烤煙新品種云煙202 的選育及特征特性
Breeding and selecting of flue- cured tobacco variety Yunyan202 and its characteristics
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摘要: 云煙202 系選用MS KX13 作母本, KX14 為父本育成的烤煙雄性不育雜交種。該品種農(nóng)藝性狀穩(wěn)定, 田間生長(zhǎng)整齊一致,。植株塔型, 葉形長(zhǎng)橢圓, 大田生育期110- 115 d, 經(jīng)濟(jì)性狀在多年異地試驗(yàn)中均優(yōu)于或相當(dāng)于K326,。煙葉成熟特征明顯, 分層落黃好, 易烘烤?？竞笤瓱熒铧S,、金黃色居多, 結(jié)構(gòu)疏松, 油分多, 色度強(qiáng), 化學(xué)成分含量適宜, 比例協(xié)調(diào)?？筎MV, 抗黑脛病, 低抗赤星病, 中抗青枯病,、CMV, 感南方根結(jié)線蟲病、PVY,。云煙202 是一個(gè)品質(zhì),、抗性、產(chǎn)量,、適應(yīng)性等方面較能兼顧的優(yōu)良新品種, 特別適宜在TMV,、赤星病和黑脛病高發(fā)地區(qū)種植。Abstract: Yunyan202, a new flue- cured tobacco variety of male sterile hybrid is developed by crossing MS KX13( female parent) and KX14( male parent) . With stable agronomic characteristics, Yunyan 202 grows rather uniformly in field. It has a tower- shaped plant and oblong lamina. It has a growing period of 110- 115 days in the field. The tests of many years and in many places showed that Yunyan 202 is superior or similar in terms of economic returns compared with the control variety K326. Its leaves mature well layer by layer and are easy to cure.The cured leaves are in orange color, loosely structured, oily and with strong chroma. The content and ratio of the major chemical components were suitable. It is resistant to TMV and black shank, moderately to resistant to Granuville wilt and CMV, low resistant to brown spot. Yunyan 202, an excellent flue- cured tobacco variety with fine leaf quality, high yield and good adaptability, can be grown in areas with high incidence of TMV, brown spot and black shank.
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