81 Utilization of Heterosis in Plant Production 杂种优势在生产上的利用 1. What is Plant Heterosis? p. 117 2. Discovery and History of Heterosis Animals Horse x donkey, 1400 years ago, China Plants The emergent period Kolreuter(1761-1766: Hybrid Tobacco, Darwin(1860S ): Hybrid maize vigor Mendel(1860s): Pea, hybrid vigor Maize: Beal(1876): Varietal maize hybrids§1 Utilization of Heterosis in Plant Production 杂种优势在生产上的利用 1. What is Plant Heterosis? p. 117 2. Discovery and History of Heterosis Animals Horse x donkey, 1400 years ago, China Plants The Emergent Period Kolreuter(1761-1766): Hybrid Tobacco, Darwin(1860’s) : Hybrid maize vigor Mendel(1860’s) : Pea, hybrid vigor Maize: Beal(1876): Varietal maize hybrids