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首页> 美国政府科技报告 >Microbial Inputs in Coffee (Coffea arabica L) Production Systems, Southwestern Ethiopia
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Microbial Inputs in Coffee (Coffea arabica L) Production Systems, Southwestern Ethiopia

机译：埃塞俄比亚西南部咖啡（Coffea arabica L）生产系统中的微生物投入

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摘要

Arabica coffee is the key cash crop and the top mainstay to Ethiopian economy that demands sustainable production methods. Southwestern natural forests, where the current work was carried out, are believed to be the centre of origin and diversity for Coffea arabica and still harbour wild Arabica coffee that may serve as an important gene pool for future breeding. Cost reductions, sustanability and quality improvement are now the major precedences in coffee production systems and prompt organic growing of coffee. Thus, current developments in sustainability involve a rational exploitation of soil microbial activities that positively affect plant growth and the present work was instigated to look for this possibility. The composition of coffee shade tree species and density of arbuscular mycorrhizal fungi (AMF) spores as well as coffee-associated rhizobacteria in southwestern Ethiopia in different coffee production systems were investigated. The main purposes were (1) to systematically identify the dominant coffee shade tree species; and (2) to quantify and characterize populations of arbuscular mycorrhizal fungi with respect to spatial distribution; (3) to screen for beneficial rhizobacteria (microbial biofertilizers and biocontrol agents) particularly in the rhizosphere of coffee plants and (4) to characterize rhizobacterial isolates of particular interest using molecular tools (polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis and 16S rDNA gene sequencing).

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