1) selective abortion
选择性败育
1.
Selective abortion in seed plants means selective abortion of developing fruits/seeds based on pollen source,order of pollination,location of fruits on plant,number of developing seeds,or some combination of these.
种子植物的选择性败育是指植株在花粉源、传粉次序、果实在植株上的位置和发育果实中的种子数目等因素或者这些因素综合作用的基础上对发育中的幼果或种子选择性败育的现象。
2.
Results showed that at early phase of sex differentiation, both pistil and stamen primordia could be found in male and bisexual flower buds, but selective abortion occurred in the pistil primordia of male flowers when macrosporocytes developed to megaspore tetrads.
结果发现,在花性别分化的早期,雄花和两性花的花芽中雌、雄蕊原基均具备,只是在花芽发育到一定时期,雄花的雌蕊原基发生选择性败育,败育发生在大孢子母细胞减数分裂为4个大孢子时期。
3) selective birth
选择性生育
1.
In the factors acting on the higher sex ratio at birth,the lawless fetal gender authentication and the selective birth are its efficient causes,and the main evidence is the normal first-born sex ratio at birth and the higher second-born or the added sex ratio at birth.
在作用我国出生性别比偏高的诸因素中,非法的胎儿性别鉴定及选择性生育是其直接原因,它主要表现为一胎出生性别比基本正常、二胎及以上出生性别比偏高。
4) The Rational Choice Against Corruption
反腐败的理性选择
6) Sex-selective childbearing
生育性别选择
补充资料：连续性与非连续性(见间断性与不间断性)
连续性与非连续性(见间断性与不间断性)
continuity and discontinuity
11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt，n琳t:nuity一)_见间断性与不间断性。and diseo红ti-
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条