浸泡时长及GA_(3)对砂生槐种子萌发的影响  

Effects of Soaking Time and GA_(3)on Seed Germination of Sophora moorcroftiana

作　　者：汪文涛 李振芳[3] 仁增康珠 杜超群[3] 张新叶[3] Wang Wentao;Li Zhenfang;Renzeng Kangzhu;Du Chaoqun;Zhang Xinye(Tibet Shannan Forestry and Grass land Bureau,Shannan 856000;Hubei Provincial National Forest Farm Workstation,Wuhan 430079;Hubei Academy of Forestry,Wuhan 430075)

机构地区：[1]西藏山南市林业和草原局,山南856000 [2]湖北省国有林场工作站,武汉430079 [3]湖北省林业科学研究院,武汉430075

出　　处：《湖北林业科技》2024年第1期18-22,共5页Hubei Forestry Science and Technology

基　　金：西藏山南市本级科技计划项目“山南主要造林树种选育与高效繁育技术研究”(SNSBJKJJHXM2023011)。

摘　　要：以砂生槐种子为材料,利用清水、300 mg·L^(-1)和600 mg·L^(-1)GA_(3)浸泡种子2 d、4 d和8 d,探讨不同处理对砂生槐种子萌发特性的影响。结果表明,随着浸泡时间的延长,砂生槐种子的发芽率有所提高,而且4~8 d的300 mg·L^(-1)GA_(3)浸种可显著提高砂生槐种子的发芽率,相比清水浸泡发芽率提高10%~15%。对于发芽势,清水、300 mg·L^(-1)及600 mg·L^(-1)3种处理在浸泡2 d和8 d后只有一个发芽势高峰,而浸泡4 d后有两个发芽势高峰。同时,方差分析结果表明,发芽率在9种不同处理间呈极显著差异,腐烂率呈显著差异,但硬实率在不同处理间没有显著差异。The study is to explore the effects of different treatments on the germination characteristics of Sophora moorcroftiana seeds,in which the seeds were soaked in water,300 mg·L^(-1)and 600 mg·L^(-1)GA_(3)for 2,4,and 8 days.The results showed that with the extension of soaking time,the germination rate of S.moorcroftiana seeds increased,and soaking with 300 mg·L^(-1)GA_(3)for 4-8 days can significantly improve the germination rate,which is 10%-15%higher than soaking with water.For germination-vigor,there was only one peak of germination-vigor after soaking for 2 days and 8 days in water,and GA_(3)300 mg·L^(-1)and 600 mg·L^(-1)treatments,while there were two peaks after soaking for 4 days.Meanwhile,the analysis of variance results showed that there were extremely significant differences in germination rate and decay rate among 9 different treatments,but there was no significant difference in hard seed rate among different treatments.

关 键 词：砂生槐 种子萌发 浸泡时长 GA_(3) 

分 类 号：S792.26[农业科学—林木遗传育种]