Chrysanthemum has head-like inflorescence called capitulum, a dense cluster of stalkless flowers. Capitulum contains two different kind of floret called ray floret and disc floret. Most of Chrysanthemum has both of them.

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The distribution of the qualitative characters The performance of the 39 chief qualitative characters were observed and recorded,according to the test method of morphological characters in the .The results of distribution proportion of each character in cultivars group showed that the distribution of 32 characters(number of ray flower rings,floret curliness,shape of leaf base,size of stipule and so on) were very asymmetrical with near or above 70%cultivars concentrated upon one or two performance, however,the distribution of the other 7 characters(floret type,surface color of outer floret,back color of outer floret,color of disc floret,claw in base of sinus between lateral lobes,stem erectness and stem color) in the cultivars group were relatively symmetrical.

質(zhì)量性狀分布參照《菊花DUS測試指南》的形態(tài)性狀測試方法A片网站打开了视频链接，觀察記錄大菊39個主要質(zhì)量性狀的表現(xiàn)，計(jì)算各性狀的表現(xiàn)式樣在品種群內(nèi)的分布比例精品欧美一区综合在线，結(jié)果顯示舌狀花的重瓣性天天狠天天透天干天天喷水、花瓣曲反狀況、葉片基部性狀国产日韩精品一区二区久久、托葉大小等32個性狀的表現(xiàn)式樣在品種群內(nèi)分布極不均勻九九色精品国偷自产视频下载，接近或超過70%的品種集中在性狀的1種或2種表現(xiàn)式樣中；而花瓣形狀XNXX视频、外花瓣表面色美女黄在线观看免费视频、外花瓣背面色、花中心部顏色求手机在线看黄色视频的网站、葉裂刻基部有無突起欧洲免费网站看黄、莖的曲直性和莖色等7個性狀的表現(xiàn)式樣在品種群內(nèi)的分布則相對均勻。4wwwzaixianavcom。

The specific primer was further designed. Using the ray floret as material, after RT-PCR, T-A clone and sequencing, a 732 bp sequence was obtained.

進(jìn)而設(shè)計(jì)特異引物在线看成年人视频，以非洲菊舌狀花為材料，通過RT-PCR擴(kuò)增并經(jīng)T-A克隆后測序抠逼黄片15.0，獲得一條長度為732 bp的序列免费在线综合精品观看。

To investigate the relationship between delayed fluorescence change and chlorophyll content of Gerbera hybrida ray floret during its development (from P1 period to P6 period), delayed fluorescence analysis of Gerbera hybrida ray floret during its development was done.

以非洲菊Gerbera hybrida為研究對象，對其生長發(fā)育過程（P1-P6期）中外輪舌狀花進(jìn)行延遲熒光（delayed fluorescence9reav， DF）分析亚洲av人妻不卡，并利用激光共聚焦成像系統(tǒng)對其各期表皮細(xì)胞中葉綠素的分布和相對含量進(jìn)行檢測，以研究非洲菊外輪舌狀花發(fā)育過程中延遲熒光改變與其葉綠素變化的關(guān)系人人插人人操人人看。

Ray florets elongated faster than disc florets from phase P3, when tetrads of haploid microspores appeared, and the pigmentation of the ray floret began when the pollen grains showed germination apertures in the disc florets of the first whorl. The effects of light, sugar and GA3 on flower growth and development were investigated in vitro. Inflorescences in the P2 phase or later could grow and bloom in vitro, and sucrose, GA3 and light promoted flowering.

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