Abstract
Magnesium (Mg) is an essential macronutrient in plants and plays a critical role in numerous physiological processes. Therefore, Mg deficiency severely affects plant growth and crop production. This study aimed to investigate the effects of Mg deficiency on plant growth, biomass formation, Mg homeostasis, and photosynthesis of banana seedlings. After exhibiting deficiency symptoms, plants were sprayed with Mg to alleviate the deficiency. Mg deficiency severely reduced plant biomass and chlorophyll content. A significant reduction in maximum quantum yield (Fv/Fm), the effective quantum yield of PS II (ΦPSII), photochemical fluorescence quenching (qP), and non-photochemical fluorescence quenching (NPQ) was observed. In contrast, the light compensation point was almost doubled under Mg deficiency. This indicated damage to the photosynthetic apparatus and photoinhibition under Mg-deficiency treatment. The foliar application of Mg to Mg-deficient plants significantly increased the biomass and reversed the decrease in the biomass of leaves, pseudostem, and corms. More improvement was observed in the leaf area and biomass of the upper leaves. Foliar Mg also increased the Mg concentration in all tissues and enhanced chlorophyll content and chlorophyll fluorescence in leaves. In conclusion, foliar Mg application to Mg-deficient plants efficiently restored banana plant development and might be a practical approach to correcting Mg deficiency in the field.
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Claims 12
Claim · model-written summary
Magnesium deficiency reduced banana biomass.
Not reportedComparator
Verbatim
e0“Mg deficiency severely reduced plant biomass and chlorophyll content”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Magnesium deficiency reduced chlorophyll content.
Not reportedComparator
Verbatim
e0“Mg deficiency severely reduced plant biomass and chlorophyll content”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Magnesium deficiency significantly reduced Fv/Fm and ΦPSII.
- Taxon
- bananat0
- Treatment
- Mg deficiencye0
- Outcome
- maximum quantum yield (Fv/Fm), the effective quantum yield of PS II (ΦPSII)e0
- Direction
- reductione0
Not reportedComparator
Verbatim
e0“Mg deficiency severely reduced plant biomass and chlorophyll content. A significant reduction in maximum quantum yield (Fv/Fm), the effective quantum yield of PS II (ΦPSII), photochemical fluorescence quenching (qP), and non-photochemical fluorescence quenching (NPQ) was observed”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Magnesium deficiency significantly reduced qP and NPQ.
- Taxon
- bananat0
- Treatment
- Mg deficiencye0
- Outcome
- photochemical fluorescence quenching (qP), and non-photochemical fluorescence quenching (NPQ)e0
- Direction
- reductione0
Not reportedComparator
Verbatim
e0“Mg deficiency severely reduced plant biomass and chlorophyll content. A significant reduction in maximum quantum yield (Fv/Fm), the effective quantum yield of PS II (ΦPSII), photochemical fluorescence quenching (qP), and non-photochemical fluorescence quenching (NPQ) was observed”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Light compensation point nearly doubled under magnesium deficiency.
- Taxon
- bananat0
- Treatment
- Mg deficiencye0
- Outcome
- light compensation pointe0
- Direction
- doublede0
- Value
- almost doublede0
Not reportedComparator
Verbatim
e0“the light compensation point was almost doubled under Mg deficiency”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
The authors interpret magnesium deficiency as damaging the photosynthetic apparatus and causing photoinhibition.
Verbatim
e0“This indicated damage to the photosynthetic apparatus and photoinhibition under Mg-deficiency treatment”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Foliar magnesium significantly increased biomass in deficient banana plants.
Verbatim
e0“The foliar application of Mg to Mg-deficient plants significantly increased the biomass”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Foliar magnesium reversed reduced biomass in leaves, pseudostem, and corms.
- Taxon
- bananat0
- Treatment
- Foliar Mge0
- Outcome
- biomass of leaves, pseudostem, and cormse0
- Direction
- reversed the decreasee0
Not reportedComparator
Verbatim
e0“reversed the decrease in the biomass of leaves, pseudostem, and corms. More improvement was observed in the leaf area and biomass of the upper leaves. Foliar Mg also increased the Mg concentration in all tissues”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Foliar magnesium improved upper leaf area and biomass more than other leaves.
- Taxon
- bananat0
- Treatment
- Foliar Mge0
- Outcome
- leaf area and biomass of the upper leavese0
- Direction
- improvemente0
Not reportedComparator
Verbatim
e0“More improvement was observed in the leaf area and biomass of the upper leaves. Foliar Mg also increased the Mg concentration in all tissues”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Foliar magnesium increased magnesium concentration in all tissues.
Not reportedComparator
Verbatim
e0“Foliar Mg also increased the Mg concentration in all tissues”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
Foliar magnesium increased leaf chlorophyll content and fluorescence.
- Taxon
- bananat0
- Treatment
- Foliar Mge0
- Outcome
- chlorophyll content and chlorophyll fluorescence in leavese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Foliar Mg also increased the Mg concentration in all tissues and enhanced chlorophyll content and chlorophyll fluorescence in leaves”
t0“Magnesium-Deficient Banana”
Claim · model-written summary
The authors suggest foliar magnesium as a practical field correction for banana magnesium deficiency.
Verbatim
e0“foliar Mg application to Mg-deficient plants efficiently restored banana plant development and might be a practical approach to correcting Mg deficiency in the field”
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