phaeoplast是什么意思

用法例句

This paper reported the symptoms, pathogen and pathogenic mechanism of the leaf brown spot and its control methods and their effects for the improved varieties Kerman and Peters of Pistacia vera introduced in 1997—2006 in contrast with Xinjiang Pistacia vera.

1997—2006年研究了北京地区大棚和露地引进阿月浑子良种Kerman、Peters及对照新疆阿月浑子叶褐斑病的症状、病原菌、致病程度影响因子、防治措施和效果。