Abstract
Several experiments were conducted in this investigation with the objective of determining the chemical components and the physical state of an optimal medium for the growth and elongation of excised date palm, cv Sukkari, roots. The chemical tests carried out included: Comparison of (MS)-salts with “White's”-salts mixture and different concentrations of (MS)-salts and its chelated iron; sugars; Modified White's Organics; inositol; adenine sulfate; growth regulators; and some antioxidants. The physical tests, on the other hand, included comparison of the growth and elongation of cultured roots in a liquid or on solidified nutrient media. The effects of various pH values were also tested. Roots were cultured in basal nutrient media composed of: (MS)-salts mixture, and (in mg·liter –1 ): NaH 2 PO 4 ·H 2 O, 170; sucrose, 30,000; inositol, 200; Modified White's Organics; adenine sulfate, 120; activated charcoal, 1500; (2,4-D), 1; kinetin, 2. pH was adjusted at 5.7 ± 01. (MS)-salts mixture was found to be superior to “White's”-salts. No significant difference was observed between (1/2MS) and full-strength (MS)-salts. However, twice the concentration was found to be inhibitory. The normal concentration of (MS)-Fe was found to be optimum for root growth and elongation. The optimal concentration most suitable for the growth and elongation of excised date palm roots has been determined for each of: sugars; Modified White's Organics; inositol; and adenine sulfate. The only growth regulator that needs to be added to the nutrient medium is 2,4-D at 0.1–1.0 mg·liter –1 . The study showed the importance of the inclusion of activated charcoal to the nutrient medium. The growth and elongation of roots were both stimulated at all concentrations tested. (PVP), on the other hand, was inhibitory at all concentrations tested. Shaken liquid media was recommended for better root growth and elongation at pH 7.0–8.0. Incidentally, the medium developed was found to support the growth and elongation of roots excised from two other cultivars, namely `Khudri' and `Khaias'.
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Claims 10
Claim · model-written summary
MS salts were superior to White's salts for excised date palm root growth.
- Taxon
- Phoenix dactylifera
Phoenix dactyliferat0 - Treatment
- (MS)-salts mixturee1
- Outcome
- superiore1
- Direction
- superiore1
- Comparator
- White'se1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e1“(MS)-salts mixture was found to be superior to “White's”-salts”
Claim · model-written summary
Half-strength and full-strength MS salts gave no significant difference.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- (1/2MS)e2
- Outcome
- differencee2
- Direction
- No significant differencee2
- Comparator
- full-strength (MS)-saltse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e2“No significant difference was observed between (1/2MS) and full-strength (MS)-salts”
Claim · model-written summary
Twice the concentration of the MS salts was inhibitory for excised date palm roots.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- twice the concentratione3
- Outcome
- inhibitorye3
- Direction
- inhibitorye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e3“twice the concentration was found to be inhibitory”
Claim · model-written summary
The normal concentration of MS-Fe was optimum for root growth and elongation of excised date palm roots.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- normal concentration of (MS)-Fee4
- Outcome
- root growth and elongatione4
- Direction
- optimume4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e4“The normal concentration of (MS)-Fe was found to be optimum for root growth and elongation”
Claim · model-written summary
2,4-D at 0.1–1.0 mg/l is recommended as the only growth regulator to add to the medium for date palm roots.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- 2,4-De5
- Outcome
- only growth regulatore5
- Value
- 0.1–1.0 mg·liter –1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e5“The only growth regulator that needs to be added to the nutrient medium is 2,4-D at 0.1–1.0 mg·liter –1”
Claim · model-written summary
Activated charcoal stimulated growth and elongation of excised date palm roots at all concentrations tested.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- activated charcoale6
- Outcome
- growth and elongation of rootse7
- Direction
- stimulatede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e6“The study showed the importance of the inclusion of activated charcoal to the nutrient medium”
e7“The growth and elongation of roots were both stimulated at all concentrations tested”
Claim · model-written summary
PVP was inhibitory at all concentrations tested for excised date palm roots.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- PVPe1
- Outcome
- inhibitorye1
- Direction
- inhibitorye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e1“(PVP), on the other hand, was inhibitory at all concentrations tested”
Claim · model-written summary
Shaken liquid media is recommended for better root growth and elongation at pH 7.0–8.0.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Treatment
- Shaken liquid mediae1
- Outcome
- better root growth and elongatione1
- Qualifier
- at pH 7.0–8.0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e1“Shaken liquid media was recommended for better root growth and elongation at pH 7.0–8.0”
Claim · model-written summary
The developed medium supported growth and elongation of roots excised from two other date palm cultivars.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Material
- `Khudri' and `Khaias'e1
- Outcome
- growth and elongation of rootse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e1“the medium developed was found to support the growth and elongation of roots excised from two other cultivars, namely `Khudri' and `Khaias'”
Claim · model-written summary
Optimal concentrations were determined for sugars, Modified White's Organics, inositol and adenine sulfate.
- Taxon
- Phoenix dactyliferaPhoenix dactyliferat0
- Outcome
- optimal concentratione1
- Qualifier
- sugars; Modified White's Organics; inositol; and adenine sulfatee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Date Palm (Phoenix dactylifera L.)”
e1“The optimal concentration most suitable for the growth and elongation of excised date palm roots has been determined for each of: sugars; Modified White's Organics; inositol; and adenine sulfate”
The same questions in other papers
charcoal · growth · Phoenix dactylifera (date palm)Results differ
14 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
12 papers more in this group
See all 16 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.