Abstract
Using large moving water proof installations to regulate different soil water contents strictly,a systematic study was conducted to investigate the differences in root activity,leaves relative water content,water-holding capacity,plasma-membrane permeability of leaf and root in plants of summer maize during the whole growing period under light and severe soil drought stress.The results showed that:the leaf relative water content and roots vitality decreased,leave water-holding capacity declined apparently,the plasma membrane permeability of leave and roots enhanced under soil drought in maize.Under soil drought,the root and leaf plasma-membrane permeability were negatively related to the leaf relative water content,furthermore the root plasma-membrane permeability enhanced more sharply than the leaf.But the root and leaf plasma-membrane permeability were positively related to the leaves holding-water capacity,and the root plasma-membrane permeability were also positively related to the leaf plasma-membrane permeability,therefore maintaining the root activity is closely associated with keeping higher leaf relative water content in maize.In addition,because of the significant difference between severe water stress treatment and sufficient water supplying treatment above characteristics,and insignificant difference between light water stress and sufficient water supplying treatment.Light water stress [(60±5)%] can be as minimum index for normal growth and development of summer maize.
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Claims 15
Claim · model-written summary
Drought decreased maize leaf relative water content.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf relative water content and roots vitality decreased,leave water-holding capacity declined apparently,the plasma membrane permeability of leave and roots enhanced under soil drought in maize”
Claim · model-written summary
Drought decreased maize root vitality.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf relative water content and roots vitality decreased,leave water-holding capacity declined apparently,the plasma membrane permeability of leave and roots enhanced under soil drought in maize”
Claim · model-written summary
Drought reduced maize leaf water-holding capacity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leave water-holding capacity declined apparently,the plasma membrane permeability of leave and roots enhanced under soil drought in maize”
Claim · model-written summary
Drought increased leaf plasma membrane permeability.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plasma membrane permeability of leave and roots enhanced under soil drought in maize”
Claim · model-written summary
Drought increased root plasma membrane permeability.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plasma membrane permeability of leave and roots enhanced under soil drought in maize”
Claim · model-written summary
Root membrane permeability was negatively associated with leaf relative water content under drought.
- Treatment
- soil droughte0
- Outcome
- root and leaf plasma-membrane permeabilitye0
- Direction
- negatively relatede0
- Comparator
- leaf relative water contente0
Not reportedTaxon
Verbatim
e0“Under soil drought,the root and leaf plasma-membrane permeability were negatively related to the leaf relative water content”
Claim · model-written summary
Leaf membrane permeability was negatively associated with leaf relative water content under drought.
- Treatment
- soil droughte0
- Outcome
- leaf plasma-membrane permeabilitye0
- Direction
- negatively relatede0
- Comparator
- leaf relative water contente0
Not reportedTaxon
Verbatim
e0“Under soil drought,the root and leaf plasma-membrane permeability were negatively related to the leaf relative water content”
Claim · model-written summary
Root permeability increased more sharply than leaf permeability under drought.
Not reportedTaxon
Verbatim
e0“the root plasma-membrane permeability enhanced more sharply than the leaf”
Claim · model-written summary
Root membrane permeability was positively associated with leaf water-holding capacity.
- Outcome
- root and leaf plasma-membrane permeabilitye0
- Direction
- positively relatede0
- Comparator
- leaves holding-water capacitye0
Not reportedTaxon
Verbatim
e0“the root and leaf plasma-membrane permeability were positively related to the leaves holding-water capacity”
Claim · model-written summary
Leaf membrane permeability was positively associated with leaf water-holding capacity.
- Outcome
- leaf plasma-membrane permeabilitye0
- Direction
- positively relatede0
- Comparator
- leaves holding-water capacitye0
Not reportedTaxon
Verbatim
e0“the root and leaf plasma-membrane permeability were positively related to the leaves holding-water capacity”
Claim · model-written summary
Root and leaf membrane permeability were positively associated.
- Outcome
- root plasma-membrane permeabilitye0
- Direction
- positively relatede0
- Comparator
- leaf plasma-membrane permeabilitye0
Not reportedTaxon
Verbatim
e0“the root plasma-membrane permeability were also positively related to the leaf plasma-membrane permeability”
Claim · model-written summary
Maintaining root activity was linked to higher leaf relative water content.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintaining the root activity is closely associated with keeping higher leaf relative water content in maize”
Claim · model-written summary
Severe stress differed significantly from sufficient watering on the studied characteristics.
- Treatment
- severe water stress treatmente0
- Outcome
- above characteristicse0
- Comparator
- sufficient water supplying treatmente0
Not reportedTaxonDirection
Verbatim
e0“significant difference between severe water stress treatment and sufficient water supplying treatment above characteristics”
Claim · model-written summary
Light stress did not significantly differ from sufficient watering on the studied characteristics.
Not reportedTaxonDirection
Verbatim
e0“insignificant difference between light water stress and sufficient water supplying treatment”
Claim · model-written summary
The authors propose light water stress at (60±5)% as a minimum index for normal maize growth.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light water stress [(60±5)%] can be as minimum index for normal growth and development of summer maize”
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