关键词: 水稻干尖线虫, 水稻干尖线虫, 锌指蛋白, 卵母细胞形成

Abstract: Lintao of Gansu Province, as an important plant base of Dahlia pinnata, got the leading position in D. pinnata breeding, extension and industry development. Meanwhile, Lintao D. pinnata had not only the widest cultivated area, more practitioners, own varieties system and overseas sales, but also been the protection products of Chinese National Geographical, that became the center of D. pinnata production and sale in China. However, it was found that the D. pinnata planting area in Lintao decreased, varieties resources lost seriously and industrial development went into worst statue in recent years, so did other areas in China. After data analyses and on-the-spot investigations, author summarized the cause of severe atrophy of D. pinnata industry: (1) reduction of the arable land and the employees; (2) backward facilities could not keep up with industrial development; (3) little product form led low additional value; (4) the lack of theoretical guidance limited the variety renewal; (5) low of protection awareness resulted in lost of new varieties. Based on above, author proposed some strategies for recovery of D. pinnata industry: (1) to strengthen D. pinnata breeding and variety protection; (2) to change the backward operation mode of single farmer unit; (3) to construct the modern agricultural facilities and logistics platform; (4) to develop new products by research on the varieties resources; (5) to hold mass flower show for driving D. pinnata industry development.