Abstract
Field trials to assess the impact of chickpea type (desi vs. kabuli), row spacing and seeding rate on ascochyta blight of chickpea were conducted over 2 yr at Brooks, Alberta. A compound-leaved desi chickpea cultivar and unifoliate kabuli cultivar were sown at 20, 30 and 40 cm row spacing, and at three seeding rates (20, 40 and 60 seeds per 3 m row). Most of the variation in disease severity was associated with differences between the cultivars. Seeding rate, row spacing and their interactions had substantially smaller effects on ascochyta blight in comparison with cultivar effects. Late in the growing season, blight severity was consistently lower in the desi than the kabuli cultivar. Wide row spacing and low seeding rate reduced ascochyta blight severity and increased seed yield per plant. Wide row spacing in the first year reduced the seed yield per hectare, but row spacing did not significantly affect yield in 2005. Low in-row seeding rates increased yield only in 2004. There was a positive linear relationship between plant density and blight severity, and a negative relationship between yield per plant and both plant density and disease severity. We conclude that reduced plant population density could be one tool in a program to manage ascochyta blight of chickpea. Key words: Cicer arietinum, plant population density, ascochyta blight, yield
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Claims 10
Claim · model-written summary
Variation in ascochyta blight severity was mostly associated with differences between chickpea cultivars.
- Taxon
- chickpea
Cicer arietinumt0 - Material
- cultivarse1
- Outcome
- disease severitye1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e1“Most of the variation in disease severity was associated with differences between the cultivars”
Claim · model-written summary
Late in the season, blight severity was lower in desi chickpea than in kabuli chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Material
- desie2
- Outcome
- blight severitye2
- Direction
- lowere2
- Qualifier
- Late in the growing seasone2
- Comparator
- kabuli cultivare2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e2“Late in the growing season, blight severity was consistently lower in the desi than the kabuli cultivar”
Claim · model-written summary
Wide row spacing and low seeding rate reduced ascochyta blight severity in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Wide row spacing and low seeding ratee3
- Outcome
- ascochyta blight severitye3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e3“Wide row spacing and low seeding rate reduced ascochyta blight severity and increased seed yield per plant”
Claim · model-written summary
Wide row spacing and low seeding rate increased seed yield per plant in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Wide row spacing and low seeding ratee3
- Outcome
- seed yield per plante3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e3“Wide row spacing and low seeding rate reduced ascochyta blight severity and increased seed yield per plant”
Claim · model-written summary
Wide row spacing in the first year reduced seed yield per hectare in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Wide row spacinge4
- Outcome
- seed yield per hectaree4
- Direction
- reducede4
- Qualifier
- in the first yeare4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e4“Wide row spacing in the first year reduced the seed yield per hectare, but row spacing did not significantly affect yield in 2005”
Claim · model-written summary
Row spacing did not significantly affect chickpea yield in 2005.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- row spacinge4
- Outcome
- yielde4
- Direction
- did not significantly affecte4
- Qualifier
- in 2005e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e4“Wide row spacing in the first year reduced the seed yield per hectare, but row spacing did not significantly affect yield in 2005”
Claim · model-written summary
Low in-row seeding rates increased chickpea yield only in 2004.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Low in-row seeding ratese5
- Outcome
- yielde5
- Direction
- increasede5
- Qualifier
- only in 2004e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e5“Low in-row seeding rates increased yield only in 2004”
Claim · model-written summary
Plant density had a positive linear relationship with ascochyta blight severity in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- plant densitye6
- Outcome
- blight severitye6
- Direction
- positive lineare6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e6“There was a positive linear relationship between plant density and blight severity, and a negative relationship between yield per plant and both plant density and disease severity”
Claim · model-written summary
Yield per plant had a negative relationship with plant density and with disease severity in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- plant densitye6
- Outcome
- yield per plante6
- Direction
- negativee6
- Qualifier
- and disease severitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“yield of chickpea”
e6“There was a positive linear relationship between plant density and blight severity, and a negative relationship between yield per plant and both plant density and disease severity”
Claim · model-written summary
Reduced plant population density could be one tool to manage ascochyta blight of chickpea.
- Taxon
- chickpeaCicer arietinume7
- Outcome
- manage ascochyta blighte7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“We conclude that reduced plant population density could be one tool in a program to manage ascochyta blight of chickpea”
The same questions in other papers
density · yield · Cicer arietinum (chickpea)Positive and negative results
63 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- no effect
67 papers more in this group
See all 71 papers →density · disease · Cicer arietinum (chickpea)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.