低温处理对新疆黑果枸杞种子出苗的影响  

Effect of Low Temperature Treatment on Seed Emergence of Lycium dasystemum Pojark.

作　　者：孟庆峰[1] 岳增辉[1] 田北京 王振学[3] 米真如 刘洪冲 任丽华[1] 高秋美[1] 韩加坤 MENG Qing-feng;YUE Zeng-hui;TIAN Bei-jing(Jining Academy of Agricultural Sciences,Jining,Shandong 272031;Institute of Cash Crops,Shandong Academy of Agricultural Sciences,Jinan,Shandong 250100)

机构地区：[1]济宁市农业科学研究院,山东济宁272031 [2]山东省农业科学院经济作物研究所,山东济南250100 [3]邹城市农业技术推广站,山东邹城273500

出　　处：《安徽农业科学》2024年第9期30-33,共4页Journal of Anhui Agricultural Sciences

基　　金：山东省现代农业产业技术体系中草药体系项目(SDAIT-20)。

摘　　要：[目的]通过低温和高温2种温度环境对新疆黑果枸杞种子共同作用,对种子发芽率、启动日、发芽指数、发芽势进行研究,为其工厂化育苗提供数据支持。[方法]种子在5℃环境处理0~20 d,放入10~40℃温度环境测定种子发芽率等指标。[结果]低温处理①种子在T_(3)环境发芽率最高65.0%,比常温种子高77.8%;低温处理③种子在T_(4)环境启动速度最快,需要4 d,比常温种子快0.8 d,发芽指数也最高5.1,比常温种子高73%;低温处理④种子在T_(4)环境发芽势最高24%,比常温种子高33.3%;低温处理③、④种子在T_(1)低温环境可以打破种子休眠。[结论]种子低温处理后在较高的温度环境,可以打破种子休眠,显著提高黑果枸杞种子发芽率、启动速度、发芽势、发芽指数。[Objective]The effects of low temperature and high temperature on Lycium dasystemum Pojark.seeds were studied to provide data support for factory seedling cultivation.[Method]The seeds were treated at 5℃for 0-20 days,and the germination rate was measured at 10-40℃.[Result]The germination rate of seeds treated at low temperature①was 65.0%in T_(3)environment,77.8%higher than that of seeds treated at normal temperature.The seeds under low temperature③treatment had the fastest start-up speed in T_(4)environment,which took 4 days,0.8 days faster than normal temperature seeds,and the highest germination index was 5.1,73%higher than normal temperature seeds.The germination potential of seeds treated at low temperature④was up to 24%in T_(4)environment,33.3%higher than that at normal temperature.Low temperature treatment③,④seeds can break seed dormancy at low temperature T_(1).[Conclusion]After low temperature treatment,seed dormancy could be broken and germination rate,start-up rate,germination potential and germination index of Xinjiang Lycium barbarum seeds could be significantly improved.

关 键 词：新疆黑果枸杞 低温处理 发芽率 有效积温 

分 类 号：S567.19[农业科学—中草药栽培]