Abstract
Heat stress caused by climate change makes it hard to grow potatoes in semi-arid areas, and it also makes pests more of a problem. This study examined the cultivar-specific responses of two Solanum tuberosum cultivars to a foliar VIGORIZER biostimulant (25% Ascophyllum nodosum, 0.5% glycine betaine, 0.05% Fe-EDDHA) under field circumstances in Nineveh, Iraq, where temperatures above 28 °C during tuberization. A split-plot randomized complete block design examined a heat-sensitive cultivar ('Riviera') and a heat-tolerant cultivar ('Arizona') with and without the management of a biostimulant. There were big differences between genotypes. Using biostimulants made 'Riviera' plants perform much better. The tuber weight increased from 192 to 385 g plant⁻¹, the total yield was from 0.49 to 0.82 kg plant⁻¹, the SPAD chlorophyll index went up by 4.4 units, and the tuber crude protein went up by 46%. The Colorado potato beetle (Leptinotarsa decemlineata) caused 57% less damage to the leaves of treated "Riviera" plants. "Arizona" showed slight but important gains in yield and nutritional levels. Physiological and nutrient analyses connected the improvements in "Riviera" to better nitrogen uptake (leaf N went from 2.94% to 3.48%) and more stable photosystem II. A notable cultivar × treatment interaction (η² = 0.74) demonstrates that biostimulant efficacy is contingent upon genotype. These results show that applying foliar biostimulants to certain areas can help plants deal with heat stress and make them stronger and more resistant to pests in potato varieties that are prone to them.
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Claims 10
Claim · model-written summary
Biostimulant treatment increased Riviera tuber weight from 192 to 385 g per plant.
- Taxon
- Solanum tuberosum
Solanum tuberosumt0 - Material
- Rivierae0
- Treatment
- biostimulantse0
- Outcome
- tuber weighte0
- Direction
- increasede0
- Value
- 385 g plant⁻¹e0
- Qualifier
- 192e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using biostimulants made 'Riviera' plants perform much better. The tuber weight increased from 192 to 385 g plant⁻¹”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Riviera total yield rose from 0.49 to 0.82 kg per plant with biostimulant treatment.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Rivierae1
- Treatment
- biostimulantse1
- Outcome
- total yielde0
- Direction
- increaseinferrede0
- Value
- 0.82 kg plant⁻¹e0
- Qualifier
- 0.49e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total yield was from 0.49 to 0.82 kg plant⁻¹”
e1“Using biostimulants made 'Riviera' plants perform much better”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Biostimulant treatment raised Riviera SPAD chlorophyll index by 4.4 units.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Rivierae1
- Treatment
- biostimulantse1
- Outcome
- SPAD chlorophyll indexe0
- Direction
- went upe0
- Value
- 4.4 unitse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the SPAD chlorophyll index went up by 4.4 units”
e1“Using biostimulants made 'Riviera' plants perform much better”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Biostimulant treatment raised Riviera tuber crude protein by 46%.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Rivierae1
- Treatment
- biostimulantse1
- Outcome
- tuber crude proteine0
- Direction
- went upe0
- Value
- 46%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tuber crude protein went up by 46%”
e1“Using biostimulants made 'Riviera' plants perform much better”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Colorado potato beetle caused 57% less leaf damage to treated Riviera plants.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Rivierae0
- Treatment
- foliar VIGORIZER biostimulante1
- Interactor
- Leptinotarsa decemlineata
Leptinotarsa decemlineatae0pest - Outcome
- Colorado potato beetle (Leptinotarsa decemlineata) caused 57% less damage to the leavese0
- Direction
- lesse0
- Value
- 57%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Colorado potato beetle (Leptinotarsa decemlineata) caused 57% less damage to the leaves of treated "Riviera" plants.”
e1“foliar VIGORIZER biostimulant”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Arizona showed slight but important yield gains with biostimulant treatment.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Arizonae0
- Treatment
- foliar VIGORIZER biostimulante1
- Outcome
- yielde0
- Direction
- gainse0
- Qualifier
- slight but importante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“"Arizona" showed slight but important gains in yield and nutritional levels.”
e1“foliar VIGORIZER biostimulant”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Arizona showed slight but important nutritional gains with biostimulant treatment.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Arizonae0
- Treatment
- foliar VIGORIZER biostimulante1
- Outcome
- nutritional levelse0
- Direction
- gainse0
- Qualifier
- slight but importante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“"Arizona" showed slight but important gains in yield and nutritional levels.”
e1“foliar VIGORIZER biostimulant”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Riviera leaf nitrogen rose from 2.94% to 3.48% alongside improved performance.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Rivierae0
- Outcome
- leaf Ne0
- Direction
- increaseinferrede0
- Value
- 3.48%e0
- Qualifier
- 2.94%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improvements in "Riviera" to better nitrogen uptake (leaf N went from 2.94% to 3.48%)”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
Improvement in Riviera was linked to more stable photosystem II.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Material
- Rivierae0
- Outcome
- photosystem IIe0
- Direction
- more stablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improvements in "Riviera" to better nitrogen uptake (leaf N went from 2.94% to 3.48%) and more stable photosystem II”
t0“Potato (Solanum tuberosum)”
Claim · model-written summary
A cultivar by treatment interaction showed genotype-dependent biostimulant efficacy.
- Taxon
- Solanum tuberosumSolanum tuberosumt0
- Treatment
- biostimulante0
- Outcome
- biostimulant efficacye0
- Value
- η² = 0.74e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A notable cultivar × treatment interaction (η² = 0.74) demonstrates that biostimulant efficacy is contingent upon genotype.”
t0“Potato (Solanum tuberosum)”
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