Abstract
One of the environmental problems that affects negatively orange productivity is drought because it greatly minimizes the growth attributes, photosynthetic process, water uptake, percentage of fruit set, and productivity; meanwhile, it raises the rates of respiration and transpiration, as well as the premature and preharvest fruit drop percentages. In addition, drought creates osmotic stress, affects the relationship between plants and water, reduces the amount of water in shoots, and prevents plant cell development and expansion. It is very important to search for a solution to minimize the effect of drought stress; therefore, the present study has investigated the effect of the application of humic acid (HA) at 0, 1 and 2 kg per tree and spraying of seaweed extract (SWE) at 0.2, 0.3 and 4% in combination with moringa leaf extract (MLE) at 2, 4 and 6%, respectively, on the productivity, fruit quality and nutritional status of navel orange cv. Washington during the 2022 and 2023 seasons. The results proved that the application of the biostimulants individually or in combination significantly positively changed the vegetative growth, productivity, fruit quality parameters and leaf mineral content of macro- and micronutrients of the treated trees compared to untreated trees. The superior treatments which gave the best results were 2 kg HA + 0.4% SWE + 6% MLE followed by 2 kg HA + 0.3% SWE + 4% MLE over the rest of the applied treatments.
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Claims 4
Claim · model-written summary
Applied biostimulants significantly improved vegetative growth, productivity and fruit quality.
- Taxon
- navel orange cv. Washington
Citrus sinensise1 - Treatment
- biostimulantse0
- Outcome
- vegetative growth, productivity, fruit quality parameterse0
- Direction
- positively changede0
- Comparator
- untreated treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of the biostimulants individually or in combination significantly positively changed the vegetative growth, productivity, fruit quality parameters and leaf mineral content of macro- and micronutrients of the treated trees compared to untreated trees”
e1“navel orange cv. Washington”
Claim · model-written summary
Applied biostimulants significantly improved leaf macro- and micronutrient content.
- Taxon
- navel orange cv. WashingtonCitrus sinensise1
- Treatment
- biostimulantse0
- Outcome
- leaf mineral content of macro- and micronutrientse0
- Direction
- positively changede0
- Comparator
- untreated treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of the biostimulants individually or in combination significantly positively changed the vegetative growth, productivity, fruit quality parameters and leaf mineral content of macro- and micronutrients of the treated trees compared to untreated trees”
e1“navel orange cv. Washington”
Claim · model-written summary
The 2 kg HA plus 0.4% SWE plus 6% MLE treatment ranked best.
- Taxon
- navel orange cv. WashingtonCitrus sinensise1
- Treatment
- 2 kg HA + 0.4% SWE + 6% MLEe0
- Outcome
- best resultse0
- Direction
- best resultse0
- Comparator
- rest of the applied treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The superior treatments which gave the best results were 2 kg HA + 0.4% SWE + 6% MLE followed by 2 kg HA + 0.3% SWE + 4% MLE over the rest of the applied treatments”
e1“navel orange cv. Washington”
Claim · model-written summary
The 2 kg HA plus 0.3% SWE plus 4% MLE treatment ranked second.
- Taxon
- navel orange cv. WashingtonCitrus sinensise1
- Treatment
- 2 kg HA + 0.3% SWE + 4% MLEe0
- Outcome
- followed bye0
- Direction
- followed bye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The superior treatments which gave the best results were 2 kg HA + 0.4% SWE + 6% MLE followed by 2 kg HA + 0.3% SWE + 4% MLE over the rest of the applied treatments”
e1“navel orange cv. Washington”
The same questions in other papers
other · quality: grain · Citrus sinensis (sweet orange)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
other · nutrient: content · Citrus sinensis (sweet orange)Results agree
2 papers in the same direction as this paper
- positive
- 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.