根
- 与 根 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The results showed that soil type had significant effects on the root morphology and nodule traits of test varieties. In alfisol, the root dry mass, root length, and root surface area of test varieties were greater at the fifth trifoliolate stage and bloom-beginning stages while smaller after seed-beginning stage, compared with those in mollisol, and the average root diameter after seed-beginning stage was higher in alfisol than that in mollisol. Soil type did not affect root-shoot ratio. The nodule number after seed-beginning stage was much smaller in alfisol than in mollisol, while the nodule fresh mass and the mass per nodule were in adverse.
结果表明:土壤类型对大豆根系形态及结瘤性状均有显著影响,在第5片复叶展开期和初花期,暗棕壤的根系干质量、根长和根表面积低于黑土,而在鼓粒初期后高于黑土,暗棕壤的平均根直径在鼓粒初期后也高于黑土,但土壤类型对根冠比的影响不大;暗棕壤的根瘤数在初花期后明显低于黑土,但根瘤鲜质量和单个根瘤质量高于黑土。
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In addition,during the investigation of cadmium different levels distribution in Typha angustifolia Linn,we find that:l as far as the accumulate ability of different organ in Typha angustifolia Linn are concerned,root sheath leaf.
此外对狭叶香蒲体内镉的化学形态分析表明根和叶中均以氯化钠提取态最高,但在根中以去离子水和乙醇提取态存在的镉含量总和大于氯化钠提取态,表明镉在根与叶的化学存在形态有所不同。
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Results:Fitfilling 392 Root canals(92.24%),underfilling 23 root canals(5.41%),abovefilling 10 root canals.
结果:适充392个根管(92.24%),欠充23个根管(5.41%),超充10个根管(2.35%)。
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The results showed that in the growth period of R. glutinosa, soil ferulic acid, vanillic acid, and vanillin contents had a persistent increase, while β-hydroxybenzoic acid content increased first but decreased then. The addition of ferulic acid (8 μg·ml-1), vanillic acid (08 μg·ml-1), vanillin (12 μg·ml-1), and β-hydroxybenzoic acid (30 μg·ml-1) in water culture had stronger inhibitory effects on R. glutinosa root length, root mass, fresh plant mass, and plant height. Treating with test phenolic acids except β-hydroxybenzoic acid increased leaf chlorophyll content significantly, compared with the control. After treated with test phenolic acids, plant SOD and POD activities decreased after an initial increase, and plant malondialdehyde content increased. In the treatment of ferulic acid, root SOD and POD activities were the lowest, and roots were rotted and dead.
结果表明:阿魏酸、香草酸和香草醛含量在地黄生长期表现为持续增加,而对羟基苯甲酸含量先升高后降低;外加阿魏酸(8 μg·ml-1)、香草酸(0.8 μg·ml-1)、香草醛(1.2 μg·ml-1)和对羟基苯甲酸(3.0 μg·ml-1)对水培地黄根长、根质量、全株鲜质量和株高有较强的抑制作用;酚酸处理使地黄叶片叶绿素含量降低,除对羟基苯甲酸外差异性极显著;经过酚酸处理的地黄幼苗SOD和POD活性为先升高后下降,丙二醛含量升高,其中阿魏酸的处理使根中酶活性降至最低,根部腐烂死亡。
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Results: Dynamic observation with histopathology and immunohistochemical staining showed that, after the nerve root nerve root compression, the myelinated nerve fibers decreased and there was ultrastructure changes of the nerve fibers, such as Schwann cell cytoplasm swelling and edema, Wallerian degeneration, and demyelinated degeneration of axons.
结果:通过对压迫神经根及神经根节大体观,组织病理学和免疫组织化学的光学显微镜的动态观察,可见神经根压迫后其有随神经纤维数目减少和超微结构的改变,如神经模细胞胞质肿胀和细胞水肿、华勒变性、神经轴突脱髓鞘变等。
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objectiveto develop an accurate, sensitive and reliable hplc method for puerarin, and to study the absorption characteristics of puerarin in different intestinal sections and the influence of p-glycoprotein on the absorption rate.methodsrat everted gut sac was used.
目的建立准确、灵敏、可靠的葛根素高效液相色谱测定方法,研究葛根素是否存在分肠段吸收的差异并考察肠上皮组织上的p-糖蛋白(p-glycoprotein)对葛根素吸收的影响。
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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。
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The friction produced when the meteors and the meteor particles rub against the atmospheric air incinerates the swarms, and they fall towards the earth in a brilliant display of light.
专家们认为,多尔根有创造&热狗&一词的功劳,可是,直到今天,不知翻了多少遍藏画,却找不到那幅讹写为&热狗&的漫画,只是流传着有关漫画的有趣故事而已。尤为惊人的是,美国人每年消费190亿根热狗,人均90根,价值5亿美元,吃掉的热狗铺在赤道上,可绕地球26圈。
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In the present study, two soybean genotypes (BZ10 and BL2) differing in root architecture and phosphorus efficiency were intercropped with a maize cultivar (Huatian 1) in a field experiment to assess the effects of soybean root architecture on nitrogen and phosphorus nutrition of the intercrops.
在温室的根箱试验中发现,浅根型、磷高效率的大豆品种巴西10号根系在土壤有效磷相对较高的表层分布较多,其表层的根系数量和长度均显著地高于深根型、磷低效率品种本地2号。同时巴西10号的根系与玉米根系接触较多。
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In order to assess the change of triploid populus tomentoza pulp plantation long-term-site productivity, The paper studied on effects of aboveground litterfall, fine root turnover and wet dust precipitation in nutrient cycling of triploid populus tomentoza pulp plantations at different ages,namely 2a、4a、5a、6a.It studied influence of different factors on decomposition of leaf、tree bark and twig of triploid populus tomentoza to select the operations to accelerate the decomposition and nutrient release. Finally, it studied influence of different intercrops on plantation site productivity and the relationship of intercrops and triploid populus tomentoza to select suitable intercrops. The main results as follows:(1)The aboveground litterfall of triploid populus tomentoza increased along with age from 216.03±59.7gm~(-2) at 3a to 482.38±101.3gm~(-2) at 7a, The N returned by litterfall wasl8.38±2.46kg.hm~(-2)a~-121.63±2.25kg.hm~(-2a~-139.51±4.61kg.hm~(-2a~-138.89±4.89kg.hm~(-2a~(-1) at 3a、5a、6a、7a respectively. The P returned by litterfall was 5.80±0.62kg.hm~(-2)a~(-1)、8.16±0.94kg.hm~(-2)a~(-1), 11.31±1.33kg.hm~(-2)a~(-1)、11.76±1.37kg.hm~(-2)a~(-1) at 3a、5a、6a、7a respectively. The nutrient returned by fine root turnover increased along with age, too. The N returned by fine root turnover was 3.85±0.41kghm~(-2)a~(-1)、5.22±0.63kghm~(-2)a~(-1),7.62±0.89kghm~(-2)a~(-1),9.17±1.22kghm~(-2)a~(-1) at 3a、5a、6a、7a respectively. The P returned by fine root turnover was 0.73±0.07kghm~(-2)a~(-1)、1.69±0.09kghm~(-2) a~(-1)、1.92±0.31kghm~(-2)a~(-1)、1.96±0.21kghm~(-2)a~(-1) at 3a、5a、6a、7a respectively. The leaf was the principal pathway to return nutrient to soil among litterfall, fine root turnover and wet dust precipitation. The proportion of returned N by leaf was 74.84%、71.96%、78.58%、75.03% at 3a、5a、6a、7a respectively,The proportion of returned P by leaf was 85.93%、80.31%、83.04%、83.23% at 3a、5a、6a、7a respectively. Therefore, it is important to protect and utilize the leaf in order to maintenance and enhance the long-term-site productivity of triploid populus tomentoza pulp plantation.
本文采取时序研究法,以3a、5a、6a、7a共4个不同年龄的三倍体毛白杨纸浆林为对象,研究了地上凋落物、细根周转、湿沉降在林分N、P营养元素循环中的作用及不同年龄林分N、P营养元素循环的特征,以评价三倍体毛白杨纸浆林长期立地生产力的变化;采取网袋法研究了不同因素对落叶、树皮、树枝分解的影响,以确定加快其分解、促进养分释放的措施:同时研究了不同间作物对林地影响、林木与间作物之间关系,以选择能维持立地生产力的合适的间作物种类等内容,得到以下结论:(1)随着年龄的增加,三倍体毛白杨地上凋落物的数量从3a的216.03±59.7gm~(-2)增加到7a的482.38±101.3gm~(-2),通过凋落物归还的N分别为:3a时为18.38±2.46kg.hm~(-2)a~(-1),5a时为21.63±2.25kg.hm~(-2)a~(-1),6a时为39.51±4.61kg.hm~(-2)a~(-1),7a时为38.89±4.89kg.hm~(-2)a~(-1),归还的P分别为:3a时为5.80±0.62kg.hm~(-2)a~(-1),5a时为8.16±0.94kg.hm~(-2)a~(-1),6a时为11.31±1.33kg.hm~(-2)a~(-1),7a时为11.76±1.37kg.hm~(-2)a~-1随着年龄的增加,通过细根周转归还的养分也在增加,归还的N分别为:3a时3.85±0.41kghm~(-2a~(-1),5a时5.22±0.63kghm~(-2)a~(-1),6a时7.62±0.89kghm~(-2)a~(-1),7a时9.17±1.22kghm~(-2)a~-1归还的P分别为:3a时0.73±0.07kghm~(-2a~(-1),5a时1.69±0.09kghm~(-2)a~(-1),6a时1.92±0.31kghm~(-2)a~(-1),7a时1.96±0.21kghm~(-2)a~-1从地上凋落物、细根周转、湿沉降三种不同途径归还林地养分所占的比例来看,地上凋落物中的落叶是归还养分主要途径,年龄在3a、5a、6a、7a时,通过落叶归还的N所占比例分别为74.84%、71.96%、78.58%和75.03%,归还的P所占比例分别为85.93%、80.31%、83.04%和83.23%。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。