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第二代无性系种子园
释义
第二代无性系种子园
Encyclopedia
农学
种子生产区
释
second generation clonal seed orchard
第二代无性系种子园
第一代遗传改良材料经过一轮双亲子代(包括少量单亲子代)测定和配合力的选择,在优良组合的后代中选择优良个体,以及在部分未经选择的林分中补充的资源建立的种子园。
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axiom of closure
axiom of complete induction
axiom of completeness
axiom of comprehension
axiom of congruence
axiom of connection
axiom of constructibility
axiom of constructivity
axiom of continuity
axiom of countability
axiom of countable choice
axiom of denumerability
axiom of dependent choice
axiom of determinacy
axiom of determinacy (AD)
axiom of domination
axiom of elementary sets
axiom of empty set
axiom of equality
axiom of existence
axiom of extensionality
axiom of foundation
axiom of free mobility
axiom of identity
axiom of inaccessibility
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