Enhancement of Seed Dehiscence by Seed Treatment withTalaromyces flavusGG01 and GG04 in Ginseng (Panax ginseng).
Seed dehiscence of ginseng (Panax ginsengC. A. Mayer) is affected by moisture, temperature, storage conditions and microbes. Several microbes were isolated from completely dehisced seed coat of ginseng cultivars, Chunpoong and Younpoong at Gumsan, Korea. We investigated the potential of fiveTalaromyces flavusisolates from the dehiscence of ginseng seed in four traditional stratification facilities. The isolates showed antagonistic activities against fungal plant pathogens, such asCylindrocarpon destructans,Fusarium oxysporum,Rhizoctonia solani,Sclerotinia nivalis,Botrytis cinerea, andPhytophthora capsici. The dehiscence ratios of ginseng seed increased more than 33% by treatment ofT. flavusGG01, GG02, GG04, GG12, and GG23 in comparison to control (28%). Among the treatments, the reformulating treatment ofT. flavusisolates GG01 and GG04 showed the highest of stratification ratio of ginseng seed. After 16 weeks, the reformulating treatment ofT. flavusisolates GG01 and GG04 significantly enhanced dehiscence of ginseng seed by about 81% compared to the untreated control. The candidate's treatment ofT. flavusGG01 and GG04 showed the highest decreasing rate of 93% in seed coat hardness for 112 days in dehiscence period. The results suggested that the pre-inoculation ofT. flavusGG01 and GG04 found to be very effective applications in improving dehiscence and germination of ginseng seed.
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Min-Jeong
MJ
Kim
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Chang-Ki
CK
Shim
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Yong-Ki
YK
Kim
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Sung-Jun
SJ
Hong
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Jong-Ho
JH
Park
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Eun-Jung
EJ
Han
Organic Agriculture Division, National Institute of Agricultural Sciences, Rural Development of Administration, Wanju 55365, Korea.
Seok-Cheol
SC
Kim
Panax ginseng; Talaromyces flavus; antifungal activity; dehiscence