蓝浆果花冠形态特征及其与果实横径相关性的分析

Analysis of morphological features of blueberry corolla and its correlation with fruit diameter

对兔眼蓝浆果(Vaccinium ashei Reade)、北方高丛蓝浆果(V.corymbosum L.)和南方高丛蓝浆果(V.corym bosum hybrids)3个品种群及南方高丛蓝浆果实生系的花冠长度、花冠宽度、花冠长宽比和花冠口径大小等特征进行了测定和比较,并研究了花冠形态特征参数与果实横径的相关性。研究结果表明,蓝浆果不同品种群间和同一品种群内不同品种间的花冠形态特征参数差异较大;依据花冠形态特征参数,可将供试的兔眼蓝浆果和南方高丛蓝浆果各品种及南方高丛蓝浆果各实生系初步划分为4种类型,将供试的北方高丛蓝浆果各品种划分为3种类型。此外,只有南方高丛蓝浆果各品种及其实生系的果实横径与花冠宽度相关性显著(P<0.05),相关系数分别为0.639和0.324。

The morphological parameters of corolla length, corolla width, corolla length-width ratio and corolla aperture of different cultivars of rabbiteye blueberry （ Vaccinium ashei Reade） , northern highbush blueberry （V. corymbosum L. ）, southern highbush blueberry （V. corymbosum hybrids ） and seedling lines of southern highbush blueberry were compared, and the Correlation between the corolla morphological parameters and the fruit diameter was analyzed. The results showed that the difference of corolla morphological features among different cultivar groups and among different cultivars in each group were distinct. According to the difference of corolla morphological parameters, cultivars of rabbiteye blueberry, cultivars of southern highbush blueberry and seedling lines of southern highbush blueberry could be divided into four types respectively, and cultivars of northern highbush blueberry into three types. Significant correlations were only found between the fruit diameter and the corolla width of cultivars and seedling lines of southern highbush blueberry （ P 〈 0.05 ） , and the correlation coefficients were 0. 639 and 0. 324 respectively.