Abstract
Abstract It is generally recognized that increased initial plant population or increased seeding rate in saline sodic soils would compensate for decreased germination, and seedling mortality. However, there is little or no experimental evidence of the gains obtained from such a practice. In present investigation the performance of seven rice ( Oryza sativa L.) varieties at three plant populations in a highly saline sodic soil was studied in the field at the Central Soil Salinity Research Institute, Karnal, India. Varieties tested were the tall indica types ‘Jhona 349,’ ‘Jhona 351,’ ‘Basmati 217,’ and ‘Basmati 370’ and the semidwarf types ‘IR 8,’ ‘IR 8–68’ and ‘Jaya.’ Plant populations used were 2, 4, and 6 transplants/hill. Variety IR 8–68, a local selection from IR 8, with 6 transplants/hill gave the significantly highest grain yield at 57.33 quintals/ha. Variety IR 8 at 6 transplants/hill and Jhona 349 at 4 transplants/hill yielded next in order. Increase in plant population from 2 to 4 and 6 transplants/hill resulted in significantly higher grain yield in all varieties except Jhona 349 where there was a decrease at 6 transplants/hill. Increased yield resulted from increased survival of hills and greater number of panicle‐bearing tillers per hill.
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 7
Claim · model-written summary
IR 8–68 at six transplants per hill had the highest grain yield, 57.33 quintals/ha.
- Taxon
- IR 8–68e0
- Material
- IR 8–68e0
- Treatment
- 6 transplants/hille0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 57.33 quintals/hae0
Not reportedSetting
Verbatim
e0“Variety IR 8–68, a local selection from IR 8, with 6 transplants/hill gave the significantly highest grain yield at 57.33 quintals/ha.”
Claim · model-written summary
IR 8 at six transplants per hill ranked next in yield.
- Taxon
- Rice
Oryza sativat0 - Material
- IR 8e0
- Treatment
- 6 transplants/hille0
- Outcome
- yielded next in ordere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variety IR 8 at 6 transplants/hill and Jhona 349 at 4 transplants/hill yielded next in order.”
t0“Rice”
Claim · model-written summary
Jhona 349 at four transplants per hill ranked next in yield.
- Taxon
- RiceOryza sativat0
- Material
- Jhona 349e0
- Treatment
- 4 transplants/hille0
- Outcome
- yielded next in ordere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variety IR 8 at 6 transplants/hill and Jhona 349 at 4 transplants/hill yielded next in order.”
t0“Rice”
Claim · model-written summary
Raising density from two to four or six transplants per hill significantly increased grain yield in all varieties except Jhona 349.
- Taxon
- RiceOryza sativat0
- Treatment
- 4 and 6 transplants/hille0
- Outcome
- grain yielde0
- Direction
- highere0
- Qualifier
- except Jhona 349e0
- Comparator
- 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increase in plant population from 2 to 4 and 6 transplants/hill resulted in significantly higher grain yield in all varieties except Jhona 349 where there was a decrease at 6 transplants/hill.”
t0“Rice”
Claim · model-written summary
At six transplants per hill, Jhona 349 yield decreased.
- Taxon
- RiceOryza sativat0
- Material
- Jhona 349e0
- Treatment
- 6 transplants/hille0
- Outcome
- yielde1
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except Jhona 349 where there was a decrease at 6 transplants/hill.”
t0“Rice”
e1“significantly higher grain yield”
Claim · model-written summary
Higher yield resulted from increased survival of hills.
- Taxon
- RiceOryza sativat0
- Outcome
- Increased yielde0
- Qualifier
- increased survival of hillse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased yield resulted from increased survival of hills and greater number of panicle‐bearing tillers per hill.”
t0“Rice”
Claim · model-written summary
Higher yield also resulted from more panicle bearing tillers per hill.
- Taxon
- RiceOryza sativat0
- Outcome
- Increased yielde0
- Qualifier
- greater number of panicle‐bearing tillers per hille0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased yield resulted from increased survival of hills and greater number of panicle‐bearing tillers per hill.”
t0“Rice”
The same questions in other papers
transplanting · yield · Oryza sativa (rice)Positive and negative results
921 papers in the same direction as this paper · 132 in the opposite direction · 24 reporting no difference from an alternative
- no effect
- no effect
- no effect
1,074 papers more in this group
See all 1,078 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.