Abstract
An experiment was conducted to investigate the effects of jasmonic and humic acids on some seed germination characteristics of Roselle under the salt stress condition in a factorial experiment, adopting a completely randomized design with three replications. Treatments included four different levels of salinity stresses: 0, 70, 140 and 210 mM; four levels of Jasmonic Acid: 0, 50, 150 and 200 mM and three levels of humic acid: 0, 40 and 80 mM. The results showed that the effect of salinity on all the traits studied was significant except the ratio of the length of root and shoot. With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control. However, the longitudinal power index increased. In addition, the use of jasmonic acid and humic acids had a significant effect on the traits studied. The interaction of the salt and hormones had a significant impact on plant fresh and dry weight, the length of the root, germination percentage, power weight index and average time needed for 50 percent germination. Given that the highest rate of root length and plant fresh and dry weight belonged to the interaction of humic and jasmonic acid in the absence of salinity, that in the presence of humic acid (with 80 mM concentration), Rosselle can bear salinity up to 140 mM and maintain stamina root length and that the germination rate of Rosselle increases by adding jasmonic acid up to 200 mM, one can conclude that the interaction of jasmonic and humic acids not only improves germination rate, but it also contributes to root length because, with an increase in root length, Rosselle can bear water stress conditions. Highlights: Jasmonic acid and humic acid increase the Rosselle germination in salinity condition. Jasmonic acid and humic acid increase Rosselle the root length in salinity condition.
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Claims 19
Claim · model-written summary
Salinity significantly affected all studied traits except root-to-shoot length ratio.
- Taxon
- Roselle
Hibiscus sabdariffae1 - Treatment
- salinitye0
- Outcome
- all the traits studiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of salinity on all the traits studied was significant except the ratio of the length of root and shoot.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Root-to-shoot length ratio was not significantly affected by salinity.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinitye0
- Outcome
- ratio of the length of root and shoote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of salinity on all the traits studied was significant except the ratio of the length of root and shoot.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced germination percentage by 39%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- germination percentagee0
- Direction
- decreasee0
- Value
- 39%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced germination rate by 55%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- germination ratee0
- Direction
- decreasee0
- Value
- 55%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced fresh and dry weight by 45%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- fresh and dry weighte0
- Direction
- decreasee0
- Value
- 45%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced root length by 30%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- root lengthe0
- Direction
- decreasee0
- Value
- 30%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced shoot length by 42%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- shoot lengthe0
- Direction
- decreasee0
- Value
- 42%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced seedling length by 37%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- seedling lengthe0
- Direction
- decreasee0
- Value
- 37%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced longitudinal index by 67%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- longitudinal indexe0
- Direction
- decreasee0
- Value
- 67%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salinity reduced weighted power by 61%.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- salinity stress condition from 70 to 210 mMe0
- Outcome
- weighted powere0
- Direction
- decreasee0
- Value
- 61%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an increase in salinity stress condition from 70 to 210 mM, there were 39% decrease in germination percentage, 55% in germination rate, 45% in fresh and dry weight, 30% in root length, 42% in shoot length, 37% in seedling length, 67% in longitudinal index and 61% in the weighted power, as compared with the control.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Longitudinal power index increased.
- Taxon
- RoselleHibiscus sabdariffae1
- Outcome
- longitudinal power indexe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, the longitudinal power index increased.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Jasmonic acid significantly affected studied traits.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- jasmonic acide0
- Outcome
- traits studiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of jasmonic acid and humic acids had a significant effect on the traits studied.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Humic acids significantly affected studied traits.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- humic acidse0
- Outcome
- traits studiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of jasmonic acid and humic acids had a significant effect on the traits studied.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salt and hormone interaction significantly affected fresh and dry weight and root length.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- interaction of the salt and hormonese0
- Outcome
- plant fresh and dry weight, the length of the roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction of the salt and hormones had a significant impact on plant fresh and dry weight, the length of the root”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Salt and hormone interaction significantly affected germination percentage, power weight index and time to 50 percent germination.
- Taxon
- RoselleHibiscus sabdariffae1
- Treatment
- interaction of the salt and hormonese0
- Outcome
- germination percentage, power weight index and average time needed for 50 percent germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction of the salt and hormones had a significant impact on plant fresh and dry weight, the length of the root, germination percentage, power weight index and average time needed for 50 percent germination.”
e1“Roselle under the salt stress condition”
Claim · model-written summary
Root length and fresh and dry weight were highest with humic and jasmonic acids without salinity.
Verbatim
e0“the highest rate of root length and plant fresh and dry weight belonged to the interaction of humic and jasmonic acid in the absence of salinity”
e1“Rosselle can bear salinity”
Claim · model-written summary
With 80 mM humic acid, Rosselle tolerated salinity up to 140 mM while maintaining root length.
Verbatim
e0“in the presence of humic acid (with 80 mM concentration), Rosselle can bear salinity up to 140 mM and maintain stamina root length”
Claim · model-written summary
Jasmonic acid up to 200 mM increased Rosselle germination rate.
Not reportedComparator
Verbatim
e0“the germination rate of Rosselle increases by adding jasmonic acid up to 200 mM”
Claim · model-written summary
The authors conclude that humic and jasmonic acid interaction improves germination rate and root length.
Verbatim
e0“the interaction of jasmonic and humic acids not only improves germination rate, but it also contributes to root length”
e1“Rosselle can bear salinity”
The same questions in other papers
salinity · growth · Hibiscus sabdariffa (roselle)Results differ
4 papers in the same direction as this paper
- negative
- negative
- negative
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.