查询词典 microspore

Under the same environmental conditions when the meiosis of microspore mother cell develop into tetrads the female buds were dipped duly with colchicine solution, which guaranteed that chromosome doubling of megaspore in white poplar could be accomplished in a short time. So much workload was cut down, and induction efficiency of triploid white poplars was also improved.

当相同生境以及培养条件下的小孢子母细胞减数分裂达到四分体后，适时采用秋水碱溶液对雌花芽进行浸泡处理，可保证白杨大孢子染色体加倍处理能集中于一个较短的时间段内进行，从而大大减轻了工作量，同时提高三倍体诱导效率和效果。

Objective:To determine the self-compatibility of Platycodon grandiflorum and the location of microspore germination on stigma.

目的：确定桔梗的自交亲和性及花粉粒在柱头上的萌发部位。

Low temperature and mannitol pretreatment favor the maintaining of microspore activity.

低温和甘露醇预处理都有利于保持小孢子的活力。

The active charcoal of 100, 200mgL^(-1) did not promote the microspore embryogenesis.

活性炭对大白菜小孢子胚的发生有抑制作用。

In developing microspore mother cells and anther walls there existed much high level of CaMK.

在成熟胚囊中，各种细胞中的分布有一定差异，并且在不同的物种中变化较大。

The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.

两个精核和管核都是从同一个小孢子核有丝分裂产生的。

Relationships between microspore stages and morphology of florets were observed.

结果表明： 1。确定了小花的形态学特征与小孢子发育时期的关系。

Haploid culture Different genotype varieties were used to study the anther and microspore culture in vitro.

单倍体培养本文以不同基因型材料进行胡萝卜花药培养和游离小孢子培养研究。

The results showed that mango microspore development was closely correlated with the change of external morphological appearance of flower organ.

结果表明，芒果小孢子发育时期与花器外部形态变化密切相关。

NLN culture medium is optimal for the isolated microspore of Chinese cabbage culture.

NLN培养基是最适于大白菜游离小孢子培养的基本培养基。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。