Abstract
Mango production in Kenya is hindered by poor fruit quality and imbalanced fertilizer application, hence the need to investigate the long-term effects of different fertilizer regimes on nutrient cycling, and overall mango orchard sustainability. This study aimed to determine the effects of phosphorus (P) and potassium (K) fertilizers, as well as fruit canopy position, on the nutritional content and morphological characteristics of 'Kent' mango fruits. Seven treatments, P1kg, K1kg, P2kg, K2kg, PK1kg, PK2kg, and control, were repeated five times, resulting in 35 test trees of the "Kent" cultivar, aged 7-8 years. The results indicated that increasing P application significantly boosted β-carotene levels (p ≤ 0.05), while ascorbic acid levels were reduced. However, both β-carotene and α-tocopherol levels were higher in control trees compared to fertilized trees, regardless of the fertilizer type or rate. A weak negative correlation between ascorbic acid and α-tocopherol was observed (r=-0.48, P≤0.05), suggesting a potential trade-off between these two antioxidants. Additionally, fruit weight was strongly correlated with skin weight, stone thickness, and seed thickness. Fruits from within the canopy generally exhibited higher levels of antioxidants than those exposed to direct sunlight. The study provides valuable insights into the influence of P and K fertilizers and canopy position on mango fruit quality. However, further research is needed to optimize fertilizer management practices for sustainable mango production in Kenya.
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Claims 6
Claim · model-written summary
Increasing P application significantly boosted beta-carotene levels in Kent mango fruit.
- Taxon
- mango
_from_India.jpg?width=60)
Mangifera indicae0 - Treatment
- increasing P applicatione1
- Outcome
- β-carotene levelse1
- Direction
- boostede1
- Qualifier
- p ≤ 0.05e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“the nutritional content and morphological characteristics of 'Kent' mango fruits”
e1“The results indicated that increasing P application significantly boosted β-carotene levels (p ≤ 0.05), while ascorbic acid levels were reduced”
Claim · model-written summary
Increasing P application reduced ascorbic acid levels in Kent mango fruit.
- Taxon
- mangoMangifera indicae0
- Treatment
- increasing P applicatione1
- Outcome
- ascorbic acid levelse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional content and morphological characteristics of 'Kent' mango fruits”
e1“The results indicated that increasing P application significantly boosted β-carotene levels (p ≤ 0.05), while ascorbic acid levels were reduced”
Claim · model-written summary
Beta-carotene and alpha-tocopherol levels were higher in control trees than in fertilized trees, regardless of fertilizer type or rate.
- Taxon
- mangoMangifera indicae0
- Treatment
- fertilizer type or ratee2
- Outcome
- β-carotene and α-tocopherol levelse2
- Direction
- highere2
- Comparator
- control treese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional content and morphological characteristics of 'Kent' mango fruits”
e2“both β-carotene and α-tocopherol levels were higher in control trees compared to fertilized trees, regardless of the fertilizer type or rate”
Claim · model-written summary
A weak negative correlation existed between ascorbic acid and alpha-tocopherol in mango fruit.
- Taxon
- mangoMangifera indicae0
- Compound
- ascorbic acide3
- Outcome
- correlation between ascorbic acid and α-tocopherole3
- Direction
- negativee3
- Value
- r=-0.48e3
- Qualifier
- weake3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional content and morphological characteristics of 'Kent' mango fruits”
e3“A weak negative correlation between ascorbic acid and α-tocopherol was observed (r=-0.48, P≤0.05)”
Claim · model-written summary
Fruit weight was strongly correlated with skin weight, stone thickness and seed thickness in mango.
- Taxon
- mangoMangifera indicae0
- Treatment
- skin weight, stone thickness, and seed thicknesse4
- Outcome
- fruit weighte4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional content and morphological characteristics of 'Kent' mango fruits”
e4“fruit weight was strongly correlated with skin weight, stone thickness, and seed thickness”
Claim · model-written summary
Fruits from within the canopy had higher antioxidant levels than fruits exposed to direct sunlight.
- Taxon
- mangoMangifera indicae0
- Organ / stage
- Fruitse5
- Treatment
- within the canopye5
- Outcome
- levels of antioxidantse5
- Direction
- highere5
- Comparator
- those exposed to direct sunlighte5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutritional content and morphological characteristics of 'Kent' mango fruits”
e5“Fruits from within the canopy generally exhibited higher levels of antioxidants than those exposed to direct sunlight”
The same questions in other papers
phosphorus · quality: phytochemicals · Mangifera indica (mango)Positive and negative results
1 in the opposite direction
- positive
fertilization · molecular: metabolites · Mangifera indica (mango)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →phosphorus · molecular: metabolites · Mangifera indica (mango)Results agree
1 paper in the same direction as this paper
- positive
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.