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Position: Home > Articles > Two Methods of Improving Germination Rate of Cerasus serrualta( Lindl. ) G. Don ex London Journal of Anhui Agricultural Sciences 2014 (13) 3835+3838

两种方法提高山樱花种子发芽率试验

作  者:
聂超仁;许小过;段庆明;李鹏
单  位:
武汉市园林科学研究所;武汉科发园林绿化有限公司
关键词:
山樱花;破皮;赤霉素;发芽率
摘  要:
[目的]探讨提高山樱花[Cerasus serrulata(Lindl.)G.Don ex London]种子发芽率的有效方法。[方法]采用机械破皮和赤霉素浸泡山樱花种子。机械破皮处理为:用剪刀剪破种子的外种皮,使种仁露出,分别用清水、2 g/L赤霉素浸泡破皮和没破皮的山樱花种子24h,然后在温度为20℃、湿度为80%的恒温箱中催芽。赤霉素浸泡处理为:山樱花种子沙藏90 d后,分别用1 000、2 000、3 000 mg/kg赤霉素及清水浸泡24 h,放在在恒温箱中催芽,温度为20℃,相对湿度80%。[结果]机械破皮和赤霉素浸泡均能提高其发芽率,破皮可使其提高到67.21%;用1 000、3 000 mg/kg赤霉素处理能使发芽率提高到77.19%、72.58%,但用1 000 mg/kg赤霉素处理的种子出芽后生长较快,而用3 000 mg/kg赤霉素处理的种子生长较慢,且生长点有黄花现象,说明赤霉素浓度过高会抑制幼苗生长。[结论]推荐使用1 000 mg/kg赤霉素浸泡山樱花种子。
译  名:
Two Methods of Improving Germination Rate of Cerasus serrualta( Lindl. ) G. Don ex London
作  者:
NIE Chao-ren;Wuhan Institute of Landscape Gardening;
关键词:
C.serrualta;;Hulling;;GA3;;Germination rate
摘  要:
[Objective]To explore effective methods of seed germination. [Method] Use mechanical hulling and steeping seeds in GA3. Mechanical hulling: cut the episperm of seeds,uncover the kernel,steep seeds with cut and complete episperm in clean water,2 g / L GA3 for 24 h,then germinate in the thermostat( 20 ℃,humidity 80%). GA3 treatment: place seeds in sands for 90 days,steep seeds in 1 000,2 000 and 3 000 mg / kg GA and clean water for 24 h,the germinate in the thermostat( 20 ℃,humidity 80%). [Result]Both mechanical hulling and GA3 treatment can improve the germination rate,hulling improves the rate to 67. 21%,GA3 treatment( 1 000,3 000 mg / kg) improve the rate to 77. 19% and 72. 58%,but seeds treated with 1 000 mg / kg GA3 grow faster,while the later grow slowly,yellow flowers appear on the growth points,i. e. higher concentration of GA3 inhibits growth of young seedlings. [Conclusion]Treatment with 1 000 mg / kg GA3 is recommended.

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