녹비작물재배후 플라스틱필름 멀칭에 따른 가을감자의 더뎅이병 방제 및 수량특성 변화

宋昌吉 ( Song Chang-kil ),姜奉均 ( Kang Bong-kyoon ) 한국유기농업학회 2000 韓國有機農業學會誌 Vol.8 No.3

This experiment was conducted to investigate the changes of rate of infected common scab and yield characteristics of fall patato(Solanum tuberosum L.) where green manual crops had been previously cultivated, crushed and tilled and PㆍE transparent vinyl film had been mulched and tunneled to solar heating of soil from May 21. 1998 to July 28. 1998. The total yields of green manual crops which had been previousely cultivated were as followed order : pioneer 855F(64.3MT/ha), soybean(25.0MT/ha), red clover and orchardgrass. The average below-ground temperature at the depths of 5, 10 and 20cm were 54, 45 and 4 4V during the mulching period, respectively. The rate of infected area per potato tuber of common scab decreased by solar heating the soils with mulching after the soybean and red clover cultivation as with previous croppings. Plant height, SPAD(soil plant analysis development) reading, fresh weight of steins, and fall potato's tuber yields tended to increase by the cultivation of green manual crops and mulching of PㆍE film. Fall potato's tuber yields were remarkably affected in the plot of soybean, red clover and pioneer 855F+cultivation of fall potato. T-N, K and Ca contents of fall potato(stem and tuber) also tended to increase by the cultivation of green manual crops and mulching of PㆍE film. T-N, K and Ca contents of soil tended to increase after the cultivation of green manual crops and mulching of PㆍE film and then reduced to contents of soil before green manual planting after potato harvesting.

Effect of Soaking Seeds in the Bacillus velezensis GH1-13 Solution and Foliar Spray of Chlorella vulgaris on the Seed Potatoes Production

Kyoung-Hee Lee,Jong-Hun Lee,Hyun-Woo Choi,Deog-Bae Lee 한국토양비료학회 2021 한국토양비료학회지 Vol.54 No.4

This study was conducted to evaluate effect of microorganisms in the production of seed potatoes based on the mobility rate of disease of common scab and bacterial soft rot and yield of seed potatoes. Two kinds of seed potatoes, the soil culture and the hydroponic were soaked in the culture solution of Bacillus velezensis GH1-13 strains (Soaked GH1-13) and dried at dark room. Seed potatoes were sowed in the field and culture solution of Chorella vulgaris was sprayed on the potato plants at the fifth and the sixth week after sowing. Soaked GH1-13 caused to decrease by 16.5% in the mobility rate of common scab and by 1.0% in that of bacterial soft rot than the control. The chlorella spraying caused to reduce by 12.6% in that of common scab and lowered by 1.1% in that of the bacterial soft rot than the control in the soil cultured seed potatoes. The production population of 30 to 330 grams potatoes per ha, specification of seed potatoes, was more 5,000 ea by the soaked GH1-13 and more 2,666 ea by the chlorella spraying than the control in the soil culture seeds. That was more 555 ea by chlorella spraying than the control in the hydroponic seeds. In the cultivation of soil culture seed potatoes, the soaked GH1-13 caused to increase the yield of seed potatoes by 1,167 kg and spray chlorella caused to increase by 1,405 kg per ha with statistically significant difference. In the cultivation of hydroponic seed potatoes, spraying chlorella caused to increase the production of seed potatoes by 412 kg per ha.

In Vivo Screening for Biocontrol Agents (BCAs) against Streptomyces scabiei Causing Potato Common Scab

Lee, Hyang-Burm,Cho, Jong-Wun,Park, Dong-Jin,Li, Chang-Tian,Ko, Young-Hwan,Song, Jeong-Heub,Koh, Jeong-Sam,Kim, Bum-Joon,Kim, Chang-Jin The Korean Society of Plant Pathology 2004 Plant Pathology Journal Vol.20 No.2

Through in vitro screening for biocontrol agents (BCAs) against Streptomyces scabiei causing potato (Solanum tuberosum) common scab, 19 streptomycete and 17 fungal isolates with antagonistic activity were selected as BCA candidates. For the selection of BCA candidates which are highly resistant to 10 kinds of antibiotics or pesticides, chemical susceptibility testing was initially performed in vitro. A remarkable degree of variation in susceptibility to antibiotics or pesticides was observed among the isolates tested. Streptomycete A020645 isolate was highly resistant to all the tested chemicals except neomycin up to 5,000 ppm. On the other hand, out of 36 antagonistic microbes subjected to in vivo pot tests using cultivar Daejima, four streptomycete isolates namely, A020645, A010321, A010564, and A020973, showed high antagonistic activity with >60% and 55% control value, respectively, and high chemical resistance to 10 kinds of chemicals. Therefore, these isolates were selected as potential BCAs for the control of potato common scab.

A New Red Skinned Potato Cultivar, "Seohong" with Resistance to Common Scab and High Yield

Young Eun Park,Ji Hong Cho,Hyun Mook Cho,Jung Yun Yi,Hyo Won Seo,Young Gyu Lee,Yul Kyun Ahn,Hyung Ki Lim,Hyun Sook Kim,Seong Jin Choi 한국육종학회 2007 한국육종학회지 Vol.39 No.3

‘Seohong’ was bred within the potato breeding program of National Institute of Highland Agriculture (NIHA). It was originated from a cross made in 1997 between ‘Jashim’ as a female and 93K65-1 as a male parent. Seohong was evaluated as a seedling number 97S05-1 for tuber characteristics, growth and yielding ability from 2001 to 2002, and than this clone was renamed as Daegwan 1-82. This clone was evaluated in the regional yield trial and the disease resistance in the five locations for three years. Finally, this clone was named as ‘Seohong’ and registered a new recommended potato cultivar in 2006. This cultivar has a round, shallow eye depth, light red-skinned tuber characteristics and low to medium dry matter content. It showed high resistance to common scab (Streptomyces scabies) and potato leaf roll virus (PLRV), however it was susceptible to potato virus Y (PVY) and late blight (Phytophthora infestans). Its mean tuber yields from the regional yield trial and winter cropping trial were 12 and 49 percent higher than that of ‘Superior’, respectively.

A Common Scab Resistant and Double Cropping Potato Variety for Fresh Market: "Chudong"

Ji Hong Cho,Hyun Mook Cho,Young Eun Park,Jung Yoon Yi,Hyo Won Seo,Seung Yeul Kim,Young Il Hahm,Dong Man Park,Yeon Dong Cho 한국육종학회 2007 한국육종학회지 Vol.39 No.4

Lately, the autumn cropping areas of potato have been steadily increased to supply fresh potatoes all year round in Korea. Although "Dejima" is a main cultivar for autumn cropping, it is very susceptible to common scab (Streptomyces scabies) and show high frequency of physiological disorders such as knobs and cracking on tubers. "Chudong" was bred in 2002 for fresh table use from a cross between H83520-3 with short tuber dormancy and "Superior" with common scab resistance. It has attractive, round tuber shape with white skin and flesh colors. Its tuber dormant periods is 5 days longer than 65 days of "Dejima". Its average yields were 32.4 and 21.8 ton/ha at 90 days after planting in spring and autumn cropping of regional yield trials, respectively. It is more resistant to common scab and potato leaf roll virus and less susceptible to late blight (Phythophthora infestans) compared to "Dejima". However, it is susceptible to potato virus Y.

국내 감자 연작지대에서 분리한 더뎅이병원균의 특성

김주희,이왕휴 한국식물병리학회 1996 Plant Pathology Journal Vol.12 No.1

Streptomyces turgidiscabies에 의한 감자 더뎅이병

최용철,함영일,김점순,조원대,임춘근,박덕환 한국식물병리학회 1998 Plant Pathology Journal Vol.14 No.5

톱밥 및 요소의 투입이 감자 더뎅이병 병원균(Streptomyces scabiei) 및 감자 더뎅이병 이병도 지수에 미치는 영향

백계령,이정태,지삼녀 한국환경과학회 2023 한국환경과학회지 Vol.32 No.11

Potato common scab disease is caused by pathogens belonging to Streptomyces spp. and results in a serious yield loss worldwide. Despite decades of research aimed at disease management, a definitive control method remains undiscovered. This study aims to explore the correlation between the C/N ratio and urea application with potato common scab pathogen dynamics and disease severity. We applied sawdust with a high C/N ratio and urea into the soil prior to potato cropping, both in pot and field experiments. Disease severity assessments and quantification of the TxtB gene were conducted at the harvest stage. Furthermore, culture experiments were performed to assess the direct impact of urea on the pathogen. Our findings revealed that higher disease severity was correlated with a high C/N ratio application and pathogenic gene quantity. Urea exhibited a direct influence on S. scabiei activity, reducing the disease severity in pot experiments. However, the effects of urea application on disease suppression in the conductive field were inconclusive. Although the results of urea application experiments displayed inconsistencies between pot and field trials, urea worked as the control to suppress S. scabiei activity. Further investigations are needed under various field conditions to confirm these findings.

더뎅이병 저항성 감자 신품종 ‘제서’

김성용,안율균,김태균,강형식,송승운,김봉찬,강성근 한국육종학회 2013 한국육종학회지 Vol.45 No.4

신품종 ‘제서’는 제주특별자치도농업기술원 감자 육종프로 그램에 의해 육성되었다. 1999년부터 2001년 까지 ‘체세포잡 종’을 모본으로 ‘대지’를 화분친으로 하여 2회의 여교잡에 의 해 유래되었다. ‘제서’를 대상으로 2001년부터 2005년까지 괴경특성, 병 저항성, 생육 및 수량을 조사하였다. 또한 2년 동안 4개 지역에서 지역적응시험을 실시하였다. 이 품종의 괴 경특성은 원형, 얕은 눈의 깊이, 황색의 표피색과 짧은 휴면 기간을 갖고 있다. 또한 이 품종은 더뎅이병, 무름병, 및 감자 잎말림바이러스에 강한 저항성을 보였다. 그러나 감자 바이러 스 Y와 역병에는 감수성이었다. ‘제서’의 평균 수량은 2012 년 봄, 가을재배 결과 38.8 ton/ha로 ‘대지’의 수량보다 적었다. A new cultivar ‘Jeseo’ was bred in the potato breeding program of Jeju Special Self-governing Province Agricultural Research & Extension Services. It was originated from two backcrosses made in 1999 and 2001 between ‘somatic hybrid’ as a female and ‘Dejima’ as a male parents. The ‘Jeseo’ was evaluated as a seedling for tuber characteristics, disease resistance, growth and yielding ability from 2001 to 2005. This clone was evaluated in the regional yield trials at 4 locations for 2 years. The tuber characteristics of this cultivar have a round, shallow eye depth, yellow-skinned, and short dormant period. And also, it showed high resistant to potato common scab (Streptomyces scabies, S. turgidiscabie and S. acidiscabie), soft rot, and Potato leaf roll virus (PLRV). However, it was susceptible to Potato virus Y (PVY) and late blight (Phytophthora infastans). The mean tuber yield of ‘Jeseo’ according to the spring and fall cropping during the 2012 was 38.8 ton per hectare, which was lower than that of ‘Dejima’

껍질과 속색이 붉고 Anthocyanin 함량이 높은 감자 "홍영"

박영은,조지홍,조현묵,이정윤,서효원,정명근 한국육종학회 2009 한국육종학회지 Vol.41 No.4

"홍영"은 2003년 "대서" 품종과 AG34314 계통 간의 교잡후대에서 유래되었으며, 고령지농업연구소의 감자육종 프로그램을 거쳐 선발되었다. 2006년과 2007년 대관1-102호라는 계통명으로 지역적응시험을 수행하여 주요 생육특성, 괴경특성, 수량성 및 병해특성을 평가하였으며, 2007년 "홍영"으로 명명하여 국립종자관리원에 신품종으로 원하였다. "홍영" 감자는 모양이 둥글고 눈이 얕으며 껍질과 속이 모두 홍색이다. ha당 평균 수량은 37.4톤이 "Hongyoung" was bred within the potato breeding program of National Institute of Highland Agriculture (NIHA). It was originated from a cross made between Atlantic as a female and AG34314 as a male parent in 2003. "Hongyoung" was evaluated as a clone number Daegwan 1-102 for the growth and tuber characteristics, yielding ability, and resistance to major diseases in the regional yield trials from 2006 to 2007. Finally, this clone was renamed as "Hongyoung" and was presented to Korean Seed & Variety Service in 2007 for registration as a new potato cultivar. "Hongyoung" has a round shape, shallow eye depth, red skinned and fleshed tuber characteristics. Its mean tuber yields from the regional yield trials was 37.4 MT/ha, and it showed the highest yield in spring cropping. "Hongyoung" showed high resistance to common scab (Streptomyces scabies) and potato leaf roll virus (PLRV), however it was susceptible to both potato virus Y (PVY) and late blight (Phytophthora infestans). The dry matter content of "Hongyoung" was low to medium 17.7%, therefore it is suitable for table use. Its anthocyanin content was the highest in autumn cropping with 31.8 mg/100g fresh weight and it contained 3.6 times higher anthocyanin than the control, Jasim.