Abstract
The objective of the present study was to investigate the interactive effects of foliar fertilization and drought and salinity on the growth of maize. Maize plants were grown in soil under drought or salinity in a greenhouse for 23 days after sowing. At harvest, plant height, shoot biomass, and the lengths, fresh weights and dry weights of the blade in the expanded leaf 3 and expanding leaves 4 and 5 were determined. Mineral elements (Na, K, Ca, Mg, P and N) in individual leaves were analyzed. Although there was a reduction in evapotranspiration, maize growth, such as shoot fresh weight and dry weight, and leaf fresh weight and dry weight under drought and salinity, the application of foliar fertilization did not improve plant growth under short-term drought or salt stress. Drought reduced the uptake of K, Ca, Mg and P, which may be attributed to decreased transpiration. An increase or no change in the nutrient concentration in leaves under saline conditions suggests that an osmotic effect may be responsible for the plant reduction.
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Claims 8
Claim · model-written summary
Drought and salinity reduced maize evapotranspiration.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although there was a reduction in evapotranspiration, maize growth, such as shoot fresh weight and dry weight, and leaf fresh weight and dry weight under drought and salinity, the application of foliar fertilization did not improve plant growth under short-term drought or salt stress.”
Claim · model-written summary
Drought and salinity reduced maize shoot fresh and dry weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although there was a reduction in evapotranspiration, maize growth, such as shoot fresh weight and dry weight, and leaf fresh weight and dry weight under drought and salinity, the application of foliar fertilization did not improve plant growth under short-term drought or salt stress.”
Claim · model-written summary
Drought and salinity reduced maize leaf fresh and dry weight.
- Organ / stage
- leafe0
- Treatment
- drought and salinitye0
- Outcome
- leaf fresh weight and dry weighte0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although there was a reduction in evapotranspiration, maize growth, such as shoot fresh weight and dry weight, and leaf fresh weight and dry weight under drought and salinity, the application of foliar fertilization did not improve plant growth under short-term drought or salt stress.”
Claim · model-written summary
Foliar fertilization did not improve maize growth under short-term drought or salt stress.
- Treatment
- foliar fertilizatione0
- Outcome
- plant growthe0
- Direction
- did not improvee0
- Qualifier
- short-term drought or salt stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of foliar fertilization did not improve plant growth under short-term drought or salt stress.”
t0“maize”
Claim · model-written summary
Drought reduced maize uptake of K, Ca, Mg and P.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought reduced the uptake of K, Ca, Mg and P, which may be attributed to decreased transpiration.”
t0“maize”
Claim · model-written summary
Reduced nutrient uptake under drought may be due to decreased transpiration.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought reduced the uptake of K, Ca, Mg and P, which may be attributed to decreased transpiration.”
t0“maize”
Claim · model-written summary
Under salinity, leaf nutrient concentrations increased or remained unchanged.
- Outcome
- nutrient concentration in leavese0
- Direction
- increase or no changee0
- Qualifier
- saline conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase or no change in the nutrient concentration in leaves under saline conditions suggests that an osmotic effect may be responsible for the plant reduction.”
t0“maize”
Claim · model-written summary
An osmotic effect may explain plant growth reduction under salinity.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase or no change in the nutrient concentration in leaves under saline conditions suggests that an osmotic effect may be responsible for the plant reduction.”
t0“maize”
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