Abstract
The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments. Meloidogyne incognita showed higher reproduction than did M. javanica on watermelon and cucurbit rootstocks. The watermelon cultivars did not differ in host status when challenged with these two species and supported lower nematode reproduction than the cucurbit rootstocks. Rootstocks Lagenaria siceraria cv. Pelops and Cucurbita pepo AK 15 supported lower reproduction than did the squash hybrid rootstocks ( C. maxima × C. moschata ). Egg production increased ( P < 0·05) with a rising initial inoculum level ( Pi ) in the non‐grafted Sugar Baby but the reproduction factor Rf (eggs per plant/ Pi ) was similar at two Pi levels. The total egg production in the plants grafted onto squash hybrids RS 841 and Titan was greater ( P < 0·05) at the higher Pi , but the Rf values were lower. The development of field‐grown non‐grafted watermelon plants was significantly stunted in plots where nematodes were detected at planting. However, no differences were observed in plots with grafted plants. In plots with nematodes, non‐grafted and Titan‐grafted plants had similar yields that were higher than that of RS 841‐grafted plants. In the commercial plastic houses with grafted watermelon, the average Rf value was 42‐fold, confirming the high susceptibility of squash hybrids as rootstocks for grafted watermelon. The Titan–Sugar Baby combination was tolerant to M. javanica .
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Claims 16
Claim · model-written summary
Meloidogyne incognita showed higher reproduction than M. javanica on watermelon and cucurbit rootstocks.
- Taxon
- watermelon
Citrullus lanatuse1 - Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae1pathogen - Second interactor
- M. javanicaMeloidogyne javanicae1pathogen
- Outcome
- reproductione1
- Direction
- highere1
- Comparator
- M. javanicae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e1“Meloidogyne incognita showed higher reproduction than did M. javanica on watermelon and cucurbit rootstocks”
Claim · model-written summary
Watermelon cultivars did not differ in host status when challenged with M. incognita and M. javanica.
- Taxon
- watermelonCitrullus lanatuse3
- Material
- watermelon cultivarse3
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae1pathogen
- Second interactor
- M. javanicaMeloidogyne javanicae1pathogen
- Outcome
- host statuse3
- Direction
- did not differe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e3“The watermelon cultivars did not differ in host status when challenged with these two species and supported lower nematode reproduction than the cucurbit rootstocks”
Claim · model-written summary
Watermelon cultivars supported lower nematode reproduction than cucurbit rootstocks.
- Taxon
- watermelonCitrullus lanatuse3
- Material
- watermelon cultivarse3
- Outcome
- nematode reproductione3
- Direction
- lowere3
- Comparator
- cucurbit rootstockse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The watermelon cultivars did not differ in host status when challenged with these two species and supported lower nematode reproduction than the cucurbit rootstocks”
Claim · model-written summary
Lagenaria siceraria cv. Pelops supported lower reproduction than squash hybrid rootstocks.
- Taxon
- Lagenaria siceraria
Lagenaria sicerariae4 - Material
- Pelopse4
- Outcome
- reproductione4
- Direction
- lowere4
- Comparator
- squash hybrid rootstockse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Rootstocks Lagenaria siceraria cv. Pelops and Cucurbita pepo AK 15 supported lower reproduction than did the squash hybrid rootstocks ( C. maxima × C. moschata )”
Claim · model-written summary
Cucurbita pepo AK 15 supported lower reproduction than squash hybrid rootstocks.
- Taxon
- Cucurbita pepo
Cucurbita pepoe4 - Material
- AK 15e4
- Outcome
- reproductione4
- Direction
- lowere4
- Comparator
- squash hybrid rootstockse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Rootstocks Lagenaria siceraria cv. Pelops and Cucurbita pepo AK 15 supported lower reproduction than did the squash hybrid rootstocks ( C. maxima × C. moschata )”
Claim · model-written summary
Egg production increased with a rising initial inoculum level in non-grafted Sugar Baby watermelon.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- Sugar Babye5
- Treatment
- rising initial inoculum levele5
- Outcome
- Egg productione5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e5“Egg production increased ( P < 0·05) with a rising initial inoculum level ( Pi ) in the non‐grafted Sugar Baby”
Claim · model-written summary
The reproduction factor Rf was similar at two Pi levels in non-grafted Sugar Baby watermelon.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- Sugar Babye5
- Treatment
- initial inoculum levele5
- Outcome
- reproduction factor Rf (eggs per plant/ Pi )e6
- Direction
- similare6
- Comparator
- two Pi levelse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e5“Egg production increased ( P < 0·05) with a rising initial inoculum level ( Pi ) in the non‐grafted Sugar Baby”
e6“but the reproduction factor Rf (eggs per plant/ Pi ) was similar at two Pi levels”
Claim · model-written summary
Total egg production was greater at the higher Pi in watermelon grafted onto squash hybrid RS 841.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- RS 841e7
- Treatment
- higher Pie7
- Outcome
- total egg productione7
- Direction
- greatere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e7“The total egg production in the plants grafted onto squash hybrids RS 841 and Titan was greater ( P < 0·05) at the higher Pi , but the Rf values were lower”
Claim · model-written summary
Total egg production was greater at the higher Pi in watermelon grafted onto squash hybrid Titan.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- Titane7
- Treatment
- higher Pie7
- Outcome
- total egg productione7
- Direction
- greatere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e7“The total egg production in the plants grafted onto squash hybrids RS 841 and Titan was greater ( P < 0·05) at the higher Pi , but the Rf values were lower”
Claim · model-written summary
Rf values were lower at the higher Pi in watermelon grafted onto squash hybrid RS 841.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- RS 841e7
- Treatment
- higher Pie7
- Outcome
- Rf valuese7
- Direction
- lowere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e7“The total egg production in the plants grafted onto squash hybrids RS 841 and Titan was greater ( P < 0·05) at the higher Pi , but the Rf values were lower”
Claim · model-written summary
Rf values were lower at the higher Pi in watermelon grafted onto squash hybrid Titan.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- Titane7
- Treatment
- higher Pie7
- Outcome
- Rf valuese7
- Direction
- lowere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e7“The total egg production in the plants grafted onto squash hybrids RS 841 and Titan was greater ( P < 0·05) at the higher Pi , but the Rf values were lower”
Claim · model-written summary
In field plots, non-grafted watermelon development was significantly stunted where nematodes were detected at planting.
- Taxon
- watermelonCitrullus lanatuse2
- Treatment
- nematodes were detected at plantinge2
- Outcome
- developmente2
- Direction
- stuntede2
- Setting
- plotse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e2“The development of field‐grown non‐grafted watermelon plants was significantly stunted in plots where nematodes were detected at planting”
Claim · model-written summary
No differences in watermelon development were observed in plots with grafted plants.
- Taxon
- watermelonCitrullus lanatuse2
- Treatment
- grafted plantse3
- Outcome
- developmente2
- Direction
- no differencese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The development of field‐grown non‐grafted watermelon plants was significantly stunted in plots where nematodes were detected at planting”
e3“However, no differences were observed in plots with grafted plants”
Claim · model-written summary
In plots with nematodes, non-grafted and Titan-grafted plants had similar yields that were higher than RS 841-grafted plants.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- Titane2
- Treatment
- plots with nematodese2
- Outcome
- yieldse2
- Direction
- highere2
- Comparator
- RS 841‐grafted plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e2“In plots with nematodes, non‐grafted and Titan‐grafted plants had similar yields that were higher than that of RS 841‐grafted plants”
Claim · model-written summary
In commercial plastic houses with grafted watermelon, the average Rf value was 42-fold, indicating high susceptibility of squash hybrid rootstocks.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- squash hybridse0
- Outcome
- average Rf valuee0
- Value
- 42‐folde0
- Setting
- commercial plastic housese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the commercial plastic houses with grafted watermelon, the average Rf value was 42‐fold, confirming the high susceptibility of squash hybrids as rootstocks for grafted watermelon”
Claim · model-written summary
The Titan–Sugar Baby combination was tolerant to M. javanica.
- Taxon
- watermelonCitrullus lanatuse1
- Material
- Titan–Sugar Baby combinatione2
- Interactor
- M. javanicaMeloidogyne javanicae2pathogen
- Outcome
- tolerante2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The suitability of watermelon cultivars and cucurbit rootstocks as hosts to Meloidogyne incognita and M. javanica was determined in pot and field experiments”
e2“The Titan–Sugar Baby combination was tolerant to M. javanica”
The same questions in other papers
grafting · growth · Citrullus lanatus (watermelon)Results differ
6 papers in the same direction as this paper · 62 in the opposite direction
- positive
- positive
- positive
65 papers more in this group
See all 69 papers →inoculation · pest · Citrullus lanatus (watermelon)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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.