Abstract
This study was conducted at Setif Agricultural Experimental Station in 2017−2018 crop season, the experimental material used in this study consisted of 5 cultivars (Triticum durum Desf.) based on their difference between early and late cultivation. The genotypes tested were sowing in in a random block design with three replications, each plot consisted of 2 rows of 2.5 m long spaced of 20 cm. The aim of this study is to assess the impact of the choice of sowing date on grain yield, these components as well as some morpho-phenological traits in order to have an idea on the best sowing date. Two-way analysis of variance showed that the effect of sowing date was significant (p<0.001−0.05) with the variables above ground biomass (BIO), spike weight (SW), Thousand kernels weight (TKW), Flag leaf area (LA), plant height (PH), number of days to heading (DH) and canopy temperature (CT), this effect caused the decrease of major parameters studied and mainly grain yield (GY), accompanied by decrease of BIO, SW, TKW, relative Water contents RWC, LA, PH and DH. Ofanto is shown to be the most suitable genotype for the late sowing date (January). The correlation analysis show that GY was significantly, strongly and positively correlated (p<0.001) under both sowing date with BIO and SW. CT was negatively correlated with GY, BIO, SW and HI (p<0.05) who suggest that our plants underwent water stress during the second sowing date.
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Claims 10
Claim · model-written summary
Sowing date significantly affected biomass, spike weight and thousand-kernel weight.
- Taxon
- Durum Wheat
Triticum turgidum subsp. durumt0 - Treatment
- sowing datee0
- Outcome
- above ground biomass (BIO), spike weight (SW), Thousand kernels weight (TKW)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of sowing date was significant (p<0.001−0.05) with the variables above ground biomass (BIO), spike weight (SW), Thousand kernels weight (TKW), Flag leaf area (LA), plant height (PH), number of days to heading (DH) and canopy temperature (CT)”
t0“Durum Wheat”
Claim · model-written summary
Sowing date significantly affected flag leaf area, height and heading days.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- sowing datee1
- Outcome
- Flag leaf area (LA), plant height (PH), number of days to heading (DH)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flag leaf area (LA), plant height (PH), number of days to heading (DH) and canopy temperature (CT)”
t0“Durum Wheat”
e1“the effect of sowing date was significant (p<0.001−0.05)”
Claim · model-written summary
Sowing date significantly affected canopy temperature.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- sowing datee1
- Outcome
- canopy temperature (CT)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“canopy temperature (CT)”
e1“the effect of sowing date was significant (p<0.001−0.05)”
t0“Durum Wheat”
Claim · model-written summary
The sowing-date effect decreased grain yield, biomass and spike weight.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- sowing datee1
- Outcome
- grain yield (GY)e0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this effect caused the decrease of major parameters studied and mainly grain yield (GY), accompanied by decrease of BIO, SW, TKW, relative Water contents RWC, LA, PH and DH.”
e1“effect of sowing date was significant (p<0.001−0.05)”
t0“Durum Wheat”
Claim · model-written summary
Biomass, spike weight and thousand-kernel weight decreased.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Outcome
- BIO, SW, TKWe0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease of BIO, SW, TKW, relative Water contents RWC, LA, PH and DH.”
t0“Durum Wheat”
Claim · model-written summary
Relative water content declined.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Outcome
- relative Water contents RWCe0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease of BIO, SW, TKW, relative Water contents RWC, LA, PH and DH.”
t0“Durum Wheat”
Claim · model-written summary
Leaf area, height and heading days decreased.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Outcome
- LA, PH and DHe0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease of BIO, SW, TKW, relative Water contents RWC, LA, PH and DH.”
t0“Durum Wheat”
Claim · model-written summary
Ofanto was the most suitable genotype for January sowing.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Material
- Ofantoe0
- Outcome
- most suitable genotypee0
- Qualifier
- late sowing date (January)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ofanto is shown to be the most suitable genotype for the late sowing date (January).”
t0“Durum Wheat”
Claim · model-written summary
Grain yield correlated strongly and positively with biomass and spike weight at both sowing dates.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Treatment
- both sowing datee0
- Outcome
- GYe0
- Direction
- positively correlatede0
- Qualifier
- BIO and SWe0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GY was significantly, strongly and positively correlated (p<0.001) under both sowing date with BIO and SW.”
t0“Durum Wheat”
Claim · model-written summary
Canopy temperature correlated negatively with grain yield, biomass, spike weight and harvest index.
- Taxon
- Durum WheatTriticum turgidum subsp. durumt0
- Outcome
- CTe0
- Direction
- negatively correlatede0
- Comparator
- GY, BIO, SW and HIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CT was negatively correlated with GY, BIO, SW and HI (p<0.05)”
t0“Durum Wheat”
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See all 15 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.