Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (27): 72-75.doi: 10.11924/j.issn.1000-6850.casb18040080

Special Issue: 生物技术 园艺

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Physiological Characteristics of Hybrid‘Pink blue’from Lycoris longituba and L. haywardii

  

  • Received:2018-04-17 Revised:2018-06-13 Accepted:2018-06-22 Online:2018-09-19 Published:2018-09-19

Abstract: To study the heterosis of‘Pink blue’, takingLycoris haywardii as female parent andL. longituba as male parent, the photosynthetic parameters of‘Pink blue’were detected with LI-6400 Portable Photosynthetic Analyzer, and the alkaloid contents were analyzed. The results showed that the net photosynthetic efficiency (Pn ), stomatal conductance (Gs ), intercellular CO2 concentration (Ci ), transpiration rate (Tr ), and the content of chlorophyll a and b and the total of chlorophyll of‘Pink blue’were between those of female parent and male parent. The water use efficiency (WUE ) of‘Pink blue’was better than that of its parents. The lycorine content of‘Pink blue’was higher than that of parents while the galanthamine content was lower. In conclusion,‘Pink blue’shows the heterosis on drought resistance and active medicinal ingredients (e.g. lycorin).