Abstract
The field experiment was conducted to evaluate the effect of foliar spray of calcium lactate (Ca) on fresh yield and biochemical attribute of lettuce (Lactuca sativa L.) under water deficit stress, in a split plot form based on a randomized complete block design with three Irrigation regimes (70, 85 and 100% ETc) and three calcium lactate treatment levels (0, 0.75 and 1.5 g L-1) in three replicates. Results revealed that water deficit stress significantly reduced the growth and yield of plant, leaf relative water contents, excised leaf water retention and N, P and Mg absorption while led to increase anthocyanin, phenol and flavonoids contents, antioxidant activity, peroxidase and catalase activity and water use efficiency. The results of our research indicated that the application of CaL 1.5 g L-1 is capable of increasing lettuce yield, under field conditions with 30% less than optimal irrigation. CaL treatment showed a clearly protective effect in stressed plants, enhancing their leaf water status, antioxidant capacity and N and Ca contents in comparison to untreated plants. Therefore, feeding leaves by CaL with increasing antioxidant activity and nutrients content especially N led to increase growth and fresh yield of lettuce under normal irrigation and water deficit conditions.
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Claims 8
Claim · model-written summary
Water deficit reduced lettuce growth and yield.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- water deficit stresse0
- Outcome
- growth and yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit stress significantly reduced the growth and yield of plant”
t0“lettuce (Lactuca sativa L.)”
Claim · model-written summary
Water deficit reduced leaf water status and N, P and Mg absorption.
- Taxon
- lettuceLactuca sativat0
- Treatment
- water deficit stresse0
- Outcome
- leaf relative water contents, excised leaf water retention and N, P and Mg absorptione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit stress significantly reduced the growth and yield of plant, leaf relative water contents, excised leaf water retention and N, P and Mg absorption”
t0“lettuce (Lactuca sativa L.)”
Claim · model-written summary
Water deficit increased anthocyanin, phenol and flavonoid contents.
- Taxon
- lettuceLactuca sativat0
- Treatment
- water deficit stresst0
- Outcome
- anthocyanin, phenol and flavonoids contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“led to increase anthocyanin, phenol and flavonoids contents”
t0“lettuce (Lactuca sativa L.) under water deficit stress”
Claim · model-written summary
Water deficit increased antioxidant, peroxidase and catalase activity.
- Taxon
- lettuceLactuca sativat0
- Treatment
- water deficit stresst0
- Outcome
- antioxidant activity, peroxidase and catalase activitye0
- Direction
- increaseinferredt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant activity, peroxidase and catalase activity and water use efficiency”
t0“lettuce (Lactuca sativa L.) under water deficit stress”
Claim · model-written summary
Water deficit increased water use efficiency.
- Taxon
- lettuceLactuca sativat0
- Treatment
- water deficit stresst0
- Outcome
- water use efficiencye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water use efficiency”
t0“lettuce (Lactuca sativa L.) under water deficit stress”
Claim · model-written summary
Foliar CaL at 1.5 g L-1 increased lettuce yield with 30% less irrigation.
- Taxon
- lettuceLactuca sativae0
- Treatment
- CaL 1.5 g L-1e0
- Outcome
- lettuce yielde0
- Direction
- increasinge0
- Comparator
- optimal irrigatione0
- Setting
- field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of CaL 1.5 g L-1 is capable of increasing lettuce yield, under field conditions with 30% less than optimal irrigation.”
Claim · model-written summary
CaL improved leaf water status relative to untreated stressed plants.
- Taxon
- lettuceLactuca sativat0
- Treatment
- CaL treatmente0
- Outcome
- leaf water statuse0
- Direction
- enhancinge0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CaL treatment showed a clearly protective effect in stressed plants, enhancing their leaf water status, antioxidant capacity and N and Ca contents in comparison to untreated plants.”
t0“lettuce (Lactuca sativa L.)”
Claim · model-written summary
CaL improved antioxidant capacity and N and Ca contents relative to untreated plants.
- Taxon
- lettuceLactuca sativat0
- Treatment
- CaL treatmente0
- Outcome
- antioxidant capacity and N and Ca contentse0
- Direction
- enhancinge0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CaL treatment showed a clearly protective effect in stressed plants, enhancing their leaf water status, antioxidant capacity and N and Ca contents in comparison to untreated plants.”
t0“lettuce (Lactuca sativa L.)”
The same questions in other papers
drought · yield · Lactuca sativa (garden lettuce)Results differ
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
2 papers more in this group
See all 6 papers →drought · physiology: water · Lactuca sativa (garden lettuce)Positive and negative results
2 in the opposite direction
- positive
- positive
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.