Paper · 2023 · IOP Conference Series Earth and Environmental Science

Effect of Foliar Fertilization with Humic Acid and Garlic Extract on Growth and Yield of Broccoli and its Content of some Secondary Metabolites

Baydaa Rasheed Hilo; Bayader Abd Aljabbar Ali; Haneen Mohammed Jasim

19
claims
38
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

Abstract An experiment was conducted in one of the open fields of the Department of Horticulture and Landscape Engineering, College of Agriculture,Al-Qasim Green University for the autumn season 2021-2022. The experiment included a study of three levels of humic acid (0, 2, 4) ml / liter and three levels of garlic extract (0, 10, 20) ml / liter and the interaction between them in the growth and yield of broccoli plant and its content of total phenols and flavonoids. A factorial experiment (3×3) was conducted according to the split plot design and with three replicates, where each replicate contains 9 treatments. Test the least significant difference L.S.D at the level of 5%. The results showed the humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm, the number of leaves 17.46 leaves / plant, the percentage of dry matter 19.06%, the diameter of curd 23.24 cm, the weight of curd 0.736 kg, and the total amount of phenols in the leaves 1.93 mg / kg. Humic treatment at a concentration of 2 ml / L was significantly excelled in the total amount of phenols in the pink disc at a rate of 1.98 mg / kg. The garlic extract at a concentration of 20 ml/L recorded significantly excelled in recording the highest plant height of 58.42 cm, the percentage of dry matter 19.40%, the curd diameter 23.12 cm, and the curd weight 0.766 kg. In the leaves, it reached 38.15 mg / kg,As for the interaction treatments, most of the interaction treatments recorded significantly excelled in most of the studied traits, but the best interaction treatments were H3G3, which recorded the highest number of leaves 13.60 leaves and the percentage of dry matter 19.73% and the diameter of the pink disc 25 cm and the weight of curd 0.870 kg.While treatment H2G2 recorded the highest value of total phenols in leaves 2.07 mg / kg and treatment H3G2 recorded the highest value of flavonoids in leaves 38.37 mg / kg. Treatment H2G1 recorded the highest value of total phenols in curd amounted to 2.10 mg/kg, and treatment H3G1 recorded the highest value of flavonoids in curd amounting to 38.61 mg/kg.

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Claims 19

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid at 4 ml / liter gave maximum broccoli height of 57.60 cm.

Treatment
humic acid at a concentration of 4 ml / litere0
Outcome
plant heighte0
Direction
higheste0
Value
57.60 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm”

✓ located verbatim in the source · abstract, characters 707–810 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid at 4 ml / liter gave 17.46 leaves per plant.

Treatment
humic acid at a concentration of 4 ml / litere0
Outcome
number of leavese0
Direction
higheste0
Value
17.46 leaves / plante0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm, the number of leaves 17.46 leaves / plant”

✓ located verbatim in the source · abstract, characters 707–853 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid at 4 ml / liter gave 19.06% dry matter.

Treatment
humic acid at a concentration of 4 ml / litere0
Outcome
percentage of dry mattere0
Direction
higheste0
Value
19.06%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm, the number of leaves 17.46 leaves / plant, the percentage of dry matter 19.06%”

✓ located verbatim in the source · abstract, characters 707–890 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid at 4 ml / liter gave curd diameter of 23.24 cm.

Treatment
humic acid at a concentration of 4 ml / litere0
Outcome
diameter of curde0
Direction
higheste0
Value
23.24 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm, the number of leaves 17.46 leaves / plant, the percentage of dry matter 19.06%, the diameter of curd 23.24 cm”

✓ located verbatim in the source · abstract, characters 707–921 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid at 4 ml / liter gave curd weight of 0.736 kg.

Treatment
humic acid at a concentration of 4 ml / litere0
Outcome
weight of curde0
Direction
higheste0
Value
0.736 kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm, the number of leaves 17.46 leaves / plant, the percentage of dry matter 19.06%, the diameter of curd 23.24 cm, the weight of curd 0.736 kg”

✓ located verbatim in the source · abstract, characters 707–950 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid at 4 ml / liter gave leaf phenols of 1.93 mg / kg.

Treatment
humic acid at a concentration of 4 ml / litere0
Outcome
total amount of phenols in the leavese0
Direction
higheste0
Value
1.93 mg / kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid at a concentration of 4 ml / liter in excelled and gave the highest plant height of 57.60 cm, the number of leaves 17.46 leaves / plant, the percentage of dry matter 19.06%, the diameter of curd 23.24 cm, the weight of curd 0.736 kg, and the total amount of phenols in the leaves 1.93 mg / kg”

✓ located verbatim in the source · abstract, characters 707–1010 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Humic acid at 2 ml / L gave pink disc phenols of 1.98 mg / kg.

Treatment
Humic treatment at a concentration of 2 ml / Le0
Outcome
total amount of phenols in the pink disce0
Direction
excellede0
Value
1.98 mg / kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Humic treatment at a concentration of 2 ml / L was significantly excelled in the total amount of phenols in the pink disc at a rate of 1.98 mg / kg”

✓ located verbatim in the source · abstract, characters 1012–1159 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Garlic extract at 20 ml/L gave height of 58.42 cm.

Treatment
garlic extract at a concentration of 20 ml/Le0
Outcome
plant heighte0
Direction
higheste0
Value
58.42 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“garlic extract at a concentration of 20 ml/L recorded significantly excelled in recording the highest plant height of 58.42 cm”

✓ located verbatim in the source · abstract, characters 1165–1291 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Garlic extract at 20 ml/L gave dry matter of 19.40%.

Treatment
garlic extract at a concentration of 20 ml/Le0
Outcome
percentage of dry mattere0
Direction
higheste0
Value
19.40%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“garlic extract at a concentration of 20 ml/L recorded significantly excelled in recording the highest plant height of 58.42 cm, the percentage of dry matter 19.40%”

✓ located verbatim in the source · abstract, characters 1165–1328 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Garlic extract at 20 ml/L gave curd diameter of 23.12 cm.

Treatment
garlic extract at a concentration of 20 ml/Le0
Outcome
curd diametere0
Direction
higheste0
Value
23.12 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“garlic extract at a concentration of 20 ml/L recorded significantly excelled in recording the highest plant height of 58.42 cm, the percentage of dry matter 19.40%, the curd diameter 23.12 cm”

✓ located verbatim in the source · abstract, characters 1165–1356 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Garlic extract at 20 ml/L gave curd weight of 0.766 kg.

Treatment
garlic extract at a concentration of 20 ml/Le0
Outcome
curd weighte0
Direction
higheste0
Value
0.766 kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“garlic extract at a concentration of 20 ml/L recorded significantly excelled in recording the highest plant height of 58.42 cm, the percentage of dry matter 19.40%, the curd diameter 23.12 cm, and the curd weight 0.766 kg”

✓ located verbatim in the source · abstract, characters 1165–1386 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H3G3 gave maximum leaves of 13.60.

Treatment
H3G3e0
Outcome
number of leavese0
Direction
higheste0
Value
13.60 leavese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“H3G3, which recorded the highest number of leaves 13.60 leaves”

✓ located verbatim in the source · abstract, characters 1602–1664 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H3G3 gave maximum dry matter of 19.73%.

Treatment
H3G3e0
Outcome
percentage of dry mattere0
Direction
higheste0
Value
19.73%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“H3G3, which recorded the highest number of leaves 13.60 leaves and the percentage of dry matter 19.73%”

✓ located verbatim in the source · abstract, characters 1602–1704 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H3G3 gave maximum pink disc diameter of 25 cm.

Treatment
H3G3e0
Outcome
diameter of the pink disce0
Direction
higheste0
Value
25 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“H3G3, which recorded the highest number of leaves 13.60 leaves and the percentage of dry matter 19.73% and the diameter of the pink disc 25 cm”

✓ located verbatim in the source · abstract, characters 1602–1744 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H3G3 gave curd weight of 0.870 kg.

Treatment
H3G3e0
Outcome
weight of curde0
Direction
higheste0
Value
0.870 kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“H3G3, which recorded the highest number of leaves 13.60 leaves and the percentage of dry matter 19.73% and the diameter of the pink disc 25 cm and the weight of curd 0.870 kg”

✓ located verbatim in the source · abstract, characters 1602–1776 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H2G2 gave maximum leaf phenols of 2.07 mg / kg.

Treatment
H2G2e0
Outcome
total phenols in leavese0
Direction
higheste0
Value
2.07 mg / kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“H2G2 recorded the highest value of total phenols in leaves 2.07 mg / kg”

✓ located verbatim in the source · abstract, characters 1793–1864 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H3G2 gave maximum leaf flavonoids of 38.37 mg / kg.

Treatment
H3G2e0
Outcome
flavonoids in leavese0
Direction
higheste0
Value
38.37 mg / kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“H3G2 recorded the highest value of flavonoids in leaves 38.37 mg / kg”

✓ located verbatim in the source · abstract, characters 1879–1948 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H2G1 gave maximum curd phenols of 2.10 mg/kg.

Treatment
Treatment H2G1e0
Outcome
total phenols in curde0
Direction
higheste0
Value
2.10 mg/kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment H2G1 recorded the highest value of total phenols in curd amounted to 2.10 mg/kg”

✓ located verbatim in the source · abstract, characters 1950–2039 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H3G1 gave maximum curd flavonoids of 38.61 mg/kg.

Treatment
treatment H3G1e0
Outcome
flavonoids in curde0
Direction
higheste0
Value
38.61 mg/kge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“treatment H3G1 recorded the highest value of flavonoids in curd amounting to 38.61 mg/kg”

✓ located verbatim in the source · abstract, characters 2045–2133 · show in text ↑
t0

“Broccoli”

✓ located verbatim in the source · title, characters 89–97 · show in text ↑

Allium sativum · growth · Brassica oleracea (wild cabbage)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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botanical · growth · Brassica oleracea (wild cabbage)Positive and negative results

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other · quality: phytochemicals · Brassica oleracea (wild cabbage)Results agree

14 papers: 14 positive, 0 negative or no effect

13 papers in the same direction as this paper

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other · growth · Brassica oleracea (wild cabbage)Results agree

25 papers: 25 positive, 0 negative or no effect

24 papers in the same direction as this paper

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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.