Abstract
The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae. Recently emerged seminal roots were inoculated with a range of H. avenae larval densities, then transferred a hydroponic system to remove the effect of later nematode penetration on root development. Intolerance to H. avenae was assessed in terms of impairment of seminal root extension resulting in fewer primary lateral roots emerging from the seminal root below the zone of juvenile penetration. Tolerant plants infested with H. avenae had longer lateral root systems than infested intolerant plants. The decline in lateral root growth below the penetration zone was partly offset by increased growth above. This did not contribute to tolerance, however, as there were no differences between cultivars for this feature. Nematodes induced earlier nodal root emergence in all cultivars. Nodal root development was most advanced on the most tolerant cultivar.
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Claims 6
Claim · model-written summary
Tolerant oat plants infested with H. avenae had longer lateral root systems than infested intolerant plants.
- Taxon
- oat
Avena sativae0 - Treatment
- infested with H. avenaee1
- Interactor
- H. avenae
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Heterodera avenaee1pest - Outcome
- lateral root systemse1
- Direction
- longere1
- Comparator
- infested intolerant plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae”
e1“Tolerant plants infested with H. avenae had longer lateral root systems than infested intolerant plants”
Claim · model-written summary
Nematode infestation decreased lateral root growth below the penetration zone.
- Taxon
- oatAvena sativae0
- Treatment
- Heterodera avenae infestatione0
- Interactor
- Heterodera avenaeHeterodera avenaee0pest
- Outcome
- lateral root growth below the penetration zonee2
- Direction
- declinee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae”
e2“The decline in lateral root growth below the penetration zone was partly offset by increased growth above”
Claim · model-written summary
Nematode infestation increased lateral root growth above the penetration zone, partly offsetting the decline below it.
- Taxon
- oatAvena sativae0
- Treatment
- Heterodera avenae infestatione0
- Interactor
- Heterodera avenaeHeterodera avenaee0pest
- Outcome
- growth abovee2
- Direction
- increasede2
- Qualifier
- partly offsete2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae”
e2“The decline in lateral root growth below the penetration zone was partly offset by increased growth above”
Claim · model-written summary
Above-penetration growth did not differ between oat cultivars.
- Taxon
- oatAvena sativae0
- Outcome
- growth abovee2
- Qualifier
- no differences between cultivarse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae”
e2“The decline in lateral root growth below the penetration zone was partly offset by increased growth above”
e5“there were no differences between cultivars for this feature”
Claim · model-written summary
Nematodes induced earlier nodal root emergence in all oat cultivars.
- Taxon
- oatAvena sativae0
- Treatment
- Nematodese3
- Interactor
- Heterodera avenaeHeterodera avenaee0pest
- Outcome
- nodal root emergencee3
- Direction
- earliere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae”
e3“Nematodes induced earlier nodal root emergence in all cultivars”
Claim · model-written summary
Nodal root development was most advanced on the most tolerant oat cultivar.
- Taxon
- oatAvena sativae0
- Material
- most tolerant cultivare4
- Outcome
- Nodal root developmente4
- Direction
- most advancede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of Heterodera avenae infestation on early seminal and lateral root growth was examined in four oat genotypes differing in tolerance to H. avenae”
e4“Nodal root development was most advanced on the most tolerant cultivar”
The same questions in other papers
infection · growth · Avena sativa (oats)Positive and negative results
6 in the opposite direction
- negative
- no effect
- no effect
3 papers more in this group
See all 7 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.