title: An analysis of yield dynamics in Peredovik sunflower variety in the conditions of the North Caucasus Region
metadata.name: dc.contributor.author
metadata.value: Novikova, Liubov
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Gavrilova, Vera
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2023-08-24T11:29:44Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2023-08-24T11:29:44Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2023-06
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Novikova, L. and Gavrilova, V. 2023. An analysis of yield dynamics in Peredovik sunflower variety in the conditions of the North Caucasus Region. Bio. Comm. 68(2): 97–104. https://doi.org/10.21638/spbu03.2023.204
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu03.2023.204
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/43876
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The results of observations for 1971–2002 were used to analyze the long-term
  trends of yield and the duration of the growing season in the sunflower variety
  Peredovik. The regression analysis has shown that the growing season duration
  decreases with the increase in the sum of temperatures above 15 °C. The
  yield of sunflower was negatively associated with the sums of temperatures
  and the sums of precipitation in May–August, and positively with the precipitation
  in April. According to the regression analysis in differences, the main factor
  influencing the yield variability was the hydrothermal coefficient for the period
  with temperatures above 20 °C, the second factor was spring precipitation. The
  possible presence of a non-linear trend in yield dynamics that is not related
  to weather and climate conditions has been revealed. With the sustained tendency
  of the last 30 years towards an increase in temperatures and a decrease
  in precipitation in April, the growing season will keep shortening and the yield
  decreasing.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This work was performed
  within the framework of the State
  Assignment FGEM-2022-0005.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Biological Сommunications;Volume 68; Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: sunflower
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: yield
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: growing season duration
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: An analysis of yield dynamics in Peredovik sunflower variety in the conditions of the North Caucasus Region
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 04.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/43876/1/04.pdf
resources.format: Adobe PDF
resources.size: 1,51 MB