Effects of corolla on reproductive fitness of Mirabilis jalapa Genetic variation and reproductive fitness components of Gordonia acuminata in different communities Influences of Management Measures on the Seed Set and 1000-grain Weight of Ceratoides arborescens Genetic Dissection for the Reproductive Fitness of Liriodendron Derived from Offsprings of Complete-Diallel Crosses THE EFFECTS OF NECTAR ROBBING ON PLANTEPRODUCTION AND EVOLUTION