Abstract
A field experiment was conducted at Rice research and training center (RRTC) – Sakha, kafr- El sheikh, governorate, Egypt in 2010 season to study Response of some rice cultivars (H1 hybrid rice and Giza 177 inbred rice) to different methods of irrigation withholding under different sowing dates. Nitrogen fertilizer was used as urea form (46.5% N) in two splits; 2/3 were added as basil and mixed in dry soil before irrigation water and 1/3 was added at panicle initiation. Under different five sowing dates, April 10th, April 25th , May 10th, May 25th and June 10th. Three irrigation withholding, (W1) Irrigation withholding after 10 days from complete heading. (W2) Irrigation withholding after 15 days from complete heading. (W3) Irrigation withholding after 20 days from complete heading. Seedling age at transplanting was 26 days from sowing and by 20X20 cm planting spacing. All agricultural practices were applied as recommended for each cultivar. A split split plot design with four replication was used, five sowing dates allocated in the main plots. Three irrigation withholding were allocated in sub-plots and two rice cultivars were allocated in the sub-sub plots. Main results induced that maximum tillering, panicle initiation, heading dates, grains filling rates (G F R) at five stages, Leaf area index, and grain yield (Ton/ha) were the highest value at (5-10 days after complete heading) growth stage with (W2) of two rice varieties under five sowing dates. So sowing dates at April 25th gave the highest value to all studied characters with H1 hybrid rice variety. While June 10th date of sowing with Giza 177 inbred rice gave the lowest value with all traits under study. The interaction between H1 hybrid rice variety with (W2) irrigation withholding gave the highest value of leaf area index, GFR at different stages. And H1 with April 25th date of sowing gave the highest value of L.A.I. and chlorophyll content.
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Claims 5
Claim · model-written summary
W2 irrigation withholding gave the highest tillering, panicle initiation, heading, grain filling, leaf area and yield across sowing dates and varieties.
- Taxon
- rice
Oryza sativat0 - Treatment
- (W2)e0
- Outcome
- tillering, panicle initiation, heading datese0
- Direction
- highest valuee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum tillering, panicle initiation, heading dates, grains filling rates (G F R) at five stages, Leaf area index, and grain yield (Ton/ha) were the highest value at (5-10 days after complete heading) growth stage with (W2) of two rice varieties under five sowing dates”
t0“rice”
Claim · model-written summary
April 25 sowing with H1 hybrid rice gave the highest studied traits.
- Taxon
- riceOryza sativae0
- Material
- H1 hybrid ricee0
- Treatment
- April 25the0
- Outcome
- all studied characterse0
- Direction
- highest valuee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sowing dates at April 25th gave the highest value to all studied characters with H1 hybrid rice variety”
Claim · model-written summary
June 10 sowing with Giza 177 gave the lowest studied traits.
- Taxon
- riceOryza sativae0
- Material
- Giza 177 inbred ricee0
- Treatment
- June 10th date of sowinge0
- Outcome
- all traits under studye0
- Direction
- lowest valuee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“June 10th date of sowing with Giza 177 inbred rice gave the lowest value with all traits under study”
Claim · model-written summary
H1 with W2 had the highest leaf area index and grain filling rate.
- Taxon
- riceOryza sativae0
- Material
- H1 hybrid rice varietye0
- Treatment
- (W2) irrigation withholdinge0
- Outcome
- leaf area index, GFRe0
- Direction
- highest valuee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H1 hybrid rice variety with (W2) irrigation withholding gave the highest value of leaf area index, GFR at different stages”
Claim · model-written summary
H1 sown April 25 had the highest leaf area index and chlorophyll.
- Taxon
- riceOryza sativat0
- Material
- H1e0
- Treatment
- April 25th date of sowinge0
- Outcome
- L.A.I. and chlorophyll contente0
- Direction
- highest valuee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H1 with April 25th date of sowing gave the highest value of L.A.I. and chlorophyll content”
t0“rice”
The same questions in other papers
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See all 291 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.