Abstract
Background: Drought stress reduces growth and changes metabolites of medicinal plants. Mycorrhizal fungus in interaction with phosphorus can modify drought stress. Objective: Study the effects of drought stress, mycorhiza and phosphorus fertilizer on growth indexes, quantity and quality of essential oil of medicinal plant Dracocephalum moldavica L. Methods: This study was done on the base of factorial experiment in randomized complete block design with five replications. The factors were consist of three level of drought stress 95% Fc, 65% Fc and 35% Fc, three level of mycorrhizal inoculation (non-inoculated, Glomus mosseae and Glomus intraradiceae) and two level of phosphorus fertilizer (0, 100 kg/ha). Results: Interaction effects were significant between drought stress, mycorhiza and phosphorus factors in all measured attributes at the 1% level. The highest fresh weight of plant and leaf were related to no drought stress condition (95% of field capacity), application of mycorhiza and phosphorus fertilizer treatments. The highest number of flowers, fresh weight of root, and essential oil percent were recorded in mild drought stress (65% of field capacity), mycorrhiza inoculation and application of phosphorus fertilizer. The lowest amount of all of above mentioned traits obtained in severe water stress, without Mycorhiza and phosphorus fertilizer treatments. The highest content of 6-methyl- 2-phenylindole and Z-citral in essential oil were obtained with no drought stress treatment. The mild water stress with application of G. intraradices increased the geranyl formate, geranyl acetate and caryophyllene oxide in essential oil. Conclusion: Application of two mychorhiza strains in severe water stress can increase physiological yield and essential oil percent of Deracocephalum moldavica in about 45- 100%. The essential oil was increased even in no water stress with application of mychorhiza strains.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
The three factors interacted significantly for all measured attributes.
- Taxon
- Dracocephalum moldavica L.
Dracocephalum moldavicat0 - Treatment
- drought stress, mycorhiza and phosphorus factorse0
- Outcome
- all measured attributese0
- Value
- 1%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interaction effects were significant between drought stress, mycorhiza and phosphorus factors in all measured attributes at the 1% level.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
No drought with mycorrhiza and phosphorus gave the highest plant and leaf fresh weights.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- no drought stress condition (95% of field capacity), application of mycorhiza and phosphorus fertilizer treatmentse0
- Interactor
- mycorhizae0symbiont
- Outcome
- fresh weight of plant and leafe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest fresh weight of plant and leaf were related to no drought stress condition (95% of field capacity), application of mycorhiza and phosphorus fertilizer treatments.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
Mild drought with mycorrhiza and phosphorus gave the highest flower number and root fresh weight.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- mild drought stress (65% of field capacity), mycorrhiza inoculation and application of phosphorus fertilizere0
- Interactor
- mycorrhizae0symbiont
- Outcome
- number of flowers, fresh weight of roote0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest number of flowers, fresh weight of root, and essential oil percent were recorded in mild drought stress (65% of field capacity), mycorrhiza inoculation and application of phosphorus fertilizer.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
Mild drought with mycorrhiza and phosphorus gave the highest essential oil percent.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- mild drought stress (65% of field capacity), mycorrhiza inoculation and application of phosphorus fertilizere0
- Interactor
- mycorrhizae0symbiont
- Outcome
- essential oil percente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest number of flowers, fresh weight of root, and essential oil percent were recorded in mild drought stress (65% of field capacity), mycorrhiza inoculation and application of phosphorus fertilizer.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
Severe water stress without mycorrhiza or phosphorus gave the lowest listed growth and essential oil traits.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- severe water stress, without Mycorhiza and phosphorus fertilizer treatmentse0
- Outcome
- all of above mentioned traitse0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest amount of all of above mentioned traits obtained in severe water stress, without Mycorhiza and phosphorus fertilizer treatments.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
No drought gave the highest 6-methyl- 2-phenylindole and Z-citral content in essential oil.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- no drought stress treatmente0
- Outcome
- content of 6-methyl- 2-phenylindole and Z-citral in essential oile0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest content of 6-methyl- 2-phenylindole and Z-citral in essential oil were obtained with no drought stress treatment.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
Mild water stress with G. intraradices increased three essential oil constituents.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- mild water stress with application of G. intraradicese0
- Interactor
- G. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- geranyl formate, geranyl acetate and caryophyllene oxide in essential oile0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mild water stress with application of G. intraradices increased the geranyl formate, geranyl acetate and caryophyllene oxide in essential oil.”
t0“Dracocephalum moldavica L.”
Claim · model-written summary
Mycorrhizal strains under severe water stress increased physiological yield by about 45-100%.
- Taxon
- Deracocephalum moldavicae0
- Treatment
- Application of two mychorhiza strains in severe water stresse0
- Interactor
- mychorhiza strainse0symbiont
- Outcome
- physiological yielde0
- Direction
- increasee0
- Value
- 45- 100%e0
Not reportedComparator
Verbatim
e0“Application of two mychorhiza strains in severe water stress can increase physiological yield and essential oil percent of Deracocephalum moldavica in about 45- 100%.”
Claim · model-written summary
Mycorrhizal strains under severe water stress increased essential oil percent by about 45-100%.
- Taxon
- Deracocephalum moldavicae0
- Treatment
- Application of two mychorhiza strains in severe water stresse0
- Interactor
- mychorhiza strainse0symbiont
- Outcome
- essential oil percente0
- Direction
- increasee0
- Value
- 45- 100%e0
Not reportedComparator
Verbatim
e0“Application of two mychorhiza strains in severe water stress can increase physiological yield and essential oil percent of Deracocephalum moldavica in about 45- 100%.”
Claim · model-written summary
Mycorrhizal strains increased essential oil even without water stress.
- Taxon
- Dracocephalum moldavica L.Dracocephalum moldavicat0
- Treatment
- application of mychorhiza strainse0
- Interactor
- mychorhiza strainse0symbiont
- Outcome
- essential oile0
- Direction
- increasede0
- Qualifier
- no water stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The essential oil was increased even in no water stress with application of mychorhiza strains.”
t0“Dracocephalum moldavica L.”
The same questions in other papers
drought · yield · Dracocephalum moldavicaPositive and negative results
1 in the opposite direction
- negative
drought · growth · Dracocephalum moldavicaPositive and negative results
2 in the opposite direction
- negative
- negative
mycorrhiza · yield · Dracocephalum moldavicaResults agree
1 paper in the same direction as this paper
- positive
inoculation · yield · Dracocephalum moldavicaResults agree
2 papers in the same direction as this paper
- positive
- positive
fertilization · growth · Dracocephalum moldavicaResults agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →fertilization · yield · Dracocephalum moldavicaResults agree
9 papers in the same direction as this paper
- positive
- positive
- positive
6 papers more in this group
See all 10 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.