Abstract
In order to evaluate the effect of foliar spray of humic acid on the yield and quality characteristics of pomegranate fruit, an experiment was carried out using a randomized complete block design with four replicates in Mahvalat city during 2014 and 2015. Foliar sprays of humic acid were carried out at four concentrations (0 (control treatment), 1000, 2000 and 3000 mg/L-1) at two stages, full bloom and one month after full bloom. Results obtained showed that humic acid sprays had significant effects on fruit yield, number of fruits per tree, fruit weight and fruit size. The highest yield and number of fruits per tree were obtained with the concentration of 3000mg/L-1 humic acid, whereas the heaviest and largest fruits were obtained with the concentration of 2000mg/L-1. Furthermore, humic acid sprays led to increases in TSS, pH, total anthocyanin and total carbohydrate and decreases in TA, in comparison with the control treatment. Foliar applications of humic acid had no effects on the juice antioxidant activity and total phenols. Application of humic acid increased the leaf concentration of N, K and Zn and decreased the leaf concentration of P, whereas it had no significant effect on the leaf Ca and Fe concentrations. Generally speaking, the results obtained showed that foliar sprays of humic acid led to increases in fruit yield through increases in the number of fruit per tree, fruit size and fruit weight, and also it improved the quality parameters of pomegranate fruit.
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
Humic acid significantly affected pomegranate fruit yield, fruit number, weight and size.
- Taxon
- Pomegranate
Punica granatumt0 - Material
- Ardestanit0
- Treatment
- humic acid sprayse0
- Outcome
- fruit yield, number of fruits per tree, fruit weight and fruit sizee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid sprays had significant effects on fruit yield, number of fruits per tree, fruit weight and fruit size”
t0“Pomegranate (Punica granatum cv. Ardestani)”
Claim · model-written summary
The highest pomegranate yield and fruit number occurred at 3000mg/L-1 humic acid.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- 3000mg/L-1 humic acide0
- Outcome
- yield and number of fruits per treee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield and number of fruits per tree were obtained with the concentration of 3000mg/L-1 humic acid”
t0“Pomegranate”
Claim · model-written summary
The heaviest and largest pomegranate fruits occurred at 2000mg/L-1 humic acid.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- 2000mg/L-1e0
- Outcome
- fruitse0
- Direction
- heaviest and largeste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the heaviest and largest fruits were obtained with the concentration of 2000mg/L-1”
t0“Pomegranate”
Claim · model-written summary
Humic acid increased pomegranate fruit TSS, pH and total anthocyanin relative to control.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- humic acid sprayse0
- Outcome
- TSS, pH, total anthocyanine0
- Direction
- increasese0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid sprays led to increases in TSS, pH, total anthocyanin and total carbohydrate and decreases in TA, in comparison with the control treatment”
t0“Pomegranate”
Claim · model-written summary
Humic acid increased pomegranate fruit total carbohydrate relative to control.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- humic acid sprayse0
- Outcome
- total carbohydratee0
- Direction
- increasese0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid sprays led to increases in TSS, pH, total anthocyanin and total carbohydrate and decreases in TA, in comparison with the control treatment”
t0“Pomegranate”
Claim · model-written summary
Humic acid decreased pomegranate fruit TA relative to control.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- humic acid sprayse0
- Outcome
- TAe0
- Direction
- decreasese0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“humic acid sprays led to increases in TSS, pH, total anthocyanin and total carbohydrate and decreases in TA, in comparison with the control treatment”
t0“Pomegranate”
Claim · model-written summary
Humic acid had no effect on pomegranate juice antioxidant activity and total phenols.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- Foliar applications of humic acide0
- Outcome
- juice antioxidant activity and total phenolse0
- Direction
- no effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applications of humic acid had no effects on the juice antioxidant activity and total phenols”
t0“Pomegranate”
Claim · model-written summary
Humic acid increased pomegranate leaf N, K and Zn concentrations.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- Application of humic acide0
- Outcome
- leaf concentration of N, K and Zne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of humic acid increased the leaf concentration of N, K and Zn and decreased the leaf concentration of P”
t0“Pomegranate”
Claim · model-written summary
Humic acid decreased pomegranate leaf P concentration.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- Application of humic acide0
- Outcome
- leaf concentration of Pe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of humic acid increased the leaf concentration of N, K and Zn and decreased the leaf concentration of P”
t0“Pomegranate”
Claim · model-written summary
Humic acid had no significant effect on pomegranate leaf Ca and Fe concentrations.
- Taxon
- PomegranatePunica granatumt0
- Treatment
- Application of humic acide1
- Outcome
- leaf Ca and Fe concentrationse0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it had no significant effect on the leaf Ca and Fe concentrations”
e1“Application of humic acid”
t0“Pomegranate”
The same questions in other papers
other · quality: phytochemicals · Punica granatum (pomegranate)Results differ
2 in the opposite direction
- positive
- positive
other · nutrient: content · Punica granatum (pomegranate)Positive and negative results
2 in the opposite direction
- positive
- positive
other · quality: sugar starch · Punica granatum (pomegranate)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →other · yield · Punica granatum (pomegranate)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →application · quality: sugar starch · Punica granatum (pomegranate)Positive and negative results
18 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
16 papers more in this group
See all 20 papers →application · quality: phytochemicals · Punica granatum (pomegranate)Positive and negative results
4 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 papers →application · yield · Punica granatum (pomegranate)Positive and negative results
46 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
44 papers more in this group
See all 48 papers →other · molecular: metabolites · Punica granatum (pomegranate)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.