Abstract
BACKGROUND AND OBJECTIVE: There are scarcity scientific reports on the response of medicinal plants to zinc nutrition, despite its remarkable role in growth, cell division, photosynthesis and tryptophan formation, which is involved auxin (IAA) synthesis. Therefore, further studies are required to understand the effects of zinc on one of these important plants, marigold plant. MATERIALS AND METHODS: For this, a greenhouse experiment was conducted to evaluate the promoting impacts of zinc-nutrition (0, 50, 75, 100 mg L-1) on marigold growth, plant height, branch number, herb and root fresh mass (FM), herb and root dry mass (DM), flowering attributes, inflorescence number/plant (IN), inflorescence diameter (ID), inflorescence (IW) weight (fresh and dry), days to first bud emergence, leaf relative water content (RWC) as well as some physiological responses, pigments, total carbohydrate, N, P, K, Zn contents of marigold plants. RESULTS: The results indicated that zinc-fertilizer at 100 mg L-1 was the superior treatment in improving the previous parameters relative to the other levels and control. Supplying Zn significantly enhanced growth parameters, flower attributes, RWC as well as nutrient contents of marigold leaves. Chlorophyll, carotenoids content and carbohydrates (%) were enhanced due to suppling Zn. Zn treatments raised the contents of N, P, K and Zn in leaves relative to unfertilized ones. A comparison of the usage treatments showed that the higher dose of Zn was better than the lower one or control but insignificant differences were observed between this treatment and the intermediate one (75 mg L-1) for some studies parameters. CONCLUSION: The obtained results suggest that exogenous application of Zn could be essentially for the nutrition program of marigold plants to provide plants by the optimum dose of Zn-fertilizer for improving the growth and, quantity and quality of inflorescence parameters.
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Claims 12
Claim · model-written summary
Zinc fertilizer at 100 mg L-1 was superior for the evaluated marigold traits.
Verbatim
e0“zinc-fertilizer at 100 mg L-1 was the superior treatment in improving the previous parameters relative to the other levels and control.”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
Zinc supply significantly enhanced marigold growth parameters.
Not reportedComparator
Verbatim
e0“Supplying Zn significantly enhanced growth parameters, flower attributes, RWC as well as nutrient contents of marigold leaves.”
Claim · model-written summary
Zinc supply significantly enhanced marigold flower attributes.
Not reportedComparator
Verbatim
e0“Supplying Zn significantly enhanced growth parameters, flower attributes, RWC as well as nutrient contents of marigold leaves.”
Claim · model-written summary
Zinc supply significantly enhanced marigold leaf relative water content.
Not reportedComparator
Verbatim
e0“Supplying Zn significantly enhanced growth parameters, flower attributes, RWC as well as nutrient contents of marigold leaves.”
Claim · model-written summary
Zinc supply significantly enhanced nutrient contents of marigold leaves.
- Taxon
- marigolde0
- Treatment
- Supplying Zne0
- Outcome
- nutrient contents of marigold leavese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Supplying Zn significantly enhanced growth parameters, flower attributes, RWC as well as nutrient contents of marigold leaves.”
Claim · model-written summary
Zinc supply enhanced chlorophyll and carotenoid contents in marigold.
Not reportedComparator
Verbatim
e0“Chlorophyll, carotenoids content and carbohydrates (%) were enhanced due to suppling Zn.”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
Zinc supply enhanced carbohydrate percentage in marigold.
Not reportedComparator
Verbatim
e0“Chlorophyll, carotenoids content and carbohydrates (%) were enhanced due to suppling Zn.”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
Zinc treatments increased N, P and K contents in leaves relative to unfertilized plants.
Verbatim
e0“Zn treatments raised the contents of N, P, K and Zn in leaves relative to unfertilized ones.”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
Zinc treatments increased Zn content in leaves relative to unfertilized plants.
Verbatim
e0“Zn treatments raised the contents of N, P, K and Zn in leaves relative to unfertilized ones.”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
The highest zinc dose was better than lower dose or control for studied parameters.
Verbatim
e0“the higher dose of Zn was better than the lower one or control”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
The highest zinc dose did not differ significantly from 75 mg L-1 for some parameters.
- Taxon
- marigolde1
- Treatment
- this treatmente0
- Outcome
- some studies parameterse0
- Comparator
- intermediate one (75 mg L-1)e0
Not reportedDirection
Verbatim
e0“insignificant differences were observed between this treatment and the intermediate one (75 mg L-1) for some studies parameters.”
t0“Tagetes erecta L.”
e1“nutrition program of marigold plants”
Claim · model-written summary
The authors recommend exogenous zinc in marigold nutrition to improve growth and inflorescence quantity and quality.
Verbatim
e0“exogenous application of Zn could be essentially for the nutrition program of marigold plants to provide plants by the optimum dose of Zn-fertilizer for improving the growth and, quantity and quality of inflorescence parameters.”
The same questions in other papers
zinc atom · growth · Tagetes (marigolds)Results agree
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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.