Lilies are one of the most important bulbous plants as cut flowers. In the present study, the effect of foliar sprays of different concentrations of benzyladenine (BA) (0.00, 0.25, and 0.50 mM) and salicylic acid (SA) (0.00, 0.10, 0.50, and 1.00 mM) was investigated at four stages of pre-harvest on qualitative and quantitative traits of Lilium ‘Navona’. The studied traits included number of buds, number of leaves, bud length, bud diameter, stem length, stem diameter, leaf length, leaf width, fresh and dry weights of stems and leaves, dry matter of stems and leaves, vase life, peduncle length and diameter, ionic leakage, chlorophyll index, content of anthocyanins, flavonoids, carotenoids and chlorophyll a, chlorophyll b, and total chlorophyll. The highest number of buds and vase life were achieved with 0.50 mM SA and 0.00 mM BA. The highest values for bud diameter and peduncle length were achieved with 1.00 mM SA and 0.00 mM BA, however, there was no significant difference to 0.50 mM SA. In addition, 0.50 mM SA increased stem diameter and length, leaf length and width, and stem fresh weight compared with control. Results showed that increasing BA to 0.50 mM caused undesirable effects on many traits including the number of buds. Since the largest number of buds and the highest vase life were achieved with 0.50 mM SA and 0.00 mM BA and these traits are the most important characters for the quality of Lilium, spraying of 0.50 mM SA is recommended.

中文翻译：

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苄基腺嘌呤和水杨酸对亚洲杂交百合“ Navona”的形态和生化特性的影响

百合是切花最重要的球根植物之一。在本研究中，在以下四个阶段研究了不同浓度的苄基腺嘌呤（BA）（0.00、0.25和0.50 mM）和水杨酸（SA）（0.00、0.10、0.50和1.00 mM）叶面喷雾的效果。预先收获百合'Navona'的定性和定量性状。研究的性状包括芽数，叶数，芽长，芽直径，茎长，茎直径，叶长，叶宽，茎和叶的鲜重和干重，茎和叶的干物质，花瓶寿命，花序梗长度和直径，离子泄漏，叶绿​​素指数，花色苷，类黄酮，类胡萝卜素和叶绿素a，叶绿素 b的含量 和总叶绿素。0.50 mM SA和0.00 mM BA可以实现最高的芽数和花瓶寿命。1.00 mM SA和0.00 mM BA达到了芽直径和花梗长度的最大值，但是，与0.50 mM SA没有显着差异。此外，与对照相比，0.50 mM SA增加了茎的直径和长度，叶的长度和宽度以及茎的新鲜重量。结果表明，将BA增加至0.50 mM会对包括芽数在内的许多性状产生不良影响。由于使用0.50 mM SA和0.00 mM BA可获得最大的芽数和最高的花瓶寿命，并且这些性状是百合质量的最重要特征，因此建议喷洒0.50 mM SA。