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我国现正面临着新的农业科技革命的时代，而生物技术在农业上的应用正是这一时代的重要标志之一。就水稻品种改良而言，目前已在应用或正在研究应用的主要有细胞工程、基因工程和分子标记辅助选择等生物技术的分支领域。（一）细胞工程植物细胞工程是以植物细胞全能性学说为基
Our country is now facing a new era of agricultural science and technology revolution, and the application of biotechnology in agriculture is one of the important symbols of this era. In terms of rice variety improvement, there are currently branches of biotechnology that are currently being applied or being studied for applications such as cell engineering, genetic engineering and molecular marker-assisted selection. (A) Cell Engineering Plant cell engineering is based on the plant cell pluripotency theory