In the light of climate changes and global warming, as well as the rapid expansion in sugar beet (Beta vulgaris L.) cultivation in Egypt, the development of sugar beet varieties with improved tolerance to high temperature and deficit irrigation is of great importance. The objective of this study was to evaluate sugar beet genotypes under high temperatures and deficit irrigation conditions for further identification and selection of heat and drought tolerant genotypes. In the current study, a panel of 18 sugar beet breeding lines produced at the USDA–ARS–NWISRL, Kimberly, ID, and the commercial sugar beet cultivar Kawimera were evaluated for yield and quality under high temperature. Six promising lines in terms of yield and quality were further evaluated under both high temperature and deficit irrigation for two growing seasons.

中文翻译：

---

高温胁迫和亏缺灌溉下甜菜的遗传多样性

在气候变化和全球变暖，以及糖用甜菜中快速扩张的光（甜菜L.）在埃及种植，提高对甜菜的耐高温性和缺水灌溉的品种的开发非常重要。这项研究的目的是评估在高温和缺水条件下的甜菜基因型，以便进一步鉴定和选择耐热和耐旱的基因型。在当前的研究中，评估了由USDA–ARS–NWISRL，金伯利，内华达州和商业甜菜栽培品种Kawimera生产的18个甜菜育种系的高温下的产量和品质。在两个生长季节的高温和亏缺灌溉条件下，进一步评估了六个产量和质量有希望的品系。