Potato is one the of world’s most important crops. It is grown primarily for human consumption but is also used to feed cattle and to produce alcohol and starch. In modern industry, potatoes are a major source of starch. Unpredictable growing conditions strongly influence the cultivation of starch potatoes. One of the best methods for dealing with unpredictable stresses, including those caused by climate change, is cultivation of stable and high yielding cultivars. In the present work, tuber yield and starch yield from a Polish post-registration series of field trials conducted in the years 2013–2016 were analyzed using three different linear mixed models, which can be associated with three different stability measures. It is shown that cultivar Pokusa was the highest yielding and the most stable cultivar in terms of tuber yield, while cultivar Kuras was the most stable and the highest starch yielding cultivar. Moreover, using mixed model factorial regression, it is shown that temperatures in June and August and total precipitation in August had significant influence on tuber yield in the analyzed series of field trials.

中文翻译：

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马铃薯中晚熟淀粉品种块茎产量和淀粉产量稳定性分析

马铃薯是世界上最重要的农作物之一。它主要用于人类消费，但也用于喂养牛和生产酒精和淀粉。在现代工业中，马铃薯是淀粉的主要来源。不可预测的生长条件强烈影响淀粉马铃薯的栽培。应对不可预测的压力（包括由气候变化引起的压力）的最佳方法之一是种植稳定和高产的品种。在目前的工作中，使用三种不同的线性混合模型分析了 2013-2016 年波兰注册后系列田间试验的块茎产量和淀粉产量，这些模型可以与三种不同的稳定性措施相关联。结果表明，就块茎产量而言，品种Pokusa是最高产和最稳定的品种，而品种 Kuras 是最稳定和最高淀粉产量的品种。此外，使用混合模型因子回归表明，在分析的系列田间试验中，6 月和 8 月的温度和 8 月的总降水量对块茎产量有显着影响。