查询词典 tobacco leaf

Partial DNA-A sequence comparison with other geminiviruses showed that G7 were infected with 5 begomoviruses, these viruses were Papaya leaf curl China virus, Ageratum yellow vein china virus, Tomato leaf curl China virus, Euphorbia leaf curl virus and Tobacco leaf curl Yunnan virus.

得到部分G7的DNA一A序列，经NCBI检索和序列比较分析发现了5种菜豆金色叶病毒属病毒的部分DNA序列，分别是中国番木瓜曲叶病毒、中国胜红蓟黄脉病毒、中国番茄曲叶病毒、一品红曲叶病毒、云南烟草曲叶病毒。

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。

In the article,five kinds of compounded enzymes were applied in tobacco leaves alcoholization. The main chemical composition of tobacco leaf was mensurated.

摘 要：本文将蛋白酶、淀粉酶、纤维素酶、果胶酶和活性添加剂一起配制而成5种酶制剂，喷在烟叶上，对烟叶进行人工发酵。

A method for the determination of phenol and catechol in tobacco leaf by high performance liquid chromatography with methanol and 0.05 mol/L of monopotassium phosphate as mobile phase at a flow rate of 0.5 mL/min was described. Phenol and catechol were extracted from tobacco sample by distillation and solid phase extraction with Sep Park C 18 cartridge.

引 言挥发酚是烟草中一类重要的成分，它在烟草燃烧时直接进入烟气，大多有不好的气味，而且很难被掩盖；特别是苯酚和儿茶酚对呼吸系统有腐蚀作用和助癌作用，近年来逐渐引起了烟草化学工作者的注意〔1〕。

The nitrate reductase activity,chlorophyll concentration and nitrogen content of tobacco leaf and total absorption area of tobacco rhizotaxy were significantly or extremely sign ificantly correlated with nitrogen concentration.

结果表明，不同基因型烟草对氮素营养的响应有明显差异，其硝酸盐还原酶活性、叶绿素含量、根系总吸收面积、氮含量均与氮浓度呈显著或极显著相关。

Intercropping could balance chemical compositions in tobacco and improve quality of tobacco leaf, and increase internal quality to a certain extent.

间作能协调平衡原烟化学成分，在一定程度上能改善和提高烟叶的内在品质。

Glutinosa and Solarium lycopersicum,while Tomato yellow leaf curl China virus and its DNAβinduces distinctive vein thickening and enations as well as leaf curling.To investigate the genetic determinants of the phenotypic differences, we inoculated Nicotiana spp.with infectious clones of TbCSV/DNAβand TYLCCNV/DNAβpseudorecombinants and showed that symptoms co-segregated with the DNAβcomponent.

烟草曲茎病毒(Tobacco curly shoot virus，TbCSV)/DNAβ在烟草和番茄上能引起曲叶症状，而中国番茄黄化曲叶病毒(Tomato yellow leaf curl China virus，TYLCCNV)/DNAβ除引起曲叶外还引起寄主的脉突和耳突症状。

The high content of potassium and proper content of calcium and magnesium in tobacco leaf have good effect on the quality of Flue-cure tobacco.

烟叶高含量的钾、适宜的钙镁含量对烟叶品质有良好的作用。

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。

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