Abstract
The objective of this study was to determine the effect of water stress on phenology and identify drought resistance mechanism in bread wheat and also to find out the most crucial stage of growth with respect to water stress in wheat variety. The experimental materials consisted of and two bread wheat varieties (Star 11 TR 77173/SLM and Kauz/Weaver). Water stress was imposed at three critical growth stages by withholding water at (tillering, flowering, grain filling stages, there was also the control with no water stress treatments. The experiment was laid out in a split plot design with three replications. Water stress was allocated to the main plot, while variety was assigned to the sub plot. The research was conducted during the 2009/10 and 2010/11 dry seasons at the Usmanu Danfodiyo University, teaching and research Fadama farm, Sokoto in the Sudan Savanna ecological zone of Nigeria (latitude 130011N; longitude 50151E and at an altitude of about 350 m above sea level). Water stress at tillering resulted in significant (P<0.05) reduction in days to 50% booting, heading and anthesis, Water stress at grain filling resulted to significant reduction in grain filling duration and such limitation caused the canopy to senesce prematurely, The variety Star II TR 77173/ SLM had shorter days to booting, heading and anthesis than Kauz/Weaver. Star II TR 77173/ SLM was better than Kauz/Weaver in its ability to complete its growth period and mature before the drought stress appeared to exert its limiting effect. The phonological stages of booting, heading, flowering and maturity were all influenced by water stress/drought. Star II TR 77173/ SLM is recommended to this area and other areas with similar climate due to its superiority over Kauz/Weaver through its ability to complete its growth period and mature before the drought stress appears to exert its limiting effect. Key words: Water stress; variety; bread wheat; phenology; Sudan savannah
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Claims 7
Claim · model-written summary
Water stress at tillering significantly shortened time to 50% booting, heading and anthesis.
- Taxon
- Bread Wheat
Triticum aestivumt0 - Treatment
- Water stress at tilleringe0
- Outcome
- days to 50% booting, heading and anthesise0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress at tillering resulted in significant (P<0.05) reduction in days to 50% booting, heading and anthesis”
t0“Bread Wheat”
Claim · model-written summary
Water stress at grain filling significantly shortened grain filling duration.
Not reportedTaxonComparator
Verbatim
e0“Water stress at grain filling resulted to significant reduction in grain filling duration”
Claim · model-written summary
Water stress at grain filling caused premature canopy senescence.
Not reportedTaxonComparator
Verbatim
e0“such limitation caused the canopy to senesce prematurely”
Claim · model-written summary
Star II TR 77173/ SLM reached booting, heading and anthesis sooner than Kauz/Weaver.
- Material
- Star II TR 77173/ SLMe0
- Outcome
- days to booting, heading and anthesise0
- Direction
- shortere0
- Comparator
- Kauz/Weavere0
Not reportedTaxon
Verbatim
e0“The variety Star II TR 77173/ SLM had shorter days to booting, heading and anthesis than Kauz/Weaver.”
Claim · model-written summary
Star II TR 77173/ SLM was better able than Kauz/Weaver to mature before drought became limiting.
- Material
- Star II TR 77173/ SLMe0
- Outcome
- ability to complete its growth period and mature before the drought stress appeared to exert its limiting effecte0
- Direction
- bettere0
- Comparator
- Kauz/Weavere0
Not reportedTaxon
Verbatim
e0“Star II TR 77173/ SLM was better than Kauz/Weaver in its ability to complete its growth period and mature before the drought stress appeared to exert its limiting effect.”
Claim · model-written summary
Water stress influenced booting, heading, flowering and maturity.
- Treatment
- water stress/droughte0
- Outcome
- phonological stages of booting, heading, flowering and maturitye0
Not reportedTaxon
Verbatim
e0“The phonological stages of booting, heading, flowering and maturity were all influenced by water stress/drought.”
Claim · model-written summary
The authors recommend Star II TR 77173/ SLM for this and climatically similar areas.
- Material
- Star II TR 77173/ SLMe0
- Outcome
- recommended to this area and other areas with similar climatee0
- Comparator
- Kauz/Weavere0
Not reportedTaxon
Verbatim
e0“Star II TR 77173/ SLM is recommended to this area and other areas with similar climate due to its superiority over Kauz/Weaver”
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See all 17 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.