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root types
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  根系类型
     Research on root types and anatomical structure of Cycas acuminatissima
     尖尾苏铁根系类型与解剖结构研究
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     Root growth of wetland plants with different root types
     两种不同根系类型湿地植物的根系生长
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     There was no correla-tion between mycorrhizal structure types and colonization rates. neither root types of host plant.
     而Paris类型仅有19.23%,多见于禾本科、唇形科、桔梗科和百合科,丛枝菌根结构类型与根系类型及菌根侵染率无关,而与植物所属的科属关系比较密切。
  “root types”译为未确定词的双语例句
     As for the root growth form,the taproot type reaches the majority to 66%,and the rhizome and the brush root type reaches the majority to 66%,and the rhizome and the brush root types make up 17% and 16% respectively.
     根生长型结构以直根型的种类最多,占66%; 根茎型和刷状根型分别为17%和16%。
短句来源
     Effects of Osmotic Stress on Water Use Efficiency and Root System Hydraulic Conductivity of Winter Wheat of Different Root Types
     水分胁迫对不同根型小麦幼苗水分利用率和导水率的影响
短句来源
     Infection of VA mycorrhizal fungi was also dif-ferent with the root types,the thin root in diameter(0.1~0.5mm) had the highest infectionrate,The mycorrhizas were not different morphologically in various layers of soil, but the in-fection rate and the development status were different.
     不同粗度的根系VA菌根真菌的侵染情况存在着差异,其中直径0.1~0.5mm的细根,VA菌根真菌的侵染率最高。 不同土层内的菌根形态差异不显著,但侵染率及发育状况不同。
短句来源
     The different root types and nodepositions were in different trend in length, dry weight and activity: the layer the higher, the length, dry weight and activity the longer, moreweight and stronger, and their changesweremore intensity, in the different root types, the aerial roots plays a leading role in maize growth later period.
     不同类型根系及不同层次节根长度、干重和活力动态变化趋势不同 ,层位愈高 ,根系长度、干重及活力愈大 ,且增降幅度愈强 ,在整个单株根系中 ,气生根占主导地位。
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     Differences were also observed for the tested indices in varieties of different root types and in different growth stages.
     不同生长期、不同根型苎麻在干旱胁迫下这些指标亦存在差异。
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  相似匹配句对
     Root
     根
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     Results: 6 types of shape of root canals were showed.
     结果 :显示 6种根管分型。
短句来源
     THE MAIN TYPES OF ROOT SYMBIONT IN ECOSYSTEM AND RESEARCH ADVANCES
     生态系统中根系共生的主要类型及其研究进展
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     Types of overlapping.
     首先,从总体上对强制执行竞合的类型进行了划分;
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     On the Types of Truth
     几种真理观及其评析
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  root types
The effects of coumarin on the length, diameter, and branching density of different root types in maize seedlings (Zea mays L.
      
Coumarin Differentially Affects the Morphology of Different Root Types of Maize Seedlings
      
At each node the root structure was defined as consisting of three root types: unbranched, long branched and fine branched.
      
A comprehensive analysis of root architecture can be achieved by classifying individual roots in several root types through architectural analysis.
      
When adventitious roots were assigned greater specific respiration rates, increased adventitious rooting reduced phosphorus acquisition and efficiency by diverting carbohydrate from other root types.
      
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The distributional tcgularity of underground biomass with time and space in the three type of salinizedswards was measured in Hcxi Corridor.The results indicated that 1)Observed from the soil profile, the distribution of the underground biomase,took a shape of‘T’.Thebiomass drastically abounded at 30~40cm due to the growing reed rhizomes at this layer in Triglochimmaritimum sward. In Juncus bofonius sward the root system was abundant at the top layer and the root ratio of0~10cm to 10~20cm is 5.0.The underground...

The distributional tcgularity of underground biomass with time and space in the three type of salinizedswards was measured in Hcxi Corridor.The results indicated that 1)Observed from the soil profile, the distribution of the underground biomase,took a shape of‘T’.Thebiomass drastically abounded at 30~40cm due to the growing reed rhizomes at this layer in Triglochimmaritimum sward. In Juncus bofonius sward the root system was abundant at the top layer and the root ratio of0~10cm to 10~20cm is 5.0.The underground biomass in Phragmite communis+Leymux dasystachys swardswas relatively poor because of the fewer species in the sward than those in the other swards.2) The distributional features of the underground biomass observed could be fitted with non linearfunctions, the results of Darameter estimation were as follows:T.martimum Sward:Y=234.716+23544.542/x (r=0.975 F=245.95)x∈(0~50cm)J.bofonius Sward:Y=179.386×e25.04/x r=0. 978 F=279. 209)X∈(0~50cm)P.communis+Leymus dasystechys Sward:Y=36. 001+2379. 572/x(r=0.947 F=138.797)x∈(0~60cm 3)The living roots of above swardS reached to the maxim um at end of growing season and relativeamount is 90.92%,94.7% and 90.17% for T.martimum sward,J.bofonius sward,P.communis +L.dasystechys sward respectively.The roots at top layers were aboud nat and active. The variation of therelative amount for living roots at top layers was 32.25%~45.18%,29.68%~63.43%,25.07%~42.90% respectively for above swards.In contrast the variation for dead rcots was 32. 32%~51.2%,37.18%~74.45%and 25.0%~41.67% respectively.In conclusion the root types and distributionalfeatures of the species in the comm unity were the factors that infl uence the distribution of undergroundbiomass of sward.

定位调查河西走廊三种盐化草地地下生物量随时空分布的规律表明:1)在垂直剖面中,海韭菜、小灯心草和芦苇+赖草草地根系均呈“T’型。海韭菜草地的根量在30~40cm处有一增大,与芦苇在该层产生水平根茎有关;小灯心草草地地表根系极丰富,0~10cm与10~20cm层的根量比达5.0;而芦苇+赖草草地的构成种简单,地下生物量较前两个草地为少;2)三种草地地下生物量随土壤深度的关系均可用非线性函数描述,其最佳模型为:海韭菜草地:Y=234.716+23544.542/x(r=0.975F=245.95)x∈(0~50cm);小灯心草草地:Y=179.386×e25.04/x(r=0.978F=279.209)x∈(0~50cm);芦苇+赖草草地:Y=36.001+2379.572/x(r=0.947F=138.797)x∈(0~60cm〕;3)以上三种草地的活根量均在生长季未达最大,分别占剖面中相对含量的90.92%,94.7%和90.17/;表层根系量大,非常活跃,海韭菜草地表层土壤活根量波动在32.25%~45.18%,死根量波动于32.32%~51.2%;小灯心草草地表层活根和死根量波动较大,于29.68%~6?

The development of the VA mvcorrhizas in apple trees grown under natural condi-tions was studied. ResuIts showed that VA mycorrhizas infected maturation zone andelongation zone of the young roots of 5 apple varieties.Typical vesicles and corbuscules werefound in the cortex cells of the roots.The diameter of internal and extemal hypha was 2.1~4.5 μm. The vesicles were mainly shaped in ellipse and glo bule. Significant differences invesicle number, arbuscale percentage,amount of infection points in root and infection...

The development of the VA mvcorrhizas in apple trees grown under natural condi-tions was studied. ResuIts showed that VA mycorrhizas infected maturation zone andelongation zone of the young roots of 5 apple varieties.Typical vesicles and corbuscules werefound in the cortex cells of the roots.The diameter of internal and extemal hypha was 2.1~4.5 μm. The vesicles were mainly shaped in ellipse and glo bule. Significant differences invesicle number, arbuscale percentage,amount of infection points in root and infection rate byhypha were foung among the apple varieties.Infection of VA mycorrhizal fungi was also dif-ferent with the root types,the thin root in diameter(0.1~0.5mm) had the highest infectionrate,The mycorrhizas were not different morphologically in various layers of soil, but the in-fection rate and the development status were different.

研究了苹果树VA菌根在自然条件下的发育状况。观察结果表明:VA菌根结构主要位于各供试品种新生根的成熟区和伸长区,在根皮层细胞内具有典型的泡囊和丛枝。根内和根外菌丝的直径为2.1~4.5μm,泡囊主要呈椭圆形和圆形。不同品种之间的泡囊数、丛枝百分率、根上菌丝着生位点数及侵染率存在显著差异。不同粗度的根系VA菌根真菌的侵染情况存在着差异,其中直径0.1~0.5mm的细根,VA菌根真菌的侵染率最高。不同土层内的菌根形态差异不显著,但侵染率及发育状况不同。

There were highly significant differences in drought resistance in dexes of ramie genotypes having same root-types. Relative water content (RWC),water potential and cell membrane stability were high for drought resistant ramie genotypes under drought stress. With the increase of stress, Peroxidase activity in drought - resistant genotypes trended from high to low, but that in drought-sensitive ones changed contrily, The proline levels in drought - sensitive genotypes showed higher than that in drought...

There were highly significant differences in drought resistance in dexes of ramie genotypes having same root-types. Relative water content (RWC),water potential and cell membrane stability were high for drought resistant ramie genotypes under drought stress. With the increase of stress, Peroxidase activity in drought - resistant genotypes trended from high to low, but that in drought-sensitive ones changed contrily, The proline levels in drought - sensitive genotypes showed higher than that in drought - resistant ones under lighter drought stress (0 - 12 days o drought stress ).The proline accumulation in drought - resistant genotypes showed a faster rate as compared with that in drought sensitive ones under more serious drought stress (12 - 24days of drought stress ). This is probably a postive responese pattern by free - proline accumulation for ramie to stresses.

同类根型的苎麻基因型抗旱性存在显著差异。在干旱胁迫下,抗旱性强的基因型叶片相对含水量、水势和细胞膜的稳定性高,苎麻叶片游离脯氨酸积累和过氧化物酶活性对干旱胁迫的反应存在基因型差异,随着干旱胁迫加强,抗旱性强的基因型过氧化物酶活性从低到高,而抗旱性弱的基因型则相反。在干旱胁迫0-12天内,抗旱性弱的基因型积累游离脯氨酸多于抗旱性强的基因型,而随着胁迫加强(干旱12-24天),抗旱性强基因型游离脯氨酸积累强度大于抗旱性弱的基因型,这可能是苎麻通过积累游离脯氨酸来抵抗逆境的一种积极反应模式。

 
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