Study on Quality Inspection and Storage Characteristics of Amomum villosum Lour.Seeds in Traditional Producing Areas
Objective To provide theoretical evidence for the seed storage and quality standard,an experiment was conducted to study the quality and the storage characteristics of the seeds of Amomum villosum Lour.from traditional producing areas.Methods With reference to Rules for Agricultural Seed Testing,the quality (including authenticity,one-thousand-grain weight,moisture content,viability,germination rate) of A momum villosum Lour.seeds from 9 populations in traditional producing areas were measured.Results In different populations,one-thousand-grain weight of the seeds which were dried naturally was within the range of 14.516~19.120 g,the moisture content was 11.46 %~ 19.20 %,the viability was 82.00 % ~ 95.03 %,and the viability of the seeds which were stored at 4 ℃ for 72 d were 51.33 % ~ 79.67 %.Seeds dried naturally germinated scarcely at initial time,but began to germinate after stored at 4 ℃ for one month.The germination rate of seeds of five populations(JZK,BT,LTJK,ODGK,YNML)reached the peak after stored for 3 months,and then dropped.At storage time for 9 months,the germination of the seeds almost disappeared.The germination rate of seeds of four populations(SZJC,YNSD,CCPL,YNXP) reached the peak after storage for 6 months,and still stayed a high level over 9 months.The germination rate of seeds processed by cold gibberellin soaking was higher than that processed by common-temperature hormone soaking (P <0.05).Conclusion The life span of Amomum villosum Lour.seeds is short.The seeds become ripening after stored at 4 ℃ for 3~6 months,and have a high viability.Cold gibberellin soaking can significantly improve the germination rate,and the quality of seeds varies obviously in different populations.