Abstract
SUMMARY Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet but this loss was compensated by increased grain yield of the tillers. The potential extent of compensation in grain yield components by tillers was investigated by removing the main shoot at panicle initiation (PI) and flowering stages respectively, for both irrigated and water-stressed plants. Grain yield loss by removal of the main shoot of plants at PI was fully compensated by tiller grain yield in both the irrigated and water-stressed plants. The compensation was, however, only partial when the main shoot was removed at flowering. The compensation for the grain yield loss in the main shoot due to either water stress or removal was through an increase in number of grains on the tillers. This increase was due to an increase in the number of productive tillers in the case of water stress and to both an increase in the number of productive tillers and an increase in the number of grains per panicle in the case of main shoot removal. This compensatory mechanism by tillers plays an important role in overcoming the effects of pre-flowering water stress damage to the main shoot.
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Claims 8
Claim · model-written summary
Water deficit during panicle development reduced grain yield of the pearl millet main shoot panicle.
- Taxon
- pearl millet
Cenchrus americanuse1 - Treatment
- Water deficit during the panicle development stagee1
- Outcome
- grain yield of the main shoot paniclee1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
Claim · model-written summary
Tiller grain yield increased and compensated for the grain yield loss of the main shoot under water deficit.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- Water deficit during the panicle development stagee1
- Outcome
- grain yield of the tillerse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e2“this loss was compensated by increased grain yield of the tillers”
Claim · model-written summary
Removing the main shoot at panicle initiation was fully compensated by tiller grain yield in irrigated and water-stressed pearl millet.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- removal of the main shoot of plants at PIe3
- Outcome
- Grain yield losse3
- Direction
- fully compensatede3
- Comparator
- irrigatede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e3“Grain yield loss by removal of the main shoot of plants at PI was fully compensated by tiller grain yield in both the irrigated and water-stressed plants”
Claim · model-written summary
Compensation for the main shoot grain yield loss was only partial when the main shoot was removed at flowering.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- the main shoot was removed at floweringe4
- Outcome
- compensatione4
- Direction
- only partiale4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e4“The compensation was, however, only partial when the main shoot was removed at flowering”
Claim · model-written summary
Tiller compensation for main shoot grain yield loss, caused by water stress or removal, operated through more grains on the tillers.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- water stress or removale5
- Outcome
- compensation for the grain yield loss in the main shoote5
- Qualifier
- through an increase in number of grains on the tillerse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e5“The compensation for the grain yield loss in the main shoot due to either water stress or removal was through an increase in number of grains on the tillers”
Claim · model-written summary
Under water stress, the number of productive tillers increased, explaining tiller compensation.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- water stresse6
- Outcome
- number of productive tillerse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e6“This increase was due to an increase in the number of productive tillers in the case of water stress”
Claim · model-written summary
With main shoot removal, both productive tillers and grains per panicle increased on the tillers.
- Taxon
- pearl milletCenchrus americanuse1
- Treatment
- main shoot removale7
- Outcome
- number of productive tillers and an increase in the number of grains per paniclee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e7“both an increase in the number of productive tillers and an increase in the number of grains per panicle in the case of main shoot removal”
Claim · model-written summary
The tiller compensatory mechanism plays an important role in overcoming pre-flowering water stress damage to the main shoot.
- Taxon
- pearl milletCenchrus americanuse1
- Outcome
- overcoming the effects of pre-flowering water stress damage to the main shoote2
- Qualifier
- This compensatory mechanism by tillerse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet”
e2“This compensatory mechanism by tillers plays an important role in overcoming the effects of pre-flowering water stress damage to the main shoot”
The same questions in other papers
drought · yield · Cenchrus americanus (pearl millet)Positive and negative results
6 papers in the same direction as this paper · 17 in the opposite direction
- no effect
- negative
- negative
20 papers more in this group
See all 24 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.