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单词
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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field emission scanning electron microscope, FESEM
field epidemiology
field equation
field evaporation
field evapotranspiration
field-excited
field exercise
field experiment
field experimental data scoring
field experimental design
field experimentation
field extension
field extension; extension of a field
field first aid equipment
field flattener
field flattening
field flattening correction
field flattening lens
field-flattening lens
field flattening lens, field-flattening lens
field flow fractionation
field-flow fractionation
field flow fractionation (FFF)
field flow fractionation system
field for relief
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