Abstract
The influence of osmotic potential and water potential on the leaf expansion and leaf weight were studied with a Japanese native tobacco variety ‘Shiroenshu’grown in irrigated or non-irrigated plots on volcanic ash soil. Water status in leaf, chemical component and yield of irrigated and non-irrigated tobacco were also examined. Leaf area and leaf weight of non-irrigated tobacco were smaller than those of irrigated tobacco. The decrease in leaf area and leaf weight were closely correlated with the depression of pressure potential (turgor pressure) of leaves. The rate of water loss at room temperature of detouched leaves of middle position in the irrigated tobacco was faster than that of the non-irrigated one. The rate of water loss in upper leaves was slower than that in lower ones.Chlorophyll content in the irrigated tobacco was maintained longer than those in non-irrigated one. It was supposed that the cells of the upper leaves of the irrigated tobacco were kept younger than that of the non-irrigated tobacco. Yield and quality of the irrigated tobacco were higher than those of the non-irrigated one.
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Claims 8
Claim · model-written summary
Non-irrigated tobacco had smaller leaf area and leaf weight than irrigated tobacco.
- Taxon
- tobacco
Nicotiana tabacume0 - Material
- Shiroenshue1
- Treatment
- non-irrigatede0
- Outcome
- Leaf area and leaf weighte0
- Direction
- smallere0
- Comparator
- irrigated tobaccoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf area and leaf weight of non-irrigated tobacco were smaller than those of irrigated tobacco.”
e1“Japanese native tobacco variety ‘Shiroenshu’”
Claim · model-written summary
Reduced tobacco leaf area and weight were closely correlated with depressed leaf turgor pressure.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- leavese0
- Outcome
- leaf area and leaf weighte0
- Direction
- decreasee0
- Qualifier
- pressure potential (turgor pressure)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease in leaf area and leaf weight were closely correlated with the depression of pressure potential (turgor pressure) of leaves.”
e1“Japanese native tobacco variety ‘Shiroenshu’”
Claim · model-written summary
Detached middle leaves of irrigated tobacco lost water faster at room temperature than non-irrigated leaves.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leaves of middle positione0
- Treatment
- irrigatede0
- Outcome
- rate of water losse0
- Direction
- fastere0
- Comparator
- non-irrigated onee0
- Setting
- room temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate of water loss at room temperature of detouched leaves of middle position in the irrigated tobacco was faster than that of the non-irrigated one.”
Claim · model-written summary
Upper tobacco leaves lost water more slowly than lower leaves.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- upper leavese0
- Outcome
- rate of water losse0
- Direction
- slowere0
- Comparator
- lower onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate of water loss in upper leaves was slower than that in lower ones.”
e1“Japanese native tobacco variety ‘Shiroenshu’”
Claim · model-written summary
Irrigated tobacco maintained chlorophyll content longer than non-irrigated tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- irrigatede0
- Outcome
- Chlorophyll contente0
- Direction
- maintained longere0
- Comparator
- non-irrigated onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll content in the irrigated tobacco was maintained longer than those in non-irrigated one.”
Claim · model-written summary
The authors inferred upper leaf cells of irrigated tobacco remained younger than those of non-irrigated plants.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- upper leavese0
- Outcome
- kept youngere0
- Comparator
- non-irrigated tobaccoe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was supposed that the cells of the upper leaves of the irrigated tobacco were kept younger than that of the non-irrigated tobacco.”
Claim · model-written summary
Irrigated tobacco had higher yield than non-irrigated tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- irrigatede0
- Outcome
- Yielde0
- Direction
- highere0
- Comparator
- non-irrigated onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and quality of the irrigated tobacco were higher than those of the non-irrigated one.”
Claim · model-written summary
Irrigated tobacco had higher quality than non-irrigated tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- irrigatede0
- Outcome
- qualitye0
- Direction
- highere0
- Comparator
- non-irrigated onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and quality of the irrigated tobacco were higher than those of the non-irrigated one.”
The same questions in other papers
irrigation · yield · Nicotiana tabacum (tobacco)Positive and negative results
16 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- negative
19 papers more in this group
See all 23 papers →irrigation · physiology: pigments · Nicotiana tabacum (tobacco)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →irrigation · quality: general · Nicotiana tabacum (tobacco)Results agree
13 papers in the same direction as this paper
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →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.