번식력이 우수한 진한 적색 비모란선인장 ‘Bulbit’ 품종 육성 = Breeding of Moon Cactus ‘Bulbit’ with Dark Red Color and Excellent Propagation

국문 초록 (Abstract)

농가 선호도가 높은 진한 적색 비모란선인장 ‘Bulbit’ 품종은 진한 적색 ‘Gohong’ 품종을 모본으로, 진한 적색 ‘0708047’ 계통을 부본으로 하여 2011년에 교배하여 육성된 교배종이다. 종자를 70% C2H5OH와 2% NaOCl로 멸균처리한 후, 100mL 삼각플라스크 0.1% 활성탄이 첨가된 Kyoto 배지에 파종하였다. 발아된 유묘는 기저부를 잘라 기내에서 배양된 어린 삼각주에 접목을 하고 동일한 배지가 첨가된 시험관에 치상하였다. 6개월 재배 후 온실로 옮겨서 순화과정을 거쳤으며, 기외에서 매년 접목을 하여 총 4번을 접목하여 2013년부터 2015년까지 총 3회에 걸쳐 생육특성을 조사하였다. ‘Bulbit’ 품종은 편원형의 모양과분홍색의 구색을 가지고 있다. 그리고 9 - 12개, 평균 10.4개의 능(rip), 5.2mm의 짧은 직립형 갈색 가시, 그리고 혹(tubercle)이돌출된 형태로 모구가 구성되어 있다. 정식 10개월 후 ‘Bulbit’ 품종의 구직경은 39.7mm였으며 자구는 모구와 같은 진한 적색으로 평균 18.3개가 생성되었다. 2015년 육성계통 평가회에서 ‘Bulbit’ 품종은 기호도 점수 4.5을 받았다. 2017년 6월 12일에이 품종은 국립종자원에 등록되었으며 종자산업법에 의해 품종보호(등록번호 6753)를 받게 되었다.

다국어 초록 (Multilingual Abstract)

The cultivar of moon cactus, ‘Bulbit’ with dark red color and many offsets, was bred by National Institute of Horticultural & Herbal Science (NIHHS) in 2015. For breeding the dark red cultivar with good propagation, ‘Gohong’ cultivar and ‘0708047’ the line with the similar color were crossed on August in 2011. Fruits were harvested after 2 months and seeds were separated from the peel. They were sterilized by C2H5OH 70% and NaOCl 2%, and then sowed in 100 mL mass flask filled with Kyoto medium + charcoal 0.1%. A young shoot was cut and root was removed, and then grafted into a young vine cactus, Hylocereus trigonus, in vitro. This grafted cactus was firstly planted into test tube with the same medium. After 6 months, a young moon cactus, only the scion, was secondly grafted into a vine cactus in vivo. The phenotypic characteristics of this were surveyed three times from 2013 to 2015, according to guidelines of Gymnocalycium mihanovichii. ‘Bulbit’ has flat round shape, and dark red skin (R 46B). This cultivar has average 10.4 ribs. The spine in the areole was brown color. The spine averagely grew to 5.2 mm in the straight shape. The shape of tubercle on the rib was projecting. This was 39.7 mm in diameter and averagely produced 18.3 offsets for 10 months from planting. The preference score of this was 4.5 on a five-point scale. On June 12th 2017, ‘Bulbit’ was registered (registration No. 6753) and is now protected by KoreanSeed Industry Law.

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