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从北京市农林科学院农业综合发展研究所顺义科技示范园桃育种基地选取20个两用桃品种或品系作为研究对象,观察记录其花芽从萌动到落瓣期间的变化,确定了观赏期的划分标准。根据观赏期起始时间的早晚,拟定4月8日前开始有观赏价值的为早花品种或品系,4月9~10日的为中花品种或品系,4月11日以后的为晚花品种。结果表明:在所调查的品种或品系中,中花品种为多数,早、晚花品种较少。
A total of 20 peach cultivars or lines from 20 peach breeding bases in Shunyi Scientific and Technological Demonstration Park of Beijing Academy of Agriculture and Forestry were selected as study objects. The changes of flower buds from sprouting to falling were observed and recorded. The division criteria of ornamental period . According to the starting time of the viewing period sooner or later, it is planned to start early flower or line that has ornamental value before April 8, April 9 to April 10 is the mid-flowering variety or line, after April 11, the late-flowering variety . The results showed that among the investigated varieties or lines, the varieties of Zhonghua were the majority, while the varieties of early and late flowers were less.