4种营养液对四季秋海棠‘超奥’生长及开花指标的影响

Effect of four nutrient solutions on growth and flowering indexes of Begonia cucullata 'Super Olympia Series'

四季秋海棠（Begonia cucullata Willd．）为秋海棠科（Begoniaceae）秋海棠属（Begonia Linn．）草本植物，又名秋海棠、玻璃海棠。该种的‘超级奥林匹亚系列’（简称‘超奥’，‘Super Olympia Series’）品种因花色丰富、花姿美丽、观赏价值高而常用于花坛布置和盆花栽培。与土壤栽培相比，无土栽培具有生长速度快、营养配方佳、基质轻、栽培洁净等优点。

Effect of four nutrient solutions on morphological, flowering and growth indexes of Begonia cucullata‘ Super Olympia Series＇ was comparied, and on this basis, the nutrient solution formulation suitable for soilless cultivation of the cuhivar was selected. The results show that the four nutrient solutions tested have promotive effects on leaf number, height, crown diameter, inflorescence number, floret number, male flower diameter, fresh and dry weights of above-and under-ground parts, length of root system and maximum leaf area at different degrees. In which, T7 nutrient solution （ i. e. Japanese YuanShi nutrient solution） has the significantly promotive effects on morphological, flowering and growth indexes of the cuhivar. Therefore, it is suggested that T7 nutrient solution may be used for soilless cuhivation of the cultivar.