Paper · 1975 · Journal of the American Society for Horticultural Science

Inheritance and Morphological Traits of a Double Recessive Dwarf in Watermelon, Citrullus lanatus (Thunb.) Mansf.1

H. C. Mohr; M. S. Sandhu

7
claims
13
verbatim quotes
12
citations
3
research areas
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Open access · cc-by-nc-nd

Abstract

Abstract When 2 mutant dwarf watermelons were crossed, the F 1 was of normal vine type, indicating that these genes for dwarfness were non-allelic. The F 2 segregated 9:3:3:1, with the double recessive a plant form hitherto unreported. The designated genotype of this digenic recessive dwarf is dw 1 dw 1 dw 2 dw 2 . It has much shorter internodes than either parent, the crown branching characteristic of 1 parent and the naked bud characteristic of the other, and it was later in maturity than either parent. Breeding lines derived from double recessive plants show promise of horticultural value as cultivars for the home garden and intensive commercial culture with the possibility of a mechanized harvest.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

The two watermelon dwarf genes were non-allelic.

Taxon
watermelonsCitrullus lanatuse0
Gene
genes for dwarfnesse0
Outcome
non-allelice0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“When 2 mutant dwarf watermelons were crossed, the F 1 was of normal vine type, indicating that these genes for dwarfness were non-allelic.”

✓ located verbatim in the source · abstract, characters 9–147 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The F2 segregated 9:3:3:1 and included a previously unreported double recessive form.

Taxon
WatermelonCitrullus lanatust0
Outcome
segregated 9:3:3:1e0
Value
9:3:3:1e0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The F 2 segregated 9:3:3:1, with the double recessive a plant form hitherto unreported.”

✓ located verbatim in the source · abstract, characters 148–235 · show in text ↑
t0

“Watermelon”

✓ located verbatim in the source · title, characters 68–78 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The double recessive dwarf was designated dw 1 dw 1 dw 2 dw 2.

Taxon
WatermelonCitrullus lanatust0
Gene
dw 1 dw 1 dw 2 dw 2e0
Outcome
digenic recessive dwarfe0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The designated genotype of this digenic recessive dwarf is dw 1 dw 1 dw 2 dw 2 .”

✓ located verbatim in the source · abstract, characters 236–316 · show in text ↑
t0

“Watermelon”

✓ located verbatim in the source · title, characters 68–78 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The double dwarf had shorter internodes than either parent.

Taxon
WatermelonCitrullus lanatust0
Outcome
internodese0
Direction
much shortere0
Comparator
either parente0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“It has much shorter internodes than either parent”

✓ located verbatim in the source · abstract, characters 317–366 · show in text ↑
t0

“Watermelon”

✓ located verbatim in the source · title, characters 68–78 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The double dwarf combined crown branching and naked bud traits from its parents.

Taxon
WatermelonCitrullus lanatust0
Outcome
crown branching characteristic of 1 parent and the naked bud characteristic of the othere0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the crown branching characteristic of 1 parent and the naked bud characteristic of the other”

✓ located verbatim in the source · abstract, characters 368–460 · show in text ↑
t0

“Watermelon”

✓ located verbatim in the source · title, characters 68–78 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The double dwarf matured later than either parent.

Taxon
WatermelonCitrullus lanatust0
Outcome
maturitye0
Direction
latere0
Comparator
either parente0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“it was later in maturity than either parent.”

✓ located verbatim in the source · abstract, characters 466–510 · show in text ↑
t0

“Watermelon”

✓ located verbatim in the source · title, characters 68–78 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Double recessive breeding lines showed promise for home gardens and intensive commercial culture.

Taxon
WatermelonCitrullus lanatust0
Outcome
promise of horticultural value as cultivarse0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Breeding lines derived from double recessive plants show promise of horticultural value as cultivars for the home garden and intensive commercial culture with the possibility of a mechanized harvest.”

✓ located verbatim in the source · abstract, characters 511–710 · show in text ↑
t0

“Watermelon”

✓ located verbatim in the source · title, characters 68–78 · show in text ↑