Abstract
Horticultural Research Institute, Giza, Egypt, during the growing seasons of 2018 and 2019 to evaluate the influence of NPK fertilization and some natural extracts on the chemical composition of African marigold (Tagetes erecta L. var. dwarf chrysanthemum), using seaweed, Moringa oleifera leaf and dry yeast extracts as a foliar spray at the rate of 0, 1 and 2 g/l three times separately or in combination with NPK fertilizer at two levels (zero and 2 g/pot). Results showed that all natural extract treatments recorded significant increase in all chemical constituents studied. The most significant enhancement in this regard was obtained from providing plants with NPK at 2 g/pot combined with seaweed extract at 2 g/l followed by adding it as a sole application and preceded by moringa leaves extract at 2 g/l as an interaction treatment with NPK at 2 g/pot in elevating -carotene pigment content in dry flowers. Meanwhile, the significantly highest records in total phenols percentages was obtained from applying the combination treatment of NPK at 2 g/pot with moringa leaves extract at 2 g/l followed by the individual application of such extract.
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Claims 4
Claim · model-written summary
Natural extract treatments significantly increased studied chemical constituents in African marigold.
- Taxon
- African marigold
Tagetes erectae0 - Treatment
- all natural extract treatmentse1
- Outcome
- all chemical constituents studiede1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“African marigold (Tagetes erecta L. var. dwarf chrysanthemum)”
e1“all natural extract treatments recorded significant increase in all chemical constituents studied”
Claim · model-written summary
NPK at 2 g/pot combined with seaweed extract at 2 g/l produced the strongest enhancement of flower carotene content.
- Taxon
- African marigoldTagetes erectae0
- Organ / stage
- dry flowerse1
- Treatment
- NPK at 2 g/pot combined with seaweed extract at 2 g/le1
- Outcome
- -carotene pigment contente1
- Direction
- enhancemente1
- Comparator
- adding it as a sole applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“African marigold (Tagetes erecta L. var. dwarf chrysanthemum)”
e1“The most significant enhancement in this regard was obtained from providing plants with NPK at 2 g/pot combined with seaweed extract at 2 g/l followed by adding it as a sole application and preceded by moringa leaves extract at 2 g/l as an interaction treatment with NPK at 2 g/pot in elevating -carotene pigment content in dry flowers.”
Claim · model-written summary
Seaweed extract alone was the next ranked treatment for flower carotene content.
- Taxon
- African marigoldTagetes erectae0
- Treatment
- adding it as a sole applicatione1
- Outcome
- -carotene pigment contente1
- Direction
- elevatinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“African marigold (Tagetes erecta L. var. dwarf chrysanthemum)”
e1“followed by adding it as a sole application and preceded by moringa leaves extract at 2 g/l as an interaction treatment with NPK at 2 g/pot in elevating -carotene pigment content in dry flowers.”
Claim · model-written summary
NPK with moringa leaf extract at 2 g/l gave the highest total phenols percentage.
- Taxon
- African marigoldTagetes erectae0
- Treatment
- NPK at 2 g/pot with moringa leaves extract at 2 g/le1
- Outcome
- total phenols percentagese1
- Direction
- higheste1
- Comparator
- individual application of such extracte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“African marigold (Tagetes erecta L. var. dwarf chrysanthemum)”
e1“the significantly highest records in total phenols percentages was obtained from applying the combination treatment of NPK at 2 g/pot with moringa leaves extract at 2 g/l followed by the individual application of such extract”
The same questions in other papers
other · physiology: pigments · Tagetes erecta (African marigold)Positive and negative results
1 in the opposite direction
- negative
botanical · quality: phytochemicals · Tagetes erecta (African marigold)Results agree
1 paper in the same direction as this paper
- positive
fertilization · quality: phytochemicals · Tagetes erecta (African marigold)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
fertilization · physiology: pigments · Tagetes erecta (African marigold)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 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.