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根系特点
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  root characteristics
     Study on Root Characteristics of the Population of Recombinant Inbred Lines Derived from Zhenshan 97/Minghui 63 and Their Effect on Grain Yield
     珍汕97/明恢63重组自交系群体的根系特点及其对产量的影响
短句来源
     The Drought Resitanhce of the Main Tree Species in Relation with Their Root Characteristics in the Western Aneas of Liaoning Povince
     从根系特点分析辽西地区树种的抗旱性
短句来源
     In order to illustrate the root characteristics of high-yielding rice and to provide further experimental base for the genetic improvement of rice root traits, the population of recombinant inbred lines (RILs, F12. F13) derived from Zhenshan 97 / Minghui 63, parents of Shanyou 63,an elite Indica hybrid in China, was solution-cultured and the relationship between yield formation and root morphological and physiological traits was systematically analyzed.
     在群体水培条件下,以珍汕97/明恢63重组自交系群体的204个株系(F_(12),F_(13))为供试材料,研究重组自交系群体的根系性状及根系有关性状与产量的关系,企图明确高产水稻的根系特点及影响水稻产量的主要根系性状,以期为水稻品种根系改良研究和根系性状QTLs定位提供依据。
短句来源
     Based on the zonal distribution of vegetation in rangeiand of Inner Mongolia, underground biomasses of plant communities and root characteristics of edificato and dominant species in main plant communities of various subtypes of steppe region were studied, in order to probe variantion of underground biomass among various plant communities.
     本文针对内蒙古天然草地植被地带性分布的规律,测定草原区各亚型主要群落地下生物量与组成该群落建群种或优势种根系特点的相关性,从而探讨各群落地下生物量之间的差异性。
短句来源
  “根系特点”译为未确定词的双语例句
     (7) Main root characters which significantly affected grain yield in RIL population were: root activity per plant, root activity per spikelet, root dry weight per plant, length of the longest adventitious root, length of mode roots, length and width of single adventitious root, among which root activity per plant had most significant effect on grain yield.
     (7)影响珍汕97/明恢63重组自交系群体204个株系产量的抽穗期主要根系性状为单株根系活性、颖花根活量、每株根干重、最长不定根长、众数根长、每马爱京:珍汕97/l刃恢63重组自交系群体的根系特点及其对产量的影响条不定根长及每条不定根粗。
短句来源
     Varieties whose seedlings possessed intermediate root had the highest survival percentage of repeated drought. The character of intermediate root morphology for per plant were from 7 to 8.5 roots,from 44 mg to 48 mg total root dry weight(RDW),in which from 36% to 45% rate of RDW below 10 cm,and from 0.22 to 0.24 ratio of root to shoot. Seedlings of some bred varieties grown under irrigation condition had high survival.
     具有中间型根系的材料反复干旱存活率最高 ,这些材料的根系特点是单株根数 7~ 8.5条 ,最大根长 2 0~ 2 2 cm,根总干重 44~ 48mg,其中 1 0 cm以下根干重占 3 6 %~ 45 % ,根冠比范围在 0 .2 2~0 .2 4。
短句来源
  相似匹配句对
     STUDIES ON GROWTH AND ACTIVITIES OF SOYBEAN ROOT
     大豆根系生长和活性特点的研究
短句来源
     Soybean root distributions in meadow-blackland and albic-soil
     大豆根系在土层中分布特点的研究
短句来源
     Notes on the Characteristics of Geography
     地理学的特点
短句来源
     Defoliation and root rottingbecome progressively serious as the disease advances.
     根系腐烂。
短句来源
     CHARACTERISTICS OF LITERARY CRITICISM
     文学批评的特点
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  root characteristics
After 48 h, the characteristics of oxidative metabolism and root characteristics ε and Lp became identical in untreated and treated plants.
      
differ greatly in both shoot and root characteristics.
      
We hypothesize that local uptake rate is at its maximum when neither soil nor root characteristics limit water flow to, and uptake by, roots.
      
The relationships among external hyphal length, root characteristics, soil P and soil moisture were also determined.
      
Root characteristics responded more strongly to nutrient heterogeneity.
      
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The growth of the root system of grain amaranth and its drought resistance were studied at different growing stages.The results were as follows:1. The rhythm of the growth of root system of grain amaranth is in a fast-slow,and then, faster-slower pattern.And the variation of the tempo of its growth seems to be related to the status of nutrition itself and the compactness of Soil in which the plant grows.2. The root system of grain amaranth is rather long. The maximum depth of its tap root at the maturing stage...

The growth of the root system of grain amaranth and its drought resistance were studied at different growing stages.The results were as follows:1. The rhythm of the growth of root system of grain amaranth is in a fast-slow,and then, faster-slower pattern.And the variation of the tempo of its growth seems to be related to the status of nutrition itself and the compactness of Soil in which the plant grows.2. The root system of grain amaranth is rather long. The maximum depth of its tap root at the maturing stage can reach 2.45m with numerous lateral roots. The maximum number of the primary lateral roots of an individual plant observed is 510,and the longest among them is about 86.5cm in length, It is supposed that the well-developed root system of grain amaranth might be closely related to its strong tolerance to drought and high adaptability to poor soil fertility.3. From the changing tempo of the top-root ratio, it could be that the value of the ratio is the largest during the first stage. i.e. it is the root system that grows slower, then the tempo of growth changes the other way round with the above-ground parts gradually taking the lead and the top-root ratio diminishing.4. Under the condition of lower soil moisture content (less than 10%)from 0—50cm depth during the ripening stage, the crop grew normally and gave a better output.

通过对籽粒苋根系生长与抗旱性的观察表明:1,籽粒苋一生中,根系的生长呈“先快、后慢、更快、再慢”的变化趋势,这种变化趋势与不同时期籽粒苋自身的营养状况及根系当时所伸达土层的土壤紧实度有关。2,籽粒苋根系很长,成熟时主根的入土深度可达2.45米,而且侧根多、根系发达。单株一级侧根数可达约510条。庞大的根系特点,与其较强的抗旱性密切相关。3,从不同生育阶段根系与地上部的生长变化规律看:在3、4真叶期以前,籽粒苋以根系生长为主,地上部生长缓慢。以后随着生长期的推移,逐渐过渡到以地上部生长为主。4,籽粒苋抗旱性很强,当接近收获,土壤水分0~50cm降至10%以下时,整个田间生长基本正常,可获得较好产量,

The root systems of nine varieties of alfalfa with root tiller which were introduced can be classfied main root, side root, level root and root tiller. The characteristic of root tiller is that it has level side roots with inflated part, on which buds and sprouts are formed. The root tiller of Spreador, Roamer, Pambler, Drylander and Kane is obvious. The percentage of the plant with root tiller is between 20~24%. The number of level root in each plant is 14 to 16,which concentrated distribution in 7~20cm soil...

The root systems of nine varieties of alfalfa with root tiller which were introduced can be classfied main root, side root, level root and root tiller. The characteristic of root tiller is that it has level side roots with inflated part, on which buds and sprouts are formed. The root tiller of Spreador, Roamer, Pambler, Drylander and Kane is obvious. The percentage of the plant with root tiller is between 20~24%. The number of level root in each plant is 14 to 16,which concentrated distribution in 7~20cm soil layer. The root tiller nodes appear on the level root or cross area of roots. Ramber plant expands most greatly, the largest crown canopy can reach 3.4m~2 during the third year of growth phase,which is 2 to 6 times as large as that of common alfalfa. The performance of root tiller is related to the factors of soil type and so on.

本文对引进的九个根蘖型苜蓿品种的生育期、形态特征、根系特点作了观测。其根系可分为主根型、侧根型、水平根型和根蘖型四大类。根蘖的显著特点是有水平侧根,根上有根蘖膨大部,其中有芽或幼枝形成。Spreador、Rangelander、Roamer、Rambler、Drylander、Kane六品种根蘖明显,根蘖株率在20~40%之间;一般每株有水平根14~24条,集中分布在7~20厘米土层内,根蘖节分布在各级水平根上或根的交叉处。植株扩展面积最大的是Rambler苜蓿。生长第三年孕蕾期的冠幅最大可达3.4m~2,为普通苜蓿的2~6倍。根蘖的表现与土壤类型等因素有关。

Based on the zonal distribution of vegetation in rangeiand of Inner Mongolia, underground biomasses of plant communities and root characteristics of edificato and dominant species in main plant communities of various subtypes of steppe region were studied, in order to probe variantion of underground biomass among various plant communities.

本文针对内蒙古天然草地植被地带性分布的规律,测定草原区各亚型主要群落地下生物量与组成该群落建群种或优势种根系特点的相关性,从而探讨各群落地下生物量之间的差异性。

 
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