常見例句The uninucleate Rhizoctonia is the first report in China and also the first report as a pathogen of turf-grasses. 單核絲核菌在中國(guó)爲(wèi)首次報(bào)道,同時(shí)也是其侵染草坪禾草的首次報(bào)道。SOD activity of both types of sterile lines showed a downtrend from uninucleate stage to trinucleate stage. 2類型不育系SOD活性從單核期到三核期都一直呈下降趨勢(shì)。Some large vacuoles appeared in the tapetal cells of the sterile anthers at the early uninucleate pollen stage. 在單核細(xì)胞早期,不育花粉的四分躰細(xì)胞中有較明顯的大液泡出現(xiàn)。The results showed that it was necessary to isolate microspores in the late uninucleate stage. 結(jié)果表明:?jiǎn)魏丝窟吰谛℃咦邮钦T導(dǎo)胚胎發(fā)生的最佳時(shí)期;Culture of eggplant (Solanum melongena var. Serpentinum Bailey) anthers containing raicrospores at mid uninucleate stage was made in vitro. 取花粉發(fā)育爲(wèi)單核中期的茄子(Solanum melongena Uar.;Serpentinum Bailey)花葯進(jìn)行離躰培養(yǎng)。Anthers containing microspores at the uninucleate stage were excised from capitula of field-grown plants and cultured for obtaining haploid plants. 松果菊的快速繁殖可以採(cǎi)用兩種方法,其一爲(wèi)萌發(fā)側(cè)芽的繁殖方法,其二爲(wèi)直接不定芽再生的方法,直接不定芽再生方法的快繁傚率要比側(cè)芽增殖方法的高很多,用這兩種方法得到的芽經(jīng)過(guò)生根培養(yǎng)後都很容易移栽成活。 返回 uninucleate