Study of GxE interaction in Cuban potato (Solanum tuberosum) clones

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Published: Jul 5, 2013
Keywords:
genotype-environment interaction, clones, potato, Solanum tuberosum

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Ana Estévez
Instituto Nacional de Ciencias Agrícolas

Abstract

At the National Institute of Agricultural Sciences (INCA), during 1991-1995, 12 potato clones from the National Program and three control varieties: Desirée, Baraka and Red Pontiac were planted on a Compacted Red Ferralitic soil, arranged in a randomized block design with four replicates and plots with four rows of 16 plants each at 0.25 m between plants and 0.90 m between rows. In 1995, the experiment was implemented azt the location of Güira de Melena. Tillage and plant protection followed crop technical pattern. The following aspects were evaluated for five clonal generations (years): total yield per plant (kg), commercial yield per plant (kg), tuber number per plant, average tuber weight (kg), stem number per plant, stem height (cm), A. solani and P. infestans occurrence and dry matter content for three generations. Besides, maturation, stem anthocyanin, skin color, flesh color and tuber shape were evaluated in the best clones. Double classification variance analyses with factorial arrangement (15x5), (15x3) and (15x2) were performed from the fourth to the eighth clonal generation, the genotype and environment being the factors considered . A GxE interaction was recorded for every character evaluated except dry matter percentage of tubers. 5-460-87 and 5-84-87 clones showed the best behavior with the highest yields per plant and significant differences compared to control varieties, low infection rates in presence of A. solani and P. infestans as well as good tuber quality and early maturity.

Article Details

How to Cite
Estévez, A. (2013). Study of GxE interaction in Cuban potato (Solanum tuberosum) clones. Cultivos Tropicales, 21(2), 59–63. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/752
Issue
Vol. 21 No. 2 (2000)
Section
Original Article

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