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aquatic heterosis
释义
aquatic heterosis
Encyclopedia
农学
水产杂种优势
释
aquatic heterosis
水产杂种优势
遗传基础不同的两个水生生物亲本杂交产生的杂种在生长势、生活力、生殖力、抗逆性、产量和品质等性状上优于其亲本的现象。杂种优势是生物界普遍存在的现象,对改良生物的生产性能有重要作用。一般具有杂种优势的杂种表现明显的近交衰退现象,且随繁殖世代增进而减退,因而一般只用杂种一代。
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canonical coordinate system
canonical correlation
canonical correlation analysis
canonical correlation coefficient
canonical correlation coefficients
canonical correlation decomposition
canonical correlation decomposition (CCD)
canonical correlation variable
canonical correlation variables
canonical covering
canonical curve
canonical cut
canonical decomposition
canonical development
canonical deviation
canonical differential equation
canonical dimension
canonical distribution
canonical divergence
canonical divisor
canonical divisor class
canonical domain
canonical element
canonical elements
canonical embedding
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