超低含水量的花生种子贮藏研究

Studies on storage of peanut seeds of excessively Iow moisture content

试验以花生种子为材料,硅胶作干燥剂,超干后的花生种子含水量为3％,2％,1％,分别密封贮于O℃,室温,45℃。结果表明:超干后立即发芽,各级超低含水量种子生活力与原始含水量的生活力没有明显差异,种子在室内回湿后发芽,各级超低含水量种子生活力与原始的亦无明显差异,超干燥至1％水分,花生种子无干燥损伤。回湿后的活力指数比不回湿的高,回湿可以提高超低含水量的种子活力。贮存10,20,30个月后测定生活力表明:最耐贮存寿命最长的是2％含水量的种子,耐贮程度排列次序是2％>3％>1％>4.4％。花生种子超低含水量的临界水分是2％,室温贮存的种子最佳含水量3％～2％,0℃贮存的种子最佳含水量4.4％～3％。

Seeds of peanut (AracAis hypogaea) were dried using silica gel as desiccating agent to study ultradry in this experiment. After their moisture content(MC) were gained at 3, 2. and 1%, seeds were stored hermetically at 0℃, room temperature (RT) and 45℃, respectively. The results Showed that there are no significant difference between the viability of seeds with various MC and that of control if seeds were prehumidified. No drying injury will occur in the peanut seeds even it is dried to 1% MC. the vigor inde...