Abstract
The aim of the experiment was to investigate the effect of the level and timing of watering on the productivity and chemical constituents of garden thyme (Thymus vulgaris L., cultivar 'Varico 3') at growth stage (GS) 202 based on the extended BBCH scale in growth chamber for 13 weeks. Different irrigation regimes have been applied based on the soil water content (SWC%) as follows: 1) control (C: 1-13th weeks -70% SWC), 2) mild drought stress (S1: 1-4th weeks -70% SWC, from the 6th week, continuously decreasing drought stress to 40% DVD for 10-13th weeks), 3) sudden drought stress (S2: 1-9th weeks -70% SWC, 10-13th weeks -40% DVD), and 4) constant drought stress (S3: 1-4th weeks -70% DVK, 5-13th weeks -40% SWC). At the end of the experiment, it was determined that water deficiency induced no direct impact on the width and height of garden thyme plants, while internode and shoot lengths were affected significantly. The plants grown under constant drought stress (S3) conditions showed the minimum values concerning lengths (internode 1.30 cm, shoot 7.12 cm), while the highest ones (internode 2.50 cm, shoot 22.08 cm) were found in the control treatment. However, water supply had no significant effect on the shoot number and chlorophyll content of the leaves. The impact of drought stress both on rosmarinic acid and total phenolic content (TPC) was significant and showed the highest values in the S2 and S3 treatments: S2 had the highest rosmarinic acid concentration of 4.61%, and S3 had the highest total phenolic concentration of 0.75 mg GAE ml -1 . A similar result was found for antioxidant capacity in the S3 treatment, where plants reached the highest values (275.44 mg AAE g -1 dry weight), while the total flavonoid content was not significantly affected by different water supply levels. The results show that not only the level of water deficiency but also the change in water supply and the timing of the drought may have a significant effect on the quantity and quality of garden thyme production.
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Claims 8
Claim · model-written summary
Water deficiency did not directly change plant width and height.
- Taxon
- garden thyme
.JPG?width=60)
Thymus vulgarise0 - Treatment
- water deficiencye0
- Outcome
- width and heighte0
- Direction
- no direct impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“water deficiency induced no direct impact on the width and height of garden thyme plants”
Claim · model-written summary
Constant drought produced the shortest internodes, 1.30 cm.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- constant drought stress (S3)e0
- Outcome
- internodee0
- Direction
- minimume0
- Value
- 1.30 cme0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“internode and shoot lengths were affected significantly. The plants grown under constant drought stress (S3) conditions showed the minimum values concerning lengths (internode 1.30 cm, shoot 7.12 cm), while the highest ones (internode 2.50 cm, shoot 22.08 cm) were found in the control treatment.”
t0“Thymus vulgaris”
Claim · model-written summary
Shoot length was lowest under constant drought at 7.12 cm, versus 22.08 cm in controls.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- constant drought stress (S3)e0
- Outcome
- shoote0
- Direction
- minimume0
- Value
- 7.12 cme0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants grown under constant drought stress (S3) conditions showed the minimum values concerning lengths (internode 1.30 cm, shoot 7.12 cm), while the highest ones (internode 2.50 cm, shoot 22.08 cm) were found in the control treatment.”
t0“Thymus vulgaris”
Claim · model-written summary
Water supply did not significantly affect shoot number or leaf chlorophyll content.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- water supplye0
- Outcome
- shoot number and chlorophyll content of the leavese0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water supply had no significant effect on the shoot number and chlorophyll content of the leaves.”
t0“Thymus vulgaris”
Claim · model-written summary
Sudden drought produced the highest rosmarinic acid concentration, 4.61%.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- S2e0
- Outcome
- rosmarinic acid concentratione0
- Direction
- higheste0
- Value
- 4.61%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S2 had the highest rosmarinic acid concentration of 4.61%”
t0“Thymus vulgaris”
Claim · model-written summary
Constant drought produced the highest total phenolic concentration, 0.75 mg GAE ml -1.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- S3e0
- Outcome
- total phenolic concentratione0
- Direction
- higheste0
- Value
- 0.75 mg GAE ml -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S3 had the highest total phenolic concentration of 0.75 mg GAE ml -1”
t0“Thymus vulgaris”
Claim · model-written summary
Constant drought produced the highest antioxidant capacity, 275.44 mg AAE g -1 dry weight.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- S3e0
- Outcome
- antioxidant capacitye0
- Direction
- higheste0
- Value
- 275.44 mg AAE g -1 dry weighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant capacity in the S3 treatment, where plants reached the highest values (275.44 mg AAE g -1 dry weight)”
t0“Thymus vulgaris”
Claim · model-written summary
Different water supplies did not significantly affect total flavonoids.
- Taxon
- Thymus vulgarisThymus vulgarist0
- Treatment
- different water supply levelse0
- Outcome
- total flavonoid contente0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total flavonoid content was not significantly affected by different water supply levels.”
t0“Thymus vulgaris”
The same questions in other papers
drought · growth · Thymus vulgaris (thyme)Results differ
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →irrigation · physiology: pigments · Thymus vulgaris (thyme)Results agree
1 paper in the same direction as this paper
- negative
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.