关键词: 改良CTAB, 改良CTAB, 木薯, 基因组DNA

Abstract:

Seed is one of the key elements in the production and development of agriculture. Finding the main factor of dominant species of local farmers and guiding the farmers orderly update. Given full role to the rice varieties in the production and development of agriculture, through which would not only enhance rice production and quality, but also increased farmers income. In this paper, it surveyed 144 households of the rice farmers in three township of the main producing areas of double cropping rice in Hunan Province, summarized the external dominant factor that affect the households update behavior of the rice varieties, and used of three Logistic model for the further empirical analysis on the internal factors. Based on the results of investigation and analysis, it was think that agricultural extension agencies still played an important role in guiding farmers to update the varieties, and farmers’ accumulated cultivation habits is one of the important factors, and thus proposed the corresponding countermeasures.