ABSTRACT

The breeding of new cultivars is a powerful approach to increase both the quantity and quality of potato harvest per land unit. The aim of this research was to determine using multi-site testing the progress made by the genetic enhancement of potato in Sweden in the last 1.5 decades by comparing advanced breeding clones (T₄ upwards) bred in Sweden (Svensk potatisförädling hereafter) versus available released cultivars in Europe and grown in its Nordic Region. The multi-site testing results show that potato breeding based in Scandinavia offers to the growers of the Nordic Region of Europe cultivars for prevailing farming environments and end-user needs rather than relying, as happens today in the market, on foreign cultivars. These cultivars bred elsewhere are not always very suitable for the challenging Nordic agroecosystems, as shown by the results of the multi-site testing herein. Such an approach on relying on foreign cultivars may be advocated for not funding potato breeding in, and for Fennoscandia by those ignoring the results shown by this research.

摘要

培育新品种是提高单位土地马铃薯产量和质量的有效途径。本研究的目的是通过比较在瑞典（以下称为 Svensk potatisförädling）培育的高级育种克隆（T _4以上）与在欧洲可用并在其北欧地区种植的品种。多地点测试结果表明，斯堪的纳维亚地区的马铃薯育种为欧洲北欧地区的种植者提供了适合当前农业环境和最终用户需求的马铃薯品种，而不是像今天市场上那样依赖外国品种。这些在其他地方培育的品种并不总是非常适合具有挑战性的北欧农业生态系统，如本文多地点测试的结果所示。这种依赖外国品种的方法可能会被提倡不资助马铃薯育种，而那些忽视本研究显示的结果的人可能会支持 Fennoscandia。