不同外植体处理条件对“青杞1号”初代培养过程中组培苗的影响

以"青杞1号"嫩枝为试验材料,通过在不同时间段采集外植体、控制升汞浓度和消毒时间,比较分析了枸杞组培苗的启动时间、污染率和启动率。结果表明:最有利于"青杞1号"初代培养过程中组培苗生长的外植体处理条件为:取材日期7月1日,升汞浓度1.0 mg/L,消毒时间10 min。

业界动态

中国人才就业类网站排行榜(数据采集日期:2007年3月8日)大东网络“三大战役”颠覆网络安全市场格局随着互联网的迅速发展,网络信息安全存在的问题日益加剧。

教育要闻

陈至立强调:进一步加强网吧及网络游戏管理12月11日,国务委员陈至立在进一步加强网吧及网络游戏管理会议上强调,各地区。

Standardized pod collection time, pod length and pre-sowing treatment of Albizia lebbeck at terai zone of West Bengal, India

Three pod lengths （ 10 cm, 10–20 cm and 20 cm） and 13 pre-sowing treatments were considered with four dates of collection （9 February, 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 non-dormant, 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 thio-urea as a pre-treatment did not significantly enhanced seed germination rate, but its application in lower concentration （100 μL·L-1） resulted in better seedling growth and development.