the upper leaves

Effect of the Disposal Ratios of Upper Leaves on Yield Characters in Wheat

小麦上三叶配置比例对产量性状的影响

Meanwhile, the optimal appearance of upper leaves for picking was yellow in colour, whith maim veins completely white, 2/ 3 to all of the lateral veins turning white, most of tomenta falling off, and the reins and tips of leaves having withered.

上二棚叶采收最适特征为叶片全黄、主脉全白发亮、支脉2/3至全白、茸毛大部分脱落以及叶尖叶缘呈枯尖枯边。

The upper 2 expanding leaves of tube seedlings, cut into 4 mm X 4 mm and inoculated with abaxial layer downside may have the greatest regeneration efficiency. This variation was shown in the stage when the leaves were expanding.

组培苗顶端前2节位展开叶片，切成4mm×4mm左右，远轴面接触培养基时的再生效果最好。这种变化主要表现在叶片全展前后，到叶片发育后期则接近野生型。

The difference of the content of protein in the upper and lower leaves of the host plant is not significant.

矮生菜豆的上、下部分的蛋白质含量没有明显的差异性。

The former two GA_3 treatments increased the lengths of upper 3 leaves, but not the width.

前两期处理对上部三片叶的长度有促进作用，对叶宽则影响不大。

Smearing exogenous hormones significantly decreased the nitrogen content in the upper leaves, so that the protein content of tobacco leaf tends to appropriate range. 2.

打顶后涂抹外源激素显著降低了中上部叶的含氮量，使烟叶的蛋白质含量趋于适宜范围。

The epidermal cells and anatomical structure of mature leaves were analysed for 15 major oil Camellia spp. It was found out that both the upper and the lower foliar epidermal cells were irregular and/ or polygonal in shape ( surface view).

本文对油茶属15个主要油用物种的叶表皮和叶片结构进行了观察，发现叶片上下表皮细胞的形状（表面观）为不规则形和多边形。

Five Measures Influence the Nicotine and Other Main Chemical Compositions to the Upper and Middle Leaves of Flue-cured Tobacco

五项措施对烤烟上、中部叶烟碱及其它主要化学成分的影响

Cured tobacco leaf reducing sugar content in different parts of the performance of large and small for the upper leaves middle leaf.

烤后不同部位烟叶还原糖含量大小都表现为上部叶中部叶。

In addition K-Cl ratio was less than 4 in the upper leaves in common vetch treatment, and in the rest it was more than 4.

除苕子处理上部叶钾氯比小于4，其余均大于4。

Treating the first true leaf with oligosaccharide could reduce the disease severity on upper leaves, which showed remarkable resistance.

诱抗剂处理第一片真叶后可减轻上部叶片发病，上部叶片呈现较明显的抗病性反应特征。

The nicotine content of the upper leaves of remained 22,24 and 26 leaf treatments treated by the nicotine-reducing stick is 0.75%, 0.42% and 0.66% lower than CK respectively.

上部烟碱含量留叶数22片、24片和26片插签处理分别比对照下降0.75、0.42和0.66个百分点；

Study of using chemical improve quality of the upper leaves of flue_cured tobacco

利用化学试剂改善上部烟叶品质

Ingredients change with the trend of the leaf position of the lower leaves upper leaves middle leaves.

各成分含量变化随叶位的变化趋势为下部叶上部叶中部叶。

Compared with chemical fertilizer, organic manure treatments improved total nitrogen, nicotine and protein content of the upper leaves.

与无机肥相比，有机肥一般能提高上部叶的总氮、烟碱及蛋白质含量。

Presently, to improve the quality and availability of the upper leaves of tobacco is the question that we need to solve.

目前，改善上部烟叶品质和提高其可用性，是烤烟生产亟待解决的重要问题。

The upper leaves, then the performance of the facilities has been high in the two oil dry processing, the chlorophyll content than the control.

而上部叶，则一直表现为施油枯量高的二个处理，叶绿素含量高于对照。

Study on the photosynthetic capacity in upper leaves of super rice

超级稻上部叶片光合能力的研究

The difference of the content of chlorophyl in the upper and lower leaves of the host plant is significant, and the content of chlorophyl in the upper leaves is less than the lower.

矮生菜豆的上、下部分叶片的叶绿素含量有显著的差异性，下部叶片的叶绿素含量显著多于上部叶片的叶绿素的含量。

At anthesis and milky stages under field high-nitrogen condition, the results of labeling 14C showed that the three upper leaves of erect-panicle type variety had showed the higher photosynthetic rate, which accounted for 87.4% of the total photosynthate.

于水稻开花期及乳熟期田间高氮区群体饲喂14CO2，测定结果表明：直立穗型品种冠层中顶部三片叶的光合速率最高，其光合量占单株总光合量的87.4%；

The ratios of upper tobacco leaves raised according to the altitude. The best level was 300-500 m altitudes for superior leaf ratio, output value and average price. 6.

上部烟比例随着海拔的升高而升高，上等烟比例、产值、均价都以300-500m水平最优。

Nicotine content in the upper leaves of the plants increased with the postponing of harvest, but it decreased from 5.07% in the non-girdled control to 4.23%, 4.33% and 4.69%, respectively, in the three girdling treatments.

结果表明：随着采收期推迟，上部烟叶烟碱含量逐渐增加，未环切处理上部烟叶烟碱含量为5.07%，环切后各处理烟碱含量分别降至4.23%，4.33%，4.69%；

Content of total P, anthraquinone and soluble protein in the upper leaves were higher compared with that of the other leaves, similar situation for total N in down-site leaves was observed as well.

不同叶位叶片各指标含量存在较大差异，上位叶中全磷、总蒽醌及可溶性蛋白质的含量较高，全氮在下位叶中积累较多。

The results showed that the upper and under leaves of S.photeinocarpum had higher photosynthetic capacities in habitats of lower soil moisture and poor organic matter.

结果表明：在土壤水分和有机质含量较低的生境中，少花龙葵上部叶与下部叶均具有较高的光合能力；

When compared with chemical fertilizer, sugar-nicotine ratio of upper leaves significantly decreased ( i.e.10) in rapeseed cake, pig dung and straw treatments, so improved the quality of upper leaves.

与无机肥相比，施用油枯、猪粪和秸秆显著降低了上部烟叶的糖碱比，使之接近10左右，改善了上部叶品质。

The upper leaves of Luoyang and Sanmenxia tobacco had bigger degree of relation with that of imported tobacco, with better comprehensive properties.

上部叶，以洛阳和三门峡的烟叶与进口烟叶的关联度较大，综合性状较好；

Effects of "Yanboshi" active agent on growth and smoking quality of the upper leaves of flue-cured tabacco

烟博士活性制剂对烤烟上部烟叶生长及其品质的影响

The upper leaves are smaller and with lower photosynthetic rate.

上部叶片较小且光合速率较低。

The feasibility of concentration harvesting and extend the upper leaves harvesting time were better to early-maturing flue-cured tobacco variety.

集中采收和适当延长采收在早熟烤烟品种上部烟叶的可行性较好。

Observe on the Dissected Structure of Upper Leaves of Flue-cured Tobacco during the Curing process

烘烤过程中烤烟上部叶解剖结构变化的观察