以毛竹种子为材料,进行生活力、发芽率和相对电导率的测定,研究在不同温度条件下贮藏1 a左右种子活力的变化。结果表明:在不同温度保存条件下,毛竹种子的发芽率均先下降后升高,但就近1a的保存效果来看,种子发芽率没有发生明显变化,推测毛竹种子在贮藏过程中发生二次休眠。不同保存条件下毛竹种子的生活力与相对电导率呈负相关,与发芽率呈正相关。相对电导率和发芽率的负相关性较为明显,特别是在冷冻条件下,各指标相关性均较强。不同贮藏温度条件下毛竹种子相对电导率之间的差异最先表现出来,可能是反映毛竹种子质量的敏感指标。经过近1 a的贮藏,现有保存条件对毛竹种子的生活力和发芽率影响较小,其保存效果还需要随着贮藏时间的延长进一步研究。
The effects of temperature on physiological and biochemical characteristics of Moso(Phyllostachys heterocycla cv.pubescens) seeds were investigated during almost one year storage period.Seed vigor,germination percentage and the relative electrical conductivity were measured.The results showed that the seed germination percentage declined and then rose over the storage period when stored at different temperature.Overall there was no obvious difference in seed germination percentage.It is conferred that Moso ...