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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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sheaf
sheaf cohomology
sheaf homomorphism
sheafication
sheaf isomorphism
sheaf model
sheaf of Abelian groups
sheaf of circles
sheaf of complexes
sheaf of curves
sheaf of differential operators
sheaf of differentials
sheaf of finite type
sheaf of functions
sheaf of germs
sheaf of germs of analytic fanction
sheaf of germs of divisors
sheaf of germs of functions
sheaf of groups
sheaf of hyperfunctions
sheaf of ideals
sheaf of lines
sheaf of meromorphic functions
sheaf of modules
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