Abstract
Salt accumulation in irrigated soils is one of the main factors that diminish crop productivity since most of the crops are not halophytic. A greenhouse experiment was conducted in Rasht, North of Iran during May to June 2010 as a complete randomized block design with three replications. The treatments in this study were application of four levels of saline irrigation water (2, 4, 6 and 8 dS/m, respectively) at four growth stages (tillering, panicle initiation, panicle emergence and ripening). The aim of this study was to determine the effect salinity levels on some agronomic characters of rice. The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant. The least of these yield components were observed at the highest salinity level (8 dS/m). In different growth stages of rice, all yield components were different. Final growth stages, i.e., panicle emergence and ripening showed less sensitivity to salinity but primary stages, i.e., tillering and panicle initiation were more sensitive to salinity. Therefore, irrigation with saline water can be used in the final stages of plant growth, i.e. panicle emergence and ripeness.
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Claims 11
Claim · model-written summary
Increasing saline irrigation water significantly decreased rice length of filled panicle.
- Taxon
- Rice
Oryza sativat0 - Treatment
- increase in salinity levels of irrigation watere0
- Outcome
- length of filled paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant.”
t0“Rice”
Claim · model-written summary
Increasing saline irrigation water significantly decreased rice number of filled grains per filled panicle.
- Taxon
- RiceOryza sativat0
- Treatment
- increase in salinity levels of irrigation watere0
- Outcome
- number of filled grains per filled paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant.”
t0“Rice”
Claim · model-written summary
Increasing saline irrigation water significantly decreased rice number of spikelets per filled panicle.
- Taxon
- RiceOryza sativat0
- Treatment
- increase in salinity levels of irrigation watere0
- Outcome
- number of spikelets per filled paniclee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant.”
t0“Rice”
Claim · model-written summary
Increasing saline irrigation water significantly decreased rice total number of spikelets per panicles.
- Taxon
- RiceOryza sativat0
- Treatment
- increase in salinity levels of irrigation watere0
- Outcome
- total number of spikelets per paniclese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant.”
t0“Rice”
Claim · model-written summary
Salinity level did not significantly affect rice percentage of ratio of filled panicle number to tiller number.
- Taxon
- RiceOryza sativat0
- Treatment
- different salinity levelse0
- Outcome
- percentage of ratio of filled panicle number to tiller numbere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant.”
t0“Rice”
Claim · model-written summary
Salinity level did not significantly affect rice percentage of ratio of yield to straw weight.
- Taxon
- RiceOryza sativat0
- Treatment
- different salinity levelse0
- Outcome
- percentage of ratio of yield to straw weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of this study showed that increase in salinity levels of irrigation water significantly decreased length of filled panicle, number of filled grains per filled panicle, number of spikelets per filled panicle and total number of spikelets per panicles but effect of different salinity levels on percentage of ratio of filled panicle number to tiller number and percentage of ratio of yield to straw weight was not significant.”
t0“Rice”
Claim · model-written summary
Yield components were lowest at the highest salinity level, 8 dS/m.
- Taxon
- RiceOryza sativat0
- Treatment
- highest salinity level (8 dS/m)e0
- Outcome
- yield componentse0
- Direction
- leaste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The least of these yield components were observed at the highest salinity level (8 dS/m).”
t0“Rice”
Claim · model-written summary
Rice yield components differed across growth stages.
- Taxon
- riceOryza sativae0
- Organ / stage
- different growth stagese0
- Outcome
- yield componentse0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In different growth stages of rice, all yield components were different.”
Claim · model-written summary
Rice was less sensitive to salinity at panicle emergence and ripening.
- Taxon
- RiceOryza sativat0
- Organ / stage
- panicle emergence and ripeninge0
- Outcome
- sensitivity to salinitye0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Final growth stages, i.e., panicle emergence and ripening showed less sensitivity to salinity but primary stages, i.e., tillering and panicle initiation were more sensitive to salinity.”
t0“Rice”
Claim · model-written summary
Rice was more sensitive to salinity at tillering and panicle initiation.
- Taxon
- RiceOryza sativat0
- Organ / stage
- tillering and panicle initiatione0
- Outcome
- sensitivity to salinitye0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Final growth stages, i.e., panicle emergence and ripening showed less sensitivity to salinity but primary stages, i.e., tillering and panicle initiation were more sensitive to salinity.”
t0“Rice”
Claim · model-written summary
The authors concluded that saline irrigation can be used at panicle emergence and ripening.
- Taxon
- RiceOryza sativat0
- Organ / stage
- panicle emergence and ripenesse0
- Outcome
- irrigation with saline water can be used in the final stages of plant growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore, irrigation with saline water can be used in the final stages of plant growth, i.e. panicle emergence and ripeness.”
t0“Rice”
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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.