比如人类胚胎会发育出腮、蹼足和退化的尾巴,映现出远古水生生物的性状。
Human embryos, for instance, develop, then lose, gills, webbed feet and rudimentary tails, reflecting their ancient aquatic life styles.
为了获得与牦牛生长发育性状相关的标记位点,提高牦牛生产性能,加快牦牛育种进程。
In order to obtain growth and development traits associated with the yak DNA marker, improve the performance and speed up the breeding process of yak.
在稳定的土壤发育条件下,土壤剖面有可以鉴别的诊断层,其中一些性状特征沿剖面分异明显。
Soil profiles have the obvious diagnostic horizons and properties and characteristics of soils have distinct change along their profile depth under stable conditions of soil development.
试验研究了开花前不同光照处理对大豆开花后的发育、产量形成和品质性状的影响。
The effects of pre- flowering photoperiodic treatments on the post-flowering-development, yield formation and chemical quality of soybeans were studied.
通过大田试验研究比较了营养袋假植苗与一段式漂浮苗移栽后生长发育、叶绿体色素和经济性状的差异。
In this research, tobacco development, content of chlorophyll and economical character were considered between nourishment-bag temporary planting seedling and float seedling.
脆茎是一个重要的农艺性状,在农业活动中可作为动物饲料,具有潜在的应用价值,但其发育机制尚不清楚。
Brittleness culm is an important agronomic trait that has a potential usefulness in agricultural activity as animal forage while the developmental mechanism is not clear yet.
在免耕直播和免耕抛秧栽培方式下,对18个杂交中稻组合的生长发育特点、产量构成性状进行了分析。
Characteristics of growth, traits of yield components were analyzed for 18 hybrid mid-season rice combinations under no-tillage direct seeding and no-tillage throwing.
结果表明,Y染色体异染色质可能在人的个体发育过程中对形态生理学性状间的表型关系起一种修饰作用。
The results suggest that the Y chromosome heterochromatin appears to have a modifying effect on the phenotypic relationship between morphophysiological traits during human ontogenesis.
比较了两个籼稻品种颖果的发育,籽粒的主要品质性状以及胚乳淀粉体的大小、形状、结构等特性。
A comparison of the caryopsis development, rice quality characteristics and the size, pattern, structure of the endosperm amyloplasts (starch granules) in the two indica rice varieties was made.
在红花石蒜不同生长发育期进行八分法切割繁殖,研究无性繁殖系数和子球生物学性状差异性。
Studies were made on the vegetative propagation coefficient and cormels biological characters using eighth-excision in different development phase of Lycoris radiate.
盐碱土是陆地上分布广泛的一种土壤类型,其不良的理化性状严重影响着植物的生长发育。
The saline-alkali soil is a widespread of soil types in the land distribution, and its serious influence the plant growth and development on physical and chemical characteristic.
研究了五种包衣剂对小麦的生长发育动态及经济性状的影响。
The effect of 5 pelleting materials on wheat development and its economic characteristics was investigated.
禾谷类作物小穗发育存在时空顺序,因而不同部位籽粒的结实特性和籽粒性状存在差异。
Wheat seeds are developed in a spatial-temporal order resulting in different grain weights and protein contents in different positions of spike.
选用中筋小麦品种皖麦41,主要从不同施氮量和追肥时期,研究了氮肥供应对其生长发育、产量形成及产量和主要品质性状的影响。
Studied effects of the nitrogenous fertilizer supply to the Medium gluten wheat Wanmai 41 growths, the factors of the output and the quality character.
这两类植物亲缘关系较近,但地理分布、叶片性状、生长发育特性迥异,引种驯化存在较大差异。
Although they are closely related phylogenetically, there are significant differences in leaf traits and geographical distributions between two genera.
与高粱发育性状、产量性状相比较,揭示了品质性状的遗传特点。
The heritability, genetic correlation, gene effects, combining ability and heterosis of quality traits in Sorghum were studied.
试验结果表明,改良后的不育、保持系育性稳定,农艺性状较好,生长发育正常。
In this study, the new male sterile line and maintainer was developed fertility with some features of better agronomy character, stable fertility and normal growth.
植物根系发育是一个重要的农艺性状。
石春海、吴建国、朱军、樊龙江和吴平,籼稻精米重量性状的发育遗传分析。
Shi C. H. , J. G. Wu, J. Zhu, L. J. Fan and P. Wu, Developmental genetic analysis of milled rice weight at different filling stages in indica rice (Oryza sativa L. ).
研究取得了如下主要结果:1。从荷兰引种的40个郁金香新品种在杨凌地区可以正常地生长发育,表现出了较好的观赏性状,适应本地的气候条件。
The main results were as follows: 1. 40 new tulip varieties introduced from Holland grew normally in Yangling, displayed a good ornamental character and adaptability to the local climatic conditions.
水稻籽粒的主要成分是胚乳,胚乳的发育与产量性状密切相关。
Endosperm is the main part of rice seed. The development of endosperm is closely related with the productive property of rice.
目的研究细胞质抗除草剂基因对谷子性状和发育的影响。
The effect of cytoplasmic herbicide resistant gene in millet plants was studied.
本研究通过三个试验探讨了半胱胺对不同生长模式下肉仔鸡生长发育和屠体性状的影响。
Three experiments were conducted to investigate the effects of cysteamine on the performance and carcass characteristic in broiler chickens under different growth patterns.
除草药肥能促进小麦生长发育,改善经济性状,提高产量。
The fertilizer combined with herbicide could accelerate the wheat growth.
本研究对蒙古高原部分草原区土壤物理和营养性状与根茎禾草生长发育进行相关性比较研究,以揭示土壤对牧草生长发育的影响。
So, it′s very important to study on the comparison about the growth and development of plant and the vegetation of grassland in whole of Mongolia Altiplano.
以性状稳定的4个番茄品系为试材,利用模拟弱光环境研究弱光对番茄生长发育及产量的影响。
The growth and yield during different developing periods of 4 stable inheriting tomato strains were investigated under low light environment (50 % light intensity of control).
以性状稳定的4个番茄品系为试材,利用模拟弱光环境研究弱光对番茄生长发育及产量的影响。
The growth and yield during different developing periods of 4 stable inheriting tomato strains were investigated under low light environment (50 % light intensity of control).
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