有性生殖

Juglans mandshurica ; sexual reproductive process ; bud population ; fruit growth rate ; fruit thinning rate

胡桃楸；有性生殖过程；芽种群；雌雄异熟；果实生长速度；疏果率

The formation of such a conjugation pair may be concerned with selfing; the sexual process may be a primitive type of sexual reproduction.

这种接合对的出现可能与自接型有关，其有性过程可能是一种原始的有性生殖类型。

They produce no offspring of their own, one consequence of which is that populations of plants and animals capable of self-fertilisation, or "selfing", grow at twice the rate of populations that depend on sexual reproduction.

他们不会繁衍自己的后代，一个后果就是，能够自体受精的动植物数量的增长率，是依赖有性生殖的两倍。

Under natural conditions, the clonal growing rhizomes of L.

因此，三种橐吾有性生殖的潜力依然很大。

The great mass of normal pollen grains make pollinationpossible.

在人工授粉条件下，观察了小叶杨有性生殖过程的形态发育及其持续时间，结果如下：除正常花粉外，有异常和败育花粉，但不影响传粉和受精。

The oospores often remain dormant for a period of time to germinate, which comfines the research of inheritance and variation behavior of the oospores.

卵孢子通常休眠一段时间后才萌发，这阻碍了大豆疫霉菌有性生殖后代毒性的遗传和变异研究。

Forests, the survival rate and space-occupying ability of both ramets and sexual seedlings were relatively high, with

和有性生殖幼苗存活率均较高，占据空间的能力较强，但克隆苗在数量和占据空间的能力上占较大优势

Its modes of reproduction includes asexual and sexual reproductions.

生殖方式包括有性生殖和无性生殖两种类型。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。