Abstract
Background: Determination of the most important level of salicylic acid to increase guar yield in drought stress conditions. Methods: In order to study the effect of potassium and salicylic acid on agricultural and physiological traits of guar in different irrigation treatments, a field experiment was conducted during 2020-2021 under the climatic conditions of Jiroft area (Kerman province, Iran) in the farm of research center and agricultural and natural resources education. The experimental treatments include three levels of irrigation (regular irrigation, stress 60 and 80% of the plant’s water requirement) in strip plots, three levels of salicylic acid (no application, 0.1 and 0.5 mM) as foliar spraying and two levels of potassium (no application and use of 100% of the plant’s need for potassium) in horizontal plots. Result: The results showed that drought stress and application of potassium and salicylic acid had a significant effect on all traits. Decreasing the amount of water led to a decrease in the physiological and functional characteristics of guar compared to regular irrigation. But potassium and salicylic acid were able to improve the yield characteristics and yield of guar under stress and non-stress conditions and the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions. This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.
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Claims 12
Claim · model-written summary
Drought stress, potassium and salicylic acid significantly affected all measured traits.
- Taxon
- guar
Cyamopsis tetragonolobat0 - Treatment
- drought stress and application of potassium and salicylic acide0
- Outcome
- all traitse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress and application of potassium and salicylic acid had a significant effect on all traits.”
t0“Guar”
Claim · model-written summary
Less water decreased guar physiological and functional characteristics relative to regular irrigation.
- Taxon
- guarCyamopsis tetragonolobae0
- Treatment
- Decreasing the amount of watere0
- Outcome
- physiological and functional characteristicse0
- Direction
- decreasee0
- Comparator
- regular irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decreasing the amount of water led to a decrease in the physiological and functional characteristics of guar compared to regular irrigation.”
Claim · model-written summary
Potassium and salicylic acid improved guar yield traits and yield under stress and non-stress conditions.
- Taxon
- guarCyamopsis tetragonolobae0
- Treatment
- potassium and salicylic acide0
- Outcome
- yield characteristics and yielde0
- Direction
- improvee0
- Qualifier
- under stress and non-stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium and salicylic acid were able to improve the yield characteristics and yield of guar under stress and non-stress conditions”
Claim · model-written summary
Potassium plus 0.5 mM salicylic acid was identified as the best treatment in both water conditions.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide0
- Outcome
- best treatment for both conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
t0“Guar”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar plant height by 91% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- plant heighte0
- Direction
- increasee0
- Value
- 91%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar number of leaves by 37% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- number of leavese0
- Direction
- increasee0
- Value
- 37%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar number of pods by 85% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- number of podse0
- Direction
- increasee0
- Value
- 85%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar seed number by 70% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- seed numbere0
- Direction
- increasee0
- Value
- 70%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar seed yield by 100% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- seed yielde0
- Direction
- increasee0
- Value
- 100%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar chlorophyll a by 61% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- chlorophyll ae0
- Direction
- increasee0
- Value
- 61%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar chlorophyll b by 59% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- chlorophyll be0
- Direction
- increasee0
- Value
- 59%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
Claim · model-written summary
At 60% stress, potassium plus 0.5 mM salicylic acid increased guar carotenoid by 100% relative to control.
- Taxon
- guarCyamopsis tetragonolobat0
- Treatment
- potassium + 0.5 mM salicylic acide1
- Outcome
- carotenoide0
- Direction
- increasee0
- Value
- 100%e0
- Qualifier
- 60% stresse0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment at 60% stress led to an increase in plant height (91%), the number of leaves (37%), the number of pods (85%), seed number (70%), seed yield (100%), chlorophyll a (61%), chlorophyll b (59%) and carotenoid (100%) compared to the control treatment.”
t0“Guar”
t1“Guar”
e1“the use of potassium + 0.5 mM salicylic acid were introduced as the best treatment for both conditions.”
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