黄芩种子超干和回湿方法研究

目的确定黄芩种子的最适超干水分和适宜回湿方法。方法本实验以黄芩种子为材料,将种子和硅胶按一定比例放在30℃干燥箱中恒温鼓风干燥,获得不同超干水分的黄芩种子,通过测定种子发芽率、发芽势等确定黄芩种子最适宜的超干水分。然后用6种不同回湿处理方法进行超干种子的适宜回湿方法研究。结果黄芩种子最适超干水分为3.6%,当超干水分为2.6%时种子活力显著下降。PEG30%的回湿方法可显著提高受到超干损伤后的种子活力。结论黄芩种子是可以通过超干来降低种子水分进行种质保存的。

Methods of ultra-dry and pre-humidification in Scutellaria baicalensis seeds

Objective To optimize the suitable method of ultra-try and pre-humidity for Scutellaria baicalensis seeds. Methods Taking S. baicalensis seeds as experimental materials, the seeds were dried by silica gel in a certain proportion on the constant temperature 30 C in the desicator to obtain the seeds of S. baicalensis with various ultra dried moisture The proper moisture of ultra dry for S. baicalensis seeds was evaluated by measuring the germination percentage, germination energy, etc. The optimized pre-humidity was studied by six kinds of pre-humidifications. Results The optimum ultra-dry moisture of S. baicalen- sis seeds was 3.6%. The viability of S. baicalensis seeds decreased significantly while the ultra-dry moisture was 2.6%. The viability of S. baicalensis seeds damaged by ultra-dry was improved by PEC 30% prehumidification. Conclusion The S. baicalensis seeds can be kept in a good quality by reducing the moisture with the ultra-dry method.