Abstract
A field study was carried out during spring season of 2021 and 2022 at Astaneh-ye Ashrafiyeh, Guilan, (Islamic Azad University, Lahijan, Iran) northern Iran to study the effect of natural gypsum (NG) and zinc (Zn) foliar application on peanut (Arachis hypogaea L.) yield and quality. NG was applied at 4 levels [0 (NG0); 10 (NG10); 20 (NG20); and 30 (NG30) g/m2] and Zn nano-chelates were applied at 3 levels [0 (Zn0); 1 (Zn1); and 2 (Zn2) g/L)] as foliar application. The results showed that the interaction of NG × Zn was significant for leaf chlorophyll, kernel and pod number per plant, kernel protein, oil content and and kernel yield during both the years. The interaction of NG × Zn was also significant on the P, S and Fe of kernels. Leaf K and Fe contents were significantly influenced only by NG. The comparison between mean revealed that the highest kernel yield (5839 kg/ha), kernel number (93.5 kernels/plant), pod number (66.3 pods/plant) and kernel S (0.384%) were recorded from the plots applied with NG20 + Zn2. The highest leaf chlorophyll (3.83 mg/kg FW) and oil content (46.09%) were related to the treatment NG20 + Zn1. The plots applied with NG10 + Zn2 exhibited the highest kernel protein (17.92%). Based on the results, it can be stated that the NG and Zn as soil application and foliar spray respectively, improved peanut yield and qualitative traits hence can be recommended for similar climatic conditions.
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Claims 11
Claim · model-written summary
Gypsum-by-zinc interactions significantly affected leaf chlorophyll, kernel and pod number, kernel protein, oil content and yield.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG × Zne0
- Outcome
- leaf chlorophyll, kernel and pod number per plant, kernel protein, oil content and and kernel yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the interaction of NG × Zn was significant for leaf chlorophyll, kernel and pod number per plant, kernel protein, oil content and and kernel yield during both the years.”
t0“groundnut”
Claim · model-written summary
Gypsum-by-zinc interactions significantly affected kernel P, S and Fe.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG × Zne0
- Outcome
- P, S and Fe of kernelse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The interaction of NG × Zn was also significant on the P, S and Fe of kernels.”
t0“groundnut”
Claim · model-written summary
Gypsum alone significantly influenced leaf K and Fe.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NGe0
- Outcome
- Leaf K and Fe contentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Leaf K and Fe contents were significantly influenced only by NG.”
t0“groundnut”
Claim · model-written summary
NG20 plus Zn2 produced the highest kernel yield, 5839 kg/ha.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG20 + Zn2e0
- Outcome
- kernel yielde0
- Direction
- higheste0
- Value
- 5839 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the highest kernel yield (5839 kg/ha), kernel number (93.5 kernels/plant), pod number (66.3 pods/plant) and kernel S (0.384%) were recorded from the plots applied with NG20 + Zn2.”
t0“groundnut”
Claim · model-written summary
NG20 plus Zn2 produced the highest kernel number, 93.5 kernels per plant.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG20 + Zn2e0
- Outcome
- kernel numbere0
- Direction
- higheste0
- Value
- 93.5 kernels/plante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the highest kernel yield (5839 kg/ha), kernel number (93.5 kernels/plant), pod number (66.3 pods/plant) and kernel S (0.384%) were recorded from the plots applied with NG20 + Zn2.”
t0“groundnut”
Claim · model-written summary
NG20 plus Zn2 produced the highest pod number, 66.3 pods per plant.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG20 + Zn2e0
- Outcome
- pod numbere0
- Direction
- higheste0
- Value
- 66.3 pods/plante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the highest kernel yield (5839 kg/ha), kernel number (93.5 kernels/plant), pod number (66.3 pods/plant) and kernel S (0.384%) were recorded from the plots applied with NG20 + Zn2.”
t0“groundnut”
Claim · model-written summary
NG20 plus Zn2 produced the highest kernel sulfur, 0.384%.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG20 + Zn2e0
- Outcome
- kernel Se0
- Direction
- higheste0
- Value
- 0.384%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the highest kernel yield (5839 kg/ha), kernel number (93.5 kernels/plant), pod number (66.3 pods/plant) and kernel S (0.384%) were recorded from the plots applied with NG20 + Zn2.”
t0“groundnut”
Claim · model-written summary
NG20 plus Zn1 produced the highest leaf chlorophyll, 3.83 mg/kg FW.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG20 + Zn1e0
- Outcome
- leaf chlorophylle0
- Direction
- higheste0
- Value
- 3.83 mg/kg FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest leaf chlorophyll (3.83 mg/kg FW) and oil content (46.09%) were related to the treatment NG20 + Zn1.”
t0“groundnut”
Claim · model-written summary
NG20 plus Zn1 produced the highest oil content, 46.09%.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG20 + Zn1e0
- Outcome
- oil contente0
- Direction
- higheste0
- Value
- 46.09%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest leaf chlorophyll (3.83 mg/kg FW) and oil content (46.09%) were related to the treatment NG20 + Zn1.”
t0“groundnut”
Claim · model-written summary
NG10 plus Zn2 produced the highest kernel protein, 17.92%.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- NG10 + Zn2e0
- Outcome
- kernel proteine0
- Direction
- higheste0
- Value
- 17.92%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The plots applied with NG10 + Zn2 exhibited the highest kernel protein (17.92%).”
t0“groundnut”
Claim · model-written summary
The authors recommend gypsum soil application with foliar zinc for similar climates.
- Taxon
- peanut
Arachis hypogaeae0 - Outcome
- NG and Zn as soil application and foliar spray respectivelye0
- Qualifier
- similar climatic conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the NG and Zn as soil application and foliar spray respectively, improved peanut yield and qualitative traits hence can be recommended for similar climatic conditions.”