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中文名:原始种 外文名:original species 所属学科:植物学 公布时间:2019年 |
原始种（original species）是2019年公布的植物学名词。 [1]
原始种定义
在一个地区中分布较为原始的种类。
原始种出处
《植物学名词》第二版。
中国原始品种遗传资源与水稻生产的实证研究——基于实质性派生品种制度视角
来自 知网
作者：唐力，陈超，庄道元
摘要：In China's plant variety protection system, the regulation on essentially derived variety has become a focus and its impacts on agricultural production need in-depth study. The focus of this article is that whether the improvement and utilization of original variety genetic resources can cause genetic unicity problem. It has studied the temporal and spatial variation of the contribution of original variety to the heredity of rice under the derived variety exemption system based on the provincial panel data of 21 main rice production areas in China during 1999-2009 and has analyzed the economic impacts of original variety genetic resources on rice production in China with C-D production function model. The conclusions are as follows: the mean of original resources genetic contribution to rice production in 1999-2009 was only 0.25, and the genetic unicity caused by original variety did not show increasing trend. The main objective of Chinese plant variety protection system is to enhance the enthusiasm for innovation. The restriction of original variety in the UPOV1991 text will increase the overall cost and uncertainty of innovation and is not conducive to improving the breeding efficiency. In addition, every 1% increase of original variety genetic resources contribution will result in 1.6% growth of the rice yield. Joining UPOV1991 text will be limited to innovations technology diffusion and increase the cost of innovative applications and may slow down the process of agricultural production. Therefore, attaching great importance to the creation and effective utilization of original innovation will help improving the agricultural technology efficiency and the production level. Moreover, the public research department should undertake basic research activities of original innovation in breeding role assignment; in the application of original innovation development strategy, the government should support the breeding research and establish the relevant protection policy.
关键词：实质性派生品种 原始品种 遗传资源 遗传贡献 水稻单产 中国 被引量：11 年份：2012
巴山松的原始育种材料研究
来自 知网
作者：张方秋
摘要：巴山松的分布,形态特征,叶绿 素,核酸含量,染色体组型,过氧化物同工酶及苗木生长量的研究表明,巴山松不仅在形态,生理学,生物化学特性上,而且在苗期的形态解剖及生长量上与油松均 有显著差异,在遗传基础上具有自身的独立性.因此,巴山松应作为一个独立的种.巴山松种内基因的相对分化量表明,不同产地间的变异较小,仅占7.5%,产 地内的变异则占92.5%.因此,巴山松的遗传改良应利用产地内的变异。
关键词：巴山松 育种 原始育种
DOI：CNKI:SUN:XBLX.0.1990-02-014 被引量：26 年份：1990