关键词: 生态足迹, 生态足迹, 生态安全, 生态压力指数, 宝鸡市

Abstract:

Adapting to diversified natural environment in the long evolution process, wild rice has evolved rich genetic diversity and many superior characteristics including stresses tolerance, good quality and male sterility, which make wild rice the ideal genetic materials in rice breeding. The wild rice species in China mainly grow in ethical areas such as Yunnan, Guangxi and Guizhou. In fact, wild rice domestication and rice culturing have long been important components of ethical traditional culture. A lot of studies have been performed on evaluation of genetic resources, identification of excellent traits related genes and analysis of genetic diversity of wild rice in ethical areas. Some good characteristics related genes in wild rice have been introduced into the rice cultivars using the classic and modern breeding technologies, leading to elevated productivity and stress tolerance. With the advance of modern molecular biology, research and utilization of rice genetic resources in ethical area of China will be greatly deepened in future.