玉米种子超干贮藏最适含水量研究  

The Optimal Moisture Content for Ultra-Dry Storage of Maize Seeds

作　　者：严敏[1] 

机构地区：[1]山东省旱作农业技术重点实验室青岛农业大学农学与植物保护学院,青岛266109

出　　处：《中国粮油学报》2013年第10期71-73,共3页Journal of the Chinese Cereals and Oils Association

基　　金：国家自然科学基金(30900121)

摘　　要：种子超干贮藏作为保存植物种质资源的新技术具有广阔的应用前景。但不同类型、不同品种的种子超干贮藏的最适含水量不同。为了确定玉米种子超干贮藏的最适含水量,本研究采用硅胶干燥法对玉米种子进行超干处理,并经65℃老化处理1个月,通过发芽试验测定种子活力和生活力。结果表明,农大108和金海5号玉米种子超干贮藏的最适含水量分别为0.055 3和0.062 7 gH2O/gDW。2个玉米品种种子超干贮藏最适含水量均低于13%相对湿度的平衡水分,说明这2个玉米种子适合超干贮藏。As a major method for ex - situ conservation, storage of orthodox seed has commonly been adopted i0r the preservation of plant germplasm. The value of optimal water content for ultra - dry storage is generally in line with species. Determine the value of optimal water content for ultra - dry storage of maize. Maize （ Zea mays L. ） seeds were subjected to ultradry state via silica gel drying with aging for 1 m onth at 65 ℃The results of seed germination showed that the optimal moisture content of uhradry storage for Nongda 108 and Jinhai 5 were 0. 055 3 gH20/gDW and 0.062 7 gH20/gDW respectively. Both of the optimal moisture contents are lower than 13% equilibrium relative humidity, which indicates that the two cuhivars seeds are suited to ultradry storage.

关 键 词：玉米 超干贮藏 最适含水量 种子 

分 类 号：S339.33[农业科学—作物遗传育种]