后代群体 meaning in English
progeny population
Examples
- In order to compare the differences of genomic dna between the fertile line and the sterile line with aflp technique , genomic dna bulks of the fertile and the sterile lines of which were built up . by using different primer combinations , some polymorphism bands were determined
本研究以‘矮脚黄’白菜核不育两用系的测交后代群体为实验材料，利用aflp指纹图谱技术研究了可育系与不育系基因组dna多态性差异，并对差异条带进行了克隆、测序。 - Abstract : the main characters and seed set of bc1 ， bc2 ， bc1f2 from ms line back - crossing with the pollen of hybrid rice were studied . the appearance of a large number of self fertile plants in ms line was analyzed . the effect of introgression of restoring genes on ms line purity and hybrid yield in indica and japonica rice was discussed . it was pointed out that “ iso - cytoplasm restorer line ” was seriously reducing the purity of ms line and that hybrid rice was unsuitable for isolation zone in the seed production fields
文摘:研究了杂交稻花粉对母本不育系回交后代群体bc1 、 bc2 、 bc1f2的主要农艺性状和育性表现，分析了不育系中出现大量自交结实株的原因，讨论了恢复基因渗入对籼、粳不育系纯度和杂交稻产量的影响，指出“同质恢”对降低不育系纯度的严重性和杂交稻作制种田隔离区的不合理性。 - The space distribution of pigment gland density on eleven places was analyzed by allotetraploid of ( g . arboreum g . bickii ) and varieties with pigment gland of g . hirsutum g . barbadense and the progeny population which is crossed by allotetraploid of ( g . arboreum g . bickii ) g . hirsutum and ( g . arboreum g . bickii ) g . barbadense
摘要利用（亚洲棉比克氏棉）异源四倍体和陆地棉、海岛棉有色素腺体品种以及由（亚洲棉比克氏棉）异源四倍体为母本，以陆地棉和海岛棉有色素腺体品种为父本，组配成的杂交后代群体，对植株上十一个部位色素腺体密度在群体内的分布进行了初步分析。 - Sweetpotato pollens killed by u . v . didn ' t sprout ; 2 . normal pollens sprouted ; 3 . pollens of 5x mixed with recognition pollens attached and sprouted much ; 4 . in the negative - cross , sweetpotato pollens attached and sprouted much on the stigma of 5x ; 5 . in the possitive - cross without recognition pollen , 5x pollens few attached and sprouted ; 6 . in the treatment of pgr ( twice ) , globular - embryo observed on 15 days after pollination ; 7 . ovule obtained by intercross germinated on the medium ; 8 . plantlet from intercross ovule grew on the medium ; 9 . seeds obtained by opening pollination ; 10 . tubers of hybrids from 5x crossed by sweetpotatos for two generations
紫外线杀死的甘薯花粉在亲和柱头上不萌发； 2 .未经紫外线处理的甘薯花粉在柱头上正常萌发； 3 .在蒙导花粉作用下，五倍体的花粉在甘薯柱头上大量附着和萌发； 4 .反交组合甘薯花粉在五倍体柱头上大量附着和萌发； 5 .正交组合无蒙导花粉时五倍体花粉少量附着和萌发； 6 .生长调节剂二次处理后，授粉后15天所见的球形胚； 7 .杂交胚珠在培养基上萌发； 8 .杂交胚珠培养成苗； 9 .放任授粉收获的大量种子； 10 .五倍体与甘薯杂交两代产生的后代群体的结薯性。