| 1. | It is essential that improved material obtained through recurrent selection be introduced into production orchards as soon as possible .
重要的是将经过轮回选择得到的改良种苗尽快地应用于生产性种子园。 |
| 2. | He named this particular procedure " genotypic recurrent selection "
他把这一特殊的处理方法称为“遗传型轮回选择” 。 |
| 3. | Study on improvement effect in shenzong co hc2 fc3 population in agronomic traits by means of recurrent selection
群体在轮回选择作用下农艺性状的遗传改良效果的研究 |
| 4. | The principal approaches include the determination of breeding targets ; classification of parents ; establishment of basic population , recurrent selection population and improving population , screening and rational arrangement of fine varieties ; and combination of fine varieties with reasonable cultivation method
主要包括制定育种目标，进行亲本分类，构筑基础群体，组建轮选群体，建造改良群体，筛选优良品种，合理布局品种，以及良种良法配套。 |
| 5. | Four japonica restorer lines with the restoring genes for the genetic - cytoplasmic male sterility including jijing 85 , ji 524 , e180 and e385 have been successfully developed through the breeding method of recurrent selection , using eight japonica ptgms lines and 28 elite japonica varieties or lines selected from the north cold rice growing area in china as the breeding materials
摘要利用8份光温敏核不育粳稻材料及28份北方寒冷稻作区优良粳稻品种（系）作为原始亲本开展轮回选择育种，育成了吉梗85 、吉524 、 e180和e385等4个具有三系恢复基因的粳型恢复系。 |
| 6. | These restorer lines showed both stable and uniform agronomical characters and a good restoring ability , and their testcrossing f1 hybrids had a strong heterosis in grain yield , which indicates that the recurrent selection provides an effective way in breeding of three - line japonica restorer lines and makes it possible the commercial production of three - line japonica hybrid rice in north cold rice growing area in china
这些恢复系性状稳定，恢复度好，测交f1代产量优势明显，表明轮回选择为粳稻恢复系选育提供了一条新的技术途径，并使三系杂交稻在北方寒冷稻作区的大面积推广成为可能。 |
| 7. | Excellence breeding technology and system have been built using dwarfing - sterile wheat and recurrent selection technology for longterm study and trying , and important progress have made in variety breeding , germplasm creation , transfer of characteristic inherit of dwarf male - sterile wheat and physiology bio - chemical etc
矮败小麦育成后，经过中国农科院等科研单位多年的研究与摸索，逐步建立起一套科学、方便、实用的矮败小麦轮回选择技术体系，并在品种选育、种质创新、矮败小麦遗传特性转移、生理生化等方面取得了很大的进展。 |
