Abstract
Date palm is one of the most economically powerful fruit tree grown in Egypt. Although Egypt tops the list of date's product in the world. Egyptian date palm industry suffers from many constraints. Low-quality varieties and limited conventional propagation methods are the main obstacles. Extension of date palm plantations in various areas of Egypt and replanting trees to compensate loss due to diseases or human factors are reduced expected to lack adequate planting materials. The knowledge of the interplay between some fundamental medium parameters allows not only the optimization of the micropropagation system but also gives models to investigate and rationalize the process of induction and development of somatic embryogenesis itself. In vitro growth and development of produced embryos and plantlets has been improved by using of full MS salt strength. MS medium modification of some nutrients concentrations, i.e. NH4NO3(1237.5 mg/l) which recorded (13.20 and 9.60 embryos/explant for Medjool and Khalas respectively) at the end of three subculture. KNO3 which gave a higher score of mature somatic embryos (14.40 and 10.00 embryo/culture for Medjool and Khalas respectively) was obtained with 1425 mg/l KNO3 after three subcultures as compared to those obtained from any other treatment combination. The morphological response of somatic embryos production is controlled by some internal factors that fall under the influence of the genetic make-up of the plant and specialized for each genotype that is responsible for the production of somatic embryos (Medjool and Khalas cultivars). The genetic make-up is a decisive factor during somatic embryos production. There are differences between the two cultivars named, Medjool and Khalas. The produced somatic embryos at germination stage were transferred from the two experiments namely ammonium nitrate and potassium nitrate to multiplication and rooting stages for more in vitro growth for 12 weeks at three re-cultures. Individual shoots were cultured on modified MS basal medium in addition to IBA (1.0 mg/l), sucrose (30 g/l) and solidified with phyto-agar (8.0 g/l) for more in vitro growth and development. In vitro plantlets were transferred to acclimatization stage in plastic pots 5*18 cm diameter containing peatmoss, perlite and washed sand at equal volume. In vitro date palm plantlets produced from rooting stage grow well in the greenhouse during acclimatization stage without morphological abnormality. The growth and development of Medjool cultivar were better than Khalas during in vitro culture and ex vitro acclimatization.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Full-strength MS salts improved in vitro growth and development of embryos and plantlets.
- Taxon
- Date Palm
Phoenix dactyliferat0 - Treatment
- full MS salt strengthe0
- Outcome
- growth and development of produced embryos and plantletse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro growth and development of produced embryos and plantlets has been improved by using of full MS salt strength”
t0“Date Palm”
Claim · model-written summary
NH4NO3 at 1237.5 mg/l yielded 13.20 embryos per explant for Medjool.
- Taxon
- Date PalmPhoenix dactyliferat0
- Material
- Medjoole0
- Treatment
- NH4NO3(1237.5 mg/l)e0
- Outcome
- embryos/explante0
- Value
- 13.20e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NH4NO3(1237.5 mg/l) which recorded (13.20 and 9.60 embryos/explant for Medjool and Khalas respectively)”
t0“Date Palm”
Claim · model-written summary
NH4NO3 at 1237.5 mg/l yielded 9.60 embryos per explant for Khalas.
- Taxon
- Date PalmPhoenix dactyliferat0
- Material
- Khalase0
- Treatment
- NH4NO3(1237.5 mg/l)e0
- Outcome
- embryos/explante0
- Value
- 9.60e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NH4NO3(1237.5 mg/l) which recorded (13.20 and 9.60 embryos/explant for Medjool and Khalas respectively)”
t0“Date Palm”
Claim · model-written summary
KNO3 at 1425 mg/l produced 14.40 mature embryos per culture for Medjool.
- Taxon
- Date PalmPhoenix dactyliferat0
- Material
- Medjoole0
- Treatment
- 1425 mg/l KNO3e0
- Outcome
- mature somatic embryose0
- Direction
- highere0
- Value
- 14.40e0
- Comparator
- any other treatment combinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KNO3 which gave a higher score of mature somatic embryos (14.40 and 10.00 embryo/culture for Medjool and Khalas respectively) was obtained with 1425 mg/l KNO3 after three subcultures as compared to those obtained from any other treatment combination”
t0“Date Palm”
Claim · model-written summary
KNO3 at 1425 mg/l produced 10.00 mature embryos per culture for Khalas.
- Taxon
- Date PalmPhoenix dactyliferat0
- Material
- Khalase0
- Treatment
- 1425 mg/l KNO3e0
- Outcome
- mature somatic embryose0
- Direction
- highere0
- Value
- 10.00 embryo/culturee0
- Comparator
- any other treatment combinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KNO3 which gave a higher score of mature somatic embryos (14.40 and 10.00 embryo/culture for Medjool and Khalas respectively) was obtained with 1425 mg/l KNO3 after three subcultures as compared to those obtained from any other treatment combination”
t0“Date Palm”
Claim · model-written summary
Date palm plantlets grew well in greenhouse acclimatization without morphological abnormalities.
- Taxon
- date palmPhoenix dactyliferae0
- Organ / stage
- plantletse0
- Outcome
- grow welle0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro date palm plantlets produced from rooting stage grow well in the greenhouse during acclimatization stage without morphological abnormality”
Claim · model-written summary
Medjool grew and developed better than Khalas in vitro and during acclimatization.
- Taxon
- date palmPhoenix dactyliferat0
- Material
- Medjoole0
- Outcome
- growth and developmente0
- Direction
- bettere0
- Comparator
- Khalase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth and development of Medjool cultivar were better than Khalas during in vitro culture and ex vitro acclimatization”
t0“Date Palm”
The same questions in other papers
potassium nitrate · growth · Phoenix dactylifera (date palm)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
salinity · growth · Phoenix dactylifera (date palm)Positive and negative results
16 in the opposite direction
- negative
- negative
- negative
13 papers more in this group
See all 17 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.