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不同湿度对昆 (Chenopodium Quinoa Willd.) 种子活力和氧化应激反应的影响. 在短期存储期间

Muhammad Hamzeh¹, Syed Riaz Ahmed², Iram Ijaz³

¹Pakistan Agricultural Research Council (PARC), Agricultural Research Institute, Jaffarabad, Pakistan.

BMC plant biology

|October 15, 2025

概括

将相对湿度 (RH) 降低到30%可以在储存期间显著保持麦种子的生命力和质量. 高RH (60%) 加快恶化,影响发芽和生化特征,而品种V6显示出更好的存储耐受性.

科学领域:

农业科学农业科学
种子生物学种子生物学
植物生理学植物生理学

背景情况:

昆种子的质量对农业至关重要,但存储条件如相对湿度 (RH) 和持续时间 (SD) 可以显著影响生存能力和生物化学成分.
了解这些影响对于维持种子库存和确保作物成功建立至关重要.

研究的目的:

调查不同相对湿度 (30%比60%) 和储存时间 (30,60,90天) 对子种子生存能力,生理特征和生物化学成分的影响.
为了确定昆的基因型,提高耐受性,在不同的RH条件下长期存储.

主要方法:

采用完全随机设计 (CRD) 的因数实验,采用两个RH水平和三个50°C的储存时间.
用发芽百分比和四 (TZ) 测试来评估种子的生存能力. 测量了诸如活力指数,电导率,形态参数和光合作用颜料等生理特征.
生物化学分析包括抗氧化酶活性 (SOD,POD,CAT,APX) 和proline积累. 统计分析包括ANOVA,主要组件分析 (PCA) 和热图.

主要成果:

较高的RH (60%) 显著加快了种子生存能力的丧失,减少了发芽和活力,增加了电导率,表明了膜损伤.
形态特征和光合作用色素在高RH下下降得更快. 变种V1表现最差,而V6表现出更好的弹性.
抗氧化酶活性和プロ林积累在30%RH以下是较高的,这表明适应性防御反应. 品种V6在90天后以30%的RH显示出显著的プロ林积累.

结论:

在高相对湿度 (60%) 下长时间储存昆种子严重损害了种子的质量,生存能力和生物化学完整性.
储存在30%的RH有效地保持了昆种子的生存能力和生物化学成分,为长期保存种子提供了一个实用的策略.
昆品种V6表现出优越的储存耐受性,使其成为长期种子保存计划的有希望的基因型.

关键词:

生物化学标记物生物化学标记物几天时间持续时间颜料颜料是一种颜料.奎诺亚是一种菜.相对湿度相对湿度

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