associated with improved photosynthetic efficiency, water relations, antioxidative defense mechanism and reduced lipid peroxidation in both maize cultivars.”
Claim · model-written summary
Zn-Lys fertigation improved antioxidative defense mechanism under limited water supply in both maize cultivars.
- Treatment
- Zn-Lys fertigatione0
- Outcome
- antioxidative defense mechanisme0
- Direction
- improvede0
- Qualifier
- limited water supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-Lys fertigation was found to be effective in reducing the negative impacts of limited water supply on grain yield, associated with improved photosynthetic efficiency, water relations, antioxidative defense mechanism and reduced lipid peroxidation in both maize cultivars.”
Claim · model-written summary
Zn-Lys fertigation improved lipid peroxidation under limited water supply in both maize cultivars.
- Treatment
- Zn-Lys fertigatione0
- Outcome
- lipid peroxidatione0
- Direction
- reducede0
- Qualifier
- limited water supplye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-Lys fertigation was found to be effective in reducing the negative impacts of limited water supply on grain yield, associated with improved photosynthetic efficiency, water relations, antioxidative defense mechanism and reduced lipid peroxidation in both maize cultivars.”
Claim · model-written summary
Improved antioxidative mechanisms under Zn-Lys were associated with improved non-enzymatic antioxidant content and antioxidant enzyme activity.
- Treatment
- Zn-Lyse0
- Outcome
- improved content of non-enzymatic antioxidants and activities of antioxidant enzymese0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-Lys-induced improvement in antioxidative mechanisms was associated with improved content of non-enzymatic antioxidants and activities of antioxidant enzymes.”
t0“Maize”
Claim · model-written summary
Foliar Zn-Lys significantly improved contents of various amino acids including Lys in both maize cultivars.
- Treatment
- Foliar-fertigation with Zn-Lyse0
- Outcome
- contents of various amino acids including Lyse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar-fertigation with Zn-Lys also significantly improved the contents of various amino acids including Lys, as well as uptake of nutrients in both maize cultivars.”
Claim · model-written summary
Foliar Zn-Lys significantly improved uptake of nutrients in both maize cultivars.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar-fertigation with Zn-Lys also significantly improved the contents of various amino acids including Lys, as well as uptake of nutrients in both maize cultivars.”
Claim · model-written summary
The authors identify 0.5% Zn-Lys as effective for better grain yield under water stress in both maize cultivars.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 0.5% level of Zn-Lys was found to be effective in ameliorating the negative impacts of water stress for better grain yield in both maize cultivars that can also be used as an important environment-friendly source of Zn to fulfill maize Zn deficiency.”
Claim · model-written summary
The authors propose Zn-Lys as a source of Zn to address maize Zn deficiency.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 0.5% level of Zn-Lys was found to be effective in ameliorating the negative impacts of water stress for better grain yield in both maize cultivars that can also be used as an important environment-friendly source of Zn to fulfill maize Zn deficiency.”
The same questions in other papers
zinc atom · physiology: oxidative · Zea mays (maize)Results differ
6 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →zinc atom · nutrient: content · Zea mays (maize)Results differ
198 papers in the same direction as this paper · 33 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- negative
231 papers more in this group
See all 235 papers →zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
437 papers more in this group
See all 441 papers →zinc atom · disease · Zea mays (maize)Positive and negative results
10 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
12 papers more in this group
See all 16 papers →zinc atom · physiology: photosynthesis · Zea mays (maize)Positive and negative results
12 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
12 papers more in this group
See all 16 papers →zinc atom · molecular: metabolites · Zea mays (maize)Positive and negative results
35 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- no effect
40 papers more in this group
See all 44 papers →fertilization · disease · Zea mays (maize)Results differ
55 papers in the same direction as this paper · 28 in the opposite direction
- negative
- negative
- negative
80 papers more in this group
See all 84 papers →fertilization · physiology: photosynthesis · Zea mays (maize)Results differ
91 papers in the same direction as this paper · 12 in the opposite direction
- no effect
- no effect
- no effect
100 papers more in this group
See all 104 papers →8 of 12 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.