Abstract
Abstract Drought is a major production constraint of cassava worldwide. The objective of this study was to evaluate the chemo-physiological and phytohormone responses of cassava under water stress conditions. Five cassava (Manihot esculenta) varieties were grown in greenhouse conditions under different water regimes (field capacity (FC), 2/3 and 1/3 available water (AW)). The physiological responses to drought were monitored. Plant height, relative water content (RWC) and SPAD Chlorophyll meter reading (SCMR) were recorded at 3, 4 and 5 months after planting. Ethylene accumulate were recorded at 1, 2 and 3 weeks after withholding water at 2 months after planting. The result revealed that plant height and RWC decreased significant difference under water deficit. Plant height and RWC under 1/3 AW had lowest followed by 2/3 AW and FC conditions. Under 1/3 AW, ethylene and SCMR increased significant difference followed by 2/3 AW and FC conditions. Thus, plant height, RWC, SCMR and ethylene accumulation could be used as a criterion in breeding programs to improve drought tolerance in cassava.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Cassava plant height decreased significantly under water deficit and was lowest at one-third available water.
- Taxon
- cassava (Manihot esculenta)
Manihot esculentae1 - Treatment
- water deficite0
- Outcome
- plant heighte0
- Direction
- decreasede0
- Qualifier
- 1/3 AW had lowest followed by 2/3 AWe0
- Comparator
- FC conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height and RWC decreased significant difference under water deficit. Plant height and RWC under 1/3 AW had lowest followed by 2/3 AW and FC conditions”
e1“cassava (Manihot esculenta)”
Claim · model-written summary
Cassava relative water content decreased significantly under water deficit and was lowest at one-third available water.
- Taxon
- cassava (Manihot esculenta)Manihot esculentae1
- Treatment
- water deficite0
- Outcome
- RWCe0
- Direction
- decreasede0
- Qualifier
- 1/3 AW had lowest followed by 2/3 AWe0
- Comparator
- FC conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height and RWC decreased significant difference under water deficit. Plant height and RWC under 1/3 AW had lowest followed by 2/3 AW and FC conditions”
e1“cassava (Manihot esculenta)”
Claim · model-written summary
Ethylene accumulation increased significantly at one-third available water.
- Taxon
- cassava (Manihot esculenta)Manihot esculentae1
- Treatment
- 1/3 AWe0
- Outcome
- ethylenee0
- Direction
- increasede0
- Comparator
- FC conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under 1/3 AW, ethylene and SCMR increased significant difference followed by 2/3 AW and FC conditions”
e1“cassava (Manihot esculenta)”
Claim · model-written summary
SPAD chlorophyll meter readings increased significantly at one-third available water.
- Taxon
- cassava (Manihot esculenta)Manihot esculentae1
- Treatment
- 1/3 AWe0
- Outcome
- SCMRe0
- Direction
- increasede0
- Comparator
- FC conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under 1/3 AW, ethylene and SCMR increased significant difference followed by 2/3 AW and FC conditions”
e1“cassava (Manihot esculenta)”
e2“SPAD Chlorophyll meter reading (SCMR)”
Claim · model-written summary
The authors suggest height, relative water content, chlorophyll reading and ethylene accumulation as breeding criteria for drought tolerance.
- Taxon
- cassavaManihot esculentae0
- Outcome
- criterion in breeding programs to improve drought tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height, RWC, SCMR and ethylene accumulation could be used as a criterion in breeding programs to improve drought tolerance in cassava”
The same questions in other papers
drought · physiology: water · Manihot esculenta (cassava)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
2 papers more in this group
See all 6 papers →drought · growth · Manihot esculenta (cassava)Positive and negative results
21 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
21 papers more in this group
See all 25 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.