罗汉果生长曲线及种子与果实生长相关分析

Growth curve of Siraitia grosvenorii and correlative analysis of seed and growth of fruit

目的:建立果实生长曲线方程;研究种子与果实的相关性,为罗汉果栽培与繁育提供依据。方法:以伯林3号为材料,对单果重、纵横径进行函数生长曲线拟合;对发育阶段和成熟后的果实中的种子与果肉重、横径×纵径进行偏相关分析。结果:生长曲线回归方程经F检验,达到极显著水平;种子重、种子数与果肉重相关性不显著,而与横径×纵径具有极显著的正相关关系。结论:生长曲线属于倒数函数,果实前30 d生长迅速,应着重加强水肥管理;果实正常发育成熟需要达到一定数量饱满的种子,并种子影响果实的体积大小、果形。

Objective： To establish the growth curve of Siraitia grosvenorii and analyze the correlation between seed and growth of fruit. Method ： The growth curve fitting function was applied for the study of correlation between seed and fruit growth. Result： The significant positive correlation existed between seed and horizontal diameter x vertical diameter, not between seed and flesh weight of single fruit. Conclusion： The growth curve is a reciprocal function, and seed is one of major factors to influencing the size of fruits and the shape of fruit.