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无性系选育
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无性系选育
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农学
授粉
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clonal selection and breeding
无性系选育
对于易无性繁殖的树种,选出不同家系、种源或杂交子代中的优良单株,通过无性繁殖形成无性系,然后按照一定的育种目标进行田间试验,对各个无性系进行比较鉴定,评选出最优无性系,最后推广应用于生产的育种过程。
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unstable solution
unstable spectrum
unstable spiral point
unstable state
unstable state kinetics
unstable submanifold
unstable subspace
unstable surface
unstable theory
unstable waterflooding
unstainable
unstationary star
unsteady
unsteady aerodynamics
unsteady combustion
unsteady constraint
unsteady flow
unsteady flow in open channe
unsteady flow of gas turbine
unsteady fluid flow in porous media
unsteady problem
unsteady state
unsteady state diffusion
Unsteady state flow through porous media
unsteady state heat conduction
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