Assessment of the ecological plasticity of early and medium-early potato varieties in the Kamchatka Krai. G.P. VLASENKO

Authors

  • Галина Панфиловна ВЛАСЕНКО (Камчатский научно-исследовательский институт сельского хозяйства, Камчатский край, Елизовский район, пос. Сосновка)

Keywords:

potato, variety, ecological plasticity, stability, coefficient of adaptability, yield

Abstract

Assessment of the ecological plasticity of early and medium-early potato varieties in the Kamchatka Krai. G.P. VLASENKO (Kamchatka Research Institute of Agriculture, Kamchatka Krai, Yelizovsky district, Sosnovka village).

The results of the evaluation of potato varieties by the parameters of ecological plasticity, stability, adaptability in the conditions of a short growing season are presented. Based on the performed analysis to the plastic varieties whose productivity varies in accordance with changes in environmental conditions, combining high yield and stability (with a regression coefficient bi ≥ 1.0) include Fresco, Jubilyar, Sante, Evolution, Severyanin. Selected variety Arizona (bi = 1.42; S2d = 8.99) of the intensive type, characterized by high yield, responsiveness to changes in growing conditions, but having low stability. Neutral varieties (bi close to zero) weakly responding to changes in the environment include: early-maturing varieties – Kamensky, Baron; medium-early varieties – Otrada, Mayak. The medium-early varieties Irbitsky and Pamyati Rogacheva are characterized by high plasticity (bi = 1.45 and 1.3, respectively) and stability (S2d = 0.74 and 0.05), but relatively low yield (22.6 and 22.3 t/ha). Based on the regression coefficient, the Lilya Belorusskaya variety can be called plastic (23.0 t / ha; bi = 0.91; S2d =10.12), but at the same time it has the lowest stability index, that is, the variety depends on the conditions of the year and its behavior is unpredictable. The varieties Arizona, Evolution, Sante, Fresco, Severyanin, and Jubilyar are characterized by high adaptability to the conditions of a short growing season with low heat supply.

Author Biography

Галина Панфиловна ВЛАСЕНКО, (Камчатский научно-исследовательский институт сельского хозяйства, Камчатский край, Елизовский район, пос. Сосновка)

кандидат сельскохозяйственных наук, ведущий научный сотрудник

Published

2021-06-09

How to Cite

ВЛАСЕНКО, Г. П. (2021). Assessment of the ecological plasticity of early and medium-early potato varieties in the Kamchatka Krai. G.P. VLASENKO. Vestnik of the Far East Branch of the Russian Academy of Sciences, (3), 100–105. Retrieved from http://vestnikdvo.ru/index.php/vestnikdvo/article/view/769

Issue

Section

Растениеводство