Abstract
The elucidation of drought tolerance mechanisms in plants may facilitate the commercial exploitation of the species J. curcas in semi-arid regions. This study was designed to evaluate the growth and drought tolerance strategy of J. curcas plants grown under different water regimes. The work was carried out on an outdoor bench in full sunlight at Goiás State University, following the completely randomized experiment design with a 2x2 factorial scheme (two wild populations of J. curcas, naturally found in the states of São Paulo and Goiás, and two water supply regimes: 0% and 100% of evapotranspiration) and five replications. First a mixture of soil, sand and manure was prepared at the ratio of 3:1:0.5, respectively. The plants were irrigated daily, and at 60 days of age they were subjected to 10 days of water deficit and then rehydrated for five days. Under water deficit condition the J. curcas plants decreased the shoot growth, adjusted the leaf area to reduce the transpiration rate and increased the root system growth. J. curcas plants delay dehydration as a strategy to tolerate water deficit, for which the species reduces the transpiration rate and sustains tissue hydration using the water stored in the succulent stem.
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 4
Claim · model-written summary
Water deficit reduced shoot growth in J. curcas.
Not reportedComparator
Verbatim
e0“Under water deficit condition the J. curcas plants decreased the shoot growth, adjusted the leaf area to reduce the transpiration rate and increased the root system growth.”
Claim · model-written summary
Water deficit induced leaf area adjustment that reduced transpiration rate.
- Taxon
- J. curcase0
- Organ / stage
- leaf areae0
- Treatment
- water deficite0
- Outcome
- transpiration ratee0
- Direction
- reducee0
Not reportedComparator
Verbatim
e0“Under water deficit condition the J. curcas plants decreased the shoot growth, adjusted the leaf area to reduce the transpiration rate and increased the root system growth.”
Claim · model-written summary
Water deficit increased J. curcas root-system growth.
Not reportedComparator
Verbatim
e0“Under water deficit condition the J. curcas plants decreased the shoot growth, adjusted the leaf area to reduce the transpiration rate and increased the root system growth.”
Claim · model-written summary
J. curcas delays dehydration by reducing transpiration and sustaining tissue hydration with succulent-stem water.
Verbatim
e0“J. curcas plants delay dehydration as a strategy to tolerate water deficit, for which the species reduces the transpiration rate and sustains tissue hydration using the water stored in the succulent stem.”
The same questions in other papers
drought · physiology: gas exchange · Jatropha curcasPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
drought · growth · Jatropha curcasPositive and negative results
2 papers in the same direction as this paper · 6 in the opposite direction
- negative
- no effect
- negative
5 papers more in this group
See all 9 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.