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苗木     
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  seedling
    THE RELATIONSHIP BETWEEN SEED QUALITY AND SEEDLING QUALITY OF KOREAN PINE
    红松种子质量与苗木质量的关系
短句来源
    RESEARCH ON SEEDLING PLANTING DEPTH OF POPLAR PLANTATION
    杨树造林苗木不同栽植深度的研究
短句来源
    SEEDLING GROWING PATTERN AND NURSERY TECHNICS OF TEAK
    柚木苗木生长与育苗技术
短句来源
    Effect of cutting density on willow seedling
    扦插密度对柳树苗木的影响
短句来源
    Current Status and Trends in Researches on Seedling Quality Evaluation
    苗木质量评价的研究现状与趋势
短句来源
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  seedlings
    A COMPARATIVE STUDY ON GROWTH AND PHOTOSYNTHETIC ACTIVITY OF DIFFERENT KINDS OF POPLAR SEEDLINGSⅡ. NET PHOTOSYNTHETIC RATE, PHOTORESPIRATION AND HILL REACTION AS INDICES FOR BREEDING CLONES
    不同种类杨树苗木的生长和光合性能的比较研究 Ⅱ 净光合速率、光呼吸和Hill反应等光合性能指标
短句来源
    To Study the Standard of Quality about Seedlings Grade of Rhus verniciflua in Guizhou……
    贵州漆树苗木质量分级标准研究
短句来源
    An Application of PV Technique to Study Drought Resistance of Pinus tabulaeformis and Platycladus orientalis Seedlings
    PV技术在油松侧柏苗木抗旱特性研究中的应用
短句来源
    TESTING ON WILTING COEFFICIENT OF SEEDLINGS OF SEVERAL MAJOR PLANTING SPECIES IN JIULONG HILL,BEIJING
    北京九龙山四种造林苗木凋萎系数的测定
短句来源
    A Study on the Quality of Koyama Spruce Seedlings
    红皮云杉苗木质量的研究
短句来源
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  nursery stock
    Research and Test of 2GP-20 Model Nursery Stock Root Cutting Machine
    2GP-20 型苗木切根机的研究与试验
短句来源
    Study on Growth Rhythm of First year Nursery Stock of Zhonglin 46 Poplar
    中林46杨第一年苗木生长规律的研究
短句来源
    The Investigation and Analysis for the Beijing Nursery Stock Market
    北京市园林绿化苗木市场的调查与分析
短句来源
    Study on a Sampling Plan of Limit Quality Control for Nursery Stock
    极限质量控制型苗木验收方案的研究
短句来源
    A correlation research on determination of the daily fixed CO_2 gross in black Italian poplar clone and nursery stock production potentiality
    黑杨无性系日CO_2固定总量的测定及与苗木生产潜势的相关性研究
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  sapling
    As 100 days sapling in vessel which nursed before the middle ten days of March,more than 85% sapling height exceeded 40,20 and 25 cm and collar diameter exceeded 0.25,0.40 and 0.30 cm.
    3月中旬前培育的塑料袋容器百日苗,85%以上的苗木高度分别超过40,20和25cm,地径超过0.25,0.40和0.30cm。
短句来源
    Sex of adult Fraxinus mandshurica could be determined by the difference of the angle between the branch and trunk, the total contents of phenolic substances and the activity of SOD and POD. Determination of these differences laid both theoretical and practical foundation for further research on tree sex developing mechanism and sapling sex identification at early stage.
    利用枝条与主干的分支角的差异、酚类物质组分及含量分析和同工酶活性差异能够进行水曲柳成年树性别鉴定,可为树木性别发育机理研究和苗木性别早期鉴定研究奠定理论与实践基础。
短句来源
    Based on the research of Pinus koraiensis seed bank, the paper has studied on the pattern and its dynamic of Pinus koraiensis seedling and sapling distribution;
    本文在红松种子库研究的基础上,通过对近千个样方,7块样地和388株天然更新红松苗木的调查与分析,对红松幼苗幼树的分布格局及其演化;
短句来源
    According to the investigated datum of 26 quadrats from 3 colonies for the yearling Beautiful Sweetgum,a subject of the dimension sapling is approached,which now needs to be standardized for the Beautiful Sweetgum saplings forestation; and on the principle of overall judgament for various elements,advances that the standard of the yearling Beautiful Sweetgum in Huangshan area should be:Grade I sapling,over 70 cm in height,over 0 7 cm in ground diameter;
    根据枫香1a生苗3个群体26个样方的调查资料,探讨了枫香育苗造林中亟待规范的苗木规格问题,并按多因素综合衡量的原则,提出黄山地区枫香1a生苗木标准为:Ⅰ级苗,苗高70cm以上,地径07cm以上;
短句来源
    the survival percent of 5 year old sapling with soil mass and 3 year old transplant are higher than 2 year old truncated plant;
    以 5年生带土坨装袋大苗和 3年生移植苗苗木成活率、保存率均优于 2年生裸根苗 ;
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  seedling
Leaf area index reached its highest level at the spacing of 40 cm×40 cm, while the aboveground biomass of the seedling on an area basis increased as the cutting density increased.
      
Seedling quality at low cutting density was higher than that at closer cutting density.
      
According to the seedling quality and the number of plantable seedlings produced, the suggested cutting density for these four poplar clones was 50,000 stems/hm2.
      
pseudoacacia seedling roots, especially on the former, whereas it had little effect on that of Platycladus orientalis and Prunus armeniaca var.
      
In group T1, the seedling of baldcypres had lower apparent light use efficiency, lower apparent CO2 use efficiency and a lower net photosynthetic rate, with the net photosynthetic rate 24.9% lower than that of group CK.
      
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  seedlings
Effects of Cutting Density on Growth, Yield and Quality of Poplar Clone Seedlings
      
In order to identify the optimum cutting density for producing the highest number of plantable seedlings of poplar clones, a split-plot randomized block design was used to establish four cutting densities in plots.
      
Results indicated that the leaf area, stem and leaf biomass, and caliper of seedlings of all four poplar clones increased with the decrease in cutting density.
      
The quantity of first-grade seedlings (grade I) for clones Nanlin-95 and Nanlin-895 was achieved at the spacing of 40 cm×50 cm; for NL-1388 and NL-80351, it was 50 cm×50 cm.
      
According to the seedling quality and the number of plantable seedlings produced, the suggested cutting density for these four poplar clones was 50,000 stems/hm2.
      
更多          
  nursery stock
Contaminated nursery stock has probably resulted in serious infestation by M.
      
The discussion on the measures of increasing nursery stock quality in frigid region of China
      
Graft unions of nursery stock of grapevine (Vitis vinifera L.) collected in Japan yielded pathogenic and nonpathogenic strains of Agrobacterium.
      
Seedling survival for the first two years and acorn production for the first three years after outplanting are presented, comparing use of containerized RPM? swamp white oak seedlings to nursery stock.
      
Compared to bare root nursery stock that produced no acorns, some RPM? swamp white oak seedlings averaged 4.3, 5.2, and 6.3 acorns/seedling in the first three years after fall outplanting.
      
更多          
  sapling
mongolica was 3,840, 2,820, 2,710, 2,120, 1,470, and 1,390 kg/sapling, respectively.
      
This indicated that some genetic marks related to sexes of the species were found, which laid a foundation for sapling sex identification ofAcer negundo L.
      
For each coupe, genetic diversity measures were compared between a sample of the sapling regeneration and a corresponding control sample from bordering unharvested trees.
      
Nine plants have been grown to a young sapling stage in soil.
      
Field data showed a decrease in mid-day gs with decreasing k from soil-to-petiole, with sapling and adult plants having lower values of both parameters than juveniles.
      
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