Collection, storage and handling of plant genetic resources and their global distribution are essential components of international crop and tree improvement programmes.
植物遗传资源的收集、存储和处理以及它们在全球的分布，是国际作物和树木改良计划的重要成分。
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The current generation of Internet-connected consoles has already dipped a toe in the realm of digital distribution for games, but the next crop, including the PS4, will go even further.
Poor rains have brought crop failure to parts of Niger, but aid agencies say a closer watch and better reporting on conditions have led to improved distribution of relief supplies.