1) stratification of ovaries
雌花子房分层
3) inducing female flower differentiation
诱导雌花分化
4) Housing Stratification
住房分层
1.
The Analysis of Distribution Factors Influencing Housing Stratification of the Urbanite;
影响城市居民住房分层的分配因素分析
5) female flower
雌花
1.
The investigation and analysis of the flowering characteristics of male and female flowers of Leshan old age litchi were conducted from single ear, single plant and plant population.
结果表明:乐山古荔枝雌雄花交替开放的顺序是雄-雌-雄;植株群体雌雄花开放时间比单穗和单株长;雌花在开花后7~10d为落花高峰期。
2.
Female flower bloomed about a week after pollen luxuriantly released.
用石蜡切片法对水曲柳雌花发育、大孢子发生及胚胎发育的过程进行了解剖学观察。
3.
Anther abortion during litchi female flower development were studied by applying scanning electric microscope,transmission electron microscope and DAPI fluorochrome methods.
应用扫描电镜、透射电镜和DAPI荧光染色方法对荔枝雌花发育过程中花药败育进行了研究,结果发现:败育的花药在减数分裂之前其药壁细胞即开始解体,减数分裂后,药壁组织发生细胞程序性死亡,导致对营养物质竞争力的减弱;发生凋亡的细胞,细胞核染色质固缩,其电子密度高于正常,核仁消失,染色质趋边化的双层核膜降解,有的核变形而凹陷,核膜破裂,在核膜破裂处可见到由核物质组成的凋亡小体。
6) female flowers
雌花
1.
Studies on the Inheritance of Female flowers Growth Orientation in Cucumber
黄瓜雌花朝向遗传规律初探
2.
The research of the synergistic effect of Spd and IAA as well as the effects of temperature difference round the clock,N concentration and pH on the induction of female flowers in cotyledons of cucumber(Cucumis sativus L.
采用添加Spd和IAA的MS培养基培养离体黄瓜子叶,研究了Spd和IAA对雌花诱导的协同作用,及昼夜温差、培养基中N素和pH值对雌花诱导的影响。
补充资料：垂向分层理论
垂向分层理论
stratification theory of grains in vertical direction
ehuix旧ng feneeng Iilun垂向分层理论(stratifieation theory of grainsin vertieal direetion)对重选过程中矿粒群在介质中作垂向分层运动机理的阐释。在重选设备内堆置或铺置的动态矿粒群称作床层。借助介质的垂直流动、沿斜面流动或作回转运动使床层松散，是粒群发生分层转移的先决条件。分层是指矿物粒群按密度差形成不同的矿物层;颗粒的粒度以及形状对分层也有重要影响。对于分层的发生机理，曾经有过多种见解，但归纳起来不外两类观点。一类是动力学分层学说，认为分层是按个别颗粒在介质中的运动差异发生的(见自由沉降速度差分层学说、干涉沉降速度差分层学说);另一类是静力学分层学说，认为分层是粒群整体的内在不平衡因素引发的(见悬浮体密度差分层学说、位能分层学说和重介质分层学说)。前一类学说强调了流体动力对颗粒运动的影响，而忽略了颗粒间的静力作用;后一类学说的立论观点则忽视了流体动力对分层的影响，而将床层内颗粒或颗粒群间的静力差异视为分层的决定性因素。 (孙玉波)
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