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Position: Home > Articles > Study on Seed Removing Dormancy and Germination Seedling Raising of Kalopauax septemlobus in Northeast China Forestry Science & Technology 2020 (2) 1-5

东北地区刺楸种子解除休眠及催芽育苗的研究

作  者:
韩友志
单  位:
辽宁省林业科学研究院
关键词:
刺楸;GA3;层积催芽;解除休眠;播种育苗
摘  要:
通过不同试验材料、GA_3应用和变温层积催芽对比试验,对刺楸种子解除休眠进行研究的结果表明:鲜种+GA_3+(15℃,30 d;冷冻,90 d;-4~0℃,90 d)处理方法发芽率达到90.2%,出苗率达到81.5%;气干种温水(72 h)+GA_3+(13~18℃,90 d;0~4℃,90 d)处理方法发芽率达到76.3%,出苗率达到66.4%。采用鲜种进行变温催芽处理对刺楸种子发芽率、出苗率和1年生苗木质量提高具有显著作用(p<0.01和p<0.05)。研究表明,刺楸种子属于形态-生理休眠类型,采用鲜种+GA_3+变温层积催芽的综合处理方法能有效解除刺楸种子休眠。
译  名:
Study on Seed Removing Dormancy and Germination Seedling Raising of Kalopauax septemlobus in Northeast China
作  者:
HAN Youzhi;Liaoning Academy of Forestry;
关键词:
Kalopauax septemlobus;;GA3;;Stratification;;Remove dormancy;;Seedling raising
摘  要:
Study on removing dormancy of Kalopauax septemlobus seeds,the comparative experiment of different test materials,GA_3 application and variable temperature stratification for germination promotion was carried out. The results show that:The germination rate reached 90.2%,seedling emergence rate reached81.5% by fresh seeds + GA_3+(15 ℃,30 days;freezing,90 days;-4 ℃~0 ℃,90 days);and the germination rate reached 76.3% and seedling emergence rate reached 66.4% by air-dried seed warm water(72 h) + GA_3+(13 ℃ ~18 ℃,90 d;0 ℃ ~4 ℃,90 d). The germination rate, seedling emergence rate and quality of one-year-old seedlings of Kalopauax septemlobus were significantly improved by using fresh seeds to accelerate germination at variable temperature(p<0.01 and p<0.05). Research shows,The seeds of Kalopauax septemlobus belong to the type of morphological-physiological dormancy,The comprehensive treatment of fresh seeds + GA_3+ Variable temperature stratification can effectively relieve the dormancy of Kalopauax septemlobus seeds.

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