论文部分内容阅读
观察了油松雌、雄球花开花生物学特性,提出了油松杂交套袋、授粉、解袋以及球果采收的时间和关键技术措施;油松杂交套袋在雄球花芽鳞开裂未散粉前套袋,雌球花珠鳞张开时是雌球花进入可授期的显著标志。根据气候条件在授粉5～7d珠鳞增厚至全部闭合呈紫红色时解袋。
The biological characteristics of the flowering of female and male pollen of Pinus tabulaeformis were observed. The time and key technical measures of hybrid bagging, pollination, solution bagging and coniferous harvesting were put forward. The hybrids of Pinus tabulaeformis Sacks before loose powder, the ball of female scales when the ball is open, the female ball into the flower can be a significant symbol of the grant. According to the climatic conditions in the pollination 5 ~ 7d pearl scales thickened until all the closure was purple when the solution bag.