Journal of the Korean Society of Tobacco Science (한국연초학회지)

The Korean Society of Tobacco Science (한국연초학회)
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Development of PVY resistant flue-cured $F_1$ hybrid variety 'KF120'

  • Received : 2009.11.02
  • Accepted : 2009.12.01
  • Published : 2009.12.25
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Abstract

Potato Virus Y (PVY), PVY-vein necrosis strain, causes severe damage at growth, yield and leaf quality on flue-cured tobacco in Korea. The development of PVY resistant flue-cured varieties without quality deterioration is therefore urgently desired. The flue-cured tobacco, KF120 (Korea Flue-cured 120), was a male-sterile (ms) $F_1$ hybrid derived from the cross between msKF117 and KF0007-7. msKF117 was developed from the cross of NC82 with N. africana and KF0007-7 was developed from the cross of KF117 with NC82. The agronomic characteristics and disease resistance of KF120 was evaluated during 2006-2007 field performance test. It showed better growth characteristics and yield performance than standard cultivar KF109. It had 2 more leaves per plant, flowered 2 days later than KF109. The yield of cured leaf of KF120 was increased by about 5% compared to KF109. The chemical composition and physical properties of the cured leaf of KF120 were as much acceptable as those of KF109. KF120 showed high resistance to PVY compared to KF109. It showed a similar mode of resistance to bacterial wilt and black shank as was found in KF109.

감자바이러스 Y(PVY)는 국내 황색종 산지에서 잎담배의 생육, 수량 및 품질에 있어서 매우 심한 피해를 일으키는 병으로서 이를 방제하기 위해서는 PVY 저항성 품종의 육성이 시급히 요구된다. KF120은 msKF117과 KF0007-7를 교배하여 육성된 $F_1$ hybrid 품종이다. msKF117은 NC82와 N. Africana를 교배하여 육성하였고, KF0007-7은 KF117과 NC82를 교배하여 육성하였다. KF120의 농경적 특성과 병저항성을 평가하기 위하여 2006 ~ 2007년 동안 생산력 검정시험을 수행한 결과 KF120은 KF109에 비하여 생육특성 및 수량성이 양호하였으며 수확엽수는 2매 정도 많았고 개화기는 2일정도 늦었다. KF120의 건조엽 수량은 KF109에 비하여 5% 정도 증수 되었으며 화학성분 및 물리성은 대등한 수준이었다. KF120은 KF109에 비하여 세균성 마름병과 역병에 대해서는 유사한 저항성을 가지고 있었으며, PVY에 대해서는 높은 저항성을 보였다.

Keywords

References

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