Abstract
Field trials were conducted to determine if crop rotation would suppress soil populations of Pratylenchus thornei and eliminate the use of nematicde plots when assessing chickpea cultivars for tolerance. Assessing yield response to P. thornei is difficult due to problems associated with nematicide penetration in the sub-soil. In year one, plot treatments consisted of canola, linseed, canaryseed, wheat and bare fallow, applied with or without aldicarb at 10kg/hectare in a three randomized block design. The following year the same plots were recropped with four chickpea cultivars and one intolerant wheat cultivar and aldicarb re-applied to the nematicide plots. Results from the pre-crops revealed wheat produced significantly higher nematode numbers throughout the soil profile than the other treatments. P. thornei populations peaked at depths of 45-60cm but nematicide was only effective down to depths of 30cm. Canola and fallow resulted in significantly lower populations of mycorrhizal spores than wheat. Canaryseed resulted in low nematode numbers in contrast to wheat and high mycorrhizal spores comparable to wheat so it was selected as the best control treatment for future use. All pre-crop treatments had similar moisture down to depths of 60cm. Chickpea yields on pre-cropped canary plots increased by 10-30% compared to yields on pre-cropped wheat plots. Nematicide on canary plots gave no additional yield of the following chickpea. Results demonstrated that using resistant canary and susceptible wheat plots is an effective alternative to plus nematicide and minus nematicide treatments when assessing tolerance in chickpea cultivars. This methodology has been successfully implemented in subsequent trials.
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Claims 11
Claim · model-written summary
Wheat as pre-crop produced significantly higher nematode numbers throughout the soil profile than the other pre-crop treatments.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- wheate0
- Interactor
- Pratylenchus thorneiPratylenchus thorneit0pest
- Outcome
- nematode numbers throughout the soil profilee0
- Direction
- significantly highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e0“Results from the pre-crops revealed wheat produced significantly higher nematode numbers throughout the soil profile than the other treatments”
Claim · model-written summary
Canaryseed as pre-crop gave low nematode numbers in contrast to wheat.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Canaryseede1
- Interactor
- Pratylenchus thorneiPratylenchus thorneit0pest
- Outcome
- nematode numberse1
- Direction
- lowe1
- Comparator
- wheate1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e1“Canaryseed resulted in low nematode numbers in contrast to wheat”
Claim · model-written summary
Canola and fallow as pre-crops gave significantly lower populations of mycorrhizal spores than wheat.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Canola and fallowe2
- Interactor
- mycorrhizale2symbiont
- Outcome
- populations of mycorrhizal sporese2
- Direction
- significantly lowere2
- Comparator
- wheate2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e2“Canola and fallow resulted in significantly lower populations of mycorrhizal spores than wheat”
Claim · model-written summary
Canaryseed gave mycorrhizal spore numbers comparable to wheat.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Canaryseede6
- Interactor
- mycorrhizale3symbiont
- Outcome
- mycorrhizal sporese3
- Direction
- comparablee3
- Comparator
- wheate3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e3“high mycorrhizal spores comparable to wheat”
e6“Canaryseed resulted in low nematode numbers in contrast to wheat and high mycorrhizal spores comparable to wheat so it was selected as the best control treatment for future use”
Claim · model-written summary
All pre-crop treatments had similar soil moisture down to 60 cm depth.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- pre-crop treatmentse4
- Outcome
- moisturee4
- Direction
- similare4
- Qualifier
- down to depths of 60cme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e4“All pre-crop treatments had similar moisture down to depths of 60cm”
Claim · model-written summary
Pratylenchus thornei populations peaked at depths of 45-60 cm.
- Taxon
- chickpeaCicer arietinumt0
- Interactor
- P. thorneiPratylenchus thorneie5pest
- Outcome
- P. thornei populationse5
- Value
- 45-60cme5
- Qualifier
- peaked at depths of 45-60cme5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e5“P. thornei populations peaked at depths of 45-60cm but nematicide was only effective down to depths of 30cm”
Claim · model-written summary
The nematicide was effective only down to 30 cm depth.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- nematicidee5
- Interactor
- P. thorneiPratylenchus thorneie5pest
- Outcome
- effectivee5
- Qualifier
- only effective down to depths of 30cme5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e5“P. thornei populations peaked at depths of 45-60cm but nematicide was only effective down to depths of 30cm”
Claim · model-written summary
Chickpea yields after canaryseed pre-crop increased by 10-30% compared with yields after wheat.
- Taxon
- chickpeaCicer arietinume7
- Treatment
- pre-cropped canary plotse7
- Outcome
- Chickpea yieldse7
- Direction
- increasede7
- Value
- 10-30%e7
- Comparator
- pre-cropped wheat plotse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e7“Chickpea yields on pre-cropped canary plots increased by 10-30% compared to yields on pre-cropped wheat plots”
Claim · model-written summary
Nematicide on canary plots gave no additional yield of the following chickpea.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- Nematicidee1
- Outcome
- yield of the following chickpeae1
- Direction
- no additionale1
- Comparator
- canary plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e1“Nematicide on canary plots gave no additional yield of the following chickpea”
Claim · model-written summary
Resistant canary and susceptible wheat plots are an effective alternative to plus- and minus-nematicide plots for assessing chickpea tolerance.
- Taxon
- chickpeaCicer arietinume2
- Interactor
- Pratylenchus thorneiPratylenchus thorneit0pest
- Outcome
- assessing tolerance in chickpea cultivarse2
- Comparator
- plus nematicide and minus nematicide treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e2“Results demonstrated that using resistant canary and susceptible wheat plots is an effective alternative to plus nematicide and minus nematicide treatments when assessing tolerance in chickpea cultivars”
Claim · model-written summary
Canaryseed was selected as the best control treatment for future use.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Canaryseede6
- Outcome
- best control treatment for future usee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea varietal tolerance to Pratylenchus thornei”
e6“Canaryseed resulted in low nematode numbers in contrast to wheat and high mycorrhizal spores comparable to wheat so it was selected as the best control treatment for future use”
The same questions in other papers
insecticide · yield · Cicer arietinum (chickpea)Positive and negative results
1 paper in the same direction as this paper · 10 reporting no difference from an alternative
- positive
- positive
- positive
8 papers more in this group
See all 12 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.