主要研究在启动一项林木育种项目时，基于后向选择的不同短期林木育种策略的效率。
In this paper, efficiency of different short-term tree breeding strategies based on backward selection was studied when a new tree breeding project was initiated.
在美国的一些林木育种项目中，育种群已用来控制种子园的近交、捕获最大的遗传增益的有效措施。
Breeding groups are being used to control inbreeding in a breeding population and to effectively achieve maximum genetic gains in some tree improvement programs of the United States.
目前为了尽快的缩短林木育种周期并为林业生产尽早地提供优良繁殖材料，经常采用的方法就是林木早期测定。
At present, early test in tree breeding is often used in order to shorten breeding term and provide the excellent materials for forest production as soon as possible.
杨氏弹性模量是反映树干或板材抗弯、抗压强度的重要指标，是开展林木材质育种研究的重要内容。
MOE reflects log or lumber material anti-bend, important index of the anti-press strength, which is the important contents for developing forest wood breeding.
林木的微卫星标记可扩充现有的RFLP、RAPD、AFLP遗传图谱，以及QTL分析，并应用于基因型鉴别，分子标记辅助选择育种。
SSR can be expected to complement existing RFLP, RAPD, AFLP maps, and are useful for genotype identification. gene and QTL analysis, marker assisted selection in breeding and pedigree analysis.
决定缩短育种轮回的因素是如何克服林木始花龄晚和能否有效进行早期测验和选择。
Shortening breeding cycle depends on how to overcome the long time span before first flowering and on early selection and test.
目前，杨树已成为林木组织培养及生物技术育种中研究最多的树种之一。
At present, it has become the mostly researched tree species in tissue culture and biotechnology breeding.
目前，杨树已成为林木组织培养及生物技术育种中研究最多的树种之一。
At present, it has become the mostly researched tree species in tissue culture and biotechnology breeding.
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