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| A New Bolting Tolerance Radish F1 Hybrid—‘Lingyu’ |
| ZHANG Bing-kui，ZHAO Li-min* |
| College of Horticulture，Northwest A & F University，Yangling 712100，Shaanxi，China |
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Abstract ‘Lingyu’is a new radish hybrid bred by crossing self-incompatibility line LS21-9 as female parent and LS39-5 as male parent．The growing period is about 60 days．It is tolerant to bolting．The root is of long cylinder shape，with white and smooth skin．It is about 30-35 cm in length，7-8 cm in diameter．The average weight per root is 900-1 000 g．It is resistant to downy mildew，virus disease and black rot similarly to‘Baiyuchun’．It is suitable for greenhouse，plastic tunnel or open field cultivation in early spring as early cultivar．It is also suitable for autumn cultivation．It has been extended to 3 200 hm2 in Shaanxi，Gansu，Henan，Sichuan and Ningxia area.
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Received: 26 July 2011
Published: 16 August 2011
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