pollen abortion

Observation of Pollen Abortion in Nuclear Male Sterile Chinese Cabbage

核不育大白菜花粉败育观察初报

The paper will discuss at the same time the relations between seedless cause and pollen abortion .

本文将同时讨论无核化与花粉败育的关系。

Studies of Pollen Abortion Mechanism of Two New Brassica Napus Male Sterility Lines

两个新发现的油菜雄性不育系花药败育机理的研究

The abnormal expression of COD is one of the cause of the pollen abortion .

细胞色素氧化酶的异常表达是小孢子败育的原因之一。

So pollen abortion is possible only one of reasons that bring seedless fruit .

因此，雄性不育可能是产生无核、少核的原因之一。

Primary Study Report on Fertility alteration Period and Pollen abortion Types of Japonica PGMS Lines

粳型光敏核不育系育性转换及花粉败育类型的研究初报

It had a stable and complete male sterility with 100 % of pollen abortion rate .

不育性稳定，花粉败育率达100%；

Most pollen abortion occurred at mononuclear pollen stage and late binuclear pollen stage .

绝大部分花粉败育发生在单核小孢子期和二胞花粉晚期。

Cytological studies on pollen abortion in C and Y type cytoplasmic male sterile lines in Maize

C型和Y型玉米雄性不育系花粉败育的细胞学研究

So pollen abortion was the main reason for semi-sterility .

因此认为花粉半不育是小穗半不育的主要原因。

The flower abortion was of two types : anandrous and pollen abortion .

花的败育出现无雄蕊型和花粉败育型。

A cytological observation on pollen abortion in a new typic Cytoplasmic Male-sterile Wheat

新型小麦胞质不育系花粉败育的细胞学观察

Preliminary discussion of percentage of pollen abortion as an index of drought resistent physiology of Winter Wheat

花粉败育率作为冬小麦抗旱生理指标的初步探讨

Changes of these matter contents , enzyme activities and enzyme bands might be related to the generation of pollen abortion .

上述物质含量、酶活性及酶谱的变化可能与花粉的败育有关。

The difference in the interaction between environment and genotype reflected on the unstability of pollen abortion in different years .

环境与基因型互作的差异性导致了花粉败育的年度不稳定性。

Observation on Pollen Abortion and Classification of Cytoplasmic Male Sterile Inbred JnA in Maize

玉米细胞质不育系JnA的分组鉴定和花粉败育观察

Its critical temperature of fertility alteration and no pollen abortion typical alteration were 23 ℃ and 27 ℃ respectively .

导致2301S自交不育的育性转换和无花粉败育类型转换的起点温度分别是23℃和27℃。

The process of pollen abortion begins with vacuole formation and gradual enlargement in the tetrad .

花粉败育的过程从四分体开始，细胞质内液泡逐渐增大，接着细胞器解体，细胞核解体。

Hypertrophy and hyperplasia of tapetum at tetrads stage were related to pollen abortion .

四分体时期绒毡层肥大增厚可能与花粉败育有关。

Pollen abortion occurs at the uninuclear stage of PMC 's.

花粉败育发生在单核小孢子时期。

Cytological Studies on Pollen Abortion Mechanisms of Cytoplasmic Male Sterile Line of T , V and K Types in Wheat

普通小麦T型、V型和K型细胞质雄性不育系花粉败育机理的细胞学研究

Relationship Between Pollen Abortion and Change of Endogenous Polyamines Contents in ' Niitaka ' Pear Cultivars

‘新高’梨花粉败育与内源多胺含量变化的关系

Cytological studies on pollen abortion of male sterile lines with Aegilops bicornis cytoplasm in wheat

二角型小麦雄性不育系花粉败育的细胞学研究

A Cytological Observation on the Pollen Abortion in Male Populus Tomentosa and Study on Transformation with Two Genes of Insect-resistant

毛白杨雄株花粉败育细胞学观察和双抗虫基因转化的研究

Increased peroxidase activity in the floral organs and changes of anther tapetum cells were considered as key factors influencing pollen abortion ;

花器官过氧化物酶活性的提高、花药绒毡层细胞形态的变异是影响花粉败育的关键因素。

It is deduced that the abnormal development of tapetum and the abnormal distribution of Ca 2 + are related to the pollen abortion .

推测绒毡层细胞结构发育的异常和Ca2+的异常分布可能与花粉的败育有关。

Effects of temperature and daylength on fertility of " an Nong s-1 " and the mechanism of its pollen abortion

温度和日长对安农S-1育性的影响及其花粉败育的机理

Pollen abortion of MS-4 was in the single nucleus pollen grain stage after the division of microspore tetrad .

MS-4花粉败育的时期，是在小孢子四分体分开至单核花粉粒时期。

Inheritance of Male Sterility and Cytological Characteristics of Pollen Abortion in Bi-pole-photo-thermo-sensitive Male Sterile Line 337S of Wheat

两极型光温敏小麦不育系337S的不育性遗传及其花粉败育的细胞学研究

The hypothesis that the disturbance of the sequence of gene expression in the period of the development of anther was the most important cause for pollen abortion was posed .

花药发育过程中基因表达程序的扰乱是引起花粉败育的最主要的原因。