摘要
为了探索海南砂种子的最佳贮藏条件,分别研究了沙磨、赤霉素(GA3)处理、贮藏条件、贮藏时间对海南砂种子萌发率的影响。以当年采收的海南砂种子为试验材料,对其进行沙磨、GA3处理,并将种子分别在不同条件下贮藏,进行种子萌发试验,统计萌发率。研究结果表明:沙磨处理并不能显著提高海南砂种子的萌发率,但可促进GA3进入种子内部并发挥作用;GA3对海南砂种子萌发具有浓度效应,且80μmol/L GA3处理8 h效果较好,浓度过高则表现出抑制作用;阴室贮藏是海南砂种子的最佳贮藏方式,有利于种子后熟,最高萌发率可高至(97.78±3.84)%,最佳贮藏时间为8个月。该试验获得了海南砂种子的最佳贮藏条件,为推广海南砂播种育苗技术奠定了坚实的基础。
In order to explore the best storage condition of Amomum longiligulare T. L. Wu seeds, the effectsof sand grind, gibberellic acid（GA3） treatment, storage condition and storage time on seed germination rate of A. Longiligulare were studied. A. Longiligulare seeds which were harvested at the same year were treated bysand grind and GA3 soaking, and stored under different conditions. Germination experiments of A.Longiligulare seeds were carried out, and the germination rates were investigated. The results showed thatsand grind could not significantly improve the seed germination rate of A. Longiligulare, but could accelerateGA3 into the inside of the seeds. GA3 had concentration effect on seed germination rate of A. Longiligulare. Thebest germination rate was obtained by the treatment with 80 μmol/L GA3 for 8 h. The higher concentration ofGA3 showed inhibitory effect. Room temperature storage was the best storage condition, it was conducive to thepost-harvest ripening of A. Longiligulare seeds. The highest germination rate of seeds stored in roomtemperature was up to（97.78±3.84）%, but the storage time could not be more than eight months preferably.The best storage condition of A. Longiligulare seeds was obtained to lay a solid foundation for promoting thesowing and seedling technology of A. Longiligulare.
出处
《中国农学通报》
2015年第36期87-91,共5页
Chinese Agricultural Science Bulletin
基金
海南省产学研一体化专项资金关键技术关攻项目"降低阳春砂落果率的关键技术研究"(CXY20140017)
关键词
海南砂
沙磨
GA3
贮藏
A.Longiligulare
sand grind
GA3
storage
