Observation was made on the cell morphology of the microspore development of the sterile and fertile plants in the Aibai wheat.

對矮敗小麥中的可育株和不育株進行了小孢子發(fā)育過程的細(xì)胞形態(tài)學(xué)觀察变态另类一区二区三区不卡。

Several polar phenomena in microspore and pollen were observed.

在小孢子和花粉粒發(fā)育過程中，有明顯極性存在国产日韩欧美丝袜。

On the contrary,a few of microspore could show thechromosomes,the different characteristics of mitosis are very difficult to exam-ine.

但是过产自拍视频在线，低溫預(yù)處理呈現(xiàn)出染色體的小孢子數(shù)目較少，有絲分裂的各個時期不易觀察到欧洲免费A区B区视频。

Rape have established regeneration system of cotyledons, hypocotyls, protoplasts and microspore culture.

油菜已經(jīng)建立了子葉性a视频在线观看、胚軸、原生質(zhì)體及小孢子培養(yǎng)的再生體系免费无码大黄网站在线观看。

In this study, A2V4/B2V4 were used to study the processes of microspore abortion during anther development in A2CMS.

以A2V4/ B2V4為材料，對A2CMS的花藥發(fā)育及小孢子敗育過程進行了細(xì)胞學(xué)觀察研究91丨九色丨喷水。

Microspore development of the same bud in pepper showed graduality to some extent.

辣椒同一花蕾小孢子發(fā)育存在一定程度的漸續(xù)性即不同步玖玖在线资源www网。

In vitro anther culture, experience shows that, in order to enhance the induction of regeneration, it is important to select appropriate developmental stage microspore vaccination.

花藥離體培養(yǎng)的經(jīng)驗證明，為了提高再生植株的誘導(dǎo)率美足AV无码一区二区，必須選擇發(fā)育時期適宜的小孢子接種黄色网站aaaa。

The influence factors to microspore embryogenesis of non-heading Chinese cabbage were studied through seventeen genotypes.

以17個不同基因型的不結(jié)球白菜為供試材料，對影響小孢子胚胎發(fā)生頻率的若干因素進行了研究久久黄色国产精品。

Pollen cones solitary or clustered, with numerous spirally arranged microsporophylls; microsporophyll with 2 microsporangia; pollen usually 2-saccate (nonsaccate in Cedrus , Larix , Pseudotsuga , and most species of Tsuga ).

雄球花單生或者叢生www…爱爱…com，有許多螺旋排列的小孢子葉；每個雄蕊有有2個花藥国产精品久久无码HD毛片；花粉通常有2個氣囊狀(無氣囊亚洲欧美V视色一区二区，如Cedrus，Larix国产激情无码视频一区二区三区，Pseudotsuga 和大多數(shù)的Tsuga)午夜日韩电影免费观看。

Small cell of the mother after the cytoplasm of simultaneous type, tetrad of epidermis, mature pollen of two cell types.

小孢子母細(xì)胞減數(shù)分裂后胞質(zhì)分裂為同時型，四分體為四面體型排列在线视频色九色，成熟的花粉粒為二細(xì)胞型国产大片免费视频在线观看。