They have found areas suitable for seed orchard purposes . 他们找到了适于营建种子园的地区。
In 1954 the first experimental seed orchards were planted . 到1954年,第一批实验性种子园建立起来了。
Seed orchards should not be established on sites which are seriously susceptible . 种子园不应设在易受严重影响的地方。
Gibbenellic acid is now applied as a standard seed orchard treatment in many japanese orchards . 在日本,使用赤霉酸已成为许多种子园的常规措施。
Its use is limited to the preservation of breeding material or the establishment of clonal seed orchards . 其用途仅限于保持育种材料或建立无性系种子园。
New and more sophisticated methods of physiological control should be available to the seed orchard manager . 新的和更先进的生理控制方法,对于种子园管理人员将会有效的。
The main function of a seed orchard is to produce seed of improved genetic quality on a regular and sustained basis . 种子园的主要作用就是经常和持续地生产改良了遗传品质的种子。
It could be argued that localities subject to periodic abnormally dry early summer conditions should be favoured for seed orchard sites . 可以证明有周期性反常干旱早夏的地方作种子园园址应是有利的。
Most seed orchard theory is based on the assumption that panmixis will occur and that selfing will not be a serious problem . 大多数关于种子园理论,是以假定能发生随机交配和自花受精而不会成为严重问题为依据的。
Progress on reproductive system of forest seed orchards 种仁营养成分和无机元素含量的变异
A seed orchard is an intensively-managed plantation of specifically arranged trees for the mass production of genetically improved seeds to create plants, or seeds for the establishment of new forests.