Abstract
Drought stress is a significant environmental concern affecting crop growth, development, and yield. A laboratory experiment was conducted to examine the germination characteristics of four maize genotypes under varying levels of osmotic stress (0%, 2.5%, 5%, 7.5%, 10%) using polyethylene glycol (PEG) 6000 as an osmoticum. The experiment followed a factorial design within a Completely Randomized Design (CRD) framework with three replications. Varying concentrations of PEG influenced the germination and early growth of plants. An interesting finding was that as the concentration of PEG increased, there was a noticeable decrease in plant growth, indicating a negative correlation between the two. The findings indicated that subjecting maize plants to water stress treatments significantly affected various growth parameters (with a statistical significance level of P<0.05). Furthermore, with the increase in PEG concentration, there was a gradual decline in both respiration and transpiration rates, resulting in a decrease in protein concentration. There is a significant decrease in relative water content (RWC) in both shoot and root by 28.65% and 11.13%, respectively, compared with the control. When maize seedlings were subjected to water deficit by treating them with 2.5 to 10% PEG, there was a significant decrease (by 60.05%) in the level of chlorophyll 'b' while the decrease (by 33.25%) in chlorophyll 'a' content was comparatively less pronounced.
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Claims 8
Claim · model-written summary
Increasing PEG concentration reduced plant growth.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE”
e0“as the concentration of PEG increased, there was a noticeable decrease in plant growth”
Claim · model-written summary
Water stress treatments significantly affected maize growth parameters.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“subjecting maize plants to water stress treatments significantly affected various growth parameters (with a statistical significance level of P<0.05)”
Claim · model-written summary
Respiration and transpiration rates declined as PEG concentration rose.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE”
e0“with the increase in PEG concentration, there was a gradual decline in both respiration and transpiration rates”
Claim · model-written summary
Protein concentration decreased as PEG concentration increased.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE”
e0“with the increase in PEG concentration, there was a gradual decline in both respiration and transpiration rates, resulting in a decrease in protein concentration”
Claim · model-written summary
Shoot relative water content fell 28.65% versus control.
- Organ / stage
- shoote0
- Outcome
- relative water content (RWC)e0
- Direction
- decreasee0
- Value
- 28.65%e0
- Comparator
- controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE”
e0“There is a significant decrease in relative water content (RWC) in both shoot and root by 28.65% and 11.13%, respectively, compared with the control”
Claim · model-written summary
Root relative water content fell 11.13% versus control.
- Organ / stage
- roote0
- Outcome
- relative water content (RWC)e0
- Direction
- decreasee0
- Value
- 11.13%e0
- Comparator
- controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“MAIZE”
e0“There is a significant decrease in relative water content (RWC) in both shoot and root by 28.65% and 11.13%, respectively, compared with the control”
Claim · model-written summary
PEG treatment reduced chlorophyll b by 60.05%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When maize seedlings were subjected to water deficit by treating them with 2.5 to 10% PEG, there was a significant decrease (by 60.05%) in the level of chlorophyll 'b'”
Claim · model-written summary
PEG treatment reduced chlorophyll a content by 33.25%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When maize seedlings were subjected to water deficit by treating them with 2.5 to 10% PEG, there was a significant decrease (by 60.05%) in the level of chlorophyll 'b' while the decrease (by 33.25%) in chlorophyll 'a' content was comparatively less pronounced”
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