Abstract
Pollen germination and pollen tube growth might have a significant effect on fruit and seed production. This study was conducted to investigate the best medium for pollen germination and pollen tube growth of date palm male. Significant differences in percentages of pollen germination and pollen tube growth were observed between mediums. The use agar-based medium containing 5% of sucrose, 0.20 g/l boric acid, 0.42 g/l calcium nitrate, 0.1 g/l potassium nitrate and 0.22 g/l magnesium sulfate gave the best results in terms of germination and/or tube growth. The germination percentage was declined with polyethylene glycol and naphthaleneacetic acid, and inhibited completely with fructose, glucose and date extract. These results could have implications not only for optimizing pollen management in date palm but also to select the best pollinizer for this specie.Keywords: In vitro pollen germination; Sucrose; Fructose; Glucose; Naphthaleneacetic acid; basal medium.
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Claims 7
Claim · model-written summary
Pollen germination and tube growth differed significantly among media.
- Taxon
- date palm (Phoenix dactylifera L.)
Phoenix dactyliferat0 - Outcome
- percentages of pollen germination and pollen tube growthe0
- Setting
- mediumse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences in percentages of pollen germination and pollen tube growth were observed between mediums.”
t0“date palm (Phoenix dactylifera L.)”
Claim · model-written summary
The specified agar medium gave the best pollen germination and tube growth results.
- Taxon
- date palm (Phoenix dactylifera L.)Phoenix dactyliferat0
- Treatment
- agar-based medium containing 5% of sucrose, 0.20 g/l boric acid, 0.42 g/l calcium nitrate, 0.1 g/l potassium nitrate and 0.22 g/l magnesium sulfatee0
- Outcome
- germination and/or tube growthe0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use agar-based medium containing 5% of sucrose, 0.20 g/l boric acid, 0.42 g/l calcium nitrate, 0.1 g/l potassium nitrate and 0.22 g/l magnesium sulfate gave the best results in terms of germination and/or tube growth.”
t0“date palm (Phoenix dactylifera L.)”
Claim · model-written summary
Polyethylene glycol reduced pollen germination.
- Taxon
- date palm (Phoenix dactylifera L.)Phoenix dactyliferat0
- Treatment
- polyethylene glycole0
- Outcome
- germination percentagee0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage was declined with polyethylene glycol and naphthaleneacetic acid, and inhibited completely with fructose, glucose and date extract.”
t0“date palm (Phoenix dactylifera L.)”
Claim · model-written summary
Naphthaleneacetic acid reduced pollen germination.
- Taxon
- date palm (Phoenix dactylifera L.)Phoenix dactyliferat0
- Treatment
- naphthaleneacetic acide0
- Outcome
- germination percentagee0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage was declined with polyethylene glycol and naphthaleneacetic acid, and inhibited completely with fructose, glucose and date extract.”
t0“date palm (Phoenix dactylifera L.)”
Claim · model-written summary
Pollen germination was completely inhibited with fructose.
- Taxon
- date palm (Phoenix dactylifera L.)Phoenix dactyliferat0
- Treatment
- fructosee0
- Outcome
- germination percentagee0
- Direction
- inhibited completelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage was declined with polyethylene glycol and naphthaleneacetic acid, and inhibited completely with fructose, glucose and date extract.”
t0“date palm (Phoenix dactylifera L.)”
Claim · model-written summary
Pollen germination was completely inhibited with glucose.
- Taxon
- date palm (Phoenix dactylifera L.)Phoenix dactyliferat0
- Treatment
- glucosee0
- Outcome
- germination percentagee0
- Direction
- inhibited completelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage was declined with polyethylene glycol and naphthaleneacetic acid, and inhibited completely with fructose, glucose and date extract.”
t0“date palm (Phoenix dactylifera L.)”
Claim · model-written summary
Pollen germination was completely inhibited with date extract.
- Taxon
- date palm (Phoenix dactylifera L.)Phoenix dactyliferat0
- Treatment
- date extracte0
- Outcome
- germination percentagee0
- Direction
- inhibited completelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage was declined with polyethylene glycol and naphthaleneacetic acid, and inhibited completely with fructose, glucose and date extract.”
t0“date palm (Phoenix dactylifera L.)”
The same questions in other papers
glucose · growth · Phoenix dactylifera (date palm)Positive and negative results
2 in the opposite direction
- positive
- positive
fructose · growth · Phoenix dactylifera (date palm)Positive and negative results
2 in the opposite direction
- positive
- positive
poly(ethylene glycol) · growth · Phoenix dactylifera (date palm)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →1-naphthaleneacetic acid · growth · Phoenix dactylifera (date palm)Positive and negative results
38 in the opposite direction
- positive
- positive
- positive
35 papers more in this group
See all 39 papers →calcium nitrate · growth · Phoenix dactylifera (date palm)Results agree
2 papers in the same direction as this paper
- positive
- positive
boric acid · growth · Phoenix dactylifera (date palm)Results agree
2 papers in the same direction as this paper
- positive
- positive
potassium nitrate · growth · Phoenix dactylifera (date palm)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
sucrose · growth · Phoenix dactylifera (date palm)Results agree
19 papers in the same direction as this paper
- positive
- positive
- positive
16 papers more in this group
See all 20 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.