Abstract
Tetraploid line development is beset with poor germination and seedling vigour of tetraploid seeds primarily due to thick seed coat and under-developed embryo. Tetraploid (T°) seeds generated through colchicine application on three watermelon genotypes (Sugar Baby, California Sweet and 5255-1-3-1) were subjected to priming treatments viz; Gibbrellic acid (GA3) @ 100 ppm, Ethrel @ 100 ppm, Potassium nitrate (KNO3) @ 1% and Potassium dihydogen orthophosphate (KH2PO4) @ 10-2 M for 12 and 24 hours, respectively. Seeds primed for longer duration i.e. 24 hour exhibited better germination and growth characteristics than their respective 12 hour priming treatments. Seeds invigorated with KH2PO4 for 24 hours had the greatest germination (67.47%) and longest seedlings (10.423cm plumule, 7.261cm radicle). Ethrel @ 100 ppm for 24 hours produced the seedling having the highest dry weight (0.125g). Non primed seeds fared poorly in all parameters. California Sweet responded best to seed priming treatments (65.21% germination; 0.124g, seedling dry weight). In a first report, KH2PO4 priming treatment can be effectively used to enhance the emergence and other seed attributes of tetraploid watermelon in early generations.
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Claims 9
Claim · model-written summary
Twenty-four-hour priming improved germination and growth over twelve-hour priming.
- Taxon
- watermelon
Citrullus lanatust0 - Treatment
- 24 houre0
- Outcome
- germination and growth characteristicse0
- Direction
- bettere0
- Comparator
- 12 hour priming treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds primed for longer duration i.e. 24 hour exhibited better germination and growth characteristics than their respective 12 hour priming treatments”
t0“watermelon”
Claim · model-written summary
KH2PO4 priming for 24 hours gave the greatest germination of 67.47%.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- KH2PO4 for 24 hourse0
- Outcome
- germinatione0
- Direction
- greateste0
- Value
- 67.47%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds invigorated with KH2PO4 for 24 hours had the greatest germination (67.47%)”
t0“watermelon”
Claim · model-written summary
KH2PO4 priming produced a 10.423cm plumule.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- KH2PO4e1
- Outcome
- plumulee0
- Direction
- longeste0
- Value
- 10.423cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“longest seedlings (10.423cm plumule, 7.261cm radicle)”
e1“Seeds invigorated with KH2PO4 for 24 hours had the greatest germination (67.47%)”
t0“watermelon”
Claim · model-written summary
KH2PO4 priming produced a 7.261cm radicle.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“longest seedlings (10.423cm plumule, 7.261cm radicle)”
e1“Seeds invigorated with KH2PO4 for 24 hours had the greatest germination (67.47%)”
t0“watermelon”
Claim · model-written summary
Ethrel priming for 24 hours gave the highest seedling dry weight of 0.125g.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- Ethrel @ 100 ppm for 24 hourse0
- Outcome
- dry weighte0
- Direction
- higheste0
- Value
- 0.125ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethrel @ 100 ppm for 24 hours produced the seedling having the highest dry weight (0.125g)”
t0“watermelon”
Claim · model-written summary
Non-primed seeds performed poorly across parameters.
- Taxon
- watermelonCitrullus lanatust0
- Outcome
- all parameterse0
- Direction
- poorlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Non primed seeds fared poorly in all parameters”
t0“watermelon”
Claim · model-written summary
California Sweet responded best to priming, with 65.21% germination.
- Taxon
- watermelonCitrullus lanatust0
- Material
- California Sweete0
- Outcome
- germinatione0
- Direction
- beste0
- Value
- 65.21%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“California Sweet responded best to seed priming treatments (65.21% germination; 0.124g, seedling dry weight)”
t0“watermelon”
Claim · model-written summary
California Sweet responded best to priming, with 0.124g seedling dry weight.
- Taxon
- watermelonCitrullus lanatust0
- Material
- California Sweete0
- Outcome
- seedling dry weighte0
- Direction
- beste0
- Value
- 0.124ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“California Sweet responded best to seed priming treatments (65.21% germination; 0.124g, seedling dry weight)”
t0“watermelon”
Claim · model-written summary
Authors recommend KH2PO4 priming to improve tetraploid watermelon emergence.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- KH2PO4 priming treatmente0
- Outcome
- enhance the emergence and other seed attributese0
- Direction
- enhancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 priming treatment can be effectively used to enhance the emergence and other seed attributes of tetraploid watermelon in early generations”
The same questions in other papers
(2-chloroethyl)phosphonic acid · growth · Citrullus lanatus (watermelon)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.