avirulent

Genetic variation of phosphoprotein gene of avirulent Newcastle disease virus of duck origin in China

我国几种野鸭和家鸭遗传多样性的SSR分析鸭源新城疫病毒P基因遗传变异分析

Sequence Analysis of the Netherlands Avirulent Strain of Chicken Anemia Virus

鸡贫血病毒荷兰弱毒株基因序列比较研究

Cloning and Sequence Analysis of NP, P and M Gene of Avirulent NDV Strain Changchun

新城疫病毒长春株NP、P、M蛋白基因的克隆与序列分析

By inoculated 12# B. mucronatus. avirulent isolates, the 4-month-old black pine seedlings the induced resistance in 1d and reach best in 3d;

用12~无毒拟松材线虫诱导接种四月生黑松苗，处理后1d就能产生诱导抗性，诱导间隔期为3d时诱抗效果达最好；

Virulent factors is an important marker to distinguish virulent strain and avirulent strain, however the virulent factors of HPS has not been elucidated.

毒力因子是区分致病与非致病菌株的重要标志物，目前，副猪嗜血杆菌的毒力因子尚未被阐明。

Rapid Differentiation of Gene Deleted Vaccine from Wildtype Isolates of Pseudorabies virus by Rapid molecular differentiation of virulent and avirulent strains of Newcastle disease virus with RT PCR technique

应用复合多聚酶链反应方法快速鉴别伪狂犬病弱毒疫苗与野毒用反转录&聚合酶链反应快速鉴别新城疫病毒

Because variety of reasons are popularized hard , replace the new-style and avirulent product of benzene preparation.

替代苯制剂的新型无毒产品由于种种原因难以推广.

Oryzae to thiazoles was possibly related to avirulent gene and cross-resistance existed between thiazole compounds.

水稻白叶枯病菌对噻唑类杀菌剂的敏感性可能与无毒基因有关。

A test of using RT-PCR means to distinguish the virulent and avirulent strains of NDV

RT-PCR法快速鉴别新城疫强弱毒株的试验

The avirulent strain of plant virus and its application ⅱ. the control of tomato mosaic disease with avirulent strain n_ ( 11) of TMV

植物病毒弱株系及其应用Ⅱ.烟花叶病毒番茄株弱株系N（11）对番茄的保护作用

Control of tomato mosaic virus disease with avirulent strain

用弱毒系防治番茄花叶病的效果

Control effects of different avirulent strains and different intervals are significantly different.

不同的非致病丝核菌株防治效果不同。

Molecular Biology Characteristics of Avirulent Newcastle Disease Virus

新城疫病毒弱毒株分子生物学特性的研究