查询词典 seed coat

Rapid nutrient accumulation as well as higher ABA content in seed coat and lower GA3/ABA ratio both in seed coat and embryo had significant effect on desiccation tolerance and shallow dormancy of mature Aesculus chinensis seeds during last stage of seed maturation.

种子成熟末期未经历明显的脱水过程，但此期间种子内营养物质的迅速积累以及种子脱落时种皮中较高的ABA含量、种皮和种胚中较低的GA_3／ABA值均对种子的耐脱水性和轻度休眠习性的形成起到重要的作用。

In order to study the effects of salt treatment with different NaCl concentration on the seed germination and the content of Na~+ and K~+ in the seed coat and embryo of Hibiscus hamabo Sieb.et Zucc., the seeds were cultivated by 1/4 Hoagland nutrition solution with 0, 50, 100, 150 and 200 mmol·L~(-1) NaCl, the germination rate and imbibition rate were measured every day, the content of Na~+ and K~+ in seed coat and embryo was determined when the seeds were treated for 5 and 10 days respectively; and after 15 days , the ungerminated seeds in 1/4 Hoagland nutrition solution with NaCl were cultivated by 1/4 Hoagland nutrition solution without NaCl.

用NaCl浓度为0、50、100、150和200 mmol·L~(-1)的1/4 Hoagland营养液培养海滨木槿Hibiscus hamabo Sieb.et Zucc。

In this paper, we review recent advances on mucilaginous seeds, with emphasis on （1） chemical composition of seed mucilage;（2） morphological characteristics of mucilaginous seed coats and mucilage;（3） biochemical processes in and genetic regulation of differentiation of mucilage-secreting cells, mucilage biosynthesis and mucilage secretion in the seed coat; and （4） ecological significance of seed mucilage.

为此，在广泛查阅相关文献的基础上，该文综合分析了国内外种子粘液的研究进展，并重点探讨了以下几方面问题：（1）种子粘液的化学成分：（2）粘液及粘液种皮的形态特征：（3）粘液细胞分化与粘液生物合成的细胞学及基因调控机制以及粘液的释放方式：（4）种子粘液的生态学意义。

Seed industry of large turn, it is big trend to grow industry develop that almightiness turn; The farm crop seed industry turns and can make section taught to grow , the seed produe, sprocess and promote to expand the section the close uniting with the agriculture, becoming the technology lead first the type seed industry group, uniting the developmend meet the next the new species that modern agriculture need when producing , new technique new product of market mechanism term establishing to rise to face to the domestic and international market teach , heavy, push, the integral whole of turns of carry camp mechanism, end guarantee to teach to grow the section can stabilize a ground of growing the high producing, superior quality, many antis of new species, good and new species in distribution in section in seed.

种业的大型化、全能化是国际种业发展的大趋势；农作物种子产业化可以使科研育种、种子生产、加工、经销和农业推广部门紧密联合成科技先导型种子产业集团，联合开发符合市场机制条件下现代农业生产所需要的新品种、新技术、新产品，建立起面向国内外市场的育、繁、推、销一体化的运营机制，最终保证育种科研能稳定地培育出高产、优质、多抗的新品种，种子部门经销优良的新品种。

Tested results and analysis show: seed condition has a significant effect on bulk density, a comparatively significant effect on drag coefficient, and little effect on particle density and restitution coefficient of rice seed; moisture content significantly affects bulk density, particle density and drag coefficient of coated rice seed; variety of seed has little effect on the properties of coated rice seed.

试验结果和分析表明：稻种状态对容积密度影响显著，对漂浮系数影响比较显著，对籽粒密度和恢复系数影响较小；含水率对包衣稻种的容积密度、业粒密度和漂浮系数影响显著；品种对包衣稻种的物理特性影响较小。

Integrate low temperature and ultra-dry to excogitate better method to prolong seed longevity, at the same time, we found out the optimal method of ultra-dry preservation, screen out to the excellent desiccant with low cost and good effect, validate the method of ultra-dry can use to deal with and conservation even more large numbers of tobacco seed, yet explored seed vigor comedown rule of tobacco seed, that avoid seed vigor loss prematurely.

在此基础上，把超干燥与低温保存有机地结合起来研究，找出了延长烟草种子寿命的更好方法，找出最佳的超干燥保存方法，优选出成本低、效果好的干燥剂，验证了超干燥也可用于更大量烟草种子的处理和保存，初步探明了烟草种子的活力丧失规律，有效预防了种质资源的失传，最大限度地延长种子保存寿命达25年以上。

After reviewing the previous dissertation on quantitative characteristic trait of recalcitrant seeds, three aspects of quantitative characteristic trait of seed recalcitrant were defined, which are interspecific aspect, intraspecific aspect and individual developmental aspect. And it was supposed that seed recalcitrance was a compound characteristic, with its core composed of desiccation tolerance, low-temperature tolerance and storage tolerance at least, and its concomitants composed of seed size, 1000-seed weight, moisture content at shedding, non-dormancy, systemic taxonomy, ecological and biochemical aspects. Because these core and concomitants are all gradual, transitional and quantitative, it was inferred that seed recalcitrance was a compound quantitative trait.

文章简要概述了从顽拗型种子到顽拗性种子这样一个对顽拗性种子认识提高的过程，在综述了前人关于顽拗性种子数量性状特征论述的基础上，把种子顽拗性的数量性状特征划分为种间、种内和个体发育三个层面，提出种子顽拗性是一种复合性状，其核心至少包括脱水耐性、低温耐性和贮藏耐性三方面的内容，其伴随性状包括种子尺度、千粒重、初始含水量、休眠特性、分类地位、地理分布和保护性物质含量等多方面的内容，而且这些核心内容和伴随性状的每一个方面都具有渐变的、过渡的、数量型的特征，从而阐明种子顽拗性是一种复合数量性状。

The Hg could inhibit seed germination of Alisma orientale Juzepcz, no seed germination was observed under the Hg solution in this experiment, the reason needs to be studied in the near future. Atrazine along concentration gradient could stimulate seed germination except the low concentration. The seed germination increases with the increasing atrazine content. When the atrazine concentration reaches 50mg/L, the seed germination reaches its peak.

结果表明：重金属汞对泽泻种子有抑制，未能诱发出芽来，其根源还有待于进一步的研究；有机污染物阿特拉津在一定浓度下却促进了泽泻种子的萌发，除了低浓度的T1处理比CK发芽率低以外，随着浓度的增加，发芽率逐渐升高，当阿特拉津浓度为50mg/L时，为泽泻种子发芽率最大值。

Compared with the seed rain, the quantities of the perfect and geminated seed were less 2.15 seeds m^(-2) and 0.20 seeds m^(-2) respectively, Seed survival rate and the proportion of seed damaged by animals were 13.51% and 45.90%, respectively, which showed that animal damage was the main cause of seed loss.

土壤种子库种子存活率仅13.51%，动物捕食率达45.90%，说明动物的捕食和搬运是福建青冈种子缺失的原因之一。

With the seeds from nine natural Cyclocarya paliurus populations as test materials, their phenotypic traits, including 1000-seed weight, seed size, seed diameter, seed thickness, and seed diameter/thickness ratio, were investigated, and the phenotypic diversity among and within the populations were studied by the methods of ANOVA analysis, hierarchical cluster analysis, and correlation analysis.

以青钱柳分布区内的9个天然群体种子为试材，对种子千粒重、体积、直径、厚度和径厚比5个表型性状进行了系统的比较分析，采用方差分析、相关分析及聚类分析等方法对群体间和群体内的表型多样性进行探讨。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"