Abstract
Sage (Salvia officinalis L.) is cultivated worldwide especially in Mediterranean regions in which the leaves of this herb are widely used in pharmaceutical and food industries. Brassinolides and paclobutrazol are naturally occurring substances which modulate plant growth and development events and have been known to improve the crops tolerance to biotic and abiotic stresses. The effects of spraying of 24-epibrassinolide (BRs: 0.0, 2.5, 3.0, and 3.5 µM) and paclobutrazol (PBZ: 17, 25, and 34 µM), different moisture conditions (I: normal irrigation or non-stress, reduced irrigation or non-stress, reduced irrigation or slight drought, and deficit irrigation or mild drought stress), and interaction effects of BRs × I and PBZ × I on the morphological and biochemical parameters of the S. officinalis leaves were investigated. Reduction in level irrigation led to decrease plant height, the numbers of branches, fresh herbal and dry weight, fresh roots and dry weight while it improved content of anthocyanin and chlorophyll. The spraying of BRs enhanced plant height, the numbers of branches, anthocyanin and chlorophyll with 3 µmolar concentration proving the best. The most values of fresh root and dry weight was associated with combination of the highest irrigation (I3) and applying 17µM PBZ. Highest value of chlorophyll a and total reached in I3×P3. Maximum content of anthocyanin and chlorophyll b were observed in BRs2×I3 and BRs2×P2 respectively. Finally, we can be concluded that the foliar spraying of BRs and PBZ improve most of the features of sage under deficit irrigation.
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Claims 8
Claim · model-written summary
Reduced irrigation decreased sage height, branch number, and fresh and dry herbal and root weights.
- Taxon
- Saget0
- Treatment
- Reduction in level irrigatione0
- Outcome
- plant height, the numbers of branches, fresh herbal and dry weight, fresh roots and dry weighte0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“Reduction in level irrigation led to decrease plant height, the numbers of branches, fresh herbal and dry weight, fresh roots and dry weight”
t0“Sage”
Claim · model-written summary
Reduced irrigation improved sage anthocyanin and chlorophyll content.
- Taxon
- Saget0
- Treatment
- Reduction in level irrigatione0
- Outcome
- content of anthocyanin and chlorophylle0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“Reduction in level irrigation led to decrease plant height, the numbers of branches, fresh herbal and dry weight, fresh roots and dry weight while it improved content of anthocyanin and chlorophyll.”
t0“Sage”
Claim · model-written summary
Brassinolide spraying enhanced sage height, branch number, anthocyanin and chlorophyll, with 3 µmolar best.
- Taxon
- Saget0
- Treatment
- spraying of BRse0
- Outcome
- plant height, the numbers of branches, anthocyanin and chlorophylle0
- Direction
- enhancede0
- Value
- 3 µmolare0
Not reportedComparator
Verbatim
e0“The spraying of BRs enhanced plant height, the numbers of branches, anthocyanin and chlorophyll with 3 µmolar concentration proving the best.”
t0“Sage”
Claim · model-written summary
Fresh root and dry weight were highest with I3 irrigation and 17µM PBZ.
- Taxon
- Saget0
- Treatment
- highest irrigation (I3) and applying 17µM PBZe0
- Outcome
- fresh root and dry weighte0
- Direction
- moste0
Not reportedComparator
Verbatim
e0“The most values of fresh root and dry weight was associated with combination of the highest irrigation (I3) and applying 17µM PBZ.”
t0“Sage”
Claim · model-written summary
Chlorophyll a and total chlorophyll reached their highest values under I3×P3.
Verbatim
e0“Highest value of chlorophyll a and total reached in I3×P3.”
t0“Sage”
Claim · model-written summary
Anthocyanin content was maximal under BRs2×I3.
Verbatim
e0“Maximum content of anthocyanin and chlorophyll b were observed in BRs2×I3 and BRs2×P2 respectively.”
t0“Sage”
Claim · model-written summary
Chlorophyll b was maximal under BRs2×P2.
Verbatim
e0“Maximum content of anthocyanin and chlorophyll b were observed in BRs2×I3 and BRs2×P2 respectively.”
t0“Sage”
Claim · model-written summary
Authors concluded foliar BRs and PBZ improve most sage traits under deficit irrigation.
Verbatim
e0“the foliar spraying of BRs and PBZ improve most of the features of sage under deficit irrigation.”