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大豆种质资源耐老化综合评价及筛选
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作者 杨帅 周若 +6 位作者 赵萌 张一超 谢建国 李广 王曙明 齐云峰 蒋洪蔚 《大豆科技》 2023年第3期15-23,共9页
种子老化是影响种子活力的重要因素,大豆种子活力影响出苗质量,与大豆高产和稳产密切相关。为筛选抗老化性强、抗衰老敏感的大豆品种,本研究通过高温高湿人工老化处理大豆种子,对346份大豆种质资源的耐老化性进行鉴定。通过分析参试品... 种子老化是影响种子活力的重要因素,大豆种子活力影响出苗质量,与大豆高产和稳产密切相关。为筛选抗老化性强、抗衰老敏感的大豆品种,本研究通过高温高湿人工老化处理大豆种子,对346份大豆种质资源的耐老化性进行鉴定。通过分析参试品种发芽率、发芽势、发芽指数指标,明确各指标间的差异性和关联性,采用隶属函数方法对大豆种质资源耐老化性进行全面评估。结果表明:人工老化处理后,各品种大豆种子发芽率、发芽势和发芽指数显著降低;发芽率、发芽势和发芽指数间呈显著正相关;隶属函数综合评价结果表明,346份大豆种质资源耐老化性存在不同程度差异;聚类分析可将品种分为3类:(1)耐老化型:元宝金、黑秣食豆和抚松黄大豆等61个品种耐老化性较强;(2)中间型:铁豆48、奎丰1号和辽豆24等137个品种耐老化性次之;(3)敏感型:吉育93、勃利大粒黄和吉育35等148个品种耐老化性较差。研究结果为耐老化大豆品种的选育提供了丰富种质资源材料和理论依据支撑。 展开更多
关键词 大豆 种子活力 老化胁迫 聚类分析
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Study on Effect of Drought Stress with PEG-6000 on Physiological and Biochemical Indicators in Kadsura coccinea 被引量:1
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作者 唐健民 漆小雪 +3 位作者 陈宗游 沈浩峰 高丽梅 杨雪 《Agricultural Science & Technology》 CAS 2016年第9期2059-2061,2095,共4页
[Objective] The aim was to research drought resistance and adaptation mechanisms of Kaclsura coccinea under different drought stresses. [Method] The seedlings of Kadsura coccinea growing one year were taken as materia... [Objective] The aim was to research drought resistance and adaptation mechanisms of Kaclsura coccinea under different drought stresses. [Method] The seedlings of Kadsura coccinea growing one year were taken as materials in order to investigate and analyze leaf SPAD value, relative water content (RWC), malonaldehyde (MAD), cell membrane permeability (RP), proline (PRO) and superoxide dismutase activity (SOD). [Result] As drought stress improved, leaf SPAD value and RWC were both diminishing and RWC fell remarkably; MAD, Pro, RP and SOD activity were increasing; MAD and RP grew significantly. [Conclusion] Kadsura coccinea is much sensitive to drought stress and will be affected if water loss is too much high. 展开更多
关键词 Kadsura coccinea PEG-6000 Drought stress Physiological and biochemical indicators
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