Research Of The Phenotypic Plasticity On Rosa Flowers Of Tow Species In The South Of Chang-bai Mountain Area

The phenotypic plasticity is an important realm in the current asexual ecology research of the plant kinds. This paper uses big sample and random sampling method to investigate 2 kinds of Rosa modular which grow in the south of Chang-bai mountain area. And this paper uses related analysis to analyze the relationship with the formal plastic coefficients and different direction factors and different time factors of the 2 types of the Rosa modular. This paper compared the formal plastic reaction of Rosa xanthina in 7 different directions and 4 different times, and compared the formal plastic reaction of Rosa rugosa in 4 different times. The result of this research is that:In the east, south, west, north, upper, middle and lower directions, there is a similar amount characteristics among Rosa xanthina.The variable coefficients of floral receptacles (flower and calyx) are all larger than the variable coefficients of the floral petal, and the variable coefficients of the floral petal are all larger than the variable coefficients of flowers. This indicates that there is a variable range of the modular of the flowers during the material accumulating process. The formal plasticity of floral receptacles (flower and calyx) is larger than the floral petal.There is a positive correlation between the sizes of floral diameter of Rosa xanthina and the coefficients of the floral petal and flowers in the east, south, west, north, upper, middle and lower directions. The best correlation is the exponential function. There are different b values in the increasing coefficients of the floral petal and flowers in different directions. This indicates that there are differences in growing speed of the coefficients of floral petal growing with the floral diameter in different directions. And there are differences in growing speed in the coefficients of flowers growing with the floral diameter in different directions. All the coefficients of flowers and floral petal have formal plasticity, but there is a same forming rule in the same changing of functions in different directions. There is a positive correlation between the coefficients of floral petal of Rosa xanthina and flowers of Rosa xanthina in different directions. The best correlation is the linear function. And there are different increasing b values of floral petal in different directions. This indicates that there are differences in the growing speed of the floral petal which grows with flowers. But there is a same forming rule in the same changing of functions in different directions.There is a positive correlation between the sizes of floral diameter of Rosa xanthina and the coefficients of flowers and floral petal in different times, and the best correlation is the exponential function. There are different b values in the increasing coefficients of the floral petal and flowers in different time. This indicates that there are differences in growing speed of the coefficients of floral petal growing with the floral diameter in different times. And there are differences in growing speed in the coefficients of flowers growing with the floral diameter in different times. All the coefficients of flowers and floral petal have formal plasticity, but there is a same forming rule in the same changing of functions in different times. There is a positive correlation between the coefficients of floral petal of Rosa xanthina and flowers of Rosa xanthina in different times. The best correlation is the linear function. And there are different increasing b values of floral petal in different times. This indicates that there are differences in the growing speed of the floral petal which grows with flowers. But there is a same forming rule in the same changing of functions in different times.There is a positive correlation between the sizes of floral diameter of Rosa rugosa and the coefficients of the floral petal, flowers and floral receptacles (flower and calyx) of Rosa rugosa in different times. The best correlation is the linear function. There are different b values in the increasing coefficients of the floral petal and flowers of Rosa rugosa in different times. This indicates that there are differences in growing speed of the coefficients of floral petal growing with the floral diameter in different time. And there are differences in growing speed in the coefficients of flowers growing with the floral diameter in different time. All the coefficients of flowers and floral petal have formal plasticity, but there is a same forming rule in the same changing of functions in different times. There is a positive correlation between the coefficients of floral petal of Rosa rugosa and floral receptacles of Rosa rugosa, and there is also a positive correlation between the coefficients of flowers of Rosa rugosa and the coefficients of floral receptacles of Rosa rugosa and floral petal of Rosa rugosa in different times. The best correlation is the linear function. And there are different increasing b values of floral petal, floral receptacles, and flowers of Rosa rugosa in different times. This indicates that there are differences in the growing speed of the floral petal and the floral receptacles which grow with flowers, and they all have formal plasticity. But there is a same forming rule in the same changing of functions in different times. And there are different increasing b values of floral receptacles growing with floral petal of Rosa rugosa in different times. This indicates that there are differences in the growing speed of the floral receptacles which grow with floral petal. But there is a same forming rule in the same changing of functions in different times.