Abstract
A field study was carried out during the rainy seasons of 2005 and 2006 on sandy clay-loam soil at Deras Research Farm, Mendhasal in Khurda district, Orissa to evaluate the performance of 3 different duration rice (Oryza sativa L.) varieties, viz. 'Khandagiri' (short-duration, 100 days), 'Surendra' (medium-duration, 125 days) and 'Savitri' (long-duration, 150 days) under different spacing in system of rice intensification and compared with the conventional method. The results suggested that the optimum spacing under system of rice intensification in short-and medium-duration varieties was 20 cmx20 cm and for long-duration variety 25 cmx25 cm in terms of grain yield. At the spacing of 20 cmx20 cm, short-and medium-duration varieties gave 46.8 and 41.9% grain yield increase compared to conventional method. Long-duration variety gave 31.2% more grain yield in system of rice intensification than the conventional system at 25 cmx25 cm spacing. In different varieties, yield reduction at wider spacing was mainly due to less number of panicles/m 2 . Thin tillers, short panicles with less number of grains were responsible for reduction in grain yield at narrow spacing in system of rice intensification.
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Claims 7
Claim · model-written summary
The optimum spacing for short- and medium-duration rice varieties was 20 cmx20 cm for grain yield.
- Taxon
- rice
Oryza sativae0 - Material
- short-and medium-duration varietiese0
- Outcome
- grain yielde0
- Value
- 20 cmx20 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the optimum spacing under system of rice intensification in short-and medium-duration varieties was 20 cmx20 cm and for long-duration variety 25 cmx25 cm in terms of grain yield”
Claim · model-written summary
The optimum spacing for the long-duration rice variety was 25 cmx25 cm for grain yield.
- Taxon
- riceOryza sativae0
- Material
- long-duration varietye0
- Outcome
- grain yielde0
- Value
- 25 cmx25 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice intensification in short-and medium-duration varieties was 20 cmx20 cm and for long-duration variety 25 cmx25 cm in terms of grain yield”
Claim · model-written summary
Short-duration rice varieties produced 46.8% more grain yield than the conventional method at 20 cmx20 cm.
- Taxon
- riceOryza sativat0
- Material
- short-and medium-duration varietiese0
- Treatment
- spacing of 20 cmx20 cme0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 46.8e0
- Comparator
- conventional methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the spacing of 20 cmx20 cm, short-and medium-duration varieties gave 46.8 and 41.9% grain yield increase compared to conventional method.”
t0“Performance of rice varieties at different spacing”
Claim · model-written summary
Medium-duration rice varieties produced 41.9% more grain yield than the conventional method at 20 cmx20 cm.
- Taxon
- riceOryza sativat0
- Material
- short-and medium-duration varietiese0
- Treatment
- spacing of 20 cmx20 cme0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 41.9%e0
- Comparator
- conventional methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the spacing of 20 cmx20 cm, short-and medium-duration varieties gave 46.8 and 41.9% grain yield increase compared to conventional method.”
t0“Performance of rice varieties at different spacing”
Claim · model-written summary
Long-duration rice produced 31.2% more grain yield under intensification than the conventional system at 25 cmx25 cm.
- Taxon
- riceOryza sativae0
- Material
- Long-duration varietye0
- Treatment
- system of rice intensificatione0
- Outcome
- grain yielde0
- Direction
- moree0
- Value
- 31.2%e0
- Qualifier
- 25 cmx25 cm spacinge0
- Comparator
- conventional systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Long-duration variety gave 31.2% more grain yield in system of rice intensification than the conventional system at 25 cmx25 cm spacing.”
Claim · model-written summary
Wider spacing reduced yield mainly through fewer panicles per area.
- Taxon
- riceOryza sativat0
- Treatment
- wider spacinge0
- Outcome
- yield reductione0
- Qualifier
- less number of panicles/m 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield reduction at wider spacing was mainly due to less number of panicles/m 2”
t0“Performance of rice varieties at different spacing”
Claim · model-written summary
Narrow spacing reduced yield through thin tillers, short panicles and fewer grains.
- Taxon
- riceOryza sativae0
- Treatment
- narrow spacinge0
- Outcome
- reduction in grain yielde0
- Qualifier
- Thin tillers, short panicles with less number of grainse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thin tillers, short panicles with less number of grains were responsible for reduction in grain yield at narrow spacing in system of rice intensification.”
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905 papers in the same direction as this paper · 201 in the opposite direction · 64 reporting no difference from an alternative
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See all 1,171 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.