苗木數 的英文怎麼說

中文拼音 [miáomùshǔ]
苗木數 英文
tree percent
  • 苗 : 名詞1 （初生的種子植物） seedling; sprout; shoots 2 （初生的飼養動物） the young of some animals ...
  • 木 : Ⅰ名詞1 （樹木） tree 2 （木頭） timber; wood 3 （棺材） coffin 4 （姓氏） a surname Ⅱ形容詞1 （木...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 苗木 : [林學] nursery stock; nursery-grown plant
  1. Most nurseries sell certified trees.

    多數苗圃都出賣合乎標準的苗木。
  2. The study shows that the early and late seed rains of constructive tree species in evergreen broadleaved forest at chongqing simian mountain had no activity. the bigger the seeds of the species and the earlier or later the seeds of the species matured, the higher the proportion of the seed rain damaged by animals. the quantitative variation of seed rain, active seed rain and seed bank did not take place at the same time. at early time, the number of seed banks of castanopsis fargesii, lithocarpus glabra, quercus myrsinrefolia, castanopsis plasyacantha, cinamomum subavenium. which own more active seed rain increased by geomitric series. the seed banks of castanopsis orthacantha and schima argentea were small, only survived a short time, and did not sprout next year. the quantitative dynamics of seed banks and their increasing or decreasing rates were decided by the proportion damaged by animals, dying speed of seeds and their resistance to pathogens and adverse circumstances, and the state of seed germination

    對重慶四面山常綠闊葉林建群種種子雨、種子庫的研究表明，建群種早期和晚期的種子雨無活力;種子偏早或偏晚成熟及大籽粒的樹種，其種子雨被取食的比例大;種子雨、有活力種子雨、種子庫三者的數量變化不一致;有活力種子雨量較大的栲、石櫟、小葉青岡、扁刺栲、香桂等，其種子庫密度在早期以近幾何級數的方式增長，元江栲、銀木荷種子庫小，存在時間短，翌年無一年生萌發苗;種子庫數量動態、消減率動態決定於種子被取食的強度、種子衰老的速度以及種子對病菌、逆境的抗性和種子萌發的整齊性
  3. The sowing and seedling raising experiments of castanopsis hystrix seed with different artificial treatments showed 1 - year - old c. hystrix seedling average height and average dbh with the treatments of hastening germination and cutting root were 22. 0 % and 117. 0 % higher than those without the root cutting treatment, respectively, the individual - tree lateral root number increased by 127. 71 %, the afforested survival rate increased by 23. 0 %

    摘要對紅錐種子採用不同人工處理的播種育苗試驗表明：紅錐種子經催芽斷根育苗處理后，其1年生苗木平均高和平均地徑分別比無斷根處理的高22 . 0 %和117 . 0 %單株側根數增加127 . 71 % ，造林成活率提高23 . 0 % 。
  4. Most nurseries sell certified trees which means that the trees have been checked and identified by state inspectors as true to name.

    多數苗圃都出賣合乎標準的苗木，這些苗木都經過國家檢驗員的檢查鑒定，合乎品種標準。
  5. For several decades, many scientists have been working hard at reducing production cost, simplifying the industrial process, increasing the coefficient of propagation, but as for the rapid propagation of most economic plants, people still can not transform the technique of tissue culture into great productivity in large scale

    這一點更像組織培養試管快繁的優點。越到後面的代數，繁殖的種質資源材料越多，繁殖的速度越快，成本越低。快繁苗木隨著按幾何級數高效增殖的同時，快繁生產成本卻不斷得到稀釋。
  6. In zhengzhou, nanyang, zhoukou and other areas in henan, 25 families, 35 genusis, 41 specisis of rare and protected trees in henan are introduced and domesticated by seed production and transplanting of wild seedlings, taking up 45 % specisis of rare and protected trees in henan

    摘要在鄭州、南陽、周口、駐馬店、許昌等地建立引種馴化試驗基地，採用種子育苗和移栽苗子的方法，大規模地系統引種馴化河南產珍稀保護樹木25科， 35屬， 41種，占河南產珍稀保護樹木總種數（ 91種）的45 % 。
  7. The changes of leaf water potential, water deficiency, water - holding ability under drought stress conditions were measured. the water parameters were calculated by using pressure - volume technique, also the abilities of maintaining turgor and adjusting osmotic potential of the four species were comprehensively evaluated. the effects of drought stress on photosynthesis, transpiration and water use efficiency were studied

    研究乾旱脅迫下葉水勢、葉水分飽和虧缺及葉保水力的變化；應用壓力室和pv技術測定四個樹種多項水分參數，並對四樹種滲透調節和維持膨壓能力進行綜合評定；研究乾旱脅迫對光合作用、蒸騰作用及水分利用效率的影響；測定生長指標及水分脅迫下苗木的生物量分配。
  8. On the base of tests, this paper discusses theoretically and analyses practically including the following parts by test : choosing the project of auto grafting ; studying and designing crushing resistance device and test, designing and theoretical analysis of the cutting mechanism, setting up mathematics model to optimize the parameters of the half - rotation cutting mechanism with matlab6. 5 language ; studying on secant and smooth cutting, single - sustained cutting and double - sustained cutting, finding the relation between cutting and fiber orientation of young plants

    本課題主要研究機械嫁接法的選擇；開發研製模擬切削試驗裝置和抗壓傷試驗裝置及其配套裝置；苗木物理機械性能試驗研究；運用最新的工程分析軟體matlab6 . 5對切削機構的參數進行優化；模擬切削正交試驗分析和spss軟體回歸分析；改進設計夾持機構和設計新型的半旋轉切削機構。
  9. The automation of the measurement of seedling morphological characteristics by photoelectric meters and computer vision is studied, and the automatic methods of the current grading systems are described respectively

    進而對苗木形態參數的光電測量和計算機視覺測量等自動測量方法進行了分析和研究，闡述了現有的苗木自動分級系統所採用的分級理論和方法，並對其性能進行了概要的評述。
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