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- 저자 : 안장순(Jang Soon Ahn) (검색결과 4 건)
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陸地棉과 亞細亞棉의 種間交雜에서 花粉發芽, 受精 및 種子 發育
Hong Jae Park(朴洪在),Kyung Soo Min(閔庚洙),Jang Soon Ahn(安奬淳) 한국육종학회 1997 한국육종학회지 Vol.29 No.1
Histological studies were carried out to investigate a period of pollen germination, pollen tube elongation, fertilization, endosperm and embryo development and fiber formation in Gossypium hirsutum, G. arboreum and their reciprocal crosses. Pollen germination started within 30 minutes after pollination in the selfings of G. hirsutum and G. arboreum, and G. arboreum×G. hirsutum and cross, but after 1 hour in G. hirsutum×G. arboreum cross. The fertilization of the egg took 24~30 hours in G. hirsutum selfings, 28~30 hours in G. arboreum selfings, 36~44 hours in G. hirsutum×G. arboreum cross and 28~36 hours in G. arboreum×G. hirsutum cross. Proembryos appeared 5 days after pollination in the selfings and embryos started to abort 10 days after pollination in the interspecific crossing. In the testa fiber, fiber cell began to grow in 24~48 hours after pollination, length of a matured fiber was 22~32mm and 19~22mm in Gossypium hirsutum and G. arboreum, respectively. The development of testa fiber was stopped to grow 7~10 days after pollination in Gossypium hirsutum×G. arboreum, and the length of fiber was 10~13mm. The ovule and embryo culture to obtain the interspecific hybrid plants between Gossypium hirsutum and G. arboreum should start 2 to 6 days after pollination, when endosperm degeneration initiates.
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글라디올러스(Gladiolus gandavensis Van Houtte)의 優良 種球生産技術開發에 關한 硏究(Ⅱ) : -輸入球의 栽培經過年數에 따른 生育 및 바이러스 感染程度-
김정근,안장순,박화성,김광수 全南大學校 農業科學技術硏究所 1994 農業科學技術硏究 Vol.29 No.-
본 연구는 글라디올러스 종구의 국내생산을 목적으로 plastic 무가온 하우스내에서 도입종구에 대한 재배경과년수별 생육 및 개화 반응을 검토하고 바이러스 감염정도를 비교분석코자 수행하였던 바 그 결과를 요약하면 다음과 같다. 재배경과년수가 증가함에 따라 출아율, 초장, 개화율, 화수장 및 화수당 꽃수는 재배경과 3년까지는 도입단년구와 유의적인 차이가 없었으나, 5년차구에서는 현저히 감소하였고, 출아율, 개화 소요일수, 엽수 및 엽폭에는 유의적인 차이는 없었다. 바이러스병 유사증상주율은 도입당년구가 15%, 재배 3년 경과구가 61.3%, 재배 5년 경과구 82.6%로 급격히 증가하였고 동정된 바이러스는 BYMV, TMV, CMV, TRSV였다. 도입당년구경에서도 virus병 유사증상주의 20∼62%에서 BYMV, CMV, TMV, TRSV가 검출되었고, 감염주의 즙액을 지표식물에 접종했을 때 명아주에서는 괴사증상, 담배와 강낭콩 및 천일홍에서는 모자이크 증상이 나타났다. 재배경과년수가 증가함에 따라 감염바이러스 검출빈도가 증가하였고 5년 재배된 구경에서는 이병주의 26∼100%까지 각종의 virus가 검출되었다. 이상과 같은 결과로 보아 국내생산 종구는 도입 후 3년까지는 절화재배종구로서 이용이 가능하나 자급용 종구생산을 위해서는 virus 무병우량 종구생산 기술과 생산된 우량종구의 유지보존 및 윤작에 의한 토양으로부터의 감염방지에 대한 보다 상세한 연구가 수행되어야 할 것이다. This study investigated, in order to establish a propagation method of gladiolus corms in Korea, the responses in plant growth, flowering characteristics and virus infection of the introduced gladiolus corms to the lapse of cultivated years under plastic house. The emergence rate, plant height, cut flower production, spike length and number of florets per spike of the introduced corsm were not changed until the fourth subculture, but reduced remarkably thereafter. Meanwhile, days to emergence and flowering, number of leaves per spike and leaf widty were little affected by the lapse of cultivated years. The proportion of plants showing the symptoms suspected as virus infection was 15% even in the year of introduction and increased to 16.3% in the third year's subculture and 82.6% in the fifth year's subculture. The viruses detected from the plants showing virus symptoms were identified as bean yellow mosaic virus(BYMV), tobacco mosaic virus(TMV), cucumber mosaic virus(CMV) and tomato ring spot virus(TRSV). Those viruses were detected from 20 to 62% of the plants showing virus symptoms even among the newly introduced corms. When the sap of the plants showing virus symptoms was inoculated to the index planrs, the Chenopodium showed necrosis, while tobacco, snap bean and Gomphrena showed mosaic symptoms. The proportion of plants, from which viruses were detected, increased as the lapse of years of cultivation, BYMV, TMV, CMV and TRSV were detected from 26 to 100% of the plants showing virus symptoms from the third year corms. The present results indicate that the gladiolus corms would be safe to use as planting material for cut flower production up to the third subculture from introduction. However, it needs further trials on the mass production technique of virus free corms, as well as maintenance and protection of the selected corms from deterioration by secondary infection.
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