Abstract
This study aimed to investigate the effects of different pre-sowing treatments on Jatropha curcas seed germination rate and seedling early growth. Growth and vigour of the seedlings was assessed through the measurements of growth parameters, in order to identify the best pre-sowing treatment, which guarantees both the highest seed germination rate and the best development and growth of the seedlings. J. curcas seeds of the 'Indian' cultivar were collected in Tamale region (Ghana) and subjected to five different pre-sowing treatments: i) control; ii) soaking in 30°C water for 24 h; iii) hammer shell cracking; iv) warm stratification at 37°C for 24 h; v) hammer shell cracking plus warm stratification at 37°C for 24 h. Amongst the sixteen indices considered in the experiment (six germination indices and ten growth rate indices), results revealed that the tested pre-sowing treatments influenced much more seed germination than seedling growth. Shell cracking treatment enhanced seed germination and warm stratification promoted emergence rate and seedling growth as compared to the other tested treatments. Key words: Physic nut, biodiesel, rural development, vegetable oil, land use.
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Claims 4
Claim · model-written summary
Shell cracking enhanced Jatropha curcas seed germination compared with the other tested treatments.
- Taxon
- Jatropha curcas
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Jatropha curcase0 - Material
- 'Indian' cultivare1
- Treatment
- Shell crackinge2
- Outcome
- seed germinatione2
- Direction
- enhancede2
- Comparator
- other tested treatmentse2
- Setting
- Tamale region (Ghana)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_tree_at_Samedha.jpg?width=500)
Verbatim
e0“effects of different pre-sowing treatments on Jatropha curcas seed germination rate”
e1“J. curcas seeds of the 'Indian' cultivar were collected in Tamale region (Ghana) and subjected to five different pre-sowing treatments”
e2“Shell cracking treatment enhanced seed germination and warm stratification promoted emergence rate and seedling growth as compared to the other tested treatments”
Claim · model-written summary
Warm stratification promoted Jatropha curcas emergence rate compared with the other tested treatments.
- Taxon
- Jatropha curcasJatropha curcase0
- Treatment
- warm stratificatione2
- Outcome
- emergence ratee2
- Direction
- promotede2
- Comparator
- other tested treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of different pre-sowing treatments on Jatropha curcas seed germination rate”
e2“Shell cracking treatment enhanced seed germination and warm stratification promoted emergence rate and seedling growth as compared to the other tested treatments”
Claim · model-written summary
Warm stratification promoted Jatropha curcas seedling growth compared with the other tested treatments.
- Taxon
- Jatropha curcasJatropha curcase0
- Treatment
- warm stratificatione2
- Outcome
- seedling growthe2
- Direction
- promotede2
- Comparator
- other tested treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of different pre-sowing treatments on Jatropha curcas seed germination rate”
e2“Shell cracking treatment enhanced seed germination and warm stratification promoted emergence rate and seedling growth as compared to the other tested treatments”
Claim · model-written summary
The tested pre-sowing treatments influenced Jatropha curcas seed germination much more than seedling growth.
- Taxon
- Jatropha curcasJatropha curcase0
- Treatment
- tested pre-sowing treatmentse3
- Outcome
- seed germinatione3
- Direction
- influenced much moree3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of different pre-sowing treatments on Jatropha curcas seed germination rate”
e3“results revealed that the tested pre-sowing treatments influenced much more seed germination than seedling growth”
The same questions in other papers
seed treatment · growth · Jatropha curcasResults agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.