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        검색결과 3

        1.
        2014.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The currently cultivated varieties of moth orchid flowers have weak or no fragrance and the plant requires high temperatures for cultivation. In order to develop a new variety of orchid that is psychrophilic and fragrant, intergeneric cross between wild wind orchids and moth orchids was performed. In 2009, To obtain intergeneric hybrids from Sedirea japonicum and Neofinetia falcata with moth orchids, artificial crosses with a total of 160 combinations were performed. Most of the cross combinations failed due to crossincompatibility after intergeneric crosses, with no pod formation, premature pod dropping after pod formation, and pod formation that did not produce seeds. From among these, the crosses that formed normal seeds and germinated to produce viable plants included Doritis pulcherrima × S. japonicum, N. falcata × D. pulcherrima, and N. falcata × P. equestris. From the hybrid specimens obtained through these crosses, 2 superior lines (819-3B and K9256) were selected based on their floral morphology, number of flowers, hardiness, and fragrance. Comparative analyses of the morphological and chromosomal traits were performed between the selected hybrid specimens and their parents. The flower and inflorescence characteristics of the selected hybrids exhibited intermediary traits of both the parents; however, more traits from the moth orchids were inherited. For pollinia traits, both 819-3B and K9256 specimens exhibited intermediate forms of their parents in terms of their shape and size. In the case of 819-3B specimen, a high degree of trait similarity with that of D. pulcherrima was observed; whereas, K9256 specimen showed lobes similar to that of P. equestris. The ploidy of moth orchid, S. japonicum, and N. falcata used for crosses was diploid, as determined by microscopic examination and ploidy analysis. The microscopic examination of chromosomes from the intergeneric hybrid pollens revealed mutation of the chromosome count among different specimens as well as irregular chromosome separation. For the production of next-generation progeny using the obtained hybrids, back-cross was performed; however, most of the progeny obtained were sterile and, among the 12 back-crosses, pod formation was noted in S. japonicum × 819-3B and 819-3B × S. japonicum crosses only.
        4,000원
        2.
        2014.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        국화 ‘Amber’는 경남농업기술원 화훼연구소에서 2010년에 육성한 스프레이 국화 신품종으로 2006년도에 복색 홑꽃형의 스프레이 국화 ‘Delmont’ 품종을 모본, 성장세가 좋은 복색 홑꽃형 스프레이 국화 ‘Moulin Rouge’품종을 부본으로 교배하여 육성하였다. 2007에서 2009년까지 춘계 억제재배와 하계 촉성재배를 포함하는 특성검정을 통해 최종적으로 ‘Amber’를 육성하였다. ‘Amber’품종의 자연개화기는 10월 31일이며, 전조와 차광처리에의한 일장조절에 의해 연중 생산이 가능하다. 이 품종은복색 꽃잎을 가진 홑꽃형으로 성장세가 매우 좋고 개화반응주기는 7주이다. 가을재배에 있어서 화경은 5.5cm, 본당 착화수가 11.2개이고, 절화수명은 26.8일이었다. 춘계차광재배에서의 단일처리 후 개화소요일수가 49일이었다.이 품종은 흰녹병에 중도저항성을 나타내고 있으며, 대조품종에 비해 기호도도 높았다.
        4,000원