Abstract
This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha. The four concentrations of NaCl (mM) were as follows: 0, 20, 40, and 60. Under salinity, the lowest concentration of Na + ions was observed in the tuberous roots; however, the dry matter of tuberous roots was reduced with an application of just 20 mM NaCl. The harvest index was reduced 50% with the highest salt concentration. Salinity reduced carbon assimilation (A), stomatal conductance (g s ), transpiration, and the instantaneous water use efficiency. The correlation between g s and A was high and positive, showing that stomatal movement was one of the responsible for the lower A. Under salt stress, there was an increase in intercellular CO 2 concentration, indicating the impairment of carbon metabolism. Based on the reduction of dry matter of the tuberous roots (reduction of 81% under 60 mM NaCl), it was concluded that cassava is sensitive to salinity. The growth of shoots and the absorbing roots were minimally affected by salinity, even in the situation where A was reduced; therefore, the sensitivity of cassava was related to the high sensitivity of the tuberous roots to the ionic and/or osmotic effects of salinity. Thus, tuberous roots can be the target organ in studies that aim to improve the tolerance of cassava to salinity.
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Claims 12
Claim · model-written summary
Salinity reduced carbon assimilation (A), stomatal conductance and transpiration in cassava.
- Taxon
- cassava plants
Manihot esculentae0 - Material
- Verdinhae0
- Treatment
- Salinitye1
- Outcome
- carbon assimilation (A), stomatal conductance (g s ), transpiratione1
- Direction
- reducede1
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e1“Salinity reduced carbon assimilation (A), stomatal conductance (g s ), transpiration, and the instantaneous water use efficiency”
Claim · model-written summary
Salinity reduced the instantaneous water use efficiency of cassava.
- Taxon
- cassava plantsManihot esculentae0
- Treatment
- Salinitye1
- Outcome
- instantaneous water use efficiencye1
- Direction
- reducede1
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e1“Salinity reduced carbon assimilation (A), stomatal conductance (g s ), transpiration, and the instantaneous water use efficiency”
Claim · model-written summary
Dry matter of cassava tuberous roots was reduced by an application of 20 mM NaCl.
- Taxon
- cassava plantsManihot esculentae0
- Organ / stage
- tuberous rootse4
- Treatment
- 20 mM NaCle4
- Outcome
- dry matter of tuberous rootse4
- Direction
- reducede4
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e4“the dry matter of tuberous roots was reduced with an application of just 20 mM NaCl”
Claim · model-written summary
Harvest index of cassava was reduced by 50% at the highest salt concentration.
- Taxon
- cassava plantsManihot esculentae0
- Treatment
- highest salt concentratione2
- Outcome
- harvest indexe2
- Direction
- reducede2
- Value
- 50%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e2“The harvest index was reduced 50% with the highest salt concentration”
Claim · model-written summary
Dry matter of cassava tuberous roots was reduced by 81% under 60 mM NaCl.
- Taxon
- cassava plantsManihot esculentae0
- Organ / stage
- tuberous rootse3
- Treatment
- 60 mM NaCle3
- Outcome
- dry matter of the tuberous rootse3
- Direction
- reductione3
- Value
- 81%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e3“Based on the reduction of dry matter of the tuberous roots (reduction of 81% under 60 mM NaCl), it was concluded that cassava is sensitive to salinity”
Claim · model-written summary
The correlation between stomatal conductance and carbon assimilation in cassava was high and positive.
- Taxon
- cassava plantsManihot esculentae0
- Outcome
- correlation between g s and Ae6
- Direction
- positivee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e6“The correlation between g s and A was high and positive, showing that stomatal movement was one of the responsible for the lower A”
Claim · model-written summary
Salt stress increased intercellular CO2 concentration in cassava, indicating impaired carbon metabolism.
- Taxon
- cassava plantsManihot esculentae0
- Treatment
- salt stresse5
- Outcome
- intercellular CO 2 concentratione5
- Direction
- increasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e5“Under salt stress, there was an increase in intercellular CO 2 concentration, indicating the impairment of carbon metabolism”
Claim · model-written summary
Cassava is sensitive to salinity.
- Taxon
- cassavaManihot esculentae3
- Outcome
- cassava is sensitive to salinitye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Based on the reduction of dry matter of the tuberous roots (reduction of 81% under 60 mM NaCl), it was concluded that cassava is sensitive to salinity”
Claim · model-written summary
Growth of shoots and absorbing roots of cassava was minimally affected by salinity.
- Taxon
- cassava plantsManihot esculentae0
- Organ / stage
- shoots and the absorbing rootse7
- Treatment
- salinitye7
- Outcome
- growthe7
- Direction
- minimally affectede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e7“The growth of shoots and the absorbing roots were minimally affected by salinity, even in the situation where A was reduced”
Claim · model-written summary
Sensitivity of cassava to salinity is related to the high sensitivity of its tuberous roots to ionic and/or osmotic effects.
- Taxon
- cassavaManihot esculentae1
- Organ / stage
- tuberous rootse1
- Outcome
- sensitivity of cassavae1
- Qualifier
- ionic and/or osmotic effectse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“therefore, the sensitivity of cassava was related to the high sensitivity of the tuberous roots to the ionic and/or osmotic effects of salinity”
Claim · model-written summary
Under salinity, the lowest Na+ ion concentration in cassava was observed in the tuberous roots.
- Taxon
- cassava plantsManihot esculentae0
- Organ / stage
- tuberous rootse1
- Treatment
- salinitye1
- Outcome
- lowest concentration of Na + ionse1
- Direction
- loweste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha”
e1“Under salinity, the lowest concentration of Na + ions was observed in the tuberous roots”
Claim · model-written summary
Tuberous roots can be the target organ in studies aiming to improve cassava salinity tolerance.
- Taxon
- cassavaManihot esculentae1
- Outcome
- target organe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Thus, tuberous roots can be the target organ in studies that aim to improve the tolerance of cassava to salinity”
The same questions in other papers
sodium chloride · growth · Manihot esculenta (cassava)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
salinity · growth · Manihot esculenta (cassava)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
salinity · physiology: photosynthesis · Manihot esculenta (cassava)Results agree
1 paper in the same direction as this paper
- negative
salinity · physiology: gas exchange · Manihot esculenta (cassava)Results agree
1 paper in the same direction as this paper
- negative
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.