| 印度,孟加拉西部的Terai地区的大叶合欢预处理及标准化豆荚采集时间和豆荚长度 |
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| 作者单位： | Department of Forestry, Uttar Banga Krishi Viswavidyalaya, Pundibari 736 165, Cooch Behar, West Bengal, India |
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| 摘 要： | 在孟加拉西部的Pundibari地区,研究在4个采集（豆荚）时间,3个采集豆荚长度（〈10cm,10-20cm和〉20cm）,以及进行的13种预处理对大叶合欢种苗生长和萌发率的影响。豆荚采集时间为2月19日,且没有任何预处理,大叶合欢种子萌发率为92.5%。这明确表明,在2月19日采集的种子具有非休眠,有活力和生理成熟的特性。从长度为10-20 cm豆荚剥离出的种子,2月19日播种,种苗生长良好。利用硫脲预处理种子后,种子的萌发率并没有表现出明显提高,但是当利用低浓度硫脲（100 μL·L-1）预处理种子后,有利于种苗生长。
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| 关 键 词： | 大叶合欢（Albizia lebbeck） 采集日期 豆荚长度 预处理 萌发 生长 |
Standardized pod collection time,pod length and pre-sowing treatment of <Emphasis Type="Italic">Albizia lebbeck</Emphasis> at terai zone of West Bengal,India |
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| Authors: | Suman Malla Gopal Shukla Sumit Chakravarty |
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| Institution: | Department of Forestry, Uttar Banga Krishi Viswavidyalaya, Pundibari- 736 165, Cooeh Behar, West Bengal, India |
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| Abstract: | Three pod lengths (＜ 10 cm, 10-20 cm and ＞ 20 cm) and 13pre-sowing treatments were considered with four dates of collection (9February, 19 February, 1 March and 11 March) to investigate their effect on germination rate and growth of seedlings of Albizia lebbeck (L.)Benth. at Pundibari, West Bengal, India. The best time of pod collection was on 19 February as the germination rate of the seeds collected on this date was 92.5% without requiring any pre-sowing treatments. This clearly indicated that the seeds collected on 19 February were nondormant, viable and physiologically mature. Significantly better seedling growth was also obtained when the seeds were sown on 19 February which was extracted from pods of length 10-20 cm. Application of thiourea as a pre-treatment did not significantly enhanced seed germination better seedling growth and development. |
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| Keywords: | Albizia lebbeck collection date pod length pre-sowing treatment germination growth |
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