天然群落枯枝落叶浸提液与其它处理对伯乐树种子发芽的比较研究  

Comparative Study on Germination of Bretschneidara sinensis Seeds Treated with Solution Extracted from Forest Litter and Other Methods

作　　者：马冬雪[1] 刘仁林[2,3] 

机构地区：[1]河北政法职业学院园林系,河北石家庄050061 [2]赣南师范学院生命与环境科学学院,江西赣州341000 [3]江西农业大学园林与艺术学院,江西南昌330045

出　　处：《林业科学研究》2012年第5期632-637,共6页Forest Research

基　　金：江西省自然科学基金项目资助20114BAB204006

摘　　要：用天然群落枯枝落叶浸提液浸种与其它处理方法进行伯乐树种子发芽试验,试验分室内和大田萌发试验,室内又进行了不同浸提液、不同激素处理、不同温度处理对伯乐树种子发芽的影响。结果表明:(1)蒸馏水浸种发芽率>伯乐树群落枯枝落叶浸提液浸种发芽率>罗浮栲群落枯枝落叶浸提液浸种发芽率,但差异不大;其中蒸馏水处理的种子发芽率最高(69.2%)。(2)以200 mg·L-1GA3浸种12 h发芽率最高,达到80.0%。GA3浸种的伯乐树种子发芽率>蒸馏水浸种的发芽>IAA浸种的发芽率。(3)大田试验的发芽率与室内试验发芽率基本接近;其中酒精浸提液处理的种子发芽率较高,达70.4%。(4)伯乐树发芽最适宜温度是20～25℃。发芽开始后第10～26天为发芽高峰期;发芽可持续32天。(5)在20℃条件下第7—14天腐烂率较高;随着温度的升高,高腐烂率出现的时间推迟,但发芽率相对降低。Experiments of germination of Bretschneidara sinensis seeds were conducted by the methods of field and indoor experiments by which the seeds were soaked in different solutions extracted from late-leaves forest litter,or treated with different growth hormones,or treated under different temperatures.The results are as follows：（1）Based on comparison,there were differences in germination rate among different solutions extracted from forest litter,but it was not so obvious.The highest percentage（69.2%） of germination was made by distilled water.The order of germination rate is distilled watersolution extracted from forest litter of Bretschneidara sinensis communitiessolution extracted from forest litter of Castanopsis fabri communities.（2）According to the results of all the experiments,the solution of 200 mg·L-1 GA3 made the highest germination rate（80.0%） in which the seeds were soaked for 12 h.（3）The germination rate of nursery was very close to the experiment result made in indoor,but the highest percentage（70.4%） of germination is made by the alcohol solution extracted from forest litter of Bretschneidara sinensis communities.（4） Analysis of experiments showed that the optimal temperature for seed germination was 20℃~ 25℃ and the highest percentage of seeds germination appeared at the 10th day to 26th day;besides,the seed germinating continued for 32 days.（5） The rate of seed decay was the highest at the time 7th-14th day during germination,and the seed decay would be postponed with the temperature rising,but the germination rate would be also lower.

关 键 词：伯乐树种子 枯枝落叶浸提液处理 不同激素处理 萌发试验 

分 类 号：S723.1[农业科学—林木遗传育种]