Study on the Osmanthus fragrans blooming season phenology
Through three years observation of Nanjing area a few autumn sweet Osmanthus cultivars blooming season phenology,compared their blooming season phenology and the external morphological characteristics of the flower bud or flower. At the same time, analyzes of the relationship between phenology and temperature, think that after the completion of flower bud differentiation and development to some extent, and daily minimum temperature below critical temperature is the key to enter the florescence. That performance for the ball-shaped flower bud expansion immediately, and then en-ter to top bracts stage;during the stage of top bracts to blossom stage is not strict requirements on low temperature. In the six research cultivars, the florescence of Osmanthus fragrans ‘Zaoyingui’ is the earliest, then O. fragrans ‘Zaoziyin’ and O. fragrans ‘Xionghuang’ research florescence,the florescence of the large number of blossom of O. fragrans‘Wa-nyingui’ , O. fragrans ‘Jinqiugui’ and O. fragrans ‘Jinshi’ at the latest.
Osmanthus fragransblooming season phenologyinducing blooming temperature
国家科技期刊平台
NSTL
万方数据
