Abstract: The inheritance of high temperature tolerance (HT) in eggplant was studied with 4 ×4 half-diallel crosses, which derived from four parents with different tolerance to high temperature. Two parents and their progeny of F₁ , F₂ and BC₁ involved in present experiment were simultaneously treated by high temperature in greenhouse and open field. HT index and ratios of fruit setting were respectively collected following Hayman’s procedure. The results showed that inheritance of HT in eggplant is of incomplete dominance that fits in with a model of additive-dominance , and additive effects play more important roles on HT than dominant effects do. Furthermore , selecting methods for improving HT of eggplant were suggested.

Key words: Eggplant (Solanum melongena L.), Tolerance to high temperature, Inheritance law