能源植物麻疯树遗传改良国内研究进展

麻疯树作为一种具有发展潜力的生物能源物种,受到人们的广泛关注,但由于缺乏适宜的品种,限制了麻疯树的推广。为了使育种工作者对我国麻疯树遗传改良的研究进展充分了解,本文对我国麻疯树遗传改良的目标、种质资源的收集与评价、遗传性状特征的研究、常规育种和生物技术改良等方面进行详细阐述,并对麻疯树的商业化推广种植提出展望。

基于农户的能源作物种植成本收益及替代性研究——以云南省临沧市膏桐种植为例

以云南省临沧市膏桐种植为例,探讨农户参与膏桐种植的几种方式,重点分析农户在不同模式下的成本收益状况,并比较膏桐与其它农作物之间的替代关系。结果表明:目前种植膏桐的经济效益不高,但膏桐对山地作物有良好的替代性,未来发展有赖于种植模式的进一步优化;下游成品油的价格走势对能源作物的推广会带来系统风险。

小油桐籽提取液对作物种子萌发及幼苗生长的影响

研究不同浓度的小油桐籽水提取液及酒精提取液对‘贵杂110号’油菜、‘卓越’黑麦草及‘早麦10号’小麦种子萌发及幼苗生长的影响。结果表明,小油桐籽水提取液对3种作物种子发芽率、幼苗的芽长及根长有抑制作用,且随浓度提高抑制作用增强;酒精提取液对黑麦草与小麦的种子发芽、幼苗芽和根的生长有抑制作用,但特定浓度可促进油菜幼苗芽的生长。

Multi-Criteria Assessment of Biofuel Production in Small Islands

This paper discusses various policy alternatives for the implementation of a biofuel crop on an island scale. It adopts an integrated approach by carrying out Multi-Criteria Assessment, as well as using a Geographical Information System. The assessment is based on an interdisciplinary research project carried out by the University of La Laguna to evaluate the agricultural and chemical feasibility, and the socio-economic implications of the cultivation of Jatropha as a source of biofuel on one of the Canary Islands, Fuerteventura. A number of alternatives were analysed for growing Jatropha, and the results suggest that the best alternative involves using Typic Torrifluents soil and irrigation with reclaimed Recycled Urban Wastewater at 75% evapotranspiration cover.