Abstract
The germinability, vigour, and desiccation tolerance of muskmelon (Cucumis melo L. cv. Top Mark) seeds was studied in relation to changes in seed water content during development within the fleshy fruit. Seed water content (fresh weight basis) declined from 91% to 42% between 10 d and 35 d after anthesis (DAA) (when maximum dry weight was attained), then declined more slowly to a minimum of 35% at 50 DAA before increasing again to 43% at 65 DAA. Fresh intact seeds were first germinable at 25 to 30 DAA and attained maximum germination percentages at 45 DAA. Between 15 and 35 DAA, cotyledons, hypocotyls, radicles and epicotyls of isolated embryos (testa and perisperm envelope removed) sequentially developed the ability to grow when incubated on water. Dehydration to water contents less that those attained within the fleshy fruit is not a requirement for development of germination capacity of muskmelon seeds. Seeds became tolerant of rapid desiccation after 25 DAA, and drying of immature seeds (25 to 40 DAA) increased their germination percentages upon subsequent imbibition. Washing, drying, or washing followed by drying increased seedling vigour (root length) as compared to fresh seeds, which had very poor vigour. Water absorption isotherms were constructed to test whether changes in water-binding components were correlated with the development of desiccation tolerance. Isotherms for seeds older than 25 DAA fit well to the D'Arcy/Watt model, which postulates the existence of high-affinity, low-affinity and multi-molecular water-binding sites. Desiccation-intolerant seeds younger than 25 DAA lacked the component of the absorption isotherm characteristic of the high-affinity water-binding sites which have been hypothesized to confer desiccation tolerance. However, we were unable to determine whether the absence of high-affinity binding characteristics was specifically related to desiccation intolerance or was artifactual due to the loss of volatiles when immature seed samples were dried at high temperatures.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 14
Claim · model-written summary
Muskmelon seed water content fell from 91% to 42% between 10 and 35 days after anthesis.
- Taxon
- muskmelon
.jpg?width=60)
Cucumis meloe0 - Material
- cv. Top Marke0
- Organ / stage
- seedse0
- Outcome
- Seed water content (fresh weight basis)e1
- Direction
- declinede1
- Value
- 91% to 42%e1
- Qualifier
- between 10 d and 35 d after anthesis (DAA)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Seed water content (fresh weight basis) declined from 91% to 42% between 10 d and 35 d after anthesis (DAA)”
Claim · model-written summary
Seed water content reached a minimum of 35% at 50 DAA.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“then declined more slowly to a minimum of 35% at 50 DAA”
Claim · model-written summary
Seed water content rose again to 43% at 65 DAA.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- seedse0
- Direction
- increasinge1
- Value
- 43%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“before increasing again to 43% at 65 DAA”
Claim · model-written summary
Fresh intact seeds first became germinable at 25 to 30 DAA.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- first germinablee1
- Value
- 25 to 30 DAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Fresh intact seeds were first germinable at 25 to 30 DAA”
Claim · model-written summary
Seed germination percentage reached its maximum at 45 DAA.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- germination percentagese1
- Direction
- maximume1
- Value
- 45 DAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“attained maximum germination percentages at 45 DAA”
Claim · model-written summary
Embryo organs sequentially developed growth capacity on water between 15 and 35 DAA.
- Taxon
- muskmelonCucumis meloe0
- Organ / stage
- cotyledons, hypocotyls, radicles and epicotyls of isolated embryose1
- Outcome
- sequentially developed the ability to grow when incubated on watere1
- Qualifier
- Between 15 and 35 DAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Between 15 and 35 DAA, cotyledons, hypocotyls, radicles and epicotyls of isolated embryos (testa and perisperm envelope removed) sequentially developed the ability to grow when incubated on water.”
Claim · model-written summary
Dehydration below fruit water content was not required for muskmelon seed germination capacity.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- development of germination capacitye0
- Qualifier
- Dehydration to water contents less that those attained within the fleshy fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dehydration to water contents less that those attained within the fleshy fruit is not a requirement for development of germination capacity of muskmelon seeds.”
Claim · model-written summary
Seeds became tolerant of rapid desiccation after 25 DAA.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- tolerant of rapid desiccatione1
- Qualifier
- after 25 DAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Seeds became tolerant of rapid desiccation after 25 DAA”
Claim · model-written summary
Drying immature seeds increased subsequent germination percentage.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- drying of immature seeds (25 to 40 DAA)e1
- Outcome
- germination percentagese1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“drying of immature seeds (25 to 40 DAA) increased their germination percentages upon subsequent imbibition”
Claim · model-written summary
Washing increased seedling root length versus fresh seeds.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- Washinge1
- Outcome
- seedling vigour (root length)e1
- Direction
- increasede1
- Comparator
- fresh seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Washing, drying, or washing followed by drying increased seedling vigour (root length) as compared to fresh seeds”
Claim · model-written summary
Drying increased seedling root length versus fresh seeds.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- dryinge1
- Outcome
- seedling vigour (root length)e1
- Direction
- increasede1
- Comparator
- fresh seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Washing, drying, or washing followed by drying increased seedling vigour (root length) as compared to fresh seeds”
Claim · model-written summary
Washing followed by drying increased seedling root length versus fresh seeds.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- washing followed by dryinge1
- Outcome
- seedling vigour (root length)e1
- Direction
- increasede1
- Comparator
- fresh seedse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Washing, drying, or washing followed by drying increased seedling vigour (root length) as compared to fresh seeds”
Claim · model-written summary
Water absorption isotherms for seeds older than 25 DAA fit the D’Arcy/Watt model well.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- fit welle1
- Comparator
- D'Arcy/Watt modele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Isotherms for seeds older than 25 DAA fit well to the D'Arcy/Watt model”
Claim · model-written summary
Desiccation-intolerant seeds younger than 25 DAA lacked a high-affinity water-binding isotherm component.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- lacked the component of the absorption isotherm characteristic of the high-affinity water-binding sitese1
- Qualifier
- younger than 25 DAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“muskmelon (Cucumis melo L. cv. Top Mark) seeds”
e1“Desiccation-intolerant seeds younger than 25 DAA lacked the component of the absorption isotherm characteristic of the high-affinity water-binding sites”
The same questions in other papers
processing · growth · Cucumis melo (muskmelon)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
4 papers more in this group
See all 8 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.