基于隶属函数法的谷子类胡萝卜素抗旱性综合评价与筛选
Comprehensive Evaluation and Screening for Drought Resistance of Carotenoid-Rich Foxtail Millet Using the Fuzzy Membership Function Method
干旱胁迫是影响谷子产量的主要原因，严重威胁着我国粮食安全。发掘谷子的耐旱基因为提高谷子的耐旱性、减少干旱对谷子造成的影响提供了依据。本研究首先依据干旱情况下 62个谷子品种的存活率将它们划分成五个抗旱级别，随后为了筛选抗旱的营养品种，在每个抗旱级别中选出了类胡萝卜素含量较高的品种，进一步进行了谷子幼苗期的模拟干旱与拔节期的盆栽干旱实验，通过模糊数学隶属函数法综合抗氧化酶、渗透调节物质、离体叶片失水率等多项指标，评价了五个谷子品种的抗旱性。在每个抗旱级别各选一个叶酸或类胡萝卜素较高的品种，最终选出了黑枝谷、朝新201、沁州黄、白米谷、叶酸谷等营养品种，随后分别从离体叶片失水率、抗氧化酶系统、渗透调节物质三个方面评价了拔节期谷子的抗旱性，最终使用模糊数学模型隶属函数法综合评价了五个谷子营养品种的抗旱性。
农作物农业科学研究生物科学研究方法、生物科学研究技术遗传学植物学
干旱谷子抗氧化酶
张美萍,陕永杰,孔敏静.基于隶属函数法的谷子类胡萝卜素抗旱性综合评价与筛选[EB/OL].(2025-09-19)[2025-09-28].http://www.paper.edu.cn/releasepaper/content/202509-21.点此复制
Drought stress is a major factor affecting millet yield and poses a serious threat to food security in China. The exploration of drought-tolerant genes in millet provides a basis for improving millet\'s drought tolerance and reducing the impact of drought on millet. In this study, 62 millet varieties were first divided into five drought resistance grades based on their survival rates under drought conditions. Subsequently, to screen drought-resistant nutrient-rich varieties, varieties with high carotenoid or folate content were selected from each drought resistance grade. Further, simulated drought experiments at the seedling stage and potted drought experiments at the jointing stage of millet were conducted. The drought resistance of five millet varieties was evaluated by comprehensively considering multiple indicators such as antioxidant enzymes, osmotic adjustment substances, and water loss rate of detached leaves using the fuzzy mathematics membership function method. One variety with high folate or carotenoid content was selected from each drought resistance grade, and finally nutrient-rich varieties such as Heizhigu, Chaoxin 201, Qinzhouhuang, Baimigu, and Yesuangu were selected. Subsequently, the drought resistance of millet at the jointing stage was evaluated from three aspects: water loss rate of detached leaves, antioxidant enzyme system, and osmotic adjustment substances. Finally, the fuzzy mathematics model membership function method was used to comprehensively evaluate the drought resistance of the five nutrient-rich millet varieties.
DroughtMilletAntioxidant Enzymes
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