不同温度处理与储存时间对卷荚相思种子萌发的影响  

Effects of Different Temperature Treatments and Storage Time on Seed Germination of Acacia cincinnata

作　　者：何士宾 HE Shibin(Zhongxi State-owned Forest Farm in Zhangpu,Zhangzhou,Fujian 363200,China)

机构地区：[1]福建省漳浦中西国有林场,福建漳州363200

出　　处：《林业与环境科学》2024年第6期140-145,共6页Forestry and Environmental Science

基　　金：福建省种苗科技攻关(七期)项目(ZMGG-0709);福建省林业科技项目(2024FKJ29)。

摘　　要：为了探究不同温度处理下不同储存时间卷荚相思Acacia cincinnata种子的萌发状态,研究以储存时间为4、2和0 a(当年采集)的3种卷荚相思种子为试验材料,经25、40、60、80和100℃水温处理下浸泡24 h,对种子的发芽率、发芽势、发芽指数、胚根长及生物量指标进行分析。结果表明,不同温度处理下卷荚相思种子萌芽各指标均达到极显著差异(P<0.01),其中当年采集的种子经100℃水温处理后发芽率、发芽势和发芽指数均达到最大值,分别为73.2%、47.2%和7.32。整体而言,种子发芽率、发芽势和发芽指数随温度升高而上升,随储存时间的延长而下降。综合比较卷荚相思种子萌发的各项指标,以当年采集经100℃水温处理24 h的种子萌发效果最佳。To explore the germination state of Acacia cincinnata seeds in different storage time under different temperature treatments.Three kinds of A.cincinnata seeds stored for 4,2 and 0 years(the current year without storage)were used as experimental materials.The germination rate,germination potential,germination index,radicl length and biomass of the seeds were analyzed after soaking for 24 hours at different temperatures of 25,40,60,80,100℃.The results showed significant differences(P<0.01)in A.cincinnata seeds germination indexes under different temperature treatments.The germination rate,germination potential and germination index of seeds collected at 100℃in the same year were the highest,which were 73.2%,47.2%and 7.32,respectively.Overall,the seed germination rate,germination potential and germination index increased with the increase of temperature and decreased with the extension of storage time.The best seed germination effect was obtained when the seeds were collected in the current year and treated at 100℃water temperature for 24 hours.

关 键 词：卷荚相思种子 处理温度 储存时间 种子萌发 

分 类 号：S722.14[农业科学—林木遗传育种]