摘要
Albizia saman （Jacq.） F. Muell. commonly known as rain tree seeds were treated with five pre-sowing treatments to study the effect of pre-sowing treatments on germination and initial seedling development in the nursery.The experiment was established in the nursery of the Institute of Forestry and Environmental Sciences.University of Chittagong, Chittagong, Bangladesh. Results revealed that Nail clipping in one side of the seed （at the distal end of the seed） （T4） provides the highest （50%） seed germination. The second highest germination （42%） was obtained for the seeds treated with immersion in cold water for 24 h （T1）. Germination was completely inhibited when the seeds immersed in boiled water for 30 s followed in cold water soaking for 24 h. Other germination parameter and initial morphological growth and biomass production of the seedlings was also higher for the treatments T4and Ti in comparison to the control （Ta）treatment. Pre-sowing treatments of T4 e.g. Nail clipping in one side of the seed （at the distal end of the seed） and T1 （Seeds immersed in cold water for 24 h） may be recommended for maximum germination and initial vigorous seedlings growth of Albizia sarnan in the nursery.
Albizia saman (Jacq ) F。Muell。通常作为雨知道树种子与五预先播种被对待学习预先播种的效果的处理在托儿所的萌芽和起始的幼苗开发上的处理。实验在林地和环境科学的研究所的托儿所被建立， Chittagong 的大学， Chittagong，孟加拉国。结果揭示了在种子的一个方面抓紧的那根钉子(在 theseed 的远侧的结束)(T_4 ) 提供(50%) 最高播种萌芽。第二最高的萌芽(42%) 为为 24 h (T_1 ) 在冷水里与沉浸对待的种子被获得。当为 30 s 在煮的水里沉浸的种子在为 24 h 浸泡的冷水里列在后面时，萌芽完全被禁止。另外的萌芽参数和起始的词法生长和幼苗的生物资源生产与控制(T_0 ) 相比为处理 T_4 和 T_1 也是更高的处理。例如钉子在一个抓紧的 T_4 的预先播种的处理种子站在一起(在种子的远侧的结束) 并且 T_1 (为 24 h 在冷水里沉浸的种子) 可以在托儿所为最大的萌芽和 Albizia saman 的起始的精力旺盛的幼苗生长被推荐。
