The present paper compares the tea crop in Kenya and China from plant genetic improvement perspective with the associated plant improvement factors.

本文从植物遗传改良等因素比较了肯尼亚与中国的茶产业。

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Protoplast is an important system for plant genetic improvement, and the isolation of protoplast is an essential step for the protoplast manipulation.

原生质体是植物遗传改良的重要实验体系之一，而原生质体的分离是该体系的基础。

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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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It calls for genetic improvement of crops through conventional plant breeding and through direct genetic modification of crops.

VOA: standard.2009.10.21