论文部分内容阅读
引种是利用现有的品种资源解决生产上迫切需要新品种的一条简单易行又迅速有效的途径。引种不仅使现有品种直接用于生产,提高农作物产量,而且还可为育种工作提供丰富的种质资源,以便迅速而有效地选育新品种。多年的生产实践证明,要获得引种成功,必须注意以下几个问题。1.引种之前要弄清所引品种的生育特点和适应性。一个优良品种都有一定的生育特性和适宜的种植区域,引种时应考虑地理位置、气候特点及当地的生产条件。对品种的耐肥水性、抗逆性、增产潜力、品质、熟性等要做到心中有数。2.坚持引种、试验、示范、推广的路子。引种时应先少量引进试验后,对表现突出的再示范推广,防止“大调大出”现象,以免给农业生产造成不应有的损失。3.要掌握新品种的栽培技术,实行良种良法配套推广。每个品种都有一套
Introduction is an easy, quick and effective way to use the existing variety resources to solve the urgent need for new varieties in production. The introduction not only allows the existing varieties to be used directly for production and improves the crop yield, but also provides rich germplasm resources for breeding work in order to breed new varieties rapidly and effectively. Years of production practice has proved that in order to obtain the introduction of success, we must pay attention to the following questions. 1. Before the introduction of species to be clear about the fertility characteristics and adaptability. A good variety has certain fertility characteristics and suitable planting areas, the introduction should take into account the geographical location, climate characteristics and local production conditions. To breed tolerance of water resistance, resistance, yield potential, quality, maturity, etc. to be aware of. 2. Insist introduction, experiment, demonstration, promotion of the road. After the introduction of a small amount of introduction of the test, the promulgation of outstanding demonstrative promotion, to prevent “big big bigger ” phenomenon, so as to avoid undue losses to agricultural production. 3. To grasp the cultivation of new varieties of technology, the implementation of good varieties of good law to promote. Each breed has a set