Paper · 2020 · International Journal of Chemical Studies

Callus induction, somatic embryogenesis, in vitro plantlet development and ex vitro transplantation of two date palm (Phoenix dactylifera L.) cultivars

Kamlesh Kumar; Dhurendra Singh; PL Saroj

7
claims
14
verbatim quotes
8
citations
4
research areas
✓
Open access

Abstract

The protocol has been developed and standardized in two date palm (Phoenix dactylifera L.) cultivars. Protocol was cultivar and plant growth regulators dependant. Embryogenic callus from excised shoot tips was induced on MS medium supplemented with 2,4-D 100 mg/l. A combination of ά-naphthalene acetic acid and 6-benzyladenine (NAA 0.1 + BA 0.05) in MS medium multiplied callus 3-4 times followed by abscisic acid (ABA, 0.5 mg/l) treatment matures callus and accelerated the initiation of somatic embryos in both the cultivars. Treatment combination of abscisic acid (0.5 mg/l) + indole-3-butyric acid (IBA, 0.05 mg/l) in medium found effective in maturation of somatic embryos. Somatic embryos germinated and converted into plantlets in half strength modified MS medium containing different concentrations of IBA @ 0.1, 0.2, 0.3 mg/l and NAA @ 0.1, 0.2, 0.3 mg/l. At a higher concentration (0.3 mg/l), in vitro roots and leaves (plantlets) were developed while at lower concentrations, response was comparatively poor. Secondary hardened plants after primary hardening were transplanted in the field for assessing their field performance. The findings of this paper indicate that enhanced production of somatic embryos and their conversion into plantlets can be a potential source of alternative mass propagation of date palm.

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Claims 7

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The propagation protocol depended on cultivar and growth regulators.

Taxon
date palmPhoenix dactyliferat0
Outcome
Protocol was cultivar and plant growth regulators dependante0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“Protocol was cultivar and plant growth regulators dependant.”

✓ located verbatim in the source · abstract, characters 102–162 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MS medium with 2,4-D induced embryogenic callus from shoot tips.

Taxon
date palmPhoenix dactyliferat0
Organ / stage
excised shoot tipse0
Treatment
MS medium supplemented with 2,4-D 100 mg/le0
Outcome
Embryogenic calluse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“Embryogenic callus from excised shoot tips was induced on MS medium supplemented with 2,4-D 100 mg/l.”

✓ located verbatim in the source · abstract, characters 163–264 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NAA plus BA multiplied callus 3-4 times.

Taxon
date palmPhoenix dactyliferat0
Treatment
NAA 0.1 + BA 0.05e0
Outcome
calluse0
Direction
multipliede0
Value
3-4 timese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“A combination of ά-naphthalene acetic acid and 6-benzyladenine (NAA 0.1 + BA 0.05) in MS medium multiplied callus 3-4 times”

✓ located verbatim in the source · abstract, characters 265–388 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA treatment matured callus and accelerated somatic embryo initiation.

Taxon
date palmPhoenix dactyliferat0
Treatment
abscisic acid (ABA, 0.5 mg/l) treatmente0
Outcome
initiation of somatic embryose0
Direction
acceleratede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“abscisic acid (ABA, 0.5 mg/l) treatment matures callus and accelerated the initiation of somatic embryos in both the cultivars.”

✓ located verbatim in the source · abstract, characters 401–528 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA and IBA medium was effective for somatic embryo maturation.

Taxon
date palmPhoenix dactyliferat0
Treatment
abscisic acid (0.5 mg/l) + indole-3-butyric acid (IBA, 0.05 mg/l)e0
Outcome
maturation of somatic embryose0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“Treatment combination of abscisic acid (0.5 mg/l) + indole-3-butyric acid (IBA, 0.05 mg/l) in medium found effective in maturation of somatic embryos.”

✓ located verbatim in the source · abstract, characters 529–679 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Somatic embryos germinated and formed plantlets in half strength MS medium with IBA and NAA.

Taxon
date palmPhoenix dactyliferat0
Treatment
half strength modified MS medium containing different concentrations of IBA @ 0.1, 0.2, 0.3 mg/l and NAA @ 0.1, 0.2, 0.3 mg/le0
Outcome
Somatic embryos germinated and converted into plantletse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“Somatic embryos germinated and converted into plantlets in half strength modified MS medium containing different concentrations of IBA @ 0.1, 0.2, 0.3 mg/l and NAA @ 0.1, 0.2, 0.3 mg/l.”

✓ located verbatim in the source · abstract, characters 680–865 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 0.3 mg/l, plantlet roots and leaves developed, versus poorer responses at lower concentrations.

Taxon
date palmPhoenix dactyliferat0
Treatment
higher concentration (0.3 mg/l)e0
Outcome
in vitro roots and leaves (plantlets)e0
Comparator
lower concentrationse0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“date palm (Phoenix dactylifera L.)”

✓ located verbatim in the source · title, characters 107–141 · show in text ↑
e0

“At a higher concentration (0.3 mg/l), in vitro roots and leaves (plantlets) were developed while at lower concentrations, response was comparatively poor.”

✓ located verbatim in the source · abstract, characters 866–1020 · show in text ↑

N-benzyladenine · growth · Phoenix dactylifera (date palm)Positive and negative results

23 papers: 21 positive, 2 negative or no effect

20 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. positive

19 papers more in this group

See all 23 papers →

indole-3-butyric acid · growth · Phoenix dactylifera (date palm)Positive and negative results

24 papers: 23 positive, 1 negative or no effect

22 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

20 papers more in this group

See all 24 papers →

2,4-D · growth · Phoenix dactylifera (date palm)Positive and negative results

25 papers: 22 positive, 3 negative or no effect

21 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. negative
  3. no effect

21 papers more in this group

See all 25 papers →

1-naphthaleneacetic acid · growth · Phoenix dactylifera (date palm)Positive and negative results

39 papers: 38 positive, 1 negative or no effect

37 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

35 papers more in this group

See all 39 papers →

(+)-abscisic acid · growth · Phoenix dactylifera (date palm)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

in vitro · growth · Phoenix dactylifera (date palm)Positive and negative results

51 papers: 50 positive, 1 negative or no effect

49 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

47 papers more in this group

See all 51 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.