Abstract

ARAMENDIZ TATIS, Hermes; CARDONA AYALA, Carlos Enrique  and  ESPITIA CAMACHO, Miguel Mariano. Phenotypic, genotypic and environmental correlations in eggplant. Acta Agron. [online]. 2009, vol.58, n.4, pp.285-291. ISSN 0120-2812.

The phenotypic, genotypic and environmental correlations between six characters of 24 cultivars of eggplant (Solanum melongena) were studied in the research centre of Turipaná of Corpoica (Cereté- Córdoba-Colombia -8° 31' N and 75° 58' W, 13 m.a.s.l.). A completely randomized block design was used with three repetitions and experimental units of 10 m2. The analyses showed that genetic correlations were of higher or equal magnitude to the phenotypic correlations, while the environmental ones had low effects on the results. The number of fruits and the yield showed a positive and highly significant (r = 0.56, P < 0.01) genetic correlation. A negative and highly significant (r = -0.68, P < 0.01) genetic correlation was observed between fruit length and fruit strength. No correlation was detected between yield and fruit weight (r = 0.04). Fruit number and fruit weight showed a negative and highly significant genetic correlation (r =-0.63, P < 0.01). It is suggested that the number of fruits per plant could be used as a selection criterium to obtain high yield eggplant cultivars.

Keywords : Solanum melongena; solanaceae; plant quality; fruit yield; genetic correlation.

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