利用威廉姆斯博士的方法，宇航员乔治完成了首个小株采种太空实验，并将一株植物移植到太空花园中。
Using Dr. Williams's method, astronaut George completed the first seed-to-seed experiment in space, and moved one plant closer to a garden in space.
丰年应适时采种，就地育苗，扩大人工种群。
At the same time, the artificial populations should be expanded from seeds collected in years of high seed set.
介绍了山乌桕的形态特征，采种育苗和造林技术。
Sapium discolor's morphological character seed - collecting and seedling - raising, cultural technique are presented.
对粘木的保护应采取采种育苗，扩大其种植面积的保护措施。
The protective strategies of collecting seeds for breeding and enlarging planting area should be carried out.
在国家级黄桑自然保护区的实验区建立天然阔叶林采种基地，基地面积733。
The base for collecting seeds of natural broad-leaved forest is established in the experimental zone of Huangsang nature reserve, with the area of 733.
阐述了杯萼海桑育苗中的采种、整地、苗圃管理，病虫害防治等过程中的技术要点。
The author discussed the main techniques of seeds collection, soil preparation, nursery management, and control of pests and diseases during the seedling cultivation of Sonneratia alba.
座式上树设备广泛适用于林区各种母树的采种采果、森林维护以及电力部门外线作业。
The new tree-climbing machine is suitable for various seeds harvesting in forest regions, the tree maintenance in the forests and the operation of electric wire poles.
采种母株和采种部位对当归种子活力也有影响，当年产早苔籽活力高于正常采收的侧穗籽。
Seed vitality was also influenced by mother plant and branch position in some way. Seeds came from premature bolting plants had higher vitality than that from normal lateral branches.
为了提高采集林木球果的效率，保证采种作业工人安全，减小对母树的损坏，研制了林木球果采集机器人。
In order to improve the efficiency of collecting conifer cone, ensure the safety of workers in production, and reduce the damage to the mother trees, a collecting robot of conifer cone was developed.
在采种条件下，所得到的解是最优解，文中所提出的模型不局限于配电系统，亦可适应其它各种类似的集散系统。
An optimal solution is obtained under certain conditions. The model proposed is applicable not only to power distribution systems, but also to other similar distribution systems.
又从采种育苗、造林技术、促进实生幼林早实早丰技术等方面，记述了青刺果的人工栽培技术，为建立青刺果人工原料基地提供了技术支持。
The cultivation technology such as seed collection, seedling raising, planting, and the methods for promoting the early fruiting and high yield of young forest was introduced as well.
又从采种育苗、造林技术、促进实生幼林早实早丰技术等方面，记述了青刺果的人工栽培技术，为建立青刺果人工原料基地提供了技术支持。
The cultivation technology such as seed collection, seedling raising, planting, and the methods for promoting the early fruiting and high yield of young forest was introduced as well.
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