非洲菊切花瓶插期间的弯茎特性

摘要

就非洲菊 ( Gerbera jamesonii Bolus) '寒王'、 '秋日'、 '法莱伦斯'、 '红艳' 和 '达罗贝尔' 等5个栽培种采后瓶插期间的弯茎特点进行了比较和分析, 并以 '秋日' 品种为试材就其直立程度、 花茎长度、 离水时间和光照时间等对花枝弯茎的影响进行了研究.结果表明, 非洲菊不同品种的弯茎率差异较大, 其中以 '红艳'的弯茎率最低 (22.50%), '达罗贝尔' 的弯茎率最高 (86.25%); 各品种的瓶插寿命也有所不同, '红艳' 最短为5.6 d, '达罗贝尔' 最长为8.1 d;5个非洲菊切花品种的弯茎位置70%以上均位于距花冠基部6~12 cm的茎段.'秋日' 的直立程度与其弯茎率呈显著负相关关系, 即直立程度越小弯茎率越大, 当直立程度为花茎与水平面呈90 o时, 弯茎率最小, 仅为26.7%.但是, 花茎长度、 离水时间和瓶插期间的光照时间对 '秋日' 的弯茎率并无显著影响.%The percentage of bending stems, bending position and vase life of 5 cut gerbera ( Gerbera jamesonii Bolus) cultivars ( 'Hanwang' , 'Autumn' ,'Folailons' ,'Hongyan' and 'Darobell' ) was investigated, and it was found that the percentage of bending stems was different among the cultivars from 22.50%to 86.25%.Vase lives of all 5 cultivars varied a lot,'Darobell' is the longest (8.1 d) , and'Hongyan' is the shortest (5.6 d).Additionally, more than 70% bending position of all 5 cultivars were located in the stem segments between 6~12 cm below the flower head.Further studies with 'Au-tumn' on the effects of different factors ( including the angle between stem and horizontal, stem length, water detached time and the light treatment time) on the percentage of bending stems were conducted, which showed that the smaller the angle between stem and horizontal, the higher percentage of bending stems.However, the effects of stem length, the time without holding in water, and the light time on the percentage of bending stems were not significant.