对白菜丝核菌叶腐病标样进行了鉴定及生物学特性研究。
The results showed that the pathogen of Chinese cabbage Rhizoctonia leaf rot was Rhizoctonia solani.
系统感染长叶车前花叶病毒的青菜叶片叶柄分别作冰冻切片，运用免疫酶标技术对叶片叶柄内的病毒进行显色定位。
Chinese cabbage leaf blade and leaf stalk of Brassica Chinensis systematically infected with Ribgrass Mosaic virus was separately made by the freezing cut transection.
文中建立了与分辨率标板图案相适应的傅里叶谱数学模型，并通过对傅里叶谱的理论计算和分析找出了标板图案分辨率值与功率谱图各次极大之间的关系。
The mathematical model of Fourier power spectrum is derived. The relations between the resolving power of the test chart and the critical maximum are defined through t…
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