leaf age 中文意思是什麼

leaf age 解釋
葉齡
  • leaf : n （pl leaves）1 葉；〈集合詞〉葉子；茶葉，煙葉。2 花瓣。3 （書刊等的）一張（兩面）。4 金屬薄片，...
  • age : n 1 年齡。2 成年〈滿廿一歲〉。3 老年，晚年。4 壽命；終生，一生。5 時代，時期，年代。6 〈口語〉很...
  1. 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。
  2. The paper studied comprehensive performance of ten different mixed lawn grass at chengdu city, the characteristics of lawny planting speed, greensward density, leaf texture, green vegetation index, disease resistance, the cover age, uniformity and comprehensive quality were evaluated

    摘要對10個混播組合草坪草在成都地區的綜合表現進行了研究，分別對建植速度、密度、葉片質地、綠度、抗病性、蓋度、均一性、綜合評定共8項質量進行綜合評價。
  3. Corresponding relationship of maize leaf age index, ear differentiation and shape

    玉米葉齡指數與穗分化及外部形態的對應關系
  4. Leaf age index

    葉齡指數
  5. The experiment of the influences of throwing cultivation of different leaf age on the output of till - less seedling throwing rice

    不同葉齡拋栽對免耕拋秧稻產量的影響試驗
  6. A remnant or trace of an organism of a past geologic age, such as a skeleton or leaf imprint, embedded and preserved in the earth ' s crust

    化石埋置並保存於地層中的古生物遺體、遺物和其生活遺址，如骨骸、葉子的印痕等
  7. Thus, it was suggested that adult leaf - dip bioassay could be used as a rapid monitoring method of neonicotinoid resistance for b. tabaci, and adults of natural mixed age could be used to replace adults of the same age, and both cotton leaf and eggplant leaf could be used as materials of monitoring insecticide resistance of b. tabaci

    因此，認為可以採用與田間實際用藥情況相接近的成蟲浸葉法進行煙粉虱對煙堿類殺蟲劑的抗藥性監測，而且可採用自然混合日齡成蟲代替飼養的相同日齡成蟲直接進行生物測定，棉花葉和茄子葉均可作為抗藥性生物測定的試驗材料。
  8. The allocation of biomass to leaf and branch obviously decreased with increased age, and the same was true for root but with a slight decrease, while allocation to stem increased substantially with increased age

    葉、枝、干生物量占總生物量比例與年齡擬合的效果較好，且最佳方程均為三次方程。
  9. The analysis of isozyme and rapd of seeds dedicate that there were abundant variations on isozyme and genomic dna, there were also ecologi - cal multiplicity between species, ecotypes or plants with differents age in ceratoides l. there were obvious differences between reproductive organ ( seed ) and nutritive organs ( root, stem and leaf )

    同工酶和rapd分析表明，該屬植物種間及生態型間存在明顯的同工酶和dna多態性。生殖器官（種子）與營養器官（根、莖、葉）的同工酶差異顯著。
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