Abstract
Root necrosis was assessed at different distances from the corm for six different Musa genotypes and the effect of planting material as well as plant developmental stage on the occurrence of root necrosis, investigated. Radopholus similis and Helicotylenchus spp. were of predominant importance in root destruction as their population densities were significantly related to the root necrosis index. A gradual decrease in percentage root necrosis with increasing distance from the corm was observed for both mother plants and tallest suckers. Hardly any root necrosis was observed beyond 60 cm from the corm for roots of both mother plants and tallest suckers. Severity of root necrosis was influenced by genotype and type of planting material. 'Yangambi km5' did not develop excessive root necrosis. However, relatively high overall nematode population densities were evident in sword sucker-derived 'Yangambi km5', which may indicate tolerance to nematode infection. By contrast plantains had a high percentage root necrosis despite moderate nematode population densities, indicating a high sensitivity of these genotypes. Similar root necrosis percentages were observed for both in vitro and sucker-derived plants of 'Yangambi km5', although nematode numbers were considerably higher for the sucker-derived plants. This may indicate a higher sensitivity to nematodes in the in vitro-derived plants compared to the sucker-derived plants.
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Claims 10
Claim · model-written summary
Root necrosis percentage of Musa decreased gradually with increasing distance from the corm for mother plants and tallest suckers.
- Organ / stage
- both mother plants and tallest suckerse2
- Outcome
- percentage root necrosise2
- Direction
- gradual decreasee2
- Qualifier
- with increasing distance from the corme2
MusaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e2“A gradual decrease in percentage root necrosis with increasing distance from the corm was observed for both mother plants and tallest suckers”
Claim · model-written summary
Population density of Radopholus similis was significantly related to the root necrosis index of Musa.
- Interactor
- Radopholus similis
Radopholus similise1pathogen - Outcome
- root necrosis indexe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e1“Radopholus similis and Helicotylenchus spp. were of predominant importance in root destruction as their population densities were significantly related to the root necrosis index”
Claim · model-written summary
Population density of Helicotylenchus spp. was significantly related to the root necrosis index of Musa.
- Interactor
- Helicotylenchus spp.
Helicotylenchuse1pathogen - Outcome
- root necrosis indexe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e1“Radopholus similis and Helicotylenchus spp. were of predominant importance in root destruction as their population densities were significantly related to the root necrosis index”
Claim · model-written summary
Severity of root necrosis of Musa was influenced by genotype and type of planting material.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e4“Severity of root necrosis was influenced by genotype and type of planting material”
Claim · model-written summary
Musa 'Yangambi km5' did not develop excessive root necrosis.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e5“'Yangambi km5' did not develop excessive root necrosis”
Claim · model-written summary
Overall nematode population densities were relatively high in sword sucker-derived 'Yangambi km5', which may indicate tolerance to nematode infection.
- Material
- sword sucker-derived 'Yangambi km5'e6
- Outcome
- overall nematode population densitiese6
- Qualifier
- may indicate tolerance to nematode infectione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e6“relatively high overall nematode population densities were evident in sword sucker-derived 'Yangambi km5', which may indicate tolerance to nematode infection”
Claim · model-written summary
Plantains had a high percentage of root necrosis despite moderate nematode population densities.
- Taxon
- plantainsMusa ABB Groupe7
- Outcome
- percentage root necrosise7
- Direction
- highe7
- Qualifier
- despite moderate nematode population densitiese7
Verbatim
e7“plantains had a high percentage root necrosis despite moderate nematode population densities”
Claim · model-written summary
Root necrosis percentages of in vitro and sucker-derived plants of Musa 'Yangambi km5' were similar.
- Material
- 'Yangambi km5'e7
- Treatment
- in vitroe7
- Outcome
- root necrosis percentagese7
- Direction
- Similare7
- Comparator
- sucker-derived plantse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e7“Similar root necrosis percentages were observed for both in vitro and sucker-derived plants of 'Yangambi km5', although nematode numbers were considerably higher for the sucker-derived plants”
Claim · model-written summary
Nematode numbers were considerably higher on sucker-derived plants of Musa 'Yangambi km5' than on in vitro-derived plants.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e7“Similar root necrosis percentages were observed for both in vitro and sucker-derived plants of 'Yangambi km5', although nematode numbers were considerably higher for the sucker-derived plants”
Claim · model-written summary
Hardly any root necrosis of Musa was observed beyond 60 cm from the corm.
- Organ / stage
- roots of both mother plants and tallest suckerse3
- Outcome
- root necrosise3
- Qualifier
- beyond 60 cm from the corme3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for six different Musa genotypes”
e3“Hardly any root necrosis was observed beyond 60 cm from the corm for roots of both mother plants and tallest suckers”
The same questions in other papers
in vitro · disease · MusaPositive and negative results
3 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- 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.