Abstract
Chickpea (Cicer arietinum L.), an annual legume, has recently been introduced to western Canada, and is being rapidly adopted in the semiarid prairies, but little information exists on the crop establishment and agronomic management. A field study was conducted from 1998 to 2000 in southwestern Saskatchewan to determine effect of planting dates on seedling emergence, pod development, and seed yields for two market classes of chickpea (i.e., small- and large-seeded) compared to dry pea (Pisum sativum L.). The early-planted chickpea required 8 more days to emerge than late-planted chickpea. Averaged over the two planting dates, small-seeded chickpea required 103 heat units (base 5°C) to emerge compared to 110 for large-seeded chickpea and 97 for dry pea. Compared to the respective late-planting, the reproductive period (flowering to maturity) was 4 d longer for the early-planted chickpea, allowing the plants to use 49 (or 9%) more accumulated heat units. Consequently, the early-planted chickpea produced 17% more fertile pods per plant than the late-planted chickpea. Seed yields averaged 2.17 t ha -1 for small-seeded chickpea, 1.88 t ha -1 for large-seeded chickpea, and 3.54 t ha -1 for dry pea. With early planting, chickpea increased seed yields by 7.5% in 1998, 14% in 1999, and 18.5% in 2000, and dry pea increased seed yield by 37% in 1998, 9% in 1999, and 14% in 2000. The small-seeded chickpea had 53% more fertile pods per plant, and produced 15% higher seed yield than large-seeded chickpea. Seed yields of both chickpea and dry pea in a semiarid environment can be enhanced by management practices that promote early seedling emergence, prolonged reproductive period, and increased pod fertility. Key words: Seeding date, fertile pods, seed size, Cicer arietinum, Pisum sativum
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Claims 18
Claim · model-written summary
Early-planted chickpea took 8 more days to emerge than late-planted chickpea.
- Taxon
- chickpea
Cicer arietinume0 - Treatment
- early-plantede0
- Outcome
- days to emergee0
- Direction
- moree0
- Value
- 8 more dayse0
- Comparator
- late-planted chickpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The early-planted chickpea required 8 more days to emerge than late-planted chickpea”
Claim · model-written summary
Small-seeded chickpea required 103 heat units to emerge.
- Taxon
- chickpeaCicer arietinume0
- Material
- small-seeded chickpeae0
- Outcome
- heat units (base 5°C) to emergee0
- Value
- 103 heat unitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“small-seeded chickpea required 103 heat units (base 5°C) to emerge”
Claim · model-written summary
Large-seeded chickpea required 110 heat units to emerge.
- Taxon
- chickpeaCicer arietinume0
- Material
- large-seeded chickpeae0
- Outcome
- heat units (base 5°C) to emergee1
- Value
- 110e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“110 for large-seeded chickpea”
e1“Averaged over the two planting dates, small-seeded chickpea required 103 heat units (base 5°C) to emerge compared to 110 for large-seeded chickpea and 97 for dry pea”
Claim · model-written summary
Dry pea required 97 heat units to emerge.
Verbatim
e0“97 for dry pea”
e1“Averaged over the two planting dates, small-seeded chickpea required 103 heat units (base 5°C) to emerge compared to 110 for large-seeded chickpea and 97 for dry pea”
Claim · model-written summary
Early planting prolonged chickpea flowering to maturity by 4 days.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- early-plantede0
- Outcome
- reproductive period (flowering to maturity)e0
- Direction
- longere0
- Value
- 4 de0
- Comparator
- late-plantinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the reproductive period (flowering to maturity) was 4 d longer for the early-planted chickpea”
e1“Compared to the respective late-planting, the reproductive period (flowering to maturity) was 4 d longer for the early-planted chickpea, allowing the plants to use 49 (or 9%) more accumulated heat units”
e2“late-planting”
Claim · model-written summary
Early-planted chickpea used 49 more accumulated heat units.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- early-plantede1
- Outcome
- accumulated heat unitse0
- Direction
- moree0
- Value
- 49 (or 9%)e0
- Comparator
- late-plantinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“allowing the plants to use 49 (or 9%) more accumulated heat units”
e1“for the early-planted chickpea, allowing the plants to use 49”
e2“late-planting”
Claim · model-written summary
Early-planted chickpea produced 17% more fertile pods per plant.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- early-plantede0
- Outcome
- fertile pods per plante0
- Direction
- moree0
- Value
- 17%e0
- Comparator
- late-planted chickpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the early-planted chickpea produced 17% more fertile pods per plant than the late-planted chickpea”
Claim · model-written summary
Small-seeded chickpea yielded 2.17 t ha -1 on average.
- Taxon
- chickpeaCicer arietinume0
- Material
- small-seeded chickpeae0
- Outcome
- Seed yieldse0
- Value
- 2.17 t ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yields averaged 2.17 t ha -1 for small-seeded chickpea”
Claim · model-written summary
Large-seeded chickpea yielded 1.88 t ha -1 on average.
- Taxon
- chickpeaCicer arietinume0
- Material
- large-seeded chickpeae0
- Outcome
- Seed yieldse1
- Value
- 1.88 t ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.88 t ha -1 for large-seeded chickpea”
e1“Seed yields averaged 2.17 t ha -1 for small-seeded chickpea, 1.88 t ha -1 for large-seeded chickpea, and 3.54 t ha -1 for dry pea”
Claim · model-written summary
Dry pea yielded 3.54 t ha -1 on average.
Verbatim
e0“3.54 t ha -1 for dry pea”
e1“Seed yields averaged 2.17 t ha -1 for small-seeded chickpea, 1.88 t ha -1 for large-seeded chickpea, and 3.54 t ha -1 for dry pea”
Claim · model-written summary
Early planting increased chickpea seed yield by 7.5% in 1998.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- early plantinge0
- Outcome
- seed yieldse0
- Direction
- increasede0
- Value
- 7.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With early planting, chickpea increased seed yields by 7.5% in 1998”
e1“With early planting”
Claim · model-written summary
Early planting increased chickpea seed yield by 14% in 1999.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- early plantinge1
- Outcome
- seed yieldse0
- Direction
- increasede0
- Value
- 14%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chickpea increased seed yields by 7.5% in 1998, 14% in 1999”
e1“With early planting”
Claim · model-written summary
Early planting increased chickpea seed yield by 18.5% in 2000.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- early plantinge1
- Outcome
- seed yieldse0
- Direction
- increasede0
- Value
- 18.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chickpea increased seed yields by 7.5% in 1998, 14% in 1999, and 18.5% in 2000”
e1“With early planting”
Claim · model-written summary
Early planting increased dry pea seed yield by 37% in 1998.
Not reportedComparator
Verbatim
e0“dry pea increased seed yield by 37% in 1998”
e1“With early planting”
Claim · model-written summary
Early planting increased dry pea seed yield by 9% in 1999.
Not reportedComparator
Verbatim
e0“dry pea increased seed yield by 37% in 1998, 9% in 1999”
e1“With early planting”
Claim · model-written summary
Early planting increased dry pea seed yield by 14% in 2000.
Not reportedComparator
Verbatim
e0“dry pea increased seed yield by 37% in 1998, 9% in 1999, and 14% in 2000”
e1“With early planting”
Claim · model-written summary
Small-seeded chickpea had 53% more fertile pods than large-seeded chickpea.
- Taxon
- chickpeaCicer arietinume0
- Material
- small-seeded chickpeae0
- Outcome
- fertile pods per plante0
- Direction
- moree0
- Value
- 53%e0
- Comparator
- large-seeded chickpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The small-seeded chickpea had 53% more fertile pods per plant, and produced 15% higher seed yield than large-seeded chickpea”
Claim · model-written summary
Small-seeded chickpea yielded 15% more than large-seeded chickpea.
- Taxon
- chickpeaCicer arietinume0
- Material
- small-seeded chickpeae0
- Outcome
- seed yielde0
- Direction
- highere0
- Value
- 15%e0
- Comparator
- large-seeded chickpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The small-seeded chickpea had 53% more fertile pods per plant, and produced 15% higher seed yield than large-seeded chickpea”
The same questions in other papers
sowing time · phenology · Cicer arietinum (chickpea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
sowing time · yield · Cicer arietinum (chickpea)Positive and negative results
67 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- negative
- positive
- positive
81 papers more in this group
See all 85 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.