Abstract
Flooding is one of the major harmful abiotic stresses in the low lying areas of Asia and crop losses due to submergence are considerably high. Along with plant breeding techniques, agronomic management options in general and nutrient management in particular should be taken into consideration. Response of Sub 1 and non-Sub1 cultivars of rice to post-flood nitrogen (N) management under variable flood water was compared at maximum tillering stage. Submergence tolerance on survival, leaf senescence, metabolic changes, and anti-oxidant enzymatic activities were evaluated. Sub1 cultivars proved their superiority over IR-20 in terms of significantly higher survival, anti-oxidant enzymes and lower metabolic changes. Turbid water resulted in lower survival because of poor light transmission, chlorophyll retention and silt deposition. Basal phosphorus reduced the elongation, senescence and ethylene accumulation. Post-flood foliar spray of urea substantially increased the chlorophyll, soluble sugars and extenuated ethylene accumulation resulting in significantly higher survival. These nutrient management options can provide opportunities for better survival and productivity even under turbid water, helping farmers to cope with the existing problems in flood-prone areas.
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Claims 9
Claim · model-written summary
Sub1 cultivars had significantly higher survival than IR-20.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sub1 cultivars proved their superiority over IR-20 in terms of significantly higher survival, anti-oxidant enzymes and lower metabolic changes.”
e1“cultivars of rice”
Claim · model-written summary
Sub1 cultivars had higher antioxidant enzymes than IR-20.
- Taxon
- rice
Oryza sativae1 - Material
- Sub1 cultivarse0
- Outcome
- anti-oxidant enzymese0
- Direction
- higherinferrede0
- Comparator
- IR-20e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sub1 cultivars proved their superiority over IR-20 in terms of significantly higher survival, anti-oxidant enzymes and lower metabolic changes.”
e1“cultivars of rice”
Claim · model-written summary
Sub1 cultivars had lower metabolic changes than IR-20.
- Taxon
- riceOryza sativae1
- Material
- Sub1 cultivarse0
- Outcome
- metabolic changese0
- Direction
- lowere0
- Comparator
- IR-20e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sub1 cultivars proved their superiority over IR-20 in terms of significantly higher survival, anti-oxidant enzymes and lower metabolic changes.”
e1“cultivars of rice”
Claim · model-written summary
Turbid water reduced rice survival.
- Taxon
- riceOryza sativae1
- Treatment
- Turbid watere0
- Outcome
- survivale0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Turbid water resulted in lower survival because of poor light transmission, chlorophyll retention and silt deposition.”
e1“cultivars of rice”
Claim · model-written summary
Basal phosphorus reduced elongation and senescence.
- Taxon
- riceOryza sativae1
- Treatment
- Basal phosphoruse0
- Outcome
- elongation, senescencee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Basal phosphorus reduced the elongation, senescence and ethylene accumulation.”
e1“cultivars of rice”
Claim · model-written summary
Basal phosphorus reduced ethylene accumulation.
- Taxon
- riceOryza sativae1
- Treatment
- Basal phosphoruse0
- Outcome
- ethylene accumulatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Basal phosphorus reduced the elongation, senescence and ethylene accumulation.”
e1“cultivars of rice”
Claim · model-written summary
Post flood foliar urea increased chlorophyll and soluble sugars.
- Taxon
- riceOryza sativae1
- Treatment
- Post-flood foliar spray of ureae0
- Outcome
- chlorophyll, soluble sugarse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post-flood foliar spray of urea substantially increased the chlorophyll, soluble sugars and extenuated ethylene accumulation resulting in significantly higher survival.”
e1“cultivars of rice”
Claim · model-written summary
Post flood foliar urea attenuated ethylene accumulation.
- Taxon
- riceOryza sativae1
- Treatment
- Post-flood foliar spray of ureae0
- Outcome
- ethylene accumulatione0
- Direction
- extenuatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post-flood foliar spray of urea substantially increased the chlorophyll, soluble sugars and extenuated ethylene accumulation resulting in significantly higher survival.”
e1“cultivars of rice”
Claim · model-written summary
Post flood foliar urea produced significantly higher survival.
- Taxon
- riceOryza sativae1
- Treatment
- Post-flood foliar spray of ureae0
- Outcome
- survivale0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post-flood foliar spray of urea substantially increased the chlorophyll, soluble sugars and extenuated ethylene accumulation resulting in significantly higher survival.”
e1“cultivars of rice”
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See all 6 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.