论文部分内容阅读
中国是莲的分布和栽培中心,拥有世界上最多莲的品种资源,目前已经有近千个莲品种。长期以来,人们对莲品种的分类主要依据形态性状,如株形大小(大、中和小),花瓣多少(单瓣、重瓣、重台和千瓣),花色(白色系、粉色系、红色系和复色系)和雄蕊瓣化程度等。这种方法形象直观,操作简单,便于普及和推广。然而,形态鉴定存在一定局限性:(1)表型可塑性。品种的形态性状是由遗传物质与环境共同作用的结果,受环境条件变化等因素影响,会表现出一定变异。例如,将同一只藕栽培到不同规格的盆中,株形高度会
China is the distribution and cultivation center of lotus and has the largest variety of lotus resources in the world. At present, there are nearly a thousand species of lotus. For a long time, people’s classification of lotus species mainly based on morphological traits, such as the size of the plant (large, medium and small), the number of petals (single, double, heavy and thousands), color (white, pink, Red lines and complex color) and the degree of stamen flap. This method is intuitive image, easy to operate, easy to popularize and promote. However, there are some limitations of morphological identification: (1) phenotypic plasticity. The morphological traits of cultivars are the result of the interaction between genetic material and the environment. Due to the change of environmental conditions and other factors, some morphological variations will appear. For example, cultivate the same lotus into different sizes of pots, and the plant height will be high