Abstract

PENA-LOMELI, A. et al. Genetic parameters of the husk tomato ( Physalis ixocarpa Brot.) CHF1 cultivar. Rev. Chapingo Ser.Hortic [online]. 2008, vol.14, n.1, pp.5-11. ISSN 2007-4034.

The objective of this research was to estimate the genetic parameters of the husk tomato (Physalis ixocarpa Brot.) CHF1-Chapingo cultivar. Two hundred maternal half sib families were evaluated under three environments, in a complete randomized block design with two replications, and 22 plants by experimental plot. The narrow sense heritability of the 13 studied traits varied between 37.1 and 57.8%; the genetic additive variation coefficient presented values between 8.2 and 24.4%; for the total yield, values were 37.5 and 10.4%. The fruit number and weight at the first harvest, and the total plant fruit number were the most important yield components. High additive genetic correlation absolute values were found for the total yield with: the first harvest yield (0.67), fruits per plant in the first harvest (0.50), total fruits per plant (0.58), fruit set number (0.38), and first stem bifurcation height (-0.49).

Keywords : tomatillo; additive variance; heritability; genetics correlations; selection.