Abstract
Removal of all mature leaf laminae of rice cv. Pelita I/2 5 wks after transplanting had no effect on yield, plant height or panicle wt., but continuous defoliation from 3 wks after transplanting to flag-leaf emergence significantly reduced yields, the total wt. of panicles/plant decreasing from 28.7 g to 16.1 g at 75% defoliation. Ear wt. was not significantly reduced by removal of laminae from maize cv. BC1 3 wks after sowing, but complete defoliation at 3 and 6 wks reduced grain yield from 151 to 33 g/plant. Only 100% defoliation of sorghum cv. STB 458 at 5 and 10 wks after sowing reduced seed yield/panicle significantly. The effect of removing each emerging leaf of soyabean cv. Taichung, Sumbing and No.945 was significant, 50% defoliation of No.945 reducing seed yield/plant from 12.0 to 3.1 g. Daily defoliation of groundnut cv. Gajah from emergence to blooming and from blooming to harvest significantly reduced wt. and number of pods and seeds but not average seed wt. It is suggested that the effects of severe foliage losses caused by leaf-feeding insects may have relatively little effect on crop yields and that yield losses caused by some pests may not justify chemical control
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Claims 11
Claim · model-written summary
Removal of mature rice leaves five weeks after transplanting had no effect on yield, height or panicle weight.
- Taxon
- rice
Oryza sativae0 - Material
- Pelita I/2e0
- Organ / stage
- 5 wks after transplantinge0
- Treatment
- Removal of all mature leaf laminaee0
- Outcome
- yield, plant height or panicle wt.e0
- Direction
- had no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of all mature leaf laminae of rice cv. Pelita I/2 5 wks after transplanting had no effect on yield, plant height or panicle wt.”
Claim · model-written summary
Continuous rice defoliation significantly reduced panicle yield from 28.7 to 16.1 g at 75% defoliation.
- Taxon
- riceOryza sativat0
- Treatment
- 75% defoliatione0
- Outcome
- total wt. of panicles/plante0
- Direction
- decreasinge0
- Value
- 16.1 ge0
- Qualifier
- from 28.7 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“continuous defoliation from 3 wks after transplanting to flag-leaf emergence significantly reduced yields, the total wt. of panicles/plant decreasing from 28.7 g to 16.1 g at 75% defoliation”
t0“rice”
Claim · model-written summary
Removing maize leaf laminae three weeks after sowing did not significantly reduce ear weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ear wt. was not significantly reduced by removal of laminae from maize cv. BC1 3 wks after sowing”
Claim · model-written summary
Complete maize defoliation at three and six weeks reduced grain yield from 151 to 33 g per plant.
- Treatment
- complete defoliation at 3 and 6 wkse0
- Outcome
- grain yielde0
- Direction
- reducede0
- Value
- 33 g/plante0
- Qualifier
- from 151e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“complete defoliation at 3 and 6 wks reduced grain yield from 151 to 33 g/plant”
t0“maize”
Claim · model-written summary
Only complete sorghum defoliation at five and ten weeks significantly reduced seed yield per panicle.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only 100% defoliation of sorghum cv. STB 458 at 5 and 10 wks after sowing reduced seed yield/panicle significantly”
Claim · model-written summary
Removing each emerging soybean leaf had a significant effect.
Not reportedComparatorDirection
Verbatim
e0“The effect of removing each emerging leaf of soyabean cv. Taichung, Sumbing and No.945 was significant”
Claim · model-written summary
Half defoliation of soybean No.945 reduced seed yield per plant from 12.0 to 3.1 g.
- Taxon
- soybean
Glycine maxt0 - Material
- No.945e0
- Treatment
- 50% defoliatione0
- Outcome
- seed yield/plante0
- Direction
- reducinge0
- Value
- 3.1 ge0
- Qualifier
- from 12.0e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% defoliation of No.945 reducing seed yield/plant from 12.0 to 3.1 g”
t0“soybean”
Claim · model-written summary
Daily defoliation significantly reduced groundnut pod and seed weight and number.
- Taxon
- groundnut
Arachis hypogaeae0 - Material
- Gajahe0
- Treatment
- Daily defoliatione0
- Outcome
- wt. and number of pods and seedse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Daily defoliation of groundnut cv. Gajah from emergence to blooming and from blooming to harvest significantly reduced wt. and number of pods and seeds”
Claim · model-written summary
Daily defoliation did not significantly reduce average groundnut seed weight.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- Daily defoliatione1
- Outcome
- average seed wt.e0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly reduced wt. and number of pods and seeds but not average seed wt.”
e1“Daily defoliation of groundnut cv. Gajah from emergence to blooming and from blooming to harvest significantly reduced wt. and number of pods and seeds”
t0“groundnut”
Claim · model-written summary
The authors suggest severe insect foliage loss may have relatively little effect on crop yields.
- Taxon
- rice, maize, sorghum, groundnut and soybeanArachis hypogaeaGlycine maxOryza sativa
Sorghum
Zea mayst0 - Interactor
- leaf-feeding insectse0pest
- Outcome
- relatively little effect on crop yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of severe foliage losses caused by leaf-feeding insects may have relatively little effect on crop yields”
t0“rice, maize, sorghum, groundnut and soybean”
Claim · model-written summary
The authors suggest some pest-related yield losses may not justify chemical control.
- Taxon
- rice, maize, sorghum, groundnut and soybeanArachis hypogaeaGlycine maxOryza sativaSorghumZea mayst0
- Interactor
- pestse0pest
- Outcome
- may not justify chemical controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield losses caused by some pests may not justify chemical control”
t0“rice, maize, sorghum, groundnut and soybean”
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See all 174 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.