Abstract
Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes were tested at three Central Alberta locations under 18 conditions of seeding management, consisting of six seeding rates (30–180 kg/ha) combined with three seeding dates. Main effects of dates (D), rates (R) and genotypes (G) were significant at one or more locations for grain yield, days to maturity, grain protein percentage and protein yield. Based on the average response of the seven genotypes, early seeding combined with seeding rates of 90 kg/ha or more gave optimum yield with a minimum number of days to maturity. Main effects were not always the same at all locations, implying G × Location interactions. Significant G × R and G × D interactions were recorded for all variables at one or more locations, although their magnitude was not as great as for the main effects. A significant G × R × D effect was also recorded at one or more locations for grain yield, days to maturity and protein yield. Existence of significant G × R, G × D and G × R × D effects suggests that new wheat cultivars, particularly when of novel germplasm type, should be checked for response to variable seeding management at different locations, in order to capitalize on any favorable interactions.
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Claims 8
Claim · model-written summary
Seeding date, rate and genotype had significant main effects on grain yield, maturity, grain protein percentage and protein yield at one or more locations.
- Qualifier
- one or more locationse0
Verbatim
e0“Main effects of dates (D), rates (R) and genotypes (G) were significant at one or more locations for grain yield, days to maturity, grain protein percentage and protein yield”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
Early seeding with at least 90 kg/ha gave optimum yield.
- Taxon
- Triticum aestivum L.
Triticum aestivume0e1 - Treatment
- early seeding combined with seeding rates of 90 kg/ha or moree0
- Direction
- optimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early seeding combined with seeding rates of 90 kg/ha or more gave optimum yield with a minimum number of days to maturity”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
Early seeding with at least 90 kg/ha minimized days to maturity.
- Taxon
- Triticum aestivum L.Triticum aestivume0e1
- Treatment
- early seeding combined with seeding rates of 90 kg/ha or moree0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early seeding combined with seeding rates of 90 kg/ha or more gave optimum yield with a minimum number of days to maturity”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
Main effects varied by location, implying genotype by location interactions.
- Taxon
- Triticum aestivum L.Triticum aestivume0e1
- Direction
- not always the samee0
- Setting
- locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Main effects were not always the same at all locations, implying G × Location interactions”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
Significant genotype by rate and genotype by date interactions occurred for all variables at one or more sites.
- Taxon
- Triticum aestivum L.Triticum aestivume0e1
- Qualifier
- all variables at one or more locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant G × R and G × D interactions were recorded for all variables at one or more locations”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
Genotype by rate and genotype by date interactions were smaller than main effects.
- Taxon
- Triticum aestivum L.Triticum aestivume0e1
- Direction
- not as greate0
- Comparator
- main effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their magnitude was not as great as for the main effects”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
A significant genotype by rate by date interaction occurred for grain yield, maturity and protein yield at one or more sites.
- Taxon
- Triticum aestivum L.Triticum aestivume0e1
- Qualifier
- grain yield, days to maturity and protein yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant G × R × D effect was also recorded at one or more locations for grain yield, days to maturity and protein yield”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
Claim · model-written summary
New cultivars should be checked for responses to seeding management across locations.
- Taxon
- wheatTriticum aestivume0e1
- Qualifier
- particularly when of novel germplasm typee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“new wheat cultivars, particularly when of novel germplasm type, should be checked for response to variable seeding management at different locations”
e1“Five Canada Utility and two Canada Western Red Spring Wheat (Triticum aestivum L.) genotypes”
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