温室促成栽培中不同品种蓝莓花的形态特性比较

Comparison of morphological characteristics of different varieties of blueberry flowers in greenhouse

为探究不同品种蓝莓花器官的形态特征差异,为蓝莓品种的分类鉴定和栽培等提供理论依据,利用Nikon SMZ25体视显微镜对‘蓝丰’‘布里吉塔’‘莱克西’‘北陆’‘伯克利’‘蓝金’‘奥尼尔’7个品种的花器官进行了观察,并采用纤维素酶溶解法,对蓝莓的花粉量进行了测定。结果表明:不同蓝莓品种的单花长、萼片长、花瓣长、花柄长、花冠直径、花丝长、花药长、花柱高、雄蕊数量、花粉粒数等都有显著差异。其中‘伯克利’‘布里吉塔’‘莱克西’的花最大,‘北陆’的花最小;单花长、花冠直径、花丝长、花药长均以‘伯克利’最大,‘北陆’最小;‘布里吉塔’的萼片长、花瓣长、花柱长均为最大;‘莱克西’的花柄最长,雄蕊数量却最少;‘蓝丰’的雄蕊数量最多;花粉粒个数最多的品种为‘布里吉塔’(254.9粒/花药),最少的为‘蓝金’(166.7粒/花药)。

To explore the morphological characteristics of different blueberry flowers and provide theoretical basis for the classification and identification and cultivation of blueberry species, in this study, Nikon SMZ25 stereoscopic microscope was used to observe the flower organs of 7 varieties of ‘Bluecrop'‘Brigitta'‘Legacy'‘Northland'‘Berkeley'‘Bluegold'‘O' Neill' and the pollen content of blueberry was determined by cellulase digestion method. The results showed that: single flower length,sepals length, petal length, flower stalk length, corolla diameter, filament length, anthers length, style height, stamen number,pollen grain number of different varieties of blueberry all had significant differences. The flowers of ‘Berkeley'‘Brigitta'‘Legacy' were the largest, and that of ‘Northland' was the smallest;the single flower, corolla diameter, flower length, flower medicine of ‘Berkeley' was the largest while ‘Northland' is the smallest;the sepals, long petals, and long flowers of ‘Brigitta'was the largest;the handle of ‘Legacy' was the longest, and the stamens was the least;the stamens of ‘Bluecrop' was the most;the species with the most pollen grains was ‘Brigitta'(254.9 grain/anther), while the least was ‘Bluegold'(166.7 grain/anther).