根莖率 的英文怎麼說

中文拼音 [gēnjīnglǜ]
根莖率 英文
root/shoot ratio
  • 根 : Ⅰ名詞1 （植物的營養器官） root （of a plant） 2 （比喻子孫後代） descendants; posterity 3 [數學] ...
  • 莖 : 名詞（植物體的一部分） stem （of a plant）; stalk
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 根莖 : rhizome; rootstock; tuber
  1. In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays

    本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。
  2. The materials as explant in transformation come from birch leaf, stem segment and leaf stalk, and the spider toxin gene was used as foreign gene for this transformation experiment. it showed that the best explant was the big leaf, on which the transformation frequency was 22 %. by gus detection, there were 43 percent of the plants with kanamycin resistance, and 100 percent of positive result, by pcr amplification, was gotten from random sampling

    利用雙元載體的根癌農桿菌lba4404菌株（ agrobacteriumtumefaciens ） ，含質粒pyhy （目的基因及npt 、 gus基因） ，對白樺試管苗莖段，葉柄，葉片三種外植體進行侵染，結果表明：大葉片生長勢強，為轉基因的最優外植體，轉化率能夠達到22 。
  3. The average length of spacer varies by hemarthria japonica > calamagrostis epigeios > leymus chinensis > c. rigidula > hierochloe glabra > arundinella hirta among 6 species of rhizome grass, and is very changeable for each species

    7種根莖禾草生殖生長比率平均為16 540 ，種間變異不大，生殖分配1平均為zi 010 ，變化范圍在14刀2 27
  4. On the contrary, stem - derived forms of clonal plants more f requently occur in colder and drier habitats corresponding to higher latitude and / or higher elevation. individual types of clonal growth with sprouting are more frequent in warmer and wetter habitats, such as shrub forest, broad - leaves forest and bamboo forest. individual types of clonal growth with rhizome are more frequent in colder and drier habitats, such as alpine shrub forest, grassland and desert steppe

    根起源克隆植物中，根出條型植物的生境條件和根起源克隆植物的相同，出現在灌叢、闊葉林和竹林中的頻率較高；莖起源克隆植物中，根莖型植物的生境條件和莖起源植物的相同，出現在水生植被、草甸和草原中的頻率較高，而匍匐莖型植物在較溫暖、濕潤、陰郁的生境中出現頻率較高。
  5. 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。
  6. Applying the relevant analysis approach of gray system, the authors analyze and assess the average of 9 pasture species on the 12 indexes, including the total covering rate, the hight of grass, green period, reviving period, resisting disease, tiller, length and amount of root, weight of root, weight of leaf and stem, tasty impression, and study the application of gray analysis in the comprehensive assessment

    摘要應用灰色系統中的關聯分析法對9種牧草的總蓋度、草層高度、根系人土深度、青綠期、越冬率、抗病性、分孽數、根長、根數、根重、莖葉干重、適口性等12項主要性狀進行了綜合評估，並討論了灰色分析法在選擇坡耕地水土保持牧草草種綜合評估中的應用。
  7. 2 % 22 % and 29 % respectively less than using other three knives at cutting speed of 500mm / min when the moisture contents of rootstalks was 48. 2 %. the cutting forces were tested at four different parts of rootstalk that were the middle part along a radius, the tip part along a radius, the middle part along axis and the stalk part along a radius, and the force at the middle along a radius is the largest and increase 32 % 45 % 111 %, respectively more than at the other three parts. the force increase 37 % to cut the rootstalks from the areas one crop a year more than that from two crops a year

    試驗結果表明，根茬含水率愈高，剪切力愈小，根茬含水率與剪切力近似為二次曲線關系；刀片剪切速度愈快，剪切力愈小；凸曲線、斜線、凹曲線和直線四種不同的刀刃曲線對整株根茬剪切力依此由小到大，凸曲線和斜線剪切時有一定程度的滑切作用，所以剪切力相比較小，當根茬含水率為48 . 2 ，剪切速度500mm min時，與其他三種曲線相比凸曲線型刀刃的剪切力依次分別減少了7 . 2 、 22和29 ；對根茬中部、梢部和根部的剪切力，在相同試驗條件下，徑向中部最大，比梢部，軸向根部和根部莖稈所需剪切力分別增加32 、 45和111 ；當含水率為48 . 2 ，刀片的剪切速度為500mm min時，一年一熟玉米根茬比一年兩熟的玉米根茬剪切力增大37 。
  8. When the concentration is low, 0 - 6 mg / kg, the content of cadmium in the root of alfalfa is lower than in the stern and leaf, but two times higher than the forage hugiene standard of our country. when the concentration is higher than 10mg / kg, the content of cadmium in the root is 20 times higher than the standard, but the content of cadmium in the soil decreased obviously, so alfalfa of this condition is the best alternative for renovating polluted soil. when 200mg / kg znic is added, the poison of cadmium is decreased dramatically with the grow time increasing, the cadmium effect on living number decreased

    盆栽試驗中鎘對紫花苜蓿的出苗率、根、莖的生物量的影響與種子的萌發呈現同一規律；鎘在紫花苜蓿體內的含量也與土壤中鎘濃度有關：低濃度0 ? 6mg kg時，紫花苜蓿根部的鎘含量低於莖、葉中的鎘含量，但己超出我國飼料衛生標準2倍，濃度大於10mg / kg時，根部的鎘含量比飼料衛生標準高出20倍，而土壤中鎘含量大大降低，所以此時的紫花苜蓿是修復鎘污染土壤的較好的植物；當加200mg kg鋅后，鎘的毒害作用明顯減小，隨著生長時間的增長，生物量受鎘的影響也在減小，同時紫花苜蓿體內的鎘含量大幅度降低，有些己降到飼料標準以下。
  9. An in vitro plantlet regeneration system was established from rhizome lumps in polygonatum cyrtonema hua and mannose - binding lectin in cultured rhizome was determined by sds - page and hemagglutination assays and also analysised by rt - pcr and comparison of the nueleotide sequences and amino acid deduced with natural polygonatum cyrtonema hua lectin ii.

    利用野生囊絲黃精的幼嫩根狀莖作外植體，誘導形成愈傷組織，愈傷組織分化出不定芽，進而產生試管苗，試管苗經移栽試驗，成活率為75 ，其外觀性狀與野生植株無明顯差異。
  10. 4u series potato harvester is mainly used for harvesting potato, garlic, sweet potato, peanut and other crops under the ground with the merits of high efficiency, lower breakage, running fast without trembling, no blocking by the grasses, the structure is simple and the operation life time is long, etc

    天盛機械製造有限公司生產的4u系列土豆收獲機主要用於收獲土豆、大蒜、地瓜、花生等地下根莖農作物.具有收獲效率高、破損率低、運轉輕快無震動、不堵草、漏土快、結構簡潔、使用壽命長等特點。
  11. A. sylvestri allocated more resource to leaf and stem, the average ratio of leaf biomass in february, march and april was 49 %, which could fix more matter via photosynthesis. c. smyrnioides allocated more resource to root, so the resource to aboveground was relatively small, the ratio was only 26 %, and the carbon assimilation via photosynthesis was weak

    峨參將更多的物質分配到了葉和莖， 2 、 3和4月葉片生物量比率平均為49 ，可光合生產更多的物質；而明黨參則將相對多的物質分配到了根部，分配到地上部分的物質較少，僅為26 ，光合碳固定能力較弱。
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