青杄开花生物学特性与幼果发育的观测  

The biological characteristics of blooming and fruit development of Picea wilsonii

作　　者：赵成荣[1] 刘桂英 李晓梅[3] 

机构地区：[1]吉林省林业勘察设计研究院,吉林长春130022 [2]九台市园林绿化管理处,吉林长春130500 [3]吉林省林业厅,吉林长春130022

出　　处：《吉林林业科技》2011年第4期7-9,共3页Journal of Jilin Forestry Science and Technology

摘　　要：以长春工业大学林园路校区的庭院绿化树青杆为材料，对开花生物学特性和幼果发育进行观察与研究。结果表明：雄球花在树冠中下部居多，约占总量的60％-70％；雌球花基本着生在树冠中上部，以上部居多。群体花期历时20d，单株雄球花散粉期为6～7d，不同植株间的花期时间相差显著，表现出明显的不同步性。幼果发育迅速，至3周时平均长度为5．2cm、平均直径为1．8cm；早期幼果有深紫灰色和深紫红色之分，发育中的果实可分为浅紫灰色和绿色两种颜色，结绿色幼果的植株显著多于结浅紫灰色幼果的植株。The biological characteristics of blooming and fruit development of Picea wilsonii was observed and studied in Linyuan road campus of Changchun University of Technology. The results showed that： More male cones located at middle and lower of canopy, occupying 60% - 70% total cones. The female cones generally located at middle and upper of canopy. The population anthesis period lasted 20 days. The loosing powder peri- od of individual male cone was 6 - 7 days. The anthesis time was significantly different among individual trees, exhibiting remarkable non - synchronization. The fruit developed quickly, with 5.2 cm average length and 1.8 cm average diameter after 3 weeks. The colors of cone were dark purple grey and dark purple red at early devel- opment, light purple grey and green at middle development. Plants with green cones were more than plants with light purple grey cones.

关 键 词：青杄 雌雄球花 花期 幼果 不同步性 

分 类 号：Q944.58[生物学—植物学]