Abstract
Chickpea (Cicer arietinum L.) has two kinds of leaf types, the fern and unifoliate. The best leaf type to use for biomass production and yield in the short growing season of the Northern Great Plains, which has a semiarid environment with end of season rainfall, is not yet known. The objectives of this research were to determine the relationships between leaf type and crop growth rate, maximum above-ground biomass, harvest index and yield under moderate and high plant population densities. The study was conducted in the field at Saskatoon and Swift Current, Saskatchewan, in 2003 and 2004. The experimental treatments consisted of a factorial combination of six commercial kabuli chickpea cultivars representing the two leaf types and two plant population densities: 45 and 85 plants m -2 . There were no cultivar and plant population interactions for crop growth rate, maximum above-ground biomass, harvest index and seed yield. Dry matter production was higher in the 2004 season, which had above-average rainfall and a longer duration of reproductive growth. Although high plant population exhibited higher maximum above-ground biomass in 3 location-years, plant population did not affect the crop growth rate. The 45 plants m -2 treatment had a higher harvest index than the 85 plants m -2 treatment in 2 location-years, but both population treatments were similar in the other two environments. Yield of chickpea was increased by higher plant population in 1 location-year, but was not affected by plant population in the other location-years. The fern leaf cultivars had a higher crop growth rate over the unifoliate leaf cultivars in 2 location-years and no significant difference in the other environment. Fern-leaf cultivars partitioned more dry matter to seed growth compared with unifoliate cultivars while sustaining similar biomass production as unifoliate cultivars. The use of fern-leaf cultivars in the Northern Great Plains appears to be an opportunity for increasing chickpea yield by its superior harvest index compared with unifoliate leaf cultivars. Key words: Cicer arietinum, fern leaf, unifoliate, plant population, seed yield
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Claims 13
Claim · model-written summary
Cultivar and plant density did not interact for crop growth rate, biomass, harvest index, or seed yield.
- Taxon
- Chickpea (Cicer arietinum L.)
Cicer arietinumt0 - Outcome
- no cultivar and plant population interactions for crop growth rate, maximum above-ground biomass, harvest index and seed yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no cultivar and plant population interactions for crop growth rate, maximum above-ground biomass, harvest index and seed yield.”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
Dry matter production was higher in the wetter 2004 season.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Outcome
- Dry matter productione0
- Direction
- highere0
- Setting
- 2004 seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter production was higher in the 2004 season, which had above-average rainfall and a longer duration of reproductive growth.”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
High population increased maximum above-ground biomass in three location-years.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Treatment
- high plant populatione0
- Outcome
- maximum above-ground biomasse0
- Direction
- highere0
- Qualifier
- 3 location-yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high plant population exhibited higher maximum above-ground biomass in 3 location-years”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
Population density did not affect crop growth rate.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Treatment
- plant populatione0
- Outcome
- crop growth ratee0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant population did not affect the crop growth rate”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
The lower density had higher harvest index in two location-years.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Treatment
- 45 plants m -2 treatmente0
- Outcome
- harvest indexe0
- Direction
- highere0
- Qualifier
- 2 location-yearse0
- Comparator
- 85 plants m -2 treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 45 plants m -2 treatment had a higher harvest index than the 85 plants m -2 treatment in 2 location-years”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
Harvest index was similar between densities in the other two environments.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Treatment
- both population treatmentse0
- Outcome
- harvest indext1
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both population treatments were similar in the other two environments”
t0“Chickpea (Cicer arietinum L.)”
t1“higher harvest index than the 85 plants m -2 treatment”
Claim · model-written summary
Higher population increased yield in one location-year.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- higher plant populatione0
- Outcome
- Yielde0
- Direction
- increasede0
- Qualifier
- 1 location-yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield of chickpea was increased by higher plant population in 1 location-year”
Claim · model-written summary
Population density did not affect yield in the remaining location-years.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- plant populatione0
- Outcome
- Yieldt1
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was not affected by plant population in the other location-years”
t0“Chickpea (Cicer arietinum L.)”
t1“Yield of chickpea”
Claim · model-written summary
Fern leaf cultivars had higher crop growth rate in two location-years.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Material
- fern leaf cultivarse0
- Outcome
- crop growth ratee0
- Direction
- highere0
- Qualifier
- 2 location-yearse0
- Comparator
- unifoliate leaf cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fern leaf cultivars had a higher crop growth rate over the unifoliate leaf cultivars in 2 location-years”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
Leaf types did not differ significantly in crop growth rate in the other environment.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Outcome
- crop growth ratet1
- Direction
- no significant differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference in the other environment”
t0“Chickpea (Cicer arietinum L.)”
t1“higher crop growth rate over the unifoliate leaf cultivars”
Claim · model-written summary
Fern leaf cultivars partitioned more dry matter to seed than unifoliate cultivars.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Material
- Fern-leaf cultivarse0
- Outcome
- dry matter to seed growthe0
- Direction
- moree0
- Comparator
- unifoliate cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fern-leaf cultivars partitioned more dry matter to seed growth compared with unifoliate cultivars”
t0“Chickpea (Cicer arietinum L.)”
Claim · model-written summary
Fern leaf cultivars sustained similar biomass to unifoliate cultivars.
- Taxon
- Chickpea (Cicer arietinum L.)Cicer arietinumt0
- Material
- fern-leaf cultivarst1
- Outcome
- biomass productione0
- Direction
- similare0
- Comparator
- unifoliate cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sustaining similar biomass production as unifoliate cultivars”
t0“Chickpea (Cicer arietinum L.)”
t1“Fern-leaf cultivars”
Claim · model-written summary
The authors suggest fern leaf cultivars may increase chickpea yield in the Northern Great Plains because of superior harvest index.
- Taxon
- chickpeaCicer arietinume0
- Outcome
- use of fern-leaf cultivars in the Northern Great Plainse0
- Direction
- increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of fern-leaf cultivars in the Northern Great Plains appears to be an opportunity for increasing chickpea yield by its superior harvest index compared with unifoliate leaf cultivars.”
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See all 71 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.