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| 1 | Effect of different pre-sowing treatments on seed germination percentage and growth performance of Acacia auriculiformis显示文摘Seed morphology,germination and seedlings growth of Acacia auriculiformis were studied.The experiment was conducted in the nursery of Forestry and Wood Technology Discipline,Khulna University,Bangladesh.Matured seeds of the species were collected from healthy trees of road side plantation from different areas of Khulna District,Bangladesh and treated with five pre-sowing treatments(control,immersion in cold water,immersion in hot water,scarification with sand paper and immersion in concentrated H2SO4).The average length,breadth and thickness were found to be(0.58±0.017) cm,(0.44±0.007) cm and(0.20±0.089) cm,respectively.Germination was conducted in polybags with a mixture of top soil,coconut husk,coarse sand,and fine sand in a ratio of 3:4:1:1.Results reveal that pre-sowing treatments influences the germination rates of seeds that significantly increase the percentage germination compared with those in control(43%) and cold water treatment(52%).The highest germination success rate was found 83% in hot water treatment followed by 78% in scarification with sand paper,and 75% with immersion in H2SO4.Germination started from 7 to 12 days and completed between 28 and 35 days period in all treatments.ANOVA showed the significant difference(p<0.05) among the treatments in seed germination,but no significant difference among treatment with regard to starting day,closing day and total germination period.In case of height and diameter growth,seedlings originated from the seeds with hot water treatment shows significantly higher in wet season(from May to July).Hot water treatment can be recommended on seed germination of the species in rural Bangladesh. | Md.Salim Azad Mizanur Rahman Manik Md.Shamin Hasan Md.Abdul Matin | 2011 | Journal of Forestry Research2011，22，2： | 10 |
| 2 | 播种预处理对苦楝种子萌发的影响(英文)显示文摘在孟加拉Khulna大学森林和木材技术学科苗圃,调查了预处理的苦楝种子的萌发情况。成熟的苦楝种子采自国家植物园内的健康植株,对种子进行了5 种处理(对照,冷水浸泡,热水浸泡,砂纸破皮和浓硫酸浸泡)。结果表明,除了冷水浸泡外,其它播种预处理的种子萌发率显著高于对照种子。砂纸破皮处理的种子萌发率最高(80%),浓硫酸浸泡和热水浸泡的种子萌发率分别是74%和69%。苦楝种子在第8~11天开始萌发,萌发周期是20~21天。方差分析表明,预处理显著影响种子萌发率,但对萌发周期没有显著影响。推荐用热水浸泡处理种植在孟加拉农村的苦楝种子促进萌发。图2表2参30。 | Md.Salim Azad Md.Zedan-Al-musa Md.Abdul Matin | 2010 | Journal of Forestry Research2010，21，2： | 0 |
| 3 | Functional relationships of nodulation response and biomass production at nursery stages of two fast-growing, leguminous-multipurpose tree species in Bangladesh: Albizia saman and Leucaena leucocephala显示文摘This study was carried out to assess the relationship of the status of nodulation(i.e., the number of nodules, their shape and size) in root and biomass production of plant growth parameters(i.e., number of leaves, root and shoot lengths, root biomass and shoot biomass) in Albizia saman and Leucaena leucocephala. The assessment started 60 days after seeding. The study revealed that nodulation response and biomass production in both species showed significant differences over time(p < 0.05) in all variables except in the root-shoot ratio(oven-dry) of L. leucocephala. The study also showed significant differences(p < 0.05) in nodule formation and biomass production at the end of the study period between the two species except in the number of nodules and leaves and the green root-shoot ratio. There were strong positive correlations between nodule formation and biomass production, i.e., the number of nodules and the age of plants, the number of nodules and leaves, as well as the number of nodules and biomass(root biomass and shoot biomass) in both species. The results obtained using principal component analysis(PCA) and correlation coefficients of the different characteristics of nodulation and biomass production were similar in both species. The PCA showed that shoot biomass(shoot green weight and shoot oven-dry weight) is positively correlated with PC1(with an eigenvalue of 7.50) and root length is positively correlated with PC2(with an eigenvalue of 0.19) in the case of A. saman. In the case of L. leucocephala, the PCA revealed that root biomass(root green weight and root oven-dry weight), shoot biomass and shoot length are also positively correlated with PC1, while nodule formation and the number of leaves are positively correlated with PC2(with an eigenvalue PC1 of 6.92 and PC2 of 0.49). | Md.Salim AZAD Samir MONDOL Md.Abdul MATIN | 2013 | Forestry Studies in China2013，15，4： | 0 |
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