Characterization of a new white variety "Baengno" developed by crossing with selected lines adaptable to elevated-temperature in Flammulina velutipes

고온적응성 선발계통을 이용한 팽이버섯 신품종 '백로'의 특성

A first, we made white strain 'S line' adaptable to elevated temperature after collected brown strains were characterized with culture characterization on temperature and their monokaryons isolated at the high temperature were crossed with white strain. These S line monokaryons were crossed again with other monokaryons derived from a commercial white. As a result of successive crossing, finally a new variety 'Baengno' was developed. The optimum temperature of mycelial growth was $25^{\circ}C$ but it needed to adjust to $18{\sim}20^{\circ}C$ when incubated at the bottle cultivation. It brought incubation period shortening as 21 days saved 2~3 days when compared with other white varieties. The optimum temperatures of fruiting body initiation and development were almost same to others like as $14^{\circ}C$ and $7^{\circ}C$, respectively. Fruiting body of 'Baengno' was pure white even developed from crossing with brown strains. 'Baengno' was a good variety with high quality and high productivity characterized as quite even budding habit, long stipes and hemi-spherical pilei. This variety needed more air ventilation and had to be adjusted its cultivation environment for the good cultivation.

수집균주들의 온도에 따른 특성을 분석하여 비교적 고온에 적응하는 균주를 선발하고 이를 이용하여 백색계동을 육성한 후 이 계통과 기존의 백색품종과의 교잡을 통하여 새로운 품종 '백로'를 육성하였다 백로 팽이버섯의 균사배양 최적온도는 $25^{\circ}C$이나 병재배시 배양온도는 비교적 높은 $18{\sim}20^{\circ}C$이므로 적정 배양일수는 21일로 기존 백색재배종보다 2~3일 빠른 시기에 실시하여야 발이가 균일하다. 자실체발생 적온은 기존품종과 같은 $7^{\circ}C$, 생육온도는 $25^{\circ}C$로 일본계 품종의 버섯 생육온도와 동일하다. 백로팽이는 갈색야생종과 교배로 육성된 계통이지만 자실체의 갓 및 대색깔이 순백계통의 백색이다. 또한 버섯발이가 고르고, 대가 긴 특징을 가진 고품질 다수성 품종으로 갓은 반구형이다. 백로는 기존 백색팽이 품종보다 환기를 더 많이 요구하기 때문이므로 이 품종에 맞는 재배환경으로 재배관리를 조절할 필요가 있다.