| 1. | Will it be sufficient to rely on the heterozygosity of one clone ?
是否依靠一个无性系的杂合性就足够了？ |
| 2. | A compromise has to be made as to the choice of clones to be used as pollen parents .
对于用作授粉亲本的一些无性系的选择，不得不采用一种折衷办法。 |
| 3. | Various clones families could be propagated commercially without having been clonally tested .
在这些家系中不同无性系被大量地繁殖，也没有进行无性系的测定。 |
| 4. | In seed orchards, this is accomplished through the establishment of dilution zones, control of the positioning of orchard clones, plant espacement, etc .
这就是在种子园设立稀释带，控制园内无性系的位置和株行距离。 |
| 5. | Early genetic analysis of some clones in the improved slash pine seed orchard
湿地松改良种子园部分无性系的早期遗传评价 |
| 6. | Cultivation experimentation of walnut early fruiting varieties at central yunnan regions
滇中地区核桃杂交早实优株无性系的种植试验 |
| 7. | Index analysis on comprehensive judgement of drought resistance ability of white poplar hybrid clones
氮素高效基因型杉木无性系的选择研究 |
| 8. | A high efficient callus induction and establishment of regeneration clone of brassica juneas var . tsatsai
榨菜嫩叶高效分化愈伤组织的诱导及无性系的建立 |
| 9. | Different stand condition had significant effects on fiber length and fiber length - width ratio of different poplar clones
结果表明，立地条件对不同的杨树无性系的纤维长度和长宽比具有显著影响。 |
| 10. | Studies on karyotypes wihin clones indicated that all the karyotypes belonged to stebbins ' 3b type . there are different karyotype formulas , polymorphsim of satellite chromosome , variations of chromosomal structure and b - chromosome in clones . chromosomal mutation is important factor of chromosomal structure variations within clones
无性系内核型研究表明：各无性系的核型类型都属于st吮七us的m型、核型公式不完全川同、随体染色体具多忐性，染色体存在结构变异，研究认为造成无性系内核型变异的重要原因是染色体突变。 |
