种性状

A database of germplasm in subgenus Amygdalus (including 20 relative species in other subgenera) was established, which included (1) origin sites, collection places, common names, scientific names and fruit characters of 223 accessions;(2) 40140 data obtained from 180 loci and 22 primers;(3) 9 gene sequences of rDNA ITS in subgenus Amygdalus.

初步建立了桃种质资源数据库，该数据库包括1223份材料(含近缘亚属20个种)的原产地、采集地、中文名称、英文名称、学名及果实性状；2223份材料经22个引物扩出180个多态位点上的谱带，共计40140个数据；3获得桃亚属主要种类的ITS区基因系列9个。

There are abundant cytoplasm resources in wheat submarginal wildgrowing genus, which is benefitful to improve wheat agronomic characters resistibility, and wheat quality.

小麦近缘野生种属含有丰富的细胞质资源，它对小麦的农艺性状、抗逆性和品质都有着极为丰富的正面效应。

With the stable genetic tetraploidy and the fertility in the nature environments, this allotetraploid population presented the key factors to form a new species with 200 chromosomes.

异源四倍体鲫鲤稳定的染色体数目和正常的性腺结构以及自然条件下的生殖传代行为，说明该异源四倍体鲫鲤已成为一个染色体数目为4n=200、遗传性状稳定的新型四倍体鱼群体，具备形成新种所需的关键因素。

With the stble genetic tetraploidy and the fertility in the nature environments, this allotetraploid population presented the key factors to form a new species with 200 chromosomes.

异源四倍体鲫鲤稳定的染色体数目和正常的性腺结构以及自然条件下的生殖传代行为，说明该异源四倍体鲫鲤已成为一个染色体数目为4n=200、遗传性状稳定的新型四倍体鱼群体，具备形成新种所需的关键因素。

Tilth's the quality of a soil which makes it easy to cultivate and easy for the roots of plants to grow.

耕性指的是使土壤易于耕作，根系易于生长的一种土壤性状。

An experiment was conducted in sugarcane field to study the effect of six treatments [vinasse application, CK1 (non-fertilizer) and CK2] on soil physicochemical properties, catalase and polyphenol oxidase activity.

在蔗地上设计不施肥(CK1)、施化肥(CK2)和4个直接喷施甘蔗酒精废液处理，研究不同用量废液施用对土壤理化性状及两种氧化还原酶活性的影响。

Dwarf is one of the excellent agronomic characters for soybean corps.

矮化是一种优良的农艺性状。

Nineteen alloplasmic common wheats whose origins of cytoplasm are Aegilops and nuclear donor F94-111 were taken as study materials, the flag leaf area, net photosynthetic rate of flag leaf were measured and relative Chl. content of flag leaf, and genetic effects of Aegilops cytoplasm were studied. Ae. Squarrosa, Ae.

以19种不同山羊草细胞质异质系与其核供体普通小麦F94-111为材料，测定其旗叶叶面积、净光合速率和叶绿素相对含量，研究不同山羊草细胞质对普通小麦光合性状的遗传效应。

The research result showed that(1) The reclaimed water used didn't influence the sensory quality of a given turf grass tested;under irrigation of reclaimed water,Festuca arundinacea are the best,followed by Buchloe dactyloides and Zoysia japonica;(2) The influence of different types of irrigation water on growth characters of turfgrass is species-dependence;(3) Irrigation by reclaimed water and fresh+reclaimed water increases Na~+,CEC,and total porosity of the turf soil in comparison to fresh water,and improves soil quality.

结果表明：本研究使用的再生水对所供测试绿化草种的颜色、覆盖度、质地和均匀性无不良影响，再生水灌溉条件下，高羊茅表现出了最强的综合耐污能力，其次是结缕草和野牛草。灌溉水类型对于草坪草的生长指标的影响具有种的特异性。再生水灌溉和&清水+再生水&交替灌溉提高了土壤的阳离子交换量和总孔隙度，有利于土壤物理性状的改善。

The biological polymorphism of Cercospora zeae-maydis was studied systematically in the levels of histology, protein and DNA. The major characters in polymorphism of pathogen were listed as follows:(1) The great differences were seen in shapes and sizes of conidiophores, the growth velocity of mycelium and pigment-productivity of colony among pathogen strains. In addition, an albino strain, a kind of mutant, was casually discovered during isolation of pathogen from diseased plants, which supported strongly our previous prediction that there should be some potential genetic variation in Cercospora zeae-maydis.

本研究在组织学、蛋白质和DNA水平上，系统研究了玉米灰斑病菌的生物学多态性，这种多态性主要表现在以下几个方面：①病菌形态学和培养性状多态性：菌株间存在分生孢子形态、菌丝生长速度、菌落产色素能力等方面的差异，该病菌在自然界存在另一种变异类型——白化菌株，说明灰斑病菌的确存在遗传变异的潜能。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

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如果有任何问题，你可以随时联系我。