Abstract
In this work, the influence of chitosan on vegetative organs growth and peroxidases activities in cassava (Manihot esculenta, Euphorbiaceae) plants grown in hydroponic was studied.The experiment was carried out under a greenhouse lit by natural light at the Ecology Research Center (Côte d'Ivoire).Six concentrations of chitosan (0, 25, 50, 75, 100 and 125 mg L -1 ) added to the culture media were tested on four cassava cultivars (Yace, 9620A, TMS4(2)1425 and TMS30572).These media are renewed every 15 days and growth of the plants lasted two months.The results showed that chitosan stimulated the growth of 1.1 to 1.4 according to cultivars and organs.Peroxidases activities were 1.5 to 2.6 times higher in leaves and roots in presence of 75 or 100 mg L -1 of chitosan depending on the cultivars.This activity is multiplied by 2.3 to 2.6 respectively in leaves and roots of Yacé, 2.6 and 1.5 of TMS30572, 1.9 and 2.2 of TMS4(2)1425.In 9620A, this factor was less than 2.These results show that chitosan could be a biostimulator in cassava.
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Claims 10
Claim · model-written summary
Chitosan stimulated cassava organ growth by 1.1 to 1.4 according to cultivar and organ.
- Taxon
- cassava
Manihot esculentat0 - Treatment
- chitosane0
- Outcome
- growthe0
- Direction
- stimulatede0
- Value
- 1.1 to 1.4e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan stimulated the growth of 1.1 to 1.4 according to cultivars and organs”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
Chitosan at 75 or 100 mg L -1 raised peroxidase activities in leaves and roots 1.5 to 2.6 times.
- Taxon
- cassavaManihot esculentat0
- Organ / stage
- leaves and rootse0
- Treatment
- 75 or 100 mg L -1 of chitosane0
- Outcome
- Peroxidases activitiese0
- Direction
- highere0
- Value
- 1.5 to 2.6 timese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxidases activities were 1.5 to 2.6 times higher in leaves and roots in presence of 75 or 100 mg L -1 of chitosan depending on the cultivars.”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
Yacé leaf peroxidase activity increased 2.3 times with chitosan.
- Taxon
- cassavaManihot esculentat0
- Material
- Yacée0
- Organ / stage
- leavese0
- Treatment
- chitosane1
- Outcome
- activitye0
- Direction
- multipliede0
- Value
- 2.3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This activity is multiplied by 2.3 to 2.6 respectively in leaves and roots of Yacé”
e1“in presence of 75 or 100 mg L -1 of chitosan”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
Yacé root peroxidase activity increased 2.6 times with chitosan.
- Taxon
- cassavaManihot esculentat0
- Material
- Yacée0
- Organ / stage
- rootse0
- Treatment
- chitosane1
- Outcome
- activitye0
- Direction
- multipliede0
- Value
- 2.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This activity is multiplied by 2.3 to 2.6 respectively in leaves and roots of Yacé”
e1“in presence of 75 or 100 mg L -1 of chitosan”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
TMS30572 leaf peroxidase activity increased 2.6 times.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS30572e0
- Organ / stage
- leavese1
- Treatment
- chitosane2
- Outcome
- Peroxidases activitiese3
- Direction
- highere3
- Value
- 2.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2.6 and 1.5 of TMS30572”
e1“respectively in leaves and roots of Yacé”
e2“in presence of 75 or 100 mg L -1 of chitosan”
e3“Peroxidases activities were 1.5 to 2.6 times higher”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
TMS30572 root peroxidase activity increased 1.5 times.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS30572e0
- Organ / stage
- rootse1
- Treatment
- chitosane2
- Outcome
- Peroxidases activitiese3
- Direction
- highere3
- Value
- 1.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2.6 and 1.5 of TMS30572”
e1“respectively in leaves and roots of Yacé”
e2“in presence of 75 or 100 mg L -1 of chitosan”
e3“Peroxidases activities were 1.5 to 2.6 times higher”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
TMS4(2)1425 leaf peroxidase activity increased 1.9 times.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS4(2)1425e0
- Organ / stage
- leavese1
- Treatment
- chitosane2
- Outcome
- Peroxidases activitiese3
- Direction
- highere3
- Value
- 1.9e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.9 and 2.2 of TMS4(2)1425”
e1“respectively in leaves and roots of Yacé”
e2“in presence of 75 or 100 mg L -1 of chitosan”
e3“Peroxidases activities were 1.5 to 2.6 times higher”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
TMS4(2)1425 root peroxidase activity increased 2.2 times.
- Taxon
- cassavaManihot esculentat0
- Material
- TMS4(2)1425e0
- Organ / stage
- rootse1
- Treatment
- chitosane2
- Outcome
- Peroxidases activitiese3
- Direction
- highere3
- Value
- 2.2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.9 and 2.2 of TMS4(2)1425”
e1“respectively in leaves and roots of Yacé”
e2“in presence of 75 or 100 mg L -1 of chitosan”
e3“Peroxidases activities were 1.5 to 2.6 times higher”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
The peroxidase response factor in cultivar 9620A was less than 2.
- Taxon
- cassavaManihot esculentat0
- Material
- 9620Ae0
- Treatment
- chitosane1
- Outcome
- Peroxidases activitiese2
- Direction
- highere2
- Value
- less than 2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 9620A, this factor was less than 2”
e1“in presence of 75 or 100 mg L -1 of chitosan”
e2“Peroxidases activities were 1.5 to 2.6 times higher”
t0“cassava (Manihot esculenta Crantz)”
Claim · model-written summary
The authors conclude that chitosan could serve as a cassava biostimulator.
- Taxon
- cassavaManihot esculentae0
- Outcome
- chitosan could be a biostimulatore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan could be a biostimulator in cassava”
The same questions in other papers
chitosan · growth · Manihot esculenta (cassava)Results agree
1 paper in the same direction as this paper
- positive
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.