Heredity Analysis of FruitMa ture Period in Progenies from and Intraspecificand Interspecific Hibr idiza tion of V itis am u rensis Rupr. Heredity Analysis of FruitMa ture Period in Progenies from and Intraspecificand Interspecific Hibr idiza tion of V itis am u rensis Rupr. Effects of Shading on the Photosynthesis Characteristics and Fruit Traits of Laiweili Raspberry Observation on the Mature Period of Masson Pine Male Cones and Its Climatic Impact