Abstract
The pigeonpea (Cajanus cajan) is grown between the 45oN and 45oS as a summer food legume, and consumed by billions of people in the world. Recent renewed interest from Australian growers prompted the current study to evaluate high-yielding varieties and develop agronomic parameters for this crop. Performance of four selected pigeonpea genotypes were assessed under three row spacing (25, 50 and 100 cm) treatments and at one plant density (30 plants/m2) in two diverse Australian environments (Kingaroy and Gatton) in Queensland. Decreasing row spacing from 100cm to 25cm led to a linear increase in mean shoot dry matter (DM) at both sites. However, maximum grain yields of up to 2.9 t/ha were achieved at 50cm row spacing but the yields declined at 25cm spacing at both sites. Genotypic variation for radiation use efficiency (RUE) measured at Gatton site ranged from 1.40 to 1.76 g/MJ, which accounted for 76% of variation in DM. There was a significant effect of site and genotype on grain N and 100-seed mass. The study demonstrated that pigeonpea could be grown as a legume break crop in subtropical Australia, with potential export market opportunities.
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Claims 8
Claim · model-written summary
Reducing row spacing from 100cm to 25cm linearly increased shoot dry matter at both sites.
- Taxon
- Pigeonpea
Cajanus cajant0 - Treatment
- 25cme0
- Outcome
- mean shoot dry matter (DM)e0
- Direction
- increasee0
- Comparator
- 100cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decreasing row spacing from 100cm to 25cm led to a linear increase in mean shoot dry matter (DM) at both sites.”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Grain yield peaked at 50cm row spacing, reaching 2.9 t/ha.
- Taxon
- PigeonpeaCajanus cajant0
- Treatment
- 50cm row spacinge0
- Outcome
- grain yieldse0
- Direction
- maximume0
- Value
- 2.9 t/hae0
- Comparator
- 25cm spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum grain yields of up to 2.9 t/ha were achieved at 50cm row spacing but the yields declined at 25cm spacing at both sites.”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Grain yield declined at 25cm spacing at both sites relative to 50cm.
- Taxon
- PigeonpeaCajanus cajant0
- Treatment
- 25cm spacinge0
- Outcome
- yieldse0
- Direction
- declinede0
- Comparator
- 50cm row spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum grain yields of up to 2.9 t/ha were achieved at 50cm row spacing but the yields declined at 25cm spacing at both sites.”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Genotypic radiation use efficiency at Gatton ranged from 1.40 to 1.76 g/MJ.
- Taxon
- PigeonpeaCajanus cajant0
- Outcome
- radiation use efficiency (RUE)e0
- Value
- 1.40 to 1.76 g/MJe0
- Setting
- Gattone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypic variation for radiation use efficiency (RUE) measured at Gatton site ranged from 1.40 to 1.76 g/MJ”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Radiation use efficiency accounted for 76% of dry matter variation.
- Taxon
- PigeonpeaCajanus cajant0
- Outcome
- variation in DMe0
- Value
- 76%e0
- Setting
- Gattone0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypic variation for radiation use efficiency (RUE) measured at Gatton site ranged from 1.40 to 1.76 g/MJ, which accounted for 76% of variation in DM.”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Site and genotype significantly affected grain nitrogen.
- Taxon
- PigeonpeaCajanus cajant0
- Material
- genotypee0
- Outcome
- grain Ne0
- Setting
- sitee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant effect of site and genotype on grain N and 100-seed mass.”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Site and genotype significantly affected 100-seed mass.
- Taxon
- PigeonpeaCajanus cajant0
- Material
- genotypee0
- Outcome
- 100-seed masse0
- Setting
- sitee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant effect of site and genotype on grain N and 100-seed mass.”
t0“Pigeonpea (Cajanus cajan)”
Claim · model-written summary
Authors concluded pigeonpea could serve as a subtropical Australian break crop.
- Taxon
- pigeonpeaCajanus cajane0
- Outcome
- grown as a legume break crope0
- Setting
- subtropical Australiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study demonstrated that pigeonpea could be grown as a legume break crop in subtropical Australia”
The same questions in other papers
density · yield · Cajanus cajan (pigeon pea)Positive and negative results
48 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- no effect
48 papers more in this group
See all 52 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.