发育后期的

Root system and plant growth responds to enlargement of population isochronous, all of them reduced with enlargement of population, root reduced especially.

玉米根系和与地上部的生长发育对群体扩大的反应具有同步的，二者均随群体的增扩大而消弱，以根系的消弱最为明显，且生育后期这种抑制现象越严重。

By contrast with the WPPM, the other treatments, especially the straw mulching, both of the root and the leafage can not get sufficient growth before July because of the low temperature, and after then, there was plentiful rainfall, so the leafage and stems still accumulated the assimilation products that should be distributed to ear. that led to the reductions of their economic outputs.The yield of maize covered with WPPM was the highest.

秸秆覆盖和露地的玉米在整个生育期内，尤其是秸秆覆盖，出现了各器官生长发育紊乱(如根系、根叶组等生长不充分和茎、穗叶组等过剩生长)的现象，导致了生育后期茎叶与穗争夺有限的光合产物，干物质积累不适时、分配不合理和最终经济产量的降低。

The soil erosion process on the slope was clearly divided into sheet erosion stage, rill erosion developing stage and rill erosion stable stage. Before lOminutes of rainfalls, the percentage of sheet erosion amount to total erosion amount was more than 90%, and it indicated that sheet erosion happened on the slope. This percentage sharply decreased before SOminutes of rainfall time, on the other hand, the percentage of rill erosion amount to total erosion amount increased in curve form with rainfall time.

在降雨前10min左右，面蚀贡献率约占坡面侵蚀总量的90%以上，为面蚀阶段；随着降雨时间的延续，面蚀贡献率先急剧递减最后在第30min左右基本达到稳定，细沟侵蚀贡献率则出现相反趋势，此为细沟发育阶段；降雨后期，面蚀和细沟侵蚀贡献率的变化趋势逐渐变缓且基本达到稳定。

The result showed that the key stage of sterility was the late binucleate stage.2.158 candidate bands generated by cDNA-RAPD (random amplified polymorphic DNA) were recovered from denatured polyacrylamide gel.

主要结果如下： 1、对喷施化学杂交剂BAU9403的农大3159进行细胞学水平观察发现，花粉的发育加快，提早解体，败育发生的关键时期是花粉二核期后期。

The present study suggested that high levels of plasma IGF-1 of perinatal ewes may related to the growth and development of fetal sheep; cholic acid load may affect IGF-1 production in liver and/or the regulatory function of placenta.

本研究提示妊娠后期绵羊母体血浆高水平的IGF-1可能与胎儿生长发育有关；胆酸负荷可能影响了妊娠母体的肝功能或胎盘的调节作用。

Dorsal enclosure go along the blastokinesis anaphase andaccomplishes at the same time at 48th hour; The embryo eats up yolk unenveloped into themidgut before hatching.

背合在胚动的后期进行，在48h胚动与背合同时完成；在桔小实蝇卵孵化前，胚胎的发育主要是通过未包入中肠的卵黄供给营养。

When the mevinphos was utilized for a long time in highland barley field, the young-root of next-season cole shortened 1.9~2.0cm and fresh weight decreased 0.13~0.14g per individual plant compared with the control. Low-tillage in time after autumn-harvest showed that the weed seeds in the ground surface were harrowed into the tilth of 0~10cm. Early-low-tillage in spring-sow of the next year induced weed seeds of soil surface to germinate and come out ahead. After 10 days, tillage-sow can decrease about 40% weeds. Compared to the normal plough-row, direct late-tillage-row was postponed 10 days, and can decrease about 30% weeds. In the seedling period or later, rudimental weed seeds were handled with a hoe, which led to better cure and control effects and had more benefits to the young seedling growth and yield of the next-season crop.

研究结果表明：氟乐灵在油菜田长期使用时，土壤残留农药抑制下茬青稞幼根生长，幼根较对照株缩短3.0~3.1cm/株，鲜重量减少0.19~0.20g/株；甲磺隆在青稞田长期使用时，下茬油菜幼根较对照株缩短1.9~2.0cm/株，鲜重量减少0.13~0.14g/株；秋收后及时浅耕可将落入地表的杂草种子全耙入0~10cm耕层内；翌年春播早浅耕可诱发土壤表层的杂草种子提前萌发出苗，10d后耕种，能防除40%左右的杂草株数；较正常播种期推迟10d后直接晚耕播种，可防除30%左右杂草株数；苗期或后期拔出残余杂草种子时，除草效果理想，对下茬作物幼苗生长发育及产量无任何不良影响。

Results VEGF-C and VEGFR-3 are all expressed on both mesenchymal cells and vascular endothelium of the embryos during early period. In middle and latter period, VEGFR-3mRNA is mainly expressed on cell plasm of alimentary canal, but it has no expression on vascular and lymphatic endothelium; The expression of VEGFR-3 is extensive and positive expression is seen on the vascular and lymphatic endothelium.

在胚胎中、后期消化道组织中VEGF-C主要表达于消化管壁组织细胞以及肠系膜内，在血管和淋巴管内皮细胞则无表达；VEGFR-3亦表现为广泛的表达，于血管和淋巴管内皮细胞可见阳性表达，并随着胚胎的发育，其在淋巴管内皮细胞的阳性表达率明显增加。

Department of Breast Surgery, the First Afficiated Hospital of China Medical University, Shengyang 110001, China Abstract Gynaecomastia, a benign enlargement of the male breast as a result of proliferation of the glandular component, is common in neonates,adolescents and older men.

男性乳房发育症是由于腺体组织的增殖导致的男性乳房良性的增大，常见于婴儿期、青春期及中年后期。

The dissertation of this biologist, produced in the Department of Genetics of the School of Sciences of the University of Navarra, and in the Institute of Human Genetics of the University Hospital of Schleswig-Holstein, en Kiel, is oriented towards the study of the genetic base of this cancer, and the posterior development of cytogenetic diagnostic strategies for the detection of alterations with prognostic value.

Borja Sáez Ochoa生物学家在Navarra大学科学学院遗传部和德国Schleswig-Holstein医院人类遗传研究所做的论文主要着重于对多发性骨髓瘤遗传学基础研究和后期发育的细胞遗传学诊断策略的研究。

This paper analyzes the compound attractor structure of a new three-dimensional autonomous chaotic system.

分析了一种新的三维自治混沌系统吸引子的复合结构。

ON shut rivals out of their transmission systems and shy away from reinvesting their profits in network improvements.

ON将竞争者挡在了其输送体系之后，并不愿将其收益再投资于网络改建工作。