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研究发现,近年南川百合资源呈明显下降趋势,评估为易危(VU)等级.以鳞茎为外植体进行芽的诱导、增殖培养,筛选出培养配方:MS+6-BA 1.4 mg/L+NAA 0.2 mg/L+白糖30 g/L+琼脂7.0 g/L, pH=5.8;壮苗、生根培养基:MS+NAA 0.3 mg/L+香蕉泥15 g/L+活性炭0.1%+白糖40 g/L, pH=5.8;可以实现南川百合快繁和资源保护. 相似文献
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目的:指导川党参产业化生产.方法:以2008年重庆市巫山县社会经济发展状况、川党参市场行情为基础,采用农业项目投资评估的方法,开展川党参生产(6.67 hm~2为例,r=10%)的经济分析.结果:估算投入32.05万元、投资利润率14%、NPV 9.53万元、IRR 37.9%.产量及就地销售价格的盈亏平衡点(动态)分别为2 655 kg/hm2、14.4元/kg,销售价格对NPV的影响最敏感.结论:川党参种植的经济、社会效益明显,但具一定市场风险.Abstract: To guide the industrialized production of Codonopsis tangshen Oliv.Method: On the basis of the social and economic development of Wushan county in 2008 and the market change of C.tang-shen, by the analytical method of agricultural project investment appraisal, the economic analysis of the planting project of C.tangshen(6.67 hm~2,r=10%) was carried out. Results: The total project invest- ment estimated is RMB 320 500, investment profit margin 14%, NPV 9.53 million rmb yuan, IRR 37.9%. The dynamic break-even point of yield and spot sale price is 2 653 kg/hm~2 and 14.4 yuan/kg, re- spectively. The effect of spot sale price on NPV is most sensitive. Conclusion: The social and economic benefits of the planting of C.tangshenare remarkable, but it runs some market risk. 相似文献
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摘要:【目的】为八角莲资源的可持续利用提供基础和科学依据。【方法】对八角莲进行人工辅助授粉、人工补种。【结果】经人工辅助授粉,庙坝石人山、松丰对窝山、槐坪山的八角莲结实率分别由8.1%、5.0%、2.5%提高到73.4%、91.6%、30.0%;人工补种八角莲栽培苗、种子育苗、组培苗定植苗、组培苗,成活率依次为96.7%、93.3%、50.0%、15.0%;定植一年,根部增重依次为80%、86.2%、103%、120%。【结论】人工辅助授粉明显提高了野生八角莲的结实率;人工补种方式增加了八角莲的种群数量及种群内个体数。 相似文献
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