Wang Ying, Yao Chunguang, He Jitian, Zhang Lei, Bai Jianming, Li Yanshan, Zhou Jinhua, Zhao Beilei, Li Xianping, Pan Zhechao, Yang Wanlin
Industrial Crops Research Institute, Potato Technology Innovation Center of Yunnan Province, Yunnan Academy of Agricultural Sciences, Kunming 650200, China.
Yunnan Provincial Academy of Food and Oil Sciences, Kunming 650033, China.
Foods. 2025 Apr 8;14(8):1298. doi: 10.3390/foods14081298.
This study focused on 48 landraces from Yunnan Province, with seven commercially bred varieties as controls. Descriptive analysis and variance analysis were employed to evaluate the landraces across various aspects, including agronomic traits, tuber characteristics, and quality attributes. The results indicated that compared with commercial varieties, landraces exhibited unique appearances with deeper eyes and smaller and irregularly shaped tubers. In terms of texture, landraces had greater firmness and poorer mealiness but possessed a richer potato flavor, resulting in higher overall scores than commercial varieties. The mineral content of landraces was slightly lower than that of commercial varieties but similar to that of Andean landraces. The starch from landraces demonstrated better thermal stability but was more prone to retrogradation. Textural properties showed that landraces had greater hardness, cohesiveness, springiness, and chewiness compared with commercial varieties, indicating a denser texture, poorer mealiness, greater firmness, and consistent results with the sensory evaluation. In summary, landraces represent crucial genetic resources in breeding programs. A comprehensive study of the sensory characteristics, agronomic traits, and mineral content of landraces is essential for effectively utilizing these resources to broaden the genetic base of potato germplasm.
本研究聚焦于来自云南省的48个地方品种，并以7个商业培育品种作为对照。采用描述性分析和方差分析，从农艺性状、块茎特征和品质属性等多个方面对地方品种进行评估。结果表明，与商业品种相比，地方品种外观独特，芽眼更深，块茎更小且形状不规则。在质地方面，地方品种质地更硬，粉糯性较差，但具有更浓郁的马铃薯风味，总体得分高于商业品种。地方品种的矿物质含量略低于商业品种，但与安第斯地方品种相似。地方品种的淀粉具有更好的热稳定性，但更易发生老化。质地特性表明，与商业品种相比，地方品种具有更高的硬度、内聚性、弹性和咀嚼性，表明其质地更致密，粉糯性较差，硬度更大，这与感官评价结果一致。总之，地方品种是育种计划中的关键遗传资源。全面研究地方品种的感官特性、农艺性状和矿物质含量，对于有效利用这些资源以拓宽马铃薯种质的遗传基础至关重要。
