Abstract
A pot experiment was conducted in glass-house to assess the role of Abscisic acid (ABA), Benzyleadenine (BA) and Cycocel (CCC) on growth, yield, ion accumulation and proline production in three rice cultivars viz, Super Basmati, Shaheen Basmati (fine cultivar) and IR-6 (coarse cultivar) differing in yield. Seeds of each cultivar were soaked prior to sowing with ABA and BA each at 10 M and CCC 10 M for 24h. Salinity of 5dS/m was developed by adding NaCl salt in five equal splits daily to fifteen days old plants of all the cultivars. Plants were harvested two weeks after salt treatment. Shoot and root dry weight decreased at salinity stress as compared to control, however ABA, BA and CCC treatment caused a substantial increase in shoots and root dry weight over that of salt alone. Salt treatment increased the level of Na and Cl but decreased K content in flag leaves as well as in roots of three rice cultivars. ABA and CCC treated plants showed significant decrease in Na content but increased K content in flag leaves of all the cultivars at salt stress. ABA was more effective to increase Ca content in flag leaf as well as in roots of all the cultivars as compared with BA and CCC. The levels of ions (Na, K, Ca and Cl) were relatively higher in roots than in flag leaves, however higher accumulation of K and Ca content with lower accumulation of Na and Cl in IR-6. The ranking of growth regulators for their effects on grain yield and 1000-grain weights were ABA>BA>CCC. Higher grain yield and 1000grain weight was recorded by IR-6. ABA and CCC treatment further augmented the stimulatory effect of salts on proline accumulation. Higher proline accumulation was observed in IR-6 as compared to Shaheen Basmati and Super Basmati. Rice cv. IR-6 performed better. The relatively low accumulation of Na and Cl and less translocation to flag leaf of IR-6 concomitant with high K accumulation, better proline content and greater leaf area under salt stress make this variety salt tolerant. These traits are augmented by ABA more effectively than BA.
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Claims 20
Claim · model-written summary
Salt reduced rice shoot and root dry weight.
- Taxon
- rice
Oryza sativat0 - Treatment
- salinity stresse0
- Outcome
- Shoot and root dry weighte0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot and root dry weight decreased at salinity stress as compared to control”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
ABA increased shoot and root dry weight over salt alone.
- Taxon
- riceOryza sativat0
- Treatment
- ABAe0
- Outcome
- shoots and root dry weighte0
- Direction
- increasee0
- Comparator
- salt alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA, BA and CCC treatment caused a substantial increase in shoots and root dry weight over that of salt alone”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
BA increased shoot and root dry weight over salt alone.
- Taxon
- riceOryza sativat0
- Treatment
- BAe0
- Outcome
- shoots and root dry weighte0
- Direction
- increasee0
- Comparator
- salt alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA, BA and CCC treatment caused a substantial increase in shoots and root dry weight over that of salt alone”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
CCC increased shoot and root dry weight over salt alone.
- Taxon
- riceOryza sativat0
- Treatment
- CCCe0
- Outcome
- shoots and root dry weighte0
- Direction
- increasee0
- Comparator
- salt alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA, BA and CCC treatment caused a substantial increase in shoots and root dry weight over that of salt alone”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
Salt raised Na and Cl in flag leaves and roots.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leaves as well as in rootse0
- Treatment
- Salt treatmente0
- Outcome
- level of Na and Cle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt treatment increased the level of Na and Cl but decreased K content in flag leaves as well as in roots of three rice cultivars”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
Salt reduced K content in flag leaves and roots.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leaves as well as in rootse0
- Treatment
- Salt treatmente0
- Outcome
- K contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt treatment increased the level of Na and Cl but decreased K content in flag leaves as well as in roots of three rice cultivars”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
ABA decreased Na in flag leaves under salt stress.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leavese0
- Treatment
- ABAe0
- Outcome
- Na contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA and CCC treated plants showed significant decrease in Na content but increased K content in flag leaves of all the cultivars at salt stress”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
CCC decreased Na in flag leaves under salt stress.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leavese0
- Treatment
- CCCe0
- Outcome
- Na contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA and CCC treated plants showed significant decrease in Na content but increased K content in flag leaves of all the cultivars at salt stress”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
ABA increased K in flag leaves under salt stress.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leavese0
- Treatment
- ABAe0
- Outcome
- K contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA and CCC treated plants showed significant decrease in Na content but increased K content in flag leaves of all the cultivars at salt stress”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
CCC increased K in flag leaves under salt stress.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leavese0
- Treatment
- CCCe0
- Outcome
- K contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA and CCC treated plants showed significant decrease in Na content but increased K content in flag leaves of all the cultivars at salt stress”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
ABA increased Ca in flag leaves and roots more than BA or CCC.
- Taxon
- riceOryza sativat0
- Organ / stage
- flag leaf as well as in rootse0
- Treatment
- ABAe0
- Outcome
- Ca contente0
- Direction
- increasee0
- Comparator
- BA and CCCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA was more effective to increase Ca content in flag leaf as well as in roots of all the cultivars as compared with BA and CCC”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
Na, K, Ca and Cl levels were higher in roots than flag leaves.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Outcome
- levels of ions (Na, K, Ca and Cl)e0
- Direction
- highere0
- Comparator
- flag leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The levels of ions (Na, K, Ca and Cl) were relatively higher in roots than in flag leaves”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
IR-6 accumulated more K and Ca than the other cultivars.
- Taxon
- riceOryza sativat0
- Material
- IR-6e0
- Outcome
- accumulation of K and Ca contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher accumulation of K and Ca content with lower accumulation of Na and Cl in IR-6”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
IR-6 accumulated less Na and Cl than the other cultivars.
- Taxon
- riceOryza sativat0
- Material
- IR-6e0
- Outcome
- accumulation of Na and Cle0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher accumulation of K and Ca content with lower accumulation of Na and Cl in IR-6”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
For grain yield and thousand-grain weight, regulators ranked ABA above BA above CCC.
- Taxon
- riceOryza sativat0
- Treatment
- ABA>BA>CCCe0
- Outcome
- grain yield and 1000-grain weightse0
- Direction
- ABA>BA>CCCe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ranking of growth regulators for their effects on grain yield and 1000-grain weights were ABA>BA>CCC”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
IR-6 had higher grain yield and thousand-grain weight.
- Taxon
- riceOryza sativat0
- Material
- IR-6e0
- Outcome
- grain yield and 1000grain weighte0
- Direction
- Highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher grain yield and 1000grain weight was recorded by IR-6”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
ABA augmented salt-induced proline accumulation.
- Taxon
- riceOryza sativat0
- Treatment
- ABAe0
- Outcome
- proline accumulatione0
- Direction
- augmentede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA and CCC treatment further augmented the stimulatory effect of salts on proline accumulation”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
CCC augmented salt-induced proline accumulation.
- Taxon
- riceOryza sativat0
- Treatment
- CCCe0
- Outcome
- proline accumulatione0
- Direction
- augmentede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA and CCC treatment further augmented the stimulatory effect of salts on proline accumulation”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
IR-6 had higher proline accumulation than Shaheen Basmati and Super Basmati.
- Taxon
- riceOryza sativat0
- Material
- IR-6e0
- Outcome
- proline accumulatione0
- Direction
- Highere0
- Comparator
- Shaheen Basmati and Super Basmatie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher proline accumulation was observed in IR-6 as compared to Shaheen Basmati and Super Basmati”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
IR-6 was interpreted as salt tolerant because of low Na and Cl movement, high K and proline, and greater leaf area.
- Taxon
- riceOryza sativat0
- Material
- IR-6e0
- Outcome
- salt tolerante0
- Qualifier
- low accumulation of Na and Cl and less translocation to flag leafe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relatively low accumulation of Na and Cl and less translocation to flag leaf of IR-6 concomitant with high K accumulation, better proline content and greater leaf area under salt stress make this variety salt tolerant”
t0“rice (Oryza sativa L.)”
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See all 40 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.