查询词典 leaf-shaped

We analyzed and discussed the characteristics of cycle of carbon and water,and after having obtained important physiological parameters based on field experiment,a process-based, multilayer two-leaf model which calculates energy and material cycle separately for sunlit and shaded leaves was developed,then characteristic of CO_2 fluxes above the canopy was simulated.The main results are as follows:1.Characteristics of carbon and water cycle in the relationship of leaf photosynthesis -stomatal conductance-transpiration.

本研究以冬小麦为研究对象，利用LI-6400R光合—蒸腾测量系统、LI-6400-09土壤呼吸室和禹城生态试验站涡度相关系统等高精度仪器设备，对2007年和2008年小麦拔节至乳熟期间涉及碳、水循环过程的叶片光合—蒸腾作用、土壤呼吸作用及相关农田气象要素和植被特征进行了野外试验测定和分析，在试验观测基础上提取了重要生理参数，建立了基于过程的农田与大气间物质输送和能量交换的多层—双叶模型，并对2008年试验期间冠层上方碳通量特征进行了模拟，试验分析和模拟的主要结论如下：1。

Under the condition [0mmol/L,raise in vermiculite] of phosphorus stress, variation in root morphology and biomass among different soybean genotypes at seedling stage were studied, the result shows: At two-leaf age, higher P-efficiency genotypes(K1 and K2) don't develop their potential advantages; at four-leaf age, some characteristics of K1 and K2, such as lateral root number, lateral root length, root absorbent area and dry weight of shoot are all less reduced than those of intermediate P-efficiency genotypes(Z1 and Z2) and of lower P-efficiency genotypes(M1 and M2), and dry weight of root and R/S of higher P-efficiency genotypes are more increased than those of the others.

在磷胁迫[0mmol/L，砂培]条件下，对不同基因型大豆苗期在根系形态、生物量等方面的差异进行了研究，结果表明：磷高效基因型在两叶期并未发挥出其基因型潜力的优势；四叶期，磷高效基因型的侧根数、侧根长、根系吸收面积、茎叶干重等性状的受抑制程度均显著低于磷中、低效基因型，而地下干重、根冠比却受到了较中、低效基因型更强的诱导作用。

The seedling height and the leaf area increased after treatments.3 Rape seeds were cultured in the solution containing diosgenin of different concentrations. The different concentrations of diosgenin affected metabolism of rape seedlings, particularly at a concentration of 0.5mg/L. The treatments of 0.5mg/L diosgenin increased prominently the contents of soluble sugar, soluble protein and the activity of peroxidase, catalase, Ca2+- ATPase in rape cotyledons.4 Rape seedlings were sprayed with 0.5mg/L diosgenin solution at the two-leaf and one-bud stage.

油菜种子经不同浓度的薯蓣皂素浸种处理后，0.5 mg／L的薯蓣皂素明显影响油菜幼苗生理代谢，子叶中可溶性蛋白质和可溶性总糖含量提高，过氧化物酶和过氧化氢酶的活性，Ca~(2+)-ATP酶的活性上升。

The result from this study indicates that, with the ways of sprinkling the root and sprinkling the root combination of spraying the leaf is better than with the way spaying leaf for three different soil amendment controlling the tomato early blight, the same as the quantities of microbes around the tomato root. The wood vinegar and the juice of leek have certainly effects of controlling tomato early blight.

实验结果表明：三种不同的土壤改良剂采用叶面处理+灌根处理和单纯灌根处理对于番茄早疫病的防治效果明显好于单纯叶面处理，相应地，土壤微生物数量呈现同样的变化，二者呈现同步增长的趋势。

In tobacco production, leaf fertilizer should be chosen according to the characteristics of leaf fertilizer and the growth conditions of tobacco plants.

结论］在烟草生产中，应根据叶面肥特点和烟株生长情况选择叶面肥。

Although effects of nitrogen fertilizer on nitrogen accumulation and nitrate reductase in tobacco leaf had been extensively studied, impacts of nitrogen fertilizer on flue-cured tobacco leaf nitrogen metabolism in dry land and paddy field were not well documented.

试验采用裂区设计，以硝态氮和铵态氮两种氮素形态为主处理、5个供氮水平为副处理，在大田条件下研究了水田与旱地烤烟在团棵、旺长、脚叶采烤、腰叶采烤和顶叶采烤等5个生育期烟叶的总氮浓度、硝酸还原酶和谷酰胺合成酶活性的氮肥效应。

In the tobacco production, the measure of only using fertilizers in soil can notimprove the quality of tobacco because soil nutrients releasing is not coincident withthe nutrients absorb rules of tobacco, and the leaf fertilizer with low cost and higheffect can harmonize the nutrients of tobacco leaf and improve the economic benefitof tobacco under assorting with soil fertilizer.

烤烟生产中，由于土壤养分释放状况与烤烟吸肥规律并不一致，单一的土壤施肥并不能达到改善烟叶品质的目的，而成本低、肥效快的叶面肥可以针对烤烟不同生长发育期各异的养分需求特点，配合土壤施肥，协调烟叶自身营养状况，改善烟叶内在品质，进而提高烤烟经济效益。

The difference in yield, its components, basic characteristics such as mean size and bare tip length of cobs, plant height, base internode diameter, secondary root number per plant, LAI and DMW at the same measuring date, between the three treatments were insignificant respectively; the optimized fertilization made the three leaves around corn cob rather smaller, the cob leaf slightly thinner, a decrease of the cob leaf chlorophyll content at greater rate at the later stage, and dry matter accumulation amount slightly reduced from flowering to grain filling.

在优化施肥、秸秆还田优化施肥及传统施肥条件下，夏玉米穗长、穗粗、秃顶长、株高、基部伸长节间粗度、单株各层次生根条数、同一时期的叶面积指数和干物质积累量无显著性差异。在优化施肥条件下，夏玉米棒三叶总叶面积略微减少，穗位叶叶片略微变薄，生育后期穗位叶叶绿素含量下降稍快，吐丝-收获的干物质积累量略有下降。

The four-leaf clover is an uncommon variation of the common three-leaf clover.

传说中的四叶草是夏娃从天国伊甸园带到大地上的。

It has been estimated that there are approximately 10,000 three-leaf clovers for every four-leaf clover.

据说这种草一般只有三片小叶子，叶形呈心形状，叶心比较深的部分就是心形。

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。

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。