populus 中文意思是什麼

The effects of cold acclimation on the freezing resistance and total soluble protein in populus tomentosa seedlings

低溫鍛煉對毛白楊幼苗抗凍性和總可溶性蛋白質的影響

Proteins associated with callus proliferation and adventitious bud differentiation of populus euphratica

胡楊愈傷組織繼代增殖和器官發生中蛋白分子標記的研究

Callus induction, bud differentiation and adventitious root regeneration from leaves of populus tomentosa

芽的分化及不定根的再生

We still skim the backwaters of ponds and streams for the seed of betula, acer salix and populus species.

我們仍然要在池塘的靜水上和溪流中撈取樺木，槭樹、楊、柳等樹的種子。

Impact of salt stress on peroxidase activity in populus deltoides cambium and its consequence

鹽脅迫對楊樹形成層過氧化物酶活性及其效應的影響

Establishment of leaf - explant regeneration system of populus alba p. berolinensis

銀中楊葉片外植體再生體系的建立

Genetic relationship between parents and hybrid progenies of populus alba l. 215 ; ulmus pumila l. using aflp marker

標記研究銀白楊215 ;白榆的親子關系

In the natural condition, the following five stages are the plant restoration and succession process of luota : populus adenopoda shrub forest, rhus chinensis, pyracantha fortweana shrub forest, liquidambar formosana, corizria sinica forest, pinus massoniana, carpinus rurczaninowii forest, karst evergreen - deciduous forest

只有少數林窗存在。自然恢復林在植被恢復程度上遠不如喀斯特常綠落葉林，只在密閉的灌木叢中分佈著少許高大的喬木。

The protein - storing cells in swietenia macrophylla were found to be populus - type, i. e. ordinary parenchyma cells containing both vacuolar protein inclusions and starch grains

用21kda蛋白質的抗血清進行兔疫印跡分析表明， 18kda蛋白質和21kda蛋白質有相同的抗原決定簇。

Fractal characteristics of tree crown of populus xiaozhuanica in shelterbelts

林帶小鉆楊樹冠的分維結構

Explosion pulping of triploid populus tomentosa carrat low pressure

三倍體毛白楊低壓爆破制漿研究

Discussion on introduction and seedling - culture of populus tomentosa triploid

三倍體毛白楊引種育苗試驗研究

Characteristics of lignin structure of triploid clones of populus tomentosa carr

三倍體毛白楊木質素結構特性研究

The study on chemical composing of triploid populus tomentosa carr. branch

三倍體毛白楊枝椏材化學組成的分析與比較

The effect of air flow method to the mathematical model of triploid of populus tomentosa carr

三倍體毛白楊滲透率數學模型的研究

Studies on fiber morphology and lignin distribution of the triploid of populus tomentosa carr

三倍體毛白楊纖維形態學參數及木質素微區分佈的研究

In different phases of development, vegetation systems in this region have changed from pioneer herbage species initially recovering in abandoned cropping lands ( bothriochloa ischemum, artenmisia giradii and stipa bungeana, artenmisia sacrorum, spodiopogen sibiricus and sophora flavecens, themeda japonica, and arundinella anomala ) to secondary shrubs ( hippophae rhamnoides, sophora viciifdia, and ostryopsis davidiana ), early forest community ( populus davidiana, betula platyphylla and platycladus orientalis with arbors or shrub assembling ), and finally liaotungesis community as the mature forest. in this study, soil profiles ( 0 - 5, 5 - 15, 15 - 25, 25 - 35, 35 - 50 cm soil layers ) were selected from typical vegetation systems representing for vegetation successions in the region

該區北部目前還保存有空間上完整的植被正向演替系列，即棄耕地先鋒群落草本群落（白羊草bothriochloaischemum 、茭蒿artenmisiagiradii +長茅草stipabungeana 、鐵桿蒿artenmisiasacrorum 、大油芒spodiopogensibiricus +苦參sophoraflavecens 、黃菅草themedajaponica或野古草arundinellaanomala ）灌叢群落（沙棘hippophaerhamnoides 、狼牙刺sophoraviciifdia 、虎榛子ostryopsisdavidiana ）早期森林群落（喬灌群聚、山楊populusdavidiana 、白樺betulaplatyphylla 、側柏platycladusorientalis 、 ）遼東櫟群落（ quercusliaotungensis ） 。

The species, heights, diameter breast heights, canopy widths and plant numbers in 38 quadrats of 6 belt transects, which were located in yingsu cross - section and kaerdayi cross - section lying in the lower reaches of tarim river where populus euphratica concentrated, were investigated to study the distribution patterns, aggregation intensities and distribution pattern scales of p. euphratica populations at different distances away from the river

摘要在塔里木河下游胡楊分佈集中的英蘇、喀爾達依斷面，設置了6條樣帶38塊樣地進行植被種類、高度、胸徑、冠幅、株數等因子調查，研究了不同離河距離胡楊格局分佈類型、聚集強度及其格局規模。

Trapping effects of populus canadensis bundles on helicoverpa armigera in field

加拿大楊枝把田間誘蛾效果觀察

Salicaceae a family of dicotyledonous trees, shrubs, and creeping forms including the willows ( salix ) and poplars ( populus )

楊柳科：雙子葉植物。楊柳科植物形態多樣，有喬木，灌木及蔓生種類。包括柳樹（柳屬）和楊樹（楊屬）等。