Development Status of New Plant Variety Protection and DUS Testing Variety Identification and Seed Test  by Peanut Pod Image Characteristics Classification Analysis for Italian Ryegrass DUS Testing Quantitative Traits Genetic Diversity Analysis of Japonica Rice Landraces (Oryza sativa L.) from Shanghai Based on DUS Testing Classification for Gerbera DUS Testing Quantitative Traits and Diversity Analysis of Mrphological Characteristic Stability and Importance of Morphological Characteristics in Example Varieties Based on DUS Test Development of a Guideline for the Conduct of Tests for Distinctness, Uniformity and Stability of Chaenomeles New Varieties Selection and Classification for Amaryllis DUS Testing Quantitative Traits