摘要
对 70株三台核桃开花习性的观测表明 :三台核桃完成整个开花过程 (包括雌雄花 ) ,历时 47d,但品种不同、树龄不同 ,花期各异 ;具有明显的雌雄花异熟现象 ,尚未看到雌雄同熟品种 ;开花与气象因子的关系密切 ;落花高峰期一般出现在 4月 7日～ 2 0日之间 ,落 (雌 )花率为 3.0 %～ 94.2 % ,但落 (雌 )花率因品种而异。
Seventy sample trees were used to study the blooming habits of Juglans sigillata . Results indicate that the blooming season of both the male and females flowers lasts 47 d, and the blooming stage varies with the cultivar and tree age. An apparent phenomenon of dichogamy is present and no monochogamy cultivars were identified. The blooming is closely related to climatic factors. The peak period of female flower drop occurs during April 7 to April 20, with the rate of flower drop ranging from 3.0 percent to 94.2 percent. The difference exists in cultivars.
出处
《经济林研究》
2001年第2期7-11,共5页
Non-wood Forest Research
