Abstract
Two field experiments were conducted during 2013/2014 and2014/2015 in a private Farm, Ibshway district, Fayoum, Egypt to study deficitirrigation (60, 80 and 100% ETc) and ascorbic acid foliar application (0, 200and 400 mg l-1) on growth, relative water content (RWC), membrane stabilityindex (MSI), electrolyte leakage (EL), leaf photosynthetic pigments (LPS),osmoprotectants (OS) and DPPH radical-scavenging activity of broccoliplants. The obtained results clarified that, irrigation amount at 80% or 100%ETc, significantly, resulted in higher mean values of stem length anddiameter, number of leaves plant-1, leaf MSI, RWC, carotenoids, DPPHradical-scavenging and total free amino acids content than irrigation amountat 60% ETc. On other side, irrigation amounts, irrespective the level used, didnot reflect any noticeable impact on number of branches plant-1 and headcontents of ascorbic acid. Increasing irrigation water from 60% up to 100%ETc decreased the contents of leaf EL, chlorophyll A, B, A + B, anthocyanin,free proline and TSS. Exogenous application of ascorbic acid atconcentrations of 200 and 400 mg l-1, significantly improved most studiedgrowth parameters, RWC, MSI, anthocyanin, DPPH, total free amino acidsand endogenous ascorbic acid however, leaf EL decreased gradually.Moreover, the impact of ascorbic acid, irrespective of the concentration used,on leaf photosynthetic pigment, free proline and total soluble sugars contentswas at par.
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Claims 6
Claim · model-written summary
Irrigation at 80% or 100% ETc increased stem traits, leaves, water status, carotenoids, DPPH activity and amino acids versus 60% ETc.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- 80% or 100%ETce0
- Outcome
- leaf MSI, RWC, carotenoidse0
- Direction
- highere0
- Comparator
- 60% ETce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation amount at 80% or 100%ETc, significantly, resulted in higher mean values of stem length anddiameter, number of leaves plant-1, leaf MSI, RWC, carotenoids, DPPHradical-scavenging and total free amino acids content than irrigation amountat 60% ETc.”
t0“BROCCOLI”
Claim · model-written summary
Irrigation level had no noticeable effect on branch number or head ascorbic acid.
- Taxon
- BROCCOLIBrassica oleracea var. italicat0
- Treatment
- irrigation amountse0
- Outcome
- number of branches plant-1 and headcontents of ascorbic acide0
- Direction
- didnot reflect any noticeable impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation amounts, irrespective the level used, didnot reflect any noticeable impact on number of branches plant-1 and headcontents of ascorbic acid.”
t0“BROCCOLI”
Claim · model-written summary
Increasing irrigation from 60% to 100% ETc decreased leaf electrolyte leakage, chlorophyll, anthocyanin, proline and soluble solids.
- Taxon
- BROCCOLIBrassica oleracea var. italicat0
- Treatment
- 100%ETce0
- Outcome
- leaf EL, chlorophyll A, Be0
- Direction
- decreasede0
- Comparator
- 60%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing irrigation water from 60% up to 100%ETc decreased the contents of leaf EL, chlorophyll A, B, A + B, anthocyanin,free proline and TSS.”
t0“BROCCOLI”
Claim · model-written summary
Ascorbic acid at 200 and 400 mg l-1 improved growth, water status, anthocyanin, DPPH activity and amino acid content.
- Taxon
- BROCCOLIBrassica oleracea var. italicat0
- Treatment
- ascorbic acid atconcentrations of 200 and 400 mg l-1e0
- Outcome
- RWC, MSI, anthocyanine0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous application of ascorbic acid atconcentrations of 200 and 400 mg l-1, significantly improved most studiedgrowth parameters, RWC, MSI, anthocyanin, DPPH, total free amino acidsand endogenous ascorbic acid however, leaf EL decreased gradually.”
t0“BROCCOLI”
Claim · model-written summary
Leaf electrolyte leakage gradually decreased with ascorbic acid application.
- Taxon
- BROCCOLIBrassica oleracea var. italicat0
- Treatment
- ascorbic acid atconcentrations of 200 and 400 mg l-1e0
- Outcome
- leaf ELe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous application of ascorbic acid atconcentrations of 200 and 400 mg l-1, significantly improved most studiedgrowth parameters, RWC, MSI, anthocyanin, DPPH, total free amino acidsand endogenous ascorbic acid however, leaf EL decreased gradually.”
t0“BROCCOLI”
Claim · model-written summary
Ascorbic acid concentration gave similar leaf pigment, proline and soluble sugar content.
- Taxon
- BROCCOLIBrassica oleracea var. italicat0
- Treatment
- ascorbic acide0
- Outcome
- leaf photosynthetic pigment, free proline and total soluble sugarse0
- Direction
- at pare0
- Comparator
- irrespective of the concentration usede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the impact of ascorbic acid, irrespective of the concentration used,on leaf photosynthetic pigment, free proline and total soluble sugars contentswas at par.”
t0“BROCCOLI”
The same questions in other papers
ascorbic acid · physiology: oxidative · Brassica oleracea (wild cabbage)Results agree
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- positive
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See all 7 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.