Preliminary study on screening methods for in vitro resistance to Ginseng root rot

doi:10.14088/j.cnki.issn0439-8114.2022.11.014

Abstract

Abstract: The feasibility of the screening method for root rot resistance of Panax ginseng C. A. Meyer in vitro was discussed, and a rapid and efficient screening method for root rot resistance of Panax ginseng was preliminarily established. Two methods of in vitro leaf and root block inoculation were used in the experiment. The results showed that the incidence of the two methods was basically the same, and the in vitro leaf was more simple and convenient to observe than the root block screening. In the experiment, the positive and negative sides of ginseng leaves were inoculated with two inoculation methods, i. e., bacterial block and bacterial liquid, respectively. The results showed that the positive inoculation with bacterial block had a better incidence effect. Furthermore, the feasibility of the screening method for resistance of isolated leaves was preliminarily proved by the ginseng whisker backcross test. By inoculating different strains of ginseng, it was found that FS had the highest disease resistance and FX2 had the lowest disease resistance.

Key words: Panax ginseng C. A. Meyer, root rot, resistance screening, breeding

CLC Number:

S435.675

ZHANG Jing-jing, ZHANG Ning, HOU Wei, QU Zheng-yi, LI Ya-li, ZHENG Pei-he. Preliminary study on screening methods for in vitro resistance to Ginseng root rot[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(11): 76-79.

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