1) Early breeding
早期选种
3) Early selection plan
早期选种方案
4) earlier mating
早期配种
5) early selection
早期选择
1.
Growth variation of Picea koraiensis and early selection;
红皮云杉生长变异与早期选择的研究
2.
On the basis of review of sexual improvement,the paper discusses the possibility for clone improvement and corresponding key issues,such as establishing of breeding groups,determining of early selection age and improving of clone propagation.
针对这一问题,在回顾有性改良工作的基础上,对无性改良的可行性和关键问题进行了探讨,如育种群体的建立、早期选择年龄的确定、如何提高无性繁殖系数等。
3.
By sixyear investigation into survival rate of forestation,growth,primary form quality and character,adaptability and ability to insectresistance and diseaseresistance,their status of heredity and variance have been primarily mastered,which provides scientific foundation for early selection of heredityimproved of poplar.
用我国第一处黑杨基因库初选出的20个黑杨新无性系建立试验林,经6a对其造林成活率、树高和胸径生长量、主要形质性状、适应性和抗病虫能力的考察,基本掌握它们的遗传变异状况,为杨树遗传改良的早期选择提供了科学依据;运用综合指数选择法,为该区域选出了80-I-11、w-46、80-I-6、I-925等4个优良无性系。
6) early stage screening
早期筛选
1.
In order to establish the early stage screening system of maize salt tolerance,three inbreed lines were selected,including Dan 340,Mo17,and TL94B,10 concentration grads of NaCl stress experiments were carried out indoors by sand cultivation in this research.
耐盐性鉴定是植物耐盐分子育种的重要环节,为了建立玉米耐盐性鉴定的早期筛选体系,选用了丹340,Mo17和TL94B 3个自交系,设置了10个NaCl浓度梯度,并通过室内沙培盐胁迫处理实验,对出苗率、6天株高、10天株高、14天株高、地上部和根系鲜重等性状进行了考察。
补充资料：选种
1.选择动物或植物的优良品种，加以繁殖。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条