Abstract
Two field trials were conducted at Ihe extension field in Shieba viltage, Zagazig. Destrict (Sharkia Governorate) during 2001/2002 and 2002/2003 growing seasons to study the eHect of nitrogen levels (zero, 40 and 80 kg Ntfed ) and timing of application (once full, two and tree equal doses) on yield and its attributes and quality of hull- less barley cultivars (Giza 129, Giza 130 and Giza 131). The results show that, barley cultivars diHered significantly regarding their plant height, flag leaf area, spike length, number of grains/spike, protein %, biological yield (ton Ifed) and harvest index. The increase of nitrogen level up to 80 kg N/ fed produced significant increases in grain yield (ton/fed.), protein content % and almost of all yield attributes. Also, the application of nitrogen in three equal doses (at sowing, at tiUering and jointing stages) recorded the highest average values of yield and its attributes. The interaction between barley cultivars and nitrogen levels was significant and showed that grain yield of Giza 131 CV. exhibit in the highest response grain yield/ ed to the Increase of N level and splitting of N doses compared to the other cultivars The results indicated that grain yield/fed was positively and highly significantly correlated with almost studied traits including number of grains/spike, weight of grains/plant, number of spikes/m", 1 OOO-grain weight and protein content %. Path analysis revealed that (he main sources of grain Yield variation according to their relative importance were number of grains/spike, number of spikes /m" and WOO-grain weight, since the direct and indirect eHects. of these characters contributed more than 64.21 % from the variation of grain yield.
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Claims 9
Claim · model-written summary
Barley cultivars differed significantly in plant height, flag leaf area, and spike length.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Material
- Giza 129, Giza 130 and Giza 131e0
- Outcome
- plant height, flag leaf area, spike lengthe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“barley cultivars diHered significantly regarding their plant height, flag leaf area, spike length, number of grains/spike, protein %, biological yield (ton Ifed) and harvest index”
Claim · model-written summary
Barley cultivars differed significantly in grains per spike, protein percentage, biological yield, and harvest index.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- number of grains/spike, protein %, biological yield (ton Ifed) and harvest indexe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley cultivars diHered significantly regarding their plant height, flag leaf area, spike length, number of grains/spike, protein %, biological yield (ton Ifed) and harvest index”
Claim · model-written summary
Increasing nitrogen to 80 kg N/fed significantly increased grain yield.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- nitrogen level up to 80 kg N/ fede1
- Outcome
- grain yield (ton/fed.)e1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“The increase of nitrogen level up to 80 kg N/ fed produced significant increases in grain yield (ton/fed.), protein content % and almost of all yield attributes.”
Claim · model-written summary
Increasing nitrogen to 80 kg N/fed significantly increased protein content.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- nitrogen level up to 80 kg N/ fede1
- Outcome
- protein content %e1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“The increase of nitrogen level up to 80 kg N/ fed produced significant increases in grain yield (ton/fed.), protein content % and almost of all yield attributes.”
Claim · model-written summary
Increasing nitrogen to 80 kg N/fed significantly increased nearly all yield attributes.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- nitrogen level up to 80 kg N/ fede1
- Outcome
- almost of all yield attributese1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“The increase of nitrogen level up to 80 kg N/ fed produced significant increases in grain yield (ton/fed.), protein content % and almost of all yield attributes.”
Claim · model-written summary
Three equal nitrogen doses gave the highest average yield and yield attributes.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- nitrogen in three equal dosese1
- Outcome
- yield and its attributese1
- Direction
- higheste1
- Comparator
- once full, twoe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“the application of nitrogen in three equal doses (at sowing, at tiUering and jointing stages) recorded the highest average values of yield and its attributes”
e2“timing of application (once full, two and tree equal doses)”
Claim · model-written summary
Giza 131 had the highest grain-yield response to nitrogen increases and split doses among cultivars.
- Taxon
- barleyHordeum vulgaree0
- Material
- Giza 131e1
- Treatment
- Increase of N level and splitting of N dosese1
- Outcome
- grain yielde1
- Direction
- higheste1
- Comparator
- the other cultivarse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“grain yield of Giza 131 CV. exhibit in the highest response grain yield/ ed to the Increase of N level and splitting of N doses compared to the other cultivars”
Claim · model-written summary
Grain yield was positively and highly significantly correlated with grains per spike, grain weight per plant, spikes per area, thousand-grain weight, and protein content.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- grain yield/fede1
- Direction
- positivelye1
- Qualifier
- number of grains/spike, weight of grains/plant, number of spikes/m", 1 OOO-grain weight and protein content %e1
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“grain yield/fed was positively and highly significantly correlated with almost studied traits including number of grains/spike, weight of grains/plant, number of spikes/m", 1 OOO-grain weight and protein content %”
Claim · model-written summary
Grains per spike, spikes per area, and thousand-grain weight accounted for more than 64.21% of grain-yield variation in path analysis.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- variation of grain yielde1
- Value
- more than 64.21 %e1
- Qualifier
- number of grains/spike, number of spikes /m" and WOO-grain weighte1
Not reportedMaterialDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hull- less barley cultivars (Giza 129, Giza 130 and Giza 131)”
e1“number of grains/spike, number of spikes /m" and WOO-grain weight, since the direct and indirect eHects. of these characters contributed more than 64.21 % from the variation of grain yield”
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See all 299 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.