烟叶

Second, this research analyzed Chinese tobacco leaf and cigarette production, consumption and international trade, and focused to analyze the cost and revenue of tobacco leaf production, concentration ratio of cigarette market, marketing structure, marketing performance, accretion process in every value chain link ,and the profits allocation of each market body.

然后描述和分析了中国的烟叶和卷烟生产、消费、国际贸易情况，对中国烟叶生产成本收益、卷烟市场集中度、市场结构、市场绩效、价值链各个环节增值过程和各市场主体的利益分配进行重点分析，最后从烟草产业各个环节相互协调的角度提出了整体的发展战略和政策建议。

The results showed that plant height increasing speed was significantly slow at the former and middle stage when K level was above 180 kg/hm2.On the contrary,the height of case-hardened plant improved markedly.When the K level was above 135 kg/hm2,the stem girth and maximal leaf area differed significantly as compared with CK,so did LAI.Yield and product value per unit area took the first place when 180 kg/hm2 potassium was used.Average price and proportion of middle and first grade tobacco leaf of 225 kg/hm2 potassium treatment were the highest as compared with other treatments and CK.Four economic characters of the two treatments differed at obvious significant level as companied with CK.The total sugar and K2O were increased,nicotine, total N,protein and Cl- were decreased with increased K levels.The potassium lacked symptom was alleviated with increased K levels,no symptoms was observed when 180 kg/hm2 potassium was used,the degree of weather infected fleck was decreased when the K levels was increased.

结果表明，在烟株生长前中期，当施钾量达到180 kg/hm2以上时，株高增长显著变慢，而定型株高则显著增高；茎围和最大叶的面积在施用135 kg/hm2以上的处理与CK之间的差异性达到极显著水平，叶面积指数也存在显著差异；单位面积产量和产值以施用180 kg/hm2的处理居首位，中上等烟比例和均价以施用225kg/hm2的处理最高，这两种处理的以上4个经济性状与CK之间存在极显著性差异；烟叶中的总糖和K2O含量随施钾量的增加而上升，烟碱、总氮、蛋白质和C-含量则下降；缺钾症状随施钾量增加而减轻，至施用180kg/hm2时已无缺钾症状；烟叶气候斑的发生程度也随施钾水平的提高而减轻。

In order to find out the causation of tobacco leaf chlorosis and its effect on the raw tobacco quality in Nandan county.

［目的］为探明南丹烟叶白化的原因及对烤后烟叶质量的影响。

And recovery 30 days after topping could make sure there are enough carotenoids and soluble sugar in tobacco leaf cells. Besides the contents organic acid, protein, nicotine and potassium element are controlled in a certain scope, then tobacco leaves after curing kinds of compound proportion coordination bear more fragrance precursor.

打顶后30d采收烟叶，叶片细胞内既含有较多类胡萝卜素和可溶性糖，又能将有机酸、蛋白质、烟碱和钾含量控制在一定范围内，使烟叶调制后各种化合物的比例协调。

It also discussed the relationship between the main chemical compositions of tobacco leaf surface exudates and the aroma of tobacco leaf.

展望了烟叶腺毛及其分泌物的研究方向和途径，提出烟叶腺毛及其分泌物研究的意义和目的。

The result showed that the effect on soil fertility quality not notability; the effect on the flue-tobacco yield have notable different under different green manure, and wheat 、cabbage and cole higher than CK, horsebean is lowest. Planting green manure can ameliorated quality, and cole treatment was more harmony in chemic component, and than was cabbage.

本试验结果表明，在一年种植的基础上，种植绿肥对植烟土壤肥力影响有限；烟叶产量方面种植小麦、白菜、油菜好于对照，蚕豆最差；质量方面种植绿肥可以在一定程度上改善化学成分协调性，有提高烟叶品质趋势，其中以油菜处理的化学成分协调性更好，白菜次之，而蚕豆和小麦一般。

The invertase activity of 75 days after transplanting is lower than that of 60 days after transplanting.

当前，在北方广大褐土区提高烟叶钾含量是烟叶生产中的重要问题。

The influence of different concentration of γ-PGA on tobacco seed vitality and tobacco seedling growth was studied.

烟草种子是烟叶生产的重要基础，只有优良品种和高活力的种子，才能为获得优质烟叶提供保障[1]。

The average contents of available sulfur in soil and sulfur in tobacco leaf from tobacco-rice continuous cropping pattern were 39.06 mg/kg and 0.968%,and 30.42 mg/kg and 0.704%for single cropping in dry land respectively.

烟叶硫含量仅有30%在0.20～0.70%正常范围内，70%烟叶硫含量超标，尤其是浏阳和宁乡植烟区的烟叶硫含量超过了1.00%。

The effects of leaf spraying with aqueous solution of Gibberellic Acid (GA_3) in different concentration on the length, width and thickness of upper leaf of new K326, a flue-cured tobacco breed, were studied.

研究了植物生长调节剂赤霉酸(GA3)水溶液叶面喷施对烤烟品种新K326上部烟叶长度、宽度及厚度的影响，并探讨了外源GA3喷施浓度与上部烟叶烟碱含量及糖碱比值间的关系、GA3喷施浓度与烟叶等级结构和产值间的关系。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了