摘要
本文通过对八渡油松种子园连续4年的观察,掌握了油松嫁接母树开始开花年龄和开花时间;研究了不同无性系雌雄球花期的变化及其同步性等问题;结合气象因素,分析了温、湿度、降雨等对雌雄花期的影响。
Through the four-year observation in Chinese pine seed orchard of Badou Forest Farm,the age and time of seed tree blooming were mastered.The synchroneity and variation of flowering stage for different clones were also studied,combining meteorological factors,the effects of temperature,humidity and rainfall to male or female flower stage were analysed.
出处
《陕西林业科技》
北大核心
1991年第3期1-5,共5页
Shaanxi Forest Science and Technology
