Abstract
Abstract. The aim of the work was to study the effect of the growth regulator “Epin-Ekstra” on the yield and quality indicators of potato tubers Nevskiy variety by the results of field experiments. Methods. The studies on the set objectives were carried out of the conditions in the foothill zone of the Republic of North Ossetia-Alania on the experimental section of the North Caucasus Scientific Research Institute of Mountain and Foothill Agriculture – branch of the Federal Center “Vladikavkaz Scientific Center of the Russian Academy of Sciences” on according to generally accepted methods during 2019–2021. The soil of the experimental plot is leached, heavy loam, medium thickness, underlain by pebbles. Results. The results of the study of the yield of potato Nevskiy variety testify to the positive impact of the growth regulator “Epin-Ekstra” in the conditions of the foothill zone of the Republic of North Ossetia-Alania. Pretreatment of tubers with the growth regulator “Epin-Ekstra” (10 ml/t) and treatment of crops by spraying in the phase of budding growth regulator “Epin-Ekstra” (60 ml/ha) contributed to the formation of the highest yield – 29.6 t/ha, 88,0 % marketability, which is 10,3 t/ha more than control, 4.8 t/ha more than in variant II and 6.1 t/ha – variant III. The best qualitative indicators of potato tubers were observed at complex processing: the content of dry matter – 22.2 %, starch – 12.9 %, vitamin C – 10.4 mg%. The lowest nitrate content of 89 mg/kg in tubers of Nevskiy potato variety was observed in the pre-budding treatment of tubers and the treatment of crops in the phase of budding with the growth regulator “Epin-Ekstra”. Calculations of economic efficiency show that the costs are recouped in all variants of the experience. The highest level of profitability 290,8 %. Cancelled at the complex treatment, which is 110,2 % more than the control variant. Scientific novelty. For the first time in the foothill zone of the Republic of North Ossetia-Alania the effect of the growth regulator “Epin-Ekstra” on the yield and quality of tubers of Nevskiy potato variety was studied. Practical significance. The conducted studies allow us to recommend the use of an effective growth stimulant “Epin-Ekstra” in potato preplanting treatment at a dose of 10 ml/t and when spraying the leaves of plants at a dose of 60 ml/ha in the phase of budding, as environmentally safe and low-cost agricultural practices that ensure increased productivity and quality of potato tubers of the conditions in the foothill zone of the Republic of North Ossetia – Alania.
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Claims 9
Claim · model-written summary
Combined Epin-Ekstra tuber and crop treatment yielded 29.6 t/ha, 10,3 t/ha above control.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- Pretreatment of tubers with the growth regulator “Epin-Ekstra” (10 ml/t) and treatment of crops by spraying in the phase of budding growth regulator “Epin-Ekstra” (60 ml/ha)e0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 29.6 t/hae0
- Qualifier
- 10,3 t/ha more than controle0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Pretreatment of tubers with the growth regulator “Epin-Ekstra” (10 ml/t) and treatment of crops by spraying in the phase of budding growth regulator “Epin-Ekstra” (60 ml/ha) contributed to the formation of the highest yield – 29.6 t/ha, 88,0 % marketability, which is 10,3 t/ha more than control, 4.8 t/ha more than in variant II and 6.1 t/ha – variant III.”
t0“potato”
Claim · model-written summary
Combined treatment produced 88,0 % marketability.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- marketabilitye0
- Value
- 88,0 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the highest yield – 29.6 t/ha, 88,0 % marketability, which is 10,3 t/ha more than control”
t0“potato”
Claim · model-written summary
Complex processing produced 22.2 % dry matter in potato tubers.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- complex processinge0
- Outcome
- content of dry mattere0
- Value
- 22.2 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The best qualitative indicators of potato tubers were observed at complex processing: the content of dry matter – 22.2 %, starch – 12.9 %, vitamin C – 10.4 mg%.”
Claim · model-written summary
Complex processing produced 12.9 % starch in potato tubers.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- complex processinge0
- Outcome
- starche0
- Value
- 12.9 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The best qualitative indicators of potato tubers were observed at complex processing: the content of dry matter – 22.2 %, starch – 12.9 %, vitamin C – 10.4 mg%.”
Claim · model-written summary
Complex processing produced 10.4 mg% vitamin C in potato tubers.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- complex processinge0
- Outcome
- vitamin Ce0
- Value
- 10.4 mg%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The best qualitative indicators of potato tubers were observed at complex processing: the content of dry matter – 22.2 %, starch – 12.9 %, vitamin C – 10.4 mg%.”
Claim · model-written summary
Combined treatment gave the lowest tuber nitrate content, 89 mg/kg.
- Taxon
- potato
Solanum tuberosume0 - Material
- Nevskiye0
- Treatment
- pre-budding treatment of tubers and the treatment of crops in the phase of budding with the growth regulator “Epin-Ekstra”e0
- Outcome
- nitrate contente0
- Direction
- loweste0
- Value
- 89 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The lowest nitrate content of 89 mg/kg in tubers of Nevskiy potato variety was observed in the pre-budding treatment of tubers and the treatment of crops in the phase of budding with the growth regulator “Epin-Ekstra”.”
Claim · model-written summary
Costs were recouped in all treatment variants.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- costs are recoupede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Calculations of economic efficiency show that the costs are recouped in all variants of the experience.”
t0“potato”
Claim · model-written summary
Complex treatment had the highest profitability, 290,8 %, 110,2 % above control.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- complex treatmente0
- Outcome
- profitabilitye0
- Direction
- higheste0
- Value
- 290,8 %e0
- Qualifier
- 110,2 % more than the control variante0
- Comparator
- control variante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest level of profitability 290,8 %. Cancelled at the complex treatment, which is 110,2 % more than the control variant.”
t0“potato”
Claim · model-written summary
The authors recommend preplanting Epin-Ekstra treatment and foliar spraying at budding to improve tuber productivity and quality.
- Taxon
- potato
Solanum tuberosume0 - Outcome
- use of an effective growth stimulant “Epin-Ekstra” in potato preplanting treatment at a dose of 10 ml/t and when spraying the leaves of plants at a dose of 60 ml/ha in the phase of buddinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“recommend the use of an effective growth stimulant “Epin-Ekstra” in potato preplanting treatment at a dose of 10 ml/t and when spraying the leaves of plants at a dose of 60 ml/ha in the phase of budding”
The same questions in other papers
class · yield · Solanum tuberosum (potato)Positive and negative results
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See all 191 papers →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.