摘要
本文通过对油松球果生命史的调查,掌握了油松球果在其生长发育过程中的损失情况。提出了一整套促进油松种子园种子丰产的综合技术,使良种产量由原来的平均11．5 kg／hm2提高到26．0 kg／hm2。
The life cycle P. tabulaeformis cone was investigated and the loss of cones in the process of growth and development was learned. Based on that, a set of comprehensive measures to promote the cone-bearing was put forward, having the yield of seed increased from the previous 11. 51 kg/hm^2 to 26.0 kg/hm^2.
出处
《陕西林业科技》
2006年第3期15-17,26,共4页
Shaanxi Forest Science and Technology
关键词
油松
种子园
结实技术
种子产量
Pinus tabulaeformis
seed orchard
fruiting-promoting technique
seed yield
