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embryo abortion
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embryo abortion
Encyclopedia
农学
〔杂交育种性状〕
释
embryo abortion
胚败育
狭义的胚败育指果树作物完成授粉受精后,由遗传决定的合子幼胚发育过程中出现停滞或死亡,未能形成成熟胚的生殖异常现象。广义的胚败育指果树作物的胚发育异常,未能形成可育种子胚的生殖现象。
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elliptic motion
elliptic net
elliptic net of circles
elliptic net of lines
elliptic net of spheres
elliptic nome
elliptic operator
elliptic orbit
elliptic parabola
elliptic-parabolic
elliptic-parabolic equation
elliptic-parabolic motion
elliptic paraboloid
elliptic paraboloid of revolution
elliptic partial differential equation
elliptic pencil
elliptic pencil of circles
elliptic pencil of lines
elliptic pencil of rays
elliptic pencil of spheres
elliptic plane
elliptic point
elliptic polarization
elliptic polynomial
elliptic pseudo-distance
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