To evaluate the yield potential of 96 ecotypes including 48 proso millet ( Panicum miliaceum ) and 48 foxtail millet ecotypes ( Setaria italica ) along with four check cultivars under well-watered and water stress conditions, a field experiment was carried out in the Agricultural Research Institute, Meybod, Yazd, Iran, during 2013–2014 using an incomplete block design with two replications. Based on the grain and forage yield, tolerance (TOL), stress susceptibility index (SSI), mean productivity (MP), harmonic mean (HM), geometric mean productivity (GMP) and stress tolerance index (STI) as drought tolerance indices were calculated and tolerant genotype selection index (TGSI) was conducted along with factor analysis. Among all the ecotypes and according to all indices, ecotypes S100, P10, S52, P97, S108, P20, S55, S104 and S18 were selected as the most drought-tolerant and grain yield potential. In addition, ecotypes P34, S104, P97, S39, S53, P102, P23, P5, S18, S13, S12, P92, and S3 were tolerant ecotypes with high potential forage yield. The results indicated that the ranking by TGSI was almost similar to the results obtained through the factor analysis. In addition, TGSI has had easier calculations than factor analysis and other methods. Therefore, it is suggested to explore the stress tolerant ecotypes in practical plant breeding.

中文翻译：

---

提高小米种质对水分胁迫耐受性的有效选择指标

为评价96个生态型，包括48个黍（Panicum miliaceum）和48个谷子（Setaria italica）以及4个对照品种在水分充足和水分胁迫条件下的产量潜力，在农业研究所进行了田间试验。 , Meybod, Yazd, Iran，在 2013-2014 年期间使用具有两次重复的不完整区组设计。基于粮食和牧草产量，耐旱性（TOL）、胁迫敏感性指数（SSI）、平均生产力（MP）、调和平均数（HM）、几何平均生产力（GMP）和胁迫耐受性指数（STI）作为耐旱性指标分别为计算和耐受基因型选择指数（TGSI）与因子分析一起进行。在所有生态型中，根据所有指标，生态型 S100、P10、S52、P97、S108、P20、S55、S104 和 S18 被选为最耐旱和粮食产量潜力的。此外，生态型 P34、S104、P97、S39、S53、P102、P23、P5、S18、S13、S12、P92 和 S3 是具有高潜在草料产量的耐受生态型。结果表明，TGSI的排名与因子分析的结果几乎相似。此外，TGSI 比因子分析和其他方法更容易计算。因此，建议在实际植物育种中探索抗逆生态型。TGSI 比因子分析和其他方法更容易计算。因此，建议在实际植物育种中探索抗逆生态型。TGSI 比因子分析和其他方法更容易计算。因此，建议在实际植物育种中探索抗逆生态型。