Ginger (Zingiber officinale Roscoe) is a rhizomatous plant with wide usage in the food, pharmaceutical, and cosmetic industries. The inclusion of ginger rhizomes in the home remedies for prophylaxis related to COVID-19 infection may have caused a sharp rise in global ginger demand that has exceeded supply. To meet this demand, there is a need to identify high yielding genotypes with desirable attributes. The objectives of this study were to characterize and identify morphological markers that are associated with high rhizome yields. Ten ginger genotypes were assessed for 2 yr for their yield and phytochemical and mineral compositions under a randomized complete block design with three replications. A hierarchical cluster analysis was performed on the genotypes based on eight morphological attributes and 15 phytoconstituent contents. The results showed three clusters and two outliers. The dendrogram identified cluster A with genotypes KD-2 and EN-1 as the highest rhizome yielder. The pseudo-stem diameter (.808), leaf width (.743), plant height (.722), and the number of leaves plant⁻¹ (.641) showed the highest correlation coefficients with the ginger rhizome yield. The path coefficient analysis showed that 70.6% of the contribution of the pseudo-stem diameter to the rhizome yield occurred through its indirect effect on the leaf width (47.2%) and plant height (23.4%). These markers should be considered in selecting high-yielding ginger genotypes for production.

中文翻译：

---

生姜种质资源分类及与根茎产量相关的形态标记鉴定

姜 ( Zingiber officinaleRoscoe) 是一种根茎植物，广泛用于食品、制药和化妆品行业。在预防 COVID-19 感染的家庭疗法中加入生姜根茎可能导致全球生姜需求急剧上升，已超过供应。为了满足这一需求，需要鉴定具有理想属性的高产基因型。本研究的目的是表征和鉴定与高根茎产量相关的形态学标记。在具有三次重复的随机完整区组设计下，对 10 种生姜基因型的产量、植物化学成分和矿物质成分进行了为期 2 年的评估。基于8个形态学属性和15个植物成分含量对基因型进行层次聚类分析。结果显示三个聚类和两个异常值。树状图将具有基因型 KD-2 和 EN-1 的簇 A 确定为最高的根茎产量。假茎直径 (.808)、叶宽 (.743)、株高 (.722) 和植株叶数^-1 (.641) 与生姜根茎产量的相关系数最高。通径系数分析表明，假茎粗径对根茎产量的贡献中有70.6%是通过其对叶宽（47.2%）和株高（23.4%）的间接影响实现的。在选择用于生产的高产生姜基因型时应考虑这些标记。