科研之友
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摘要
Lotus (Nelumbo nucifera) is one of the most popular ornamental flowers in Asia. There are two species of lotus: N. nucifera Gaertn. and Nelumbo lutea (Willd.) Pers (Savolainen and Chas, 2003). One major difference between the species is flower color. Usually, N. nucifera appears with white, pink, or red flowers (Zhang et al., 2011), whereas the flower of N. lutea is characterized by its yellow flowers. In China, lotus has a long cultivation history of more than 3000 years, and traditional cultivars were pigmented with red, pink, or white (Wang and Zhang, 1999; Zhang et al., 2011). The development of new color cultivars in lotus has always been a goal for breeders. In China, over 800 cultivars have been created, and the demand for new colors in lotus cultivars has increased steadily in recent years (Zhang et al., 2011). In addition, large-flowered lotus is popular in landscaping. 'Zijin Chuoying' is an attractive largeflowered lotus with multicolored and duplicatelayered flowers; broad outer petals with yellow-green coloration, red-purple petal tips, and clear dorsal veins; and narrow, small, erect inner petals with red or green spots. In replicated trials, 'Zijin Chuoying' has a similar growth habit to cultivar Zhufeng Cuiying in terms of cultivation environment, plant behavior, and flowering time. 'Zijin Chuoying' is suitable for planting in temperate zones, such as in Nanjing. The latitude of Nanjing is 31 degrees 14' N to 32 degrees 37' N, and the climate of Nanjing is similar to the regions in the eastern United States, such as Georgia. In Nanjing, the average temperature in January is 2 degrees C and its typical minimum temperatures is -5 to -8 degrees C; August is the hottest month in a year, and its average temperature is 28 degrees C. In cold zones, a greenhouse environment is required for lotus production.
- 出版日期2017-2
- 单位江苏省中国科学院植物研究所
