马铃薯原种是利用植株茎尖生长点培养所获得的种薯,所谓生长点就是人工培养生长点,将离体的茎尖分生组织培养成完整的植株。所谓原种,就是通过分离培养利用各种致使植物退化的病毒在植物体内分布不均的特点,将其很少侵染或不受侵染的部分分离出来,重新培养使其保持或恢复原来的种性,进而达到稳产高产的目的。在这方面,中国科学院北京植物研究所和微生物研究所为我们闯开了新路子,提供了宝贵经验。我场根据七七年繁育深眼窝无病毒原种的点滴体会,归纳了几个应注意的问题,供各地在扩大繁殖过程中参考。 Potato seed is the use of plant tip growth point cultivation obtained seed, the so-called growth point is the artificial growth point of cultivation, the isolated shoot tip meristem culture into a complete plant. The so-called original species, that is, through the use of various types of isolation and culture of plants caused by the degradation of the virus in the uneven distribution of plants in the characteristics of its little infested or uninfected part of the separation, re-culture to maintain or restore the original Species, and then achieve the purpose of stable and high yield. In this respect, the Beijing Institute of Botany and the Institute of Microbiology, Chinese Academy of Sciences, have opened up a new path for us and provided valuable experience. Our field based on the breeding of deep orbital virus-free seed in seven or seven years of bit by bit experience, summed up a few issues that should be noted for the expansion of reproduction throughout the reference.