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七叶
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  7 leaf
     Activities of ribulose bisphosphate carboxylase-oxygenase (EC. 4. 1. 1. 39)and malate dehydrogenase (EC. 1. 1. 1. 37) were assayed and contents of proteinand chlorophyll were determined in leaves of broad bean (Vicia faba), either atdifferent positions on plants of the same age or at the same position on plants ofdifferent ages (4-, 5-, 6-, and 7 leaf stages).
     测定了蚕豆(Vicia faba)植株的第三、四、五、六、七叶位各叶片中双磷酸核酮糖羧化酶-加氧酶(EC.4.1.1.39)和苹果酸脱氢酶(EC.1.1.1.37)的活性以及蛋白质与叶绿素含量。
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     The results showed that the probability of cold damage occurrance for seedling stage delayed 5 days, 7 leaf stage delayed 5 days, earing stage delayed 5 days and maturity stage delayed 5 days were 75%, 89%, 92% and 100% respectively.
     结果表明 :在低温冷害年 ,苗期、七叶期、抽雄期和成熟期拖后大于等于 5天发生低温冷害的可能性分别为 75 % ,89% ,92 %和 1 0 0 %。
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     Selection have unique of ecological and small climate and have se resources of Enshi area and use plant technology of lose As、 Pb produced out no out strip hygiene standard of As. Pb. of“ 7 leaf sweet of Enshi” and“ 5 leaf candied of Enshi” of Jiaogulan leaf and“ qiaomai of Enshi” seedling,and“ wheat I number of Enshi” seedling.
     选择有硒资源和独有生态及小气候的恩施地区,使用脱 As、 Pb栽培技术生产出来的“恩七叶甜”、“恩五叶蜜”绞股蓝叶、“恩施荞麦”苗、“恩麦 1号”苗,其 As、 Pb不超卫生指标并用其研制出了营养保健片。
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     The two peaks had the homologous relations with the fast vegetative growth (4~7 leaf stage) period and stem elongation period of rape.
     两峰与油菜营养生长旺盛期(四至七叶期)、蕾薹期有对应关系。
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  “七叶”译为未确定词的双语例句
     and Paris polyphylla Smith var. chinensis(Franch.)
     )和七叶一枝花(Paris polyphylla Smith var.chinensis(Franch.)
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     The emended effects of the combinations of P.polyphylla and pyrocatechol on P.citri were 59.74 %,71.12%,91.19 %,95.50 % and 95.43 % respectively after 1,3,10,15 and 20 d in field tests.
     田间试验结果表明,七叶一枝花提取物与邻苯二酚混用,药后1、3、10、15和20天,校正防效分别达59.74%、71.12%、91.19%、95.50%和95.43%。
短句来源
     Results showed that the LC50 of P.polyphylla alone was 1588.537 μg/ml. Both Pyrocatechol and HP-Ⅰhad noticeable synergisms and the LC50 was 284.506 μg/ml and 768.588 μg/ml,and the multiple of synergism was 5.6 and 2.1 respectively.
     结果表明,七叶一枝花提取物单用对柑桔全爪螨的致死中浓度(LC50)为1588.537μg/ml,邻苯二酚和氮酮对七叶一枝花提取物均有显著增效作用,致死浓度分别达284.506和768.588μg/ml,分别增效5.6和2.1倍。
短句来源
     The infarct volumes of protective groups were (87.921.3)mm3, (68.2 15.2)mm3 and (63.8 18.3)mm3 respectively,also significantly smaller than that of control group(P<0.05).
     脑梗死容积p-七叶皂贰钠组分别为(57.9士21.3)mm3,(65.2士15.2)mm3和(63.5士15.3)mm3,均明显小于对照组(195.8士 32.3)mm3(尸<0.05)。
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     Conclusions The main four constituents of the oil wereβ-Elemene(24.20%),β-Eudesmene(24.00%),α-Selinene(12.46%).
     结论七叶莲枝叶主要成分为萜烯类化合物,包括β-榄香烯(24.20%)、β-桉叶烯(24.00%)、α-蛇床烯(12.46%)等。
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  相似匹配句对
     Studies on the Flavonoids from the Leaves of Panax notoginseng (Burk.) F. H. Chen
     三黄酮类成分的研究
短句来源
     A Further Investigation on the Chemical Constituents from the Leaves of Panax notoginseng
     三化学成分的进一步研究
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     Seven Swords
     [剑]
短句来源
     THE CLASSIFICATION OF LEAF BEETLES
     甲的分类
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     七 Statistical analysis The data were analyzed by t-test.
     、统计学分析
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  7 leaf
As a proof of concept, a pooled BAC library of approximately 177,000 recombinant clones has been constructed from the barley cultivar Cebada Capa that carries the Rph7 leaf rust resistance gene.
      
Poorest larval growth was observed in the low-nitrogen treatments (1.2% and 1.7% leaf N) and was the result of both low consumption rates and high metabolic costs (low efficiency of conversion of digested food, ECD).
      


The main shoot of the winter wheat,Nongda 183,develops 13—14 leaves.As a rule,each leaf with its various types of cells,as well as the area of the leaf blade and sheath show a series of changes from simple to complex in morphology and dimension when the rank of the leaf rises from the lowest to the flag leaf. Leaves from the lower ranks,including all the autumn leaves,are consisting of 80% of 1—3 linked cells in the mesophyll.Leaves from the higher ranks(spring leaves)have more multi-linked cells(from 3-links...

The main shoot of the winter wheat,Nongda 183,develops 13—14 leaves.As a rule,each leaf with its various types of cells,as well as the area of the leaf blade and sheath show a series of changes from simple to complex in morphology and dimension when the rank of the leaf rises from the lowest to the flag leaf. Leaves from the lower ranks,including all the autumn leaves,are consisting of 80% of 1—3 linked cells in the mesophyll.Leaves from the higher ranks(spring leaves)have more multi-linked cells(from 3-links up).The flag leaf is consisted 77% of mesophyll cells having more than 4-links. The higher ranked spring leaves have more types of cells,besides the mesophylls, than those from the lower ranks. The sheath cells of high ranked leaves and the green glume and lemma cells of the spike have also the peak,dale,isthmus and link formation. The spring sown vernalized winter wheat spiked with its 7th leaf,the cell com- ponents of which is equivalent to the flag leaf(the 13th)of the autumn sown plant. In the spring sown unvernalized winter wheat,the cell components of its 7th leaf are far behind in delvelopment when compared with the vernalized and the regular autumn sown plant,although all of them were grown and mature in the same en- vironment. The meaning of these changes in the structure and morphology of the cells,the cells in the glume and lemma,and the ontogeny of the main shoot with their environ- ment are discussed.

冬小麦农大183植株的主茎在其个体发育过程中共生长13—14片叶片。随着叶位的上升,各叶片的叶面积,叶鞘面积及各叶片所有各类型细胞的形态和结构互有差异,并反映出逐步复杂化的规律,尤其是叶肉细胞;在返青以前的低叶位叶片中,它们的叶肉细胞,三环以下的占80%左右,在高叶位的叶片中,随着叶位上升,多环细胞的类型随着增多。在旗叶中,四环以上的细胞占77%,并常看到多环而又有分枝的细胞。高叶位的叶鞘、小穗的护颖和稃片等绿色组织中的绿色细胞都有着和叶肉细胞相同的峰谷腰环(图1)形态。高叶位的表皮细胞形态也比低叶位的表皮细胞复杂。经过低温春化处理的冬小麦春播植株的第七叶片(旗叶)叶肉细胞类型的组合与秋播植株旗叶(第十三叶)一样。未经春化处理的春播植株第七叶虽然生长时间及生态环境和上述二种植株的旗叶相同,但其叶片细胞的形态和组合却和年前秋播植株的越冬前低叶位叶片相同。这说明了叶片细胞的组成主要决定于内在的生长发育规律。

The head smut fungus[Sphacelotheca reiliana(Kǔhn)Clint]from corn infected budlets and young roots of corn from seeds,but the infection of budlets was higher than that of young roots.No significant difference of infection was shown in budlet sheath and the root stem of budlct.Infections occurred from germinating of seeds to the 7-leaf stage,but no infections took place at the 9-leaf stage.During the period of infection,more seedlings were infected in the middle Stage than in the first and last;the infection percentage...

The head smut fungus[Sphacelotheca reiliana(Kǔhn)Clint]from corn infected budlets and young roots of corn from seeds,but the infection of budlets was higher than that of young roots.No significant difference of infection was shown in budlet sheath and the root stem of budlct.Infections occurred from germinating of seeds to the 7-leaf stage,but no infections took place at the 9-leaf stage.During the period of infection,more seedlings were infected in the middle Stage than in the first and last;the infection percentage of plants inoculated from just before emergence to the 3-leaf stage was significantly higher,the percentage of infection at the 1-leaf stage was the highest,and that at the 5-leaf stage significantly decreased. Infection by the fungus was effected within the range of 13-35℃ of soil tempera- ture,but the optimum range was 16-25℃,with 22℃ as the temperature in which most infection occurred. Relationships between infections and sowing dates were consistent in the main with those between infections and temperature.No great difference of infection percentage was observed in corn sown in spring and corn sown in summer was rarely infected. Percentage of infection was high when moisture capacity of soil was 15.5%, but it decreased when humidity was too high or too low.The fungus that overwint- ered in the moist conditions brouqht about higher,infections to seedlings. Seedlings covered with a thicker layer of infected soil in the period of sowing showed a higher percentage of infection. The fungus could only live for two seasons under the field conditions.

玉米丝黑穗病菌对玉米幼根、幼芽都能侵染,但以幼芽侵染较多。在幼芽的芽鞘和根茎部位,侵染程度没有明显差异。从种子萌芽到七叶期都能侵染,到九叶期不再侵染。在侵染期间,前期和后期侵染少,中期侵染多;以临出苗到三叶期接种的发病率显著较高,单叶期接种的发病率最高,五叶期显著下降。在土温13—35℃范围内,病菌皆可侵染,而16—25℃是比较适宜的侵染范围,22℃发病率最高。侵染与播期关系的倾向,同侵染与温度关系的倾向基本上是一致的。春播的各期发病率差异不大,夏播的极少发病。因此,本病在夏玉米区不会流行成灾。土壤含水率在15.5%时发病率高,过干过湿都会减少侵染。在阴湿条件下越冬的病菌侵染率较高。播种时,覆盖菌土层厚的发病率高。病菌在田间条件下,只能存活两个生长季节。

In healthy tobacco plants (Nicotiana tabacum), activity of the peroxidasewhich is present in the apoplast of mesophyll cells but absent in the cell walls wasfound to change with the growth and development of the leaf As illustrated inFig. 1, peroxidase activity is lower in the young leaf and becomes higher in themore mature leaf Activity change with age seems to follow an S-shaped cur-ve. When isolated by acrylamide gel electrophoresis, the peroxidase isozymesfrom leaves differently situated on the plant show...

In healthy tobacco plants (Nicotiana tabacum), activity of the peroxidasewhich is present in the apoplast of mesophyll cells but absent in the cell walls wasfound to change with the growth and development of the leaf As illustrated inFig. 1, peroxidase activity is lower in the young leaf and becomes higher in themore mature leaf Activity change with age seems to follow an S-shaped cur-ve. When isolated by acrylamide gel electrophoresis, the peroxidase isozymesfrom leaves differently situated on the plant show quite different characteristics.The isozymes from the top leaf fall into only one group (A Ⅱ), those from the se-cond leaf fall into two groups (AⅡ and AⅠ), and those from the seventh leaf fallagain into only one group (AⅠ) with the AⅡ group disappeared. This shows thatdifferent peroxidase isozymes function in different periods of cell development inleaf growth. Peroxidase isozymes bound to the cell wall are in the AⅠgrqup which mig-rate to anode with a higher rate. Two bands of the AⅠ group isozymes are ionically wall-bound, and the remaining one is co-valently wall-bound.

烟草叶肉细胞质外体(apoplast)中过氧化物酶(即与壁游离的过氧化物酶)的活性,从幼嫩的叶片到成熟的叶片,有一个从低到高,呈S形变化的曲线。聚丙烯酸胺凝胶电泳,同工酶谱带变化如下:第一叶只有一组(AⅡ组),第二叶开始增加至两组(AⅡ组、AⅠ组),到第七叶又只有一组(AⅠ组),AⅡ组消失了。这反映细胞生长的不同阶段有不同的同工酶在起作用。 与烟草叶肉细胞壁结合的过氧化物酶,都定位于AⅠ组,其中有两种同工酶是以离子键结合于壁的,有一种以共价键结合于壁。

 
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