Abstract
In order to study the impacts of nitrogen fertilizer and plant density management on growth, dry matter remobilization and yield of durum wheat, Seymareh cultivar, a split plot experiment based on randomized complete block design with three replications was conducted at Agricultural Research Station, Islamic Azad University, Ardabil Branch, Iran in 2009-2010 cropping year. Main plot included three plant densities (300, 350 and 400 seed m -2 ) and sub plots contained four nitrogen levels (0, 70, 140 and 210 kg ha -1 N). Results showed that with increasing nitrogen levels, length of the vegetative growth period increased and dry matter remobilization from the plant to grain and its impact on grain yield decreased. Also, the highest length of generative growth and ripening periods and grain yield were obtained using 140 kg ha -1 N and excess rates, decreased grain yield. With increasing plant density, all measured traits were increased. On account of increase in remobilization and grain yield, prevent of environmental pollution and decrease in fertilizer application as excess cost, application of 140 kg ha -1 N in 400 plant m -2 density (with conditions of this research), is recommended.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Increasing nitrogen levels lengthened the vegetative growth period of durum wheat.
- Taxon
- durum wheat
Triticum turgidum subsp. durume1 - Material
- Seymarehe1
- Treatment
- increasing nitrogen levelse0
- Outcome
- length of the vegetative growth periode0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increasing nitrogen levels, length of the vegetative growth period increased”
e1“yield of durum wheat, Seymareh cultivar”
Claim · model-written summary
Increasing nitrogen levels decreased dry matter remobilization from plant to grain.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Treatment
- increasing nitrogen levelse0
- Outcome
- dry matter remobilization from the plant to graine0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increasing nitrogen levels, length of the vegetative growth period increased and dry matter remobilization from the plant to grain and its impact on grain yield decreased”
e1“yield of durum wheat, Seymareh cultivar”
Claim · model-written summary
Increasing nitrogen levels decreased the contribution of dry matter remobilization to grain yield.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Treatment
- increasing nitrogen levelse2
- Outcome
- its impact on grain yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry matter remobilization from the plant to grain and its impact on grain yield decreased”
e1“yield of durum wheat, Seymareh cultivar”
e2“with increasing nitrogen levels”
Claim · model-written summary
At 140 kg ha -1 N, durum wheat had its longest generative growth and ripening periods.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Treatment
- 140 kg ha -1 Ne0
- Outcome
- length of generative growth and ripening periodse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest length of generative growth and ripening periods and grain yield were obtained using 140 kg ha -1 N”
e1“yield of durum wheat, Seymareh cultivar”
Claim · model-written summary
Durum wheat grain yield was highest at 140 kg ha -1 N.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Treatment
- 140 kg ha -1 Ne0
- Outcome
- grain yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest length of generative growth and ripening periods and grain yield were obtained using 140 kg ha -1 N”
e1“yield of durum wheat, Seymareh cultivar”
Claim · model-written summary
Nitrogen rates above 140 kg ha -1 N decreased durum wheat grain yield.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Treatment
- excess ratese0
- Outcome
- grain yielde0
- Direction
- decreasede0
- Comparator
- 140 kg ha -1 Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using 140 kg ha -1 N and excess rates, decreased grain yield”
e1“yield of durum wheat, Seymareh cultivar”
Claim · model-written summary
Increasing plant density increased all measured durum wheat traits.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Treatment
- increasing plant densitye0
- Outcome
- all measured traitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing plant density, all measured traits were increased”
e1“yield of durum wheat, Seymareh cultivar”
Claim · model-written summary
The authors recommend 140 kg ha -1 N at 400 plant m -2 for durum wheat under the study conditions.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Material
- Seymarehe1
- Outcome
- application of 140 kg ha -1 N in 400 plant m -2 densitye0
- Qualifier
- with conditions of this researche0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 140 kg ha -1 N in 400 plant m -2 density (with conditions of this research), is recommended”
e1“yield of durum wheat, Seymareh cultivar”
The same questions in other papers
nitrogen · growth · Triticum turgidum (rivet wheat)Positive and negative results
2 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →nitrogen · yield · Triticum turgidum (rivet wheat)Positive and negative results
9 papers in the same direction as this paper · 46 in the opposite direction
- positive
- positive
- positive
52 papers more in this group
See all 56 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.