Abstract
SUMMARY In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed either at the vegetative stage, the onset of flowering, or at the rapid pod-filling stage, in order to evaluate the effect of reduced assimilatory capacity on the growth and yield characteristics of the crop. Reduction in the assimilatory capacity of the plant led to significant reduction in the vegetative growth, dry-matter accumulation and seed yield of the defoliated plants compared with the undefoliated control such that 33, 67 or 100% defoliation led to 15–55, 40–60 and 75–80% reduction in seed yield respectively, at both trials. Also, defoliation was more damaging to crop performance if carried out from the onset of flowering than at the vegetative stage. Thus, the seed yields of plants defoliated at the onset of flowering and the rapid pod-filling stage were 30–80 and 40–45 % lower than the yield from plants defoliated at the vegetative stage in both trials.
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Claims 7
Claim · model-written summary
Reduced assimilatory capacity significantly reduced vegetative growth, dry-matter accumulation and seed yield compared with undefoliated controls.
- Taxon
- pigeon pea
Cajanus cajant0 - Material
- Cita-1e0
- Treatment
- Reduction in the assimilatory capacitye1
- Outcome
- vegetative growth, dry-matter accumulation and seed yielde1
- Direction
- significant reductione1
- Comparator
- undefoliated controle1
- Setting
- field trials in 1980e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e1“Reduction in the assimilatory capacity of the plant led to significant reduction in the vegetative growth, dry-matter accumulation and seed yield of the defoliated plants compared with the undefoliated control”
Claim · model-written summary
33% defoliation reduced seed yield by 15-55%.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Cita-1e0
- Treatment
- 33, 67 or 100% defoliatione2
- Outcome
- seed yielde2
- Direction
- reductione2
- Value
- 15–55e2
- Setting
- field trials in 1980e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e2“33, 67 or 100% defoliation led to 15–55, 40–60 and 75–80% reduction in seed yield respectively”
Claim · model-written summary
67% defoliation reduced seed yield by 40-60%.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Cita-1e0
- Treatment
- 33, 67 or 100% defoliatione2
- Outcome
- seed yielde2
- Direction
- reductione2
- Value
- 40–60e2
- Setting
- field trials in 1980e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e2“33, 67 or 100% defoliation led to 15–55, 40–60 and 75–80% reduction in seed yield respectively”
Claim · model-written summary
100% defoliation reduced seed yield by 75-80%.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Cita-1e0
- Treatment
- 33, 67 or 100% defoliatione2
- Outcome
- seed yielde2
- Direction
- reductione2
- Value
- 75–80e2
- Setting
- field trials in 1980e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e2“33, 67 or 100% defoliation led to 15–55, 40–60 and 75–80% reduction in seed yield respectively”
Claim · model-written summary
Defoliation at the onset of flowering was more damaging to crop performance than defoliation at the vegetative stage.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Cita-1e0
- Treatment
- defoliatione3
- Outcome
- crop performancee3
- Direction
- more damaginge3
- Qualifier
- from the onset of floweringe3
- Comparator
- vegetative stagee3
- Setting
- field trials in 1980e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e3“defoliation was more damaging to crop performance if carried out from the onset of flowering than at the vegetative stage”
Claim · model-written summary
Seed yield of plants defoliated at the onset of flowering was 30-80% lower than that of plants defoliated at the vegetative stage.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Cita-1e0
- Treatment
- plants defoliated at the onset of floweringe4
- Outcome
- seed yieldse4
- Direction
- lowere4
- Value
- 30–80e4
- Comparator
- plants defoliated at the vegetative stagee4
- Setting
- field trials in 1980e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e4“the seed yields of plants defoliated at the onset of flowering and the rapid pod-filling stage were 30–80 and 40–45 % lower than the yield from plants defoliated at the vegetative stage in both trials”
Claim · model-written summary
Seed yield of plants defoliated at the rapid pod-filling stage was 40-45% lower than that of plants defoliated at the vegetative stage.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Cita-1e0
- Treatment
- the rapid pod-filling stagee4
- Outcome
- seed yieldse4
- Direction
- lowere4
- Value
- 40–45e4
- Comparator
- plants defoliated at the vegetative stagee4
- Setting
- field trials in 1980e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeon pea (Cajanus cajan (L.) Millsp.)”
e0“In two field trials in 1980, 33, 67 or 100% of the leaves on pigeon pea (cv. Cita-1) plants were removed”
e4“the seed yields of plants defoliated at the onset of flowering and the rapid pod-filling stage were 30–80 and 40–45 % lower than the yield from plants defoliated at the vegetative stage in both trials”
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See all 22 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.