Abstract
Abstract Watermelon seeds ( Citrullus lanatus (Thunb.) Matsum. & Nakal cv. Sugar Baby) require high temperatures to germinate successfully. Under light conditions germination is inhibited at 20°C and lower and in the dark below 15°. The cause of the light inhibition at 20° lies in the embryo proper. Imbibition at 0° (up to 10 days) did not cause any apparent damage to the seeds, which germinated freely upon transfer to optimal temperature. Watermelon seeds could be primed for low-temperature germination by pretreatment at 30° or 35° or by imbibing the seeds in salt solutions prior to sowing. Inorganic osmoticum was superior to organic osmoticum. Differences in the efficacy of the priming existed among the different salt solutions tested. The best treatment was 2% or 3% KNO 3 for 6 days. NH 4 NO 3 , NaNO 3 , Ca(NO 3 ) 2 and KC1 had similar effectiveness. After priming, seeds could be kept in dry storage for long periods (checked up to 20 weeks). Emergence studies confirm the effectiveness of the priming treatment for low-temperature germination of winter-grown watermelon.
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Claims 13
Claim · model-written summary
Watermelon seeds require high temperatures for successful germination.
- Taxon
- Watermelon
Citrullus lanatuse0 - Material
- Sugar Babye0
- Outcome
- germinate successfullye0
- Qualifier
- high temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Watermelon seeds ( Citrullus lanatus (Thunb.) Matsum. & Nakal cv. Sugar Baby) require high temperatures to germinate successfully.”
e1“Watermelon seeds ( Citrullus lanatus (Thunb.) Matsum. & Nakal cv. Sugar Baby) require high temperatures to germinate successfully.”
Claim · model-written summary
Light inhibits germination at 20°C and lower.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- light conditionse0
- Outcome
- germinatione0
- Direction
- inhibitede0
- Qualifier
- 20°C and lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under light conditions germination is inhibited at 20°C and lower”
e1“Under light conditions germination is inhibited at 20°C and lower”
t0“Watermelon Seeds”
Claim · model-written summary
Dark conditions inhibit germination below 15°.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- darke0
- Outcome
- germinatione1
- Direction
- inhibitede1
- Qualifier
- below 15°e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the dark below 15°”
e1“Under light conditions germination is inhibited at 20°C and lower and in the dark below 15°.”
t0“Watermelon Seeds”
Claim · model-written summary
The embryo proper causes light inhibition at 20°.
- Taxon
- WatermelonCitrullus lanatust0
- Organ / stage
- embryo propere0
- Outcome
- light inhibition at 20°e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cause of the light inhibition at 20° lies in the embryo proper.”
e1“The cause of the light inhibition at 20° lies in the embryo proper.”
t0“Watermelon Seeds”
Claim · model-written summary
Imbibition at 0° for up to 10 days caused no apparent seed damage, and seeds germinated after transfer to optimal temperature.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- Imbibition at 0° (up to 10 days)e0
- Outcome
- damage to the seedse0
- Direction
- did not cause any apparente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imbibition at 0° (up to 10 days) did not cause any apparent damage to the seeds, which germinated freely upon transfer to optimal temperature.”
e1“Imbibition at 0° (up to 10 days) did not cause any apparent damage to the seeds, which germinated freely upon transfer to optimal temperature.”
t0“Watermelon Seeds”
Claim · model-written summary
Pretreatment at 30° or 35° primed watermelon for low-temperature germination.
- Taxon
- WatermelonCitrullus lanatuse0
- Treatment
- pretreatment at 30° or 35°e0
- Outcome
- low-temperature germinatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Watermelon seeds could be primed for low-temperature germination by pretreatment at 30° or 35°”
e1“Watermelon seeds could be primed for low-temperature germination by pretreatment at 30° or 35°”
Claim · model-written summary
Imbibing seeds in salt solutions primed them for low-temperature germination.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- imbibing the seeds in salt solutionse0
- Outcome
- low-temperature germinatione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by imbibing the seeds in salt solutions prior to sowing”
e1“Watermelon seeds could be primed for low-temperature germination by pretreatment at 30° or 35° or by imbibing the seeds in salt solutions prior to sowing.”
t0“Watermelon Seeds”
Claim · model-written summary
Inorganic osmoticum was superior to organic osmoticum for priming.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- Inorganic osmoticume0
- Outcome
- superiore0
- Direction
- superiore0
- Comparator
- organic osmoticume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inorganic osmoticum was superior to organic osmoticum.”
e1“Inorganic osmoticum was superior to organic osmoticum.”
t0“Watermelon Seeds”
Claim · model-written summary
Priming efficacy differed among salt solutions.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- different salt solutionse0
- Outcome
- efficacy of the priminge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences in the efficacy of the priming existed among the different salt solutions tested.”
e1“Differences in the efficacy of the priming existed among the different salt solutions tested.”
t0“Watermelon Seeds”
Claim · model-written summary
The best priming treatment was 2% or 3% KNO 3 for 6 days.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- 2% or 3% KNO 3 for 6 dayse0
- Outcome
- best treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best treatment was 2% or 3% KNO 3 for 6 days.”
e1“The best treatment was 2% or 3% KNO 3 for 6 days.”
t0“Watermelon Seeds”
Claim · model-written summary
NH 4 NO 3 , NaNO 3 , Ca(NO 3 ) 2 and KC1 showed similar priming effectiveness.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- NH 4 NO 3 , NaNO 3 , Ca(NO 3 ) 2 and KC1e0
- Outcome
- similar effectivenesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NH 4 NO 3 , NaNO 3 , Ca(NO 3 ) 2 and KC1 had similar effectiveness.”
e1“NH 4 NO 3 , NaNO 3 , Ca(NO 3 ) 2 and KC1 had similar effectiveness.”
t0“Watermelon Seeds”
Claim · model-written summary
Primed seeds remained storable dry for up to 20 weeks.
- Taxon
- WatermelonCitrullus lanatust0
- Outcome
- kept in dry storagee0
- Value
- 20 weekse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After priming, seeds could be kept in dry storage for long periods (checked up to 20 weeks).”
e1“After priming, seeds could be kept in dry storage for long periods (checked up to 20 weeks).”
t0“Watermelon Seeds”
Claim · model-written summary
Emergence studies confirmed priming effectiveness for winter-grown watermelon low-temperature germination.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- priming treatmente0
- Outcome
- low-temperature germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Emergence studies confirm the effectiveness of the priming treatment for low-temperature germination of winter-grown watermelon.”
e1“Emergence studies confirm the effectiveness of the priming treatment for low-temperature germination of winter-grown watermelon.”
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See all 22 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.