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Sweet corn ; New gemplasms ; Biochemical constitution ; Heterotic rate ; Genetic control

甜玉米;新种质;生化成分;优势率;遗传控制

The results showed that pingshandahuang, junlianxuesi and junliandabaimaya had greater potential trend, 13 landraces were divided into five primary heterotic groups.

结果表明:屏山大黄、筠连血丝和筠连大白马牙具有较大的利用潜势;13个地方种质可分为5个初级杂种优势群。

Clustering results showed that the clusters were not corresponding to heterotic groups and pedigrees,which suggested that the A-PAGE of seed storage proteins might not be a good method for large-scale analysis of genetic diversity and heterotic grouping in maize germplasm.

利用盐溶蛋白多态性完成的聚类分析结果和自交系系谱及杂种优势群之间没有明显的对应关系,表明储藏蛋白A-PAGE方法对于大规模玉米种质资源的遗传多样性分析和类群划分可能存在局限性。

The rate of maize yield growth has being declining due to narrow genetic background and limited new heterotic patterns since 1970s.The role of tropical and subtropical maize germplasm in maize improvement was discussed in this paper.

但70年代以来我国玉米增产率呈下降趋势,玉米生产一直处于徘徊状态,其主要原因是国内种质资源匮乏,缺乏新的杂种优势群和杂种优势模式。

A soft, steel-gray to black, hexagonally crystallized allotrope of carbon with a metallic luster and a greasy feel, used in lead pencils, lubricants, paints, and coatings, that is fabricated into a variety of forms such as molds, bricks, electrodes, crucibles, and rocket nozzles.

石墨:一种质软、钢灰黑色、有金属光泽和滑腻感的碳的六方晶形的同素异构体,用于铅笔、滑润剂、颜料和涂层,可被制成多种形状,如模子、砖块、电极、坩埚和火箭发动机喷管也作 black lead , plumbago

But for the genetically heterogeneous accessions, the number and frequency of hordein spectrum biotypes changed.

说明某些大麦异质性种质在繁殖更新过程中发生了遗传完整性变化。

Genetic Integrity of 20 Barley (Hordeum vulgare L.) Germplasm Resources Based on Hordein Analysis

基于醇溶蛋白的20份大麦种质资源遗传完整性分析,王芳;卢新雄;马晓岗;迟德钊;张志娥;陈晓玲-66文免费论文库,大学生论文库

The course of the database design on the southwest wild living idioplasmatic resource information system is mainly introduced, as well introduced the academic guidance and technique.

本论文主要介绍了种质资源数据库的设计过程,同时对用到的一些理论指导和技术也作了介绍。

The target of the southwest wild living idioplasmatic resource information system is offering the decision information for the wild living protection in the southwest.

摘 要:西南野生生物种质资源信息系统的最终目标是为西南地区野生生物保护提供决策信息。

The aim of the paper is to provide the base material for landscape and idioplasmic resource plan, forest management and sustainable exploitation .

该文的研究结果可望为千岛湖水源涵养林的种质资源和景观资源的合理规划和目标管理以及森林资源的可持续利用提供基础资料。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。