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한국산(韓國産) 주요작물(主要作物)의 종자전염성(種子傳染性) 진균(眞菌)에 관(關)한 조사(調査)
유승헌,박종성,Yu, Seung Heon,Park, Jong Seong 충남대학교 농업과학연구소 1982 Korean Journal of Agricultural Science Vol.9 No.1
우리나라 주요작물(主要作物)의 종자전염균(種子傳染菌)에 대(對)한 기초자료(基礎資料)를 얻기 위하여 벼, 콩, 보리, 참깨와 시판중(市販中)인 12종(種)의 주요채소류(主要菜蔬類)에서 모두 144개(個)의 종자시료(種子試料)를 수집(收集)하여 종자건전검사(種子健全檢査)를 하였던 바 다음과 같은 결과(結果)를 얻었다. (1) 벼, 콩, 보리, 종자(種子)에서는 각각(各各) 18종(種), 15(種), 7(種)의 진균(眞菌)이 검출(檢出)되었다. 벼의 변색종자(變色種子)에서는 Epicoccum purpurascens, Pyricularia oryzae, Trichoconiella padwickii가 많이 검출(檢出)되었고, 콩종자(種子)에서는 탄저병균(炭疽病菌)인 Macrophomina phaseolina가 우리나라의 콩에서는 처음으로 검출(檢出)되었다. (2) 참깨종자(種子)에서는 12종(種)의 진균(眞菌)이 검출(檢出)되었으며 그 중(中) Alternaria속(屬)과 Corynespora cassiicola가 많이 검출(檢出)되었다. (3) 12종(種)의 시판(市販) 채소종자(菜蔬種子)에서는 모두 21종(種)의 진균(眞菌)이 검출(檢出)되었는데 특(特)히 Alternaria속(屬), Colletotrichum속(屬)과 Fusarium속(屬)이 많이 검출(檢出)되었다. 공시(供試)한 시판(市販) 채소종자(菜蔬種子)의 시료중(試料中)에는 각종(各種) 병원균(病原菌)에 심(甚)하게 오염(汚染)되어 낮은 발아율(發芽率)과 유묘감염(幼苗感染)을 일으키는 것이 있었다. One hundred and sixteen seed samples of 16 different crops were tested by routine seed health testing methods. Seeds of rice, soybean and barley were found to be associated with 18, 15 and 7 species of fungi, respectively. Discoloration and spotting of various kinds were observed in rice seeds. Epicoccum purpurascens, Pyricularia oryzae and Trichoconiella pedwickii were higher in these discoloured than in normal seeds of rice. Macrophomina phaseolina, the charcoal-rot fungus is a new record for soybean in Korea. Seeds of sesame were infected by 13 fungi Alternaria sesami, A. sesarmicola and Corynespora cassiicola were detected predominantly. Twenty one species of fungi were detected in seed samples of 12 commercial vegetable crops. Alternaria, Colletotrichum and Fusarium were found predominantly. Some seed samples of commercial vegetable crops were heavily infected with pathogenic fungi and showed heavy seed and seedling rot.
수도품종(水稻品種)의 파종기(播種期) 이동(移動)이 문고병(紋枯病) 발생(發生) 소장(消長)에 미치는 영향(影響)
유승헌,박종성,Yu, Seung-Hun,Park, Jong-Seong 충남대학교 농업과학연구소 1976 Korean Journal of Agricultural Science Vol.3 No.1
수도품종(水稻品種)의 파종기(播種期) 이동(移動)이 문고병(紋枯病) 발생(發生)에 미치는 영향(影響)을 조사(調査)하였던 바 다음과 같은 결과(結果)를 얻었다. 1). 이병경률(罹病莖率) 및 피해도(被害度)는 이앙기(移秧期)가 늦을수록 피해(被害)가 적었다. 2). 조생종(早生種)의 피해도(被害度)가 가장 크고 다음이 중생종(中生種)이며 만생종(晩生種)이 가장 적었다. 3). 7월(月) 28일(日) 조사(調査)한 이병경률(罹病莖率)은 통일계(統一系) 품종(品種)들이 Japonica계(系) 품종(品種)들보다 낮았으나 피해도(被害度)에는 유의성(有意性)이 없었다. 4). 피해도(被害度)는 출수기(出穗期)와 높은 상관(相關)을 보이고 있으며 이는 출수전(出穗前) 10일(日)부터 출수후(出水後) 30일(日)까지의 적산온도(積算溫度)와도 높은 상관(相關)을 보이고 있어, 수도생육후기(水稻生育後期)의 고온(高溫)이 문고병(紋枯病) 피해도(被害度)에 크게 작용(作用)하고 있음을 알 수 있다. This study was done to find out the effect of seeding seasons of rice varieties on the occurence of sheath blight caused by Corticium sasakii. The results obtained are summarized as follows; 1. The percentage of infected stems and susceptibilities to sheath blight wered ecreased as the transplanting dates were delayed. 2. The susceptibilities to sheath blight of early maturing varieties were high, medium maturing varieties were intermediate and late maturing varieties were least. 3. The percentages of infected stems of Indica X Japonica varieties checked on 28th July were lower than those of Japonica varieties, but the susceptibilities were not significant between them. 4. At all varieties, highly significant correlation was recognized between the susceptibilities and the heading dates. Also relatively high correlation was appeared between the susceptibilities and the accumulated temperatures from 10 days before heading date to 30 days after it. This indicates that the susceptibility was much influenced by high temperature of the latter part of the rice plants growth.
참깨의 種子傳染性 Alternaria sesami와 Corynespora cassiicola에 關하여
劉勝憲 충남대학교 농업과학연구소 1983 農業技術硏究報告 Vol.10 No.2
Out of 50 seed samples of Sesamum indicum L. tested, Alternaria sesami and Corynespora cassiicola were detected in 29 samples and 38 samples, respectively. Heavy infection of A. sesami and C. cassiicola caused seed rot and seedling blight on water agar as well as in pots. In case of light infection the seed germinated showing elongation of the radicle and hypocotyl, but soon light brown or dark brown lesions appeared at certain parts of the shoot and root where sporulation of the fungi was observed after prolonged incubation in moisture. Four seed disinfectants were compared for the control of seed-borne infection of A. sesami and C. cassiicola. Complete control of seed-borne infection of C. cassiicola was obtained by seed treatment with Benlate T and Homai and seed treatment with Busan 30 was found superior to control seed-borne infection of A. sesami.