The research was carried out on two potato (Solanum tuberosum L.) varieties with different tolerance to drought stress. Both varieties were cultivated in various moisture conditions: No stress, which uses the natural atmospheric conditions prevailing during the growing season and supplemented with water using drip irrigation and two combinations of drought conditions: 40 days stress at tuberizations, and intermittent drought (3 stress periods of 7 days). After harvesting, the tubers were stored at two temperatures, that is, 5°C and 8°C, for 39, 67, 143 and 164 days. The main aim of the research was the evaluation of the reaction of two potato varieties differing in drought stress tolerance to the accumulation of sugars and the respiration rate of tubers. It was found that tubers of drought stress-sensitive variety (Cekin) accumulated more glucose and fructose than tubers of drought-resistant variety (Tajfun), regardless of the type of drought applied during the growing season. The applied drought, both constant and intermittent, resulted in an increase in the content of reducing sugars compared with the control conditions. After applying both types of drought during the vegetation period, the respiration rate increased during tuber storage. Larger changes were recorded in the case of an intermittent drought. At a higher storage temperature, in the variety resistant to drought stress, a decrease in glucose content was found after long-term storage, while in the sensitive variety, the content of this component increased, regardless of the moisture conditions during the growing season.

中文翻译：

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生长季节的干旱胁迫：两种对干旱敏感性不同的马铃薯品种在贮藏期间还原糖、淀粉含量和呼吸速率的变化

对两种马铃薯（Solanum tuberosum L.) 对干旱胁迫具有不同耐受性的品种。两个品种都在不同的水分条件下种植：无胁迫，利用生长季节盛行的自然大气条件，并通过滴灌和两种干旱条件组合补充水分：块茎时 40 天胁迫和间歇性干旱（3 个胁迫期7 天）。收获后，块茎分别在 5°C 和 8°C 两种温度下储存 39、67、143 和 164 天。该研究的主要目的是评估两个马铃薯品种对干旱胁迫耐受性不同对糖分积累和块茎呼吸速率的反应。发现干旱胁迫敏感品种（Cekin）的块茎比抗旱品种（Tajfun）的块茎积累更多的葡萄糖和果糖，无论生长季节采用何种干旱类型。与对照条件相比，持续和间歇性干旱导致还原糖含量增加。在植被期施加两种干旱后，块茎贮藏期间呼吸速率增加。在间歇性干旱的情况下记录到更大的变化。在较高的贮藏温度下，在抗旱品种中，长期贮藏后葡萄糖含量下降，而在敏感品种中，无论生长季节的水分条件如何，该成分的含量均有所增加。与对照条件相比，导致还原糖含量增加。在植被期施加两种干旱后，块茎贮藏期间呼吸速率增加。在间歇性干旱的情况下记录到更大的变化。在较高的贮藏温度下，在抗旱品种中，长期贮藏后葡萄糖含量下降，而在敏感品种中，无论生长季节的水分条件如何，该成分的含量均有所增加。与对照条件相比，导致还原糖含量增加。在植被期施加两种干旱后，块茎贮藏期间呼吸速率增加。在间歇性干旱的情况下记录到更大的变化。在较高的贮藏温度下，在抗旱品种中，长期贮藏后葡萄糖含量下降，而在敏感品种中，无论生长季节的水分条件如何，该成分的含量均有所增加。