Abstract
Growth and yield of chickpea, Cicer arietinum cv. Tyson, were studied at 4 row spacings (180, 360, 530 and 710 mm) and 4 plant population densities (14, 28, 42 and 56 plants m-2) in factorial combination in a wet and a dry growing season on a vertisol at Dalby, south-eastern Queensland. In both years, row spacing had only a small effect on above-ground dry matter production and yield, and there were no significant interactions between row spacing and plant population density. Above-ground dry matter production increased significantly with increase in plant population density for about 120 days after sowing. Seed yield increased significantly from 104 to 126 g m-2 in the drier season (106 mm rain, May-October) with increase in plant population density from 14 to 56 plants m-2. In the wetter season (286 mm rain, May- October), the corresponding trend in yield was from 262 to 287 g m-2. The response was attributed chiefly to larger seed size in the wet year, and higher harvest index in the dry year. We conclude that a density of at least 40 plants m-2 is required to attain maximum seed yield in southeastern Queensland. Although row spacing had no significant effect on yield, our earlier research indicated potential benefits from narrow row spacing, particularly for mechanised crop production.
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Claims 8
Claim · model-written summary
Row spacing had only a small effect on above-ground dry matter production and yield of chickpea.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- row spacinge1
- Outcome
- above-ground dry matter production and yielde1
- Direction
- only a small effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e1“In both years, row spacing had only a small effect on above-ground dry matter production and yield”
Claim · model-written summary
There were no significant interactions between row spacing and plant population density.
- Taxon
- chickpeaCicer arietinumt0
- Outcome
- interactions between row spacing and plant population densitye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e2“there were no significant interactions between row spacing and plant population density”
Claim · model-written summary
Above-ground dry matter production increased significantly with plant population density for about 120 days after sowing.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- plant population densitye3
- Outcome
- Above-ground dry matter productione3
- Direction
- increasede3
- Qualifier
- for about 120 days after sowinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e3“Above-ground dry matter production increased significantly with increase in plant population density for about 120 days after sowing”
Claim · model-written summary
Seed yield increased significantly from 104 to 126 g m-2 with plant density from 14 to 56 plants m-2 in the drier season.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- plant population densitye4
- Outcome
- Seed yielde4
- Direction
- increasede4
- Value
- 104 to 126 g m-2e4
- Setting
- drier season (106 mm rain, May-October)e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e4“Seed yield increased significantly from 104 to 126 g m-2 in the drier season (106 mm rain, May-October) with increase in plant population density from 14 to 56 plants m-2”
Claim · model-written summary
Seed yield trend with plant density in the wetter season rose from 262 to 287 g m-2.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- plant population densitye4
- Outcome
- trend in yielde5
- Direction
- increaseinferrede5
- Value
- 262 to 287 g m-2e5
- Setting
- wetter season (286 mm rain, May- October)e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e4“Seed yield increased significantly from 104 to 126 g m-2 in the drier season (106 mm rain, May-October) with increase in plant population density from 14 to 56 plants m-2”
e5“In the wetter season (286 mm rain, May- October), the corresponding trend in yield was from 262 to 287 g m-2”
Claim · model-written summary
The seed yield response to density was attributed chiefly to larger seed size in the wet year and higher harvest index in the dry year.
- Taxon
- chickpeaCicer arietinumt0
- Outcome
- responsee6
- Qualifier
- larger seed size in the wet year, and higher harvest index in the dry yeare6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e6“The response was attributed chiefly to larger seed size in the wet year, and higher harvest index in the dry year”
Claim · model-written summary
A density of at least 40 plants m-2 is required to attain maximum seed yield of chickpea in southeastern Queensland.
- Taxon
- chickpeaCicer arietinumt0
- Outcome
- density of at least 40 plants m-2e7
- Setting
- southeastern Queenslande7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e7“We conclude that a density of at least 40 plants m-2 is required to attain maximum seed yield in southeastern Queensland”
Claim · model-written summary
Row spacing had no significant effect on chickpea yield.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- row spacinge1
- Outcome
- yielde1
- Direction
- no significant effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea (cv. Tyson)”
e1“Although row spacing had no significant effect on yield”
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
- no effect
- no effect
- positive
67 papers more in this group
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.