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Position: Home > Articles > The Effect of Different Treatments on Seed Germination of Lithocarpus glabra Journal of Jinling Institute of Technology 2012,28 (3) 62-66

不同处理对石栎种子萌发率的影响

作  者:
童丽丽;王哲字;苏金环
单  位:
金陵科技学院园艺学院;南京林业大学森林资源与环境学院
关键词:
石栎;种子;不同处理;发芽率
摘  要:
为寻求打破带有种壳石栎种子的最佳处理方式及处理时间,采取了磨皮,剥皮,4°C、15°C、25°C恒温处理,98%H2SO4分别处理5min、30min,10%、20%、30%NaOH分别处理2.5h、3h、3.5h,1%、2%、4%、6%KNO3分别处理24h、48h、72h,100mg/L、200mg/L、300mg/L、400mg/L GA分别处理24h、48h的方法,研究各种不同的处理对石栎种子发芽率的影响。结果表明:25°C是石栎发芽的最适温度,未去种壳的石栎种子发芽率为44%,砂布磨皮的石栎种子的发芽率为50%,剥皮的石栎种子发芽率为96%;98%H2SO4、NaOH处理对带有种壳石栎种子的发芽没有多大的促进作用,但KNO3处理对带有种壳石栎种子的发芽有一定的促进作用,经4%KNO3处理24h,能使石栎种子的发芽率提高至90%;赤霉素是良好的促进种子萌发的激素,300mg/L的GA3处理24h都能使石栎种子的发芽率提高至90%。
译  名:
The Effect of Different Treatments on Seed Germination of Lithocarpus glabra
作  者:
TONG Li-li1,WANG Zhe-yu2,SU Jin-huan1(1.Jinling Institute of Technology,Nanjing 210038,China;2.Nanjing Forestry University,Nanjing 210037,China)
关键词:
Lithocarpus glaber;seed;different treatments;germination rate
摘  要:
To seek the optimum treatment method and time of breaking the hard shell of seeds of Lithocarpus glabra,we have adopted such methods as scraping seed coat,peeling off seed coat,in different treatments at 4°C,15°C,25°C constant temperatures,with H2SO4(98%) treating 5 or 30 minutes respectively,NaOH(10%,20%,30%) treating 2.5h,3h,and 3.5h respectively,KNO3(1%,2%,4%,6%) treating 48 or 72 hours respectively,GA3(100,200,300,400 mgL1) treating 24 h or 48 hours so as to explore their effects on the germination rate of Lithocarpus glabra respectively.The results show that 25°C is the optimum temperature for the germination of Lithocarpus glabra.The germination rate of the seeds untreated is 44%,and that of the seeds treated by scraping seed coat is 50% while that of peeling off seed coat is 96%.There are no obvious effects on germination in the treatment with 98% H2SO4and NaOH,but KNO3has some effect,and the germination of the seeds treated by 4% KNO3for 24 hour can reach 90%.GA3 is good for germination,and 300 mgL-1GA3treating the seeds for 24 hours can increase the germination rate to 90%.

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