Abstract
Root-knot nematodes (Meloidogyne spp.) are thought to reduce growth and yield of banana in the subtropics and that in vitro-propagated plants are more intolerant than those established conventionally from sucker or corm pieces. This paper describes a field trial in subtropical Queensland, Australia, on a site which was naturally infested with spiral nematode (Helicotylenchus dihystera) and inoculated with M. javanica, but where there were no Radopholus similis, Pratylenchus goodeyi or P. coffeae. It compared the effects of M. javanica and H. dihystera on in vitro-propagated and conventionally-grown plants. Inoculation with M. javanica did not affect any parameter of plant growth or yield in the plant crop of either planting type or in the first ratoon of in vitro-propagated plants. However, in the first ratoon crop of plants established as suckers, inoculation with M. javanica reduced numbers of fingers and hands per bunch but did not affect bunch weight. There was no correlation between plant growth or yield and numbers of M. javanica in either planting type in either plant or first ratoon crop, with 0-43 736 M. javanica/100 g root and 0-7940/200 g soil. H. dihystera populations in roots (0-420/100 g) were negatively correlated with growth and yield of the first ratoon of plants established as suckers but positively correlated with growth and yield of plants established as in vitro-propagated plants.
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Claims 7
Claim · model-written summary
Inoculation with M. javanica did not affect plant growth or yield of banana in the plant crop of either planting type.
- Taxon
- bananat0
- Treatment
- Inoculation with M. javanicae1
- Interactor
- M. javanicaMeloidogyne javanicae1pest
- Outcome
- any parameter of plant growth or yielde1
- Direction
- did not affecte1
- Qualifier
- in the plant crop of either planting typee1
Not reportedComparator
Verbatim
t0“did not affect banana production”
e1“Inoculation with M. javanica did not affect any parameter of plant growth or yield in the plant crop of either planting type or in the first ratoon of in vitro-propagated plants”
Claim · model-written summary
Inoculation with M. javanica did not affect plant growth or yield of in vitro-propagated banana in the first ratoon.
- Taxon
- bananat0
- Treatment
- Inoculation with M. javanicae1
- Interactor
- M. javanicaMeloidogyne javanicae1pest
- Outcome
- any parameter of plant growth or yielde1
- Direction
- did not affecte1
- Qualifier
- in the first ratoon of in vitro-propagated plantse1
Not reportedComparator
Verbatim
t0“did not affect banana production”
e1“Inoculation with M. javanica did not affect any parameter of plant growth or yield in the plant crop of either planting type or in the first ratoon of in vitro-propagated plants”
Claim · model-written summary
Inoculation with M. javanica reduced the numbers of fingers and hands per bunch of suckers in the first ratoon crop of banana.
- Taxon
- bananat0
- Treatment
- inoculation with M. javanicae2
- Interactor
- M. javanicaMeloidogyne javanicae2pest
- Outcome
- numbers of fingers and hands per bunche2
- Direction
- reducede2
- Qualifier
- first ratoon crop of plants established as suckerse2
Not reportedComparator
Verbatim
t0“did not affect banana production”
e2“in the first ratoon crop of plants established as suckers, inoculation with M. javanica reduced numbers of fingers and hands per bunch but did not affect bunch weight”
Claim · model-written summary
Inoculation with M. javanica did not affect bunch weight of banana in the first ratoon crop of suckers.
- Taxon
- bananat0
- Treatment
- inoculation with M. javanicae2
- Interactor
- M. javanicaMeloidogyne javanicae2pest
- Outcome
- bunch weighte2
- Direction
- did not affecte2
- Qualifier
- first ratoon crop of plants established as suckerse2
Not reportedComparator
Verbatim
t0“did not affect banana production”
e2“in the first ratoon crop of plants established as suckers, inoculation with M. javanica reduced numbers of fingers and hands per bunch but did not affect bunch weight”
Claim · model-written summary
Numbers of M. javanica showed no correlation with banana plant growth or yield.
- Taxon
- bananat0
- Interactor
- M. javanicaMeloidogyne javanicae3pest
- Outcome
- plant growth or yielde3
- Direction
- no correlatione3
Verbatim
t0“did not affect banana production”
e3“There was no correlation between plant growth or yield and numbers of M. javanica in either planting type in either plant or first ratoon crop”
Claim · model-written summary
H. dihystera populations in banana roots were negatively correlated with growth and yield of the first ratoon of suckers.
- Taxon
- bananat0
- Interactor
- H. dihystera
Helicotylenchus dihysterae4pest - Outcome
- growth and yielde4
- Direction
- negatively correlatede4
- Qualifier
- first ratoon of plants established as suckerse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“did not affect banana production”
e4“H. dihystera populations in roots (0-420/100 g) were negatively correlated with growth and yield of the first ratoon of plants established as suckers but positively correlated with growth and yield of plants established as in vitro-propagated plants”
Claim · model-written summary
H. dihystera populations in banana roots were positively correlated with growth and yield of in vitro-propagated plants.
- Taxon
- bananat0
- Interactor
- H. dihysteraHelicotylenchus dihysterae4pest
- Outcome
- growth and yielde4
- Direction
- positively correlatede4
- Qualifier
- plants established as in vitro-propagated plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“did not affect banana production”
e4“H. dihystera populations in roots (0-420/100 g) were negatively correlated with growth and yield of the first ratoon of plants established as suckers but positively correlated with growth and yield of plants established as in vitro-propagated plants”
The same questions in other papers
inoculation · yield · MusaPositive and negative results
1 paper in the same direction as this paper · 26 in the opposite direction
- positive
- positive
- positive
24 papers more in this group
See all 28 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.