leaf area 中文意思是什麼
leaf area
解釋
葉面積-
The study investigated aboveground growths of caragana korshinskii and artemisia ordosica planted in four modes, revealing that in different planting modes their densities, heights and canopy width and biomasses remained unchanged or tended to decrease slightly ; the young shoots of a. ordosica annually grew in a s - shaped cure and the young shoots of c. korshinskii grew fast in spring and grew slowly or cease to grow from july on ; the biomasses and leaf area indexes of c. korshinskii and a. ordosica annually varied in a double peak curve and there were 8 annual plants that invaded in the four planting modes and formed higher coverage ; the quadrat with only a. ordoska appeared to have obviously lower coverage and biomass that the other three quadrats
摘要對騰格里沙漠東南緣2種人工植被檸條和油篙在4種配置方式下地上部分的生長動態進行了研究，結果表明：不同配置方式下它們的密度、高度、冠幅和生物量基本不變或略微呈下降趨勢；油篙新梢的年生長動態呈s型曲線，檸條新梢春季生長速度較快， 7月份以後生長速度緩慢或基本停止生長；檸條、油篙地上生物量和葉面積指數的年變化均表現為雙峰型， 4種配置方式下共有8種1年生植物人侵，並具有較高的植被蓋度；同其它3個樣地相比，純油篙樣地1年生植物的密度、蓋度和生物量明顯偏低。 -
On the whole, the tr and gs of leaf of anthurium andraeanum lind decreased under elevated [ co2 ] and wue increased, these might be beneficial for the increase of pn and chlorophyll as well as accumulation of organic compounds which promoted plant growth and florescence and flower leaf area, furthermore, the improvement of quality
總之， co :加富條件下紅掌葉片的氣孔導度與蒸騰速率降低，水分利用效率增加，凈光合速率提高，有利於碳水化合物的積累，促使紅掌的各項生長指標（株高、葉面積、生物量）提高，開花比率提高，佛焰苞面積增大，提前且延長了花期，提高了紅掌的觀賞品質。 -
The earth ' s albedo varies mainly through varying cloudiness, snow, ice, leaf area and land cover changes
地球的反射率主要因雲的變化、冰、雪和土地覆被狀況的改變而變化。 -
There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared
實驗研究的兩種菊科（ compositae ）植物（準噶爾沙蒿（ artemisiasongaricaschrenk ）和沙漠絹蒿（ seriphidiumsantolinum （ schrenk ） poljak . ） ） ，形態解剖方面的變化表現為：隨日齡增加，根長/株高比值日益增大；根系逐漸發達；體積與葉面積比逐漸增大；表皮細胞體積變小；角質層增厚；根外部出現加厚的木栓層；氣孔下陷；葉、莖部的表皮毛密布，柵欄組織日益發達；而細胞間隙日漸變小；海綿組織逐漸消失；葉面結構常為典型旱生結構? ?等葉面；晶細胞及纖維細胞數目增多；輸導組織、機械組織日漸發達；具有維管束鞘等等。 -
Measuring methods of eucalypt leaf area with digital image processing technology
基於數字圖像處理的桉樹葉面積分析 -
Optical microscopy and electron microscopy were employed to study the microstructure and ultrastructure of the leaves of low temperature germplasm and measure or count the lengths of diachyma cells, number of diachyma cells per unit leaf area, chloroplast number per diachyma cell, the number of diachyma cell layers and the number of granum lamella of low - temperature wheat germplasm
應用光學顯微鏡和電子顯微鏡研究了小麥低溫種質葉片顯微和超微結構，測量統計了葉肉細胞長度、單位面積葉肉細胞數目、單個葉肉細胞中的葉綠體數目、葉肉細胞層數和葉綠體基粒片層數。 -
Normalized leaf area index model for summer maize
夏玉米葉面積指數增長模型的研究 -
In some xerophytes, such as cacti, most of the leaves are modified into spines, greatly reducing the leaf area for transpiration ; the photosynthetic function of the leaves is taken over by the green stems
在一些旱生植物中，如仙人掌，大部分的葉片都特化為刺，極大的減少了葉片區域的蒸發作用，同時光合作用為綠色的莖所承擔。 -
The paper made an ecological anatomy, a cultivation experiment on the lime - soil habtat and an analysis on the diurnal variation of photosynthetic an transpiration rate from three aspects of morphology, transplantation, physiology. the conclusion is that : ( 1 ) from the viewpoint of morphological anatomy, it has typical xerophyte structure such as strong root system, small leaf area, dense floss under the leaf surface, high stomatal density, the small opening degree, developed vessels and palisade tissues etc
從形態學、栽培學和生理學三方面對迷迭香進行生態解剖、石灰土上的栽培實驗以及光合蒸騰速率日進程的分析，得出以下結論： （ 1 ）在形態解剖上：迷迭香具有發達的根系，較小的葉面積，葉片下表面密被絨毛，氣孔密度大，開度小，厚的角質層和發育良好的木質部和柵欄組織等典型的旱生結構。 -
2. the software of measuring the areas of 2d - materials could exactly count the leaf area. the correlation coefficient of leaf area measured by traditional copy method and scanning method was significant high ( r = 0. 997l )
2 、該軟體能夠快速精確的測定葉片面積，計算機掃描法與傳統的復印稱重法測定植物葉面積的相關系數r為0 . 9971 ，達極顯著水平。 -
Simulation of greenhouse cucumber leaf area based on radiation and thermal effectiveness
基於輻射和溫度熱效應的溫室水果黃瓜葉面積模型 -
The knowledge model for the dynamics of main development indices includes submodels of suitable development stages, plant height, leaf area index, dry matter accumulation, numbers of fruit branch, square and boll, plant nutrient accumulation
生育指標動態知識模型包含有適宜生育期、株高、葉面積指數、干物質積累量、果枝和蕾鈴數目，營養物質積累量等。 -
The knowledge model for the dynamics of main development indices as plant height, leaf area index, dry matter accumulation, numbers of fruit branch, square and boll was developed based on the physiological time and target yield and quality. in addition, the dynamic relationships between plant nutrients and dry matter accumulation was quantified. all these sub - models provide the reference standards for quantitative and dynamic growth diagnosis and management regulation
進一步根據產量和品質目標構建了株高、葉面積指數、干物質積累量、果枝和蕾鈴數目變化與生理時間之間的動態關系知識模型，初步量化了棉株養分積累量與干物質積累量之間的動態關系，從而為定量化的苗情診斷和管理調控提供了參考標準。 -
3. the effect of water on leaf was very marked. leaf length and leaf area increase were restrained under water stress and excessive water supply could limit them, too
3 、水分對芨芨草葉片的生長影響極為明顯，水分越低，葉片長度越小，單葉葉面積越小，但水分過多，會抑制葉片的伸長。 -
Exposure to uv - b radiation reduced the height, leaf area of plants, and the weight of roots, stems and leaves. as a result, total biomass and accumulation of dry matter were decreased. exposure to uv - b radiation significantly increased the stomatal diffuse resistance and decreased the transpiration rate ; however it hardly affected the water content of seedlings
含量、而增加zr的含量;導致氣孔阻力增加，蒸騰速率下降:對括樓植株水分含量無影響;使植株生長受抑，表現為矮化，植株各器官及總生物量增加均受到影響，干物質積累量也相應下降; uv . b輻射對括樓根冠比無影響。 -
Indicators such as plant height stem thickness, leaf quantity, leaf area, chlorophyll content, photosynthetic rate, transpiration rate and yield of tomatoes all increased as root zone temperature increased
結果表明，隨著根區溫度的增加，番茄的株高、莖粗、葉片數、葉面積、葉綠素含量、光合速率、蒸騰速率、產量均增加。 -
Secondly, soybeans were cultivated under different nitrogen level in nutrient solution ; the soft was used to statistics the histogram of leaf rgb color value and to calculate the leaf area. the statistics of biomass also was done. the combination of the two ways has revealed the relationship between the digitization rule of rgb and nitrogen level in leaf
第二部分在不同的供氮條件下，培養出具有典型缺氮特徵的大豆，利用診斷軟體對葉片圖像進行rgb灰度直方圖統計和葉面積的綜合計算，同時也進行生物量的統計，兩者結合揭示數字化葉片rgb特徵值與供氮水平之間的規律。 -
Light intensity, nutrient availability and salinity all have significant effects on clonal growth and clonal morphology of h. ruthenica. deep shade, low nutrient availability and high salinity markedly reduced its growth. moreover, the degree and pattern of plasticity in biomass, leaf area, number of ramets, stolon length, petiole length and root to shoot ratio in response to salinity demonstrated genotypic variation
深度遮光、低養和高鹽均顯著削弱金戴戴的生長，其生物量、葉面積、分株數、匍匐莖長及葉柄長和根冠比對基質鹽分的可塑性大小和格局顯示出基株間的差異。 -
The results indicated that liangyoupeijiu showed better plant and leaf type, higher ratio of grains to leaf area and larger photosynthesis area, stronger ability of population dry matter accumulation during the period of vegetative growth especially from heading to being mature, longer leaf duration and grains - filling after heading than that of its parents and controls s ; more grains per panicle, lager all sink per plant and 1000 - grain weight
結果表明：兩優培九株葉型好，粒葉比和光合面積大，營養生長期群體干物質積累能力強，始穗后葉片功能期長、籽粒灌漿持續時間較長，抽穗期至成熟期的干物質增量明顯強于其親本和對照組合；穗頸節間維管組織比親本及對照發達；兩優培九單株總庫容量大，每穗實粒數多，千粒重較大。 -
This review focuses on morphological and physiological reactions of fruit tree to water stress. leaf area, root growth and microstructure of leaves and roots were investigated. some physiological and biochemical index of fruit tree leaves and roots under water stress, such as variations of stomatal aperture, photosynthesis, photoinhibition, metabolism of lipoxygenase, content of proline, nuclear acid and endogenous phytohormones, were summarized
從水分脅迫對果樹葉、根的形態指標及顯微結構，葉片氣孔行為、光合作用、光抑制、活性氧代謝、脂氧合酶代謝、多胺代謝、脯氨酸、核酸代謝、內源激素變化等生理生化方面綜述了近十幾年來的研究成果，為全面研究果樹抗旱機理及進一步制定抗旱措施奠定理論基礎。
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