Due to effect of temperature, the differentiation of clinandrium began when bud were about 1.6-2 mm, after then all buds differentiated clinandriums, and one anther could differentiate to 1 ~ 4 clinandriums in which there were microspores which in stage from tetrad to mature pollen grains.

由于溫度的影響日本公共厕所www撒尿，1.6～2mm大小的花蕾開始出現(xiàn)花粉囊的分化，以后各大小的蕾都分化了個數(shù)不等的花粉囊在线日本成本人视频网站，一個花藥可分化出1～4個花粉囊永久免费AV无码网站大全，可見到自四分體到成熟花粉粒的各階段小孢子。

The cytokinesis of microspore mother cell during meiosis is of simultaneaous type.

小孢子在四分體中的排列方式屬四面體型精品亚洲黄色片。

It is concluded that there are three reasons resulted in male-sterility by floral organs abormality as follows :(1) The stomium enlongates faster;(2) Anther filaments do not elongate sufficiently to position the locules above the stigma at anthesis;(3) The anther locules do not dehisce at the time of flower opening (although limited dehiscence occurs later).

用石蠟切片技術(shù)国产污片免费网站，在光學(xué)顯微鏡下觀察擬南芥部分雄性不育材料小孢子發(fā)育過程和各時期的花形態(tài)特征，分析雄性不育的原因手机黄网欧美高清。從花表型上分析導(dǎo)致雄性不育的原因有三個方面：（1）柱頭伸長過快久久久丰满老熟妇；（2）花藥生長過慢；（3）花藥開裂晚www看黄网站www。

In Peiai 64S, the microtubules showed abnormal patterns of distribution from pre_meiotic interphase to metaphase Ⅰ. For example the broad band of perinuclear microtubules seen at diakinesis in IR36 was much disorganized and loosened in Peiai 64S.

(1)在偶線期具極性分布的微管分布不存在免费无码动漫AⅤ片在线观看；(2 )在小孢子母細(xì)胞減數(shù)分裂期間的細(xì)胞內(nèi)出現(xiàn)許多特別粗的微管束欧美操逼视频看看；(3)在終變期圍繞核的微管寬帶結(jié)構(gòu)松散及內(nèi)含微管密度低在线看国产v黄。

Thress homologous chromosomes of trisomics associated as a trivalent or a bivalent and a univalent or three univalent during diakinesis and metaphase 1 ;Laggard chromosome and univalent separated in advance at anaphase I ,leading to distribution of 10-1-10,9-12,11-11,10-2-10,10-12,10-10,9-1-11 besides 10-ll;And there was distribution of 11-11-10-10, 10-10-10-12, 10-10-10-11, 10-11-11-11, 11-11-10-9, 10-10-10-10, 9-12-10-10, 9-9-11-11, 11-10-10-9, 12-10-9-11, 11-9-9-13, 10-10-10-9 at anaphase II ;n l microspore frequency were different of four trisomics.

三體在終變期和中期Ⅰ，3個同源染色體聯(lián)會成三價體91视频91自拍本月收藏，或2個聯(lián)會成二價體和1個單價體不卡av在线播放，或3個都為單價體；后期Ⅰ出現(xiàn)落后染色體或單價體提前分離女女激情性爱在线观看，導(dǎo)致除10-11式分離外A一级电影国产精品无码一本，還有10-1-10，9-12欧美激情文学，11-11片黄色国产毛片，10-2-10，10-12性交无码视频一区二区，10-10色哟哟网站进入，9-1-11等不均衡分離方式；后期Ⅱ有11-11-10-10丝袜欧洲另类自拍视频在线，10-10-10-12欧美精品性爱，10-10-10-11，10-11-11-11，11-11-10-9裸体美女让男人桶出白浆，10-10-10-10日韩久久久精品，9-12-10-10，9-9-11-11亚洲男人社区，11-10-10-9欧美不卡高清视频，12-10-9-11，11-9-9-13欧美性爱日，10-10-10-9等分離方式黄片一级欧美；4個三體中的n 1小孢子頻率不同。

In tobacco, a typical dicotyledon plant, the kinase distributed widely in all cells including epidermis, vascular bundle and mesophyll cells.

與小孢子發(fā)生和花粉粒的成熟密切相關(guān)的絨氈層中也分布有高水平的鈣調(diào)素色哟哟最新网站入口，直到最后解體消失日韩精品毛色视频在线播放网站。

The aim of this study is to reveal the disinfectants and disinfection methods, medium components, and embryoid culture method on dissociative microspore culture.

［目的］研究消毒處理方式、培養(yǎng)基成分和胚狀體培養(yǎng)方法對油菜游離小孢子培養(yǎng)的影響猛男好爽好爽男人天堂。

Objective］The aim of this study is to reveal the disinfectants and disinfection methods, medium components, and embryoid culture method on dissociative microspore culture.

［目的］研究消毒處理方式人人操人人插人人搞、培養(yǎng)基成分和胚狀體培養(yǎng)方法對油菜游離小孢子培養(yǎng)的影響。

The primary results could be summarized as follows: The result of flower developing showed that the flower bud morphological differentiation way is form a leaf bud with a flower bud; The process of microspore occurring and male gametocyte development is normal,the development of anther wall is elementeny type.

結(jié)果如下：花發(fā)育的研究表明久久不用播放器的一级片，安祖花的花芽分化是以一葉芽一花芽的方式進(jìn)行国产白领诱惑在线观看视频；小孢子與雄配子體的發(fā)育過程均屬于正常發(fā)育，花藥壁的發(fā)育屬于基本型十八岁以下禁看黄，絨氈層細(xì)胞屬于腺質(zhì)絨氈層又黄又高潮水又多的视频，成熟的花粉粒為2-細(xì)胞型。

The microsporogenesis and development of male gametophyte in Tsoongiodendron odorum Chun were observed by using the paraffin section method.

采用石蠟切片法對觀光木的小孢子發(fā)生和雄配子體發(fā)育進(jìn)行了解剖學(xué)研究最新欧美精品免费A片在线播放。