lower leaf 中文意思是什麼
lower leaf
解釋
分層回採的下層-
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。 -
Middle part light handle, cylindrical, have relief 3 leaf, being with a tight waist, china makes and is decorated with colluding and connects with the cloud line, upper and lower contrast, extremely rich rhythmical image
中部為燈把手，為圓柱形，上浮雕三葉，中束腰，下飾以勾連雲紋，上下對照，極富韻律感。 -
Camellia granthamiana is a type of tree, its leave alternate, elliptical, coriaceous, margin with small blunt teeth. upper leaf surface is shining darkgreen, lower is paler and with veins protruding and clearly marked
大苞山茶是一種常綠喬木，葉互生，橢圓形，具革質，葉面光亮深綠色，葉背色淡，有清晰葉脈琥凸出，而葉緣具細小的純。 -
Camellia granthamiana ) is a type of tree, its leave alternate, elliptical, coriaceous, margin with small blunt teeth. upper leaf surface is shining darkgreen, lower is paler and with veins protruding and clearly marked
大苞山茶是一種常綠喬木，葉互生，橢圓形，具革質，葉面光亮深綠色，葉背色淡，有清晰葉脈琥凸出，而葉緣具細小的純齒。 -
The quantity of increased leaf efficiency contributed to the aboveground biomass gain after defoliated are different at different irradiance. at the initial stage, the increased leaf efficiency of defoliated plants contributed more to biomass increment of aboveground under higher light level than those under lower irradiance. as the treatment time extended, the contribution to growth of increased leaf efficiency of plants under intermediate light level went beyond those under full irradiancy
（ 2 ）葉受損的植株葉效率顯著高於未受損植株；光照強度越高，植株的葉效率越高；受損植株增加的葉效率在不同光照條件下對生長的貢獻大小不同，處理初期，全光照下葉損失植株增加葉效率對地上部分的生物量增加貢獻大於中度光照，大於低光照下植株，隨處理時間的延長，中度光照下的植株增加葉效率對生長的貢獻逐漸超過了全光照下植株。 -
The combinations of the various aquatic plants showed good maintainability in water garden. the concentrations of tp, tn were kept lower effectively in the experimental pool ii ( planted with emersed aquatic plants ) and pool en ( floating and floating leaf aquatic plants and submerged aquatics ) the concentration of tp and tn was relatively higher in pool i which only planted with potamogeton crispus
用挺水植物和浮葉、漂浮植物組成的試驗池及用挺水植物、浮葉和漂浮植物、沉水植物組成的試驗池比由菹草組成的單一層次結構的試驗池更能有效地維持水體tp 、 tn含量，其景觀也更為豐富。 -
From lower to higher elevation, the capability for plant to produce ramet increases, the height of ramet decreases, the number of viviparous plantlets produced by genet increases, and the leaf number < wp = 6 > produced by the viviparous plantlets increased
隨著海拔的升高，植株的高度逐漸變矮，母體產生胎生苗的數目增加，胎生苗脫落時產生葉片的數目增加。 -
Recent studies of milkweed plants in and around the cornfields of maryland nebraska and ontario report far lower levels of bt pollen ranging from just six to 78 grains of bt corn pollen per square centimeter of milkweed leaf surface
最近在美國馬里蘭州內布拉斯加州和加拿大安大略省的玉米田所作的研究發現，不管在田裡或附近，馬利筋葉片上的玉米花粉粒更少，每平方公分只有6 78顆。 -
A spiral deformation occured in the lower part of the young leaf enclosed in the sheath.
在葉鞘裹住的幼葉下部呈現螺旋狀。 -
G. leaf s round wears away from the is small, maintained conveniently ; the working noise is lower than 75 decibels and dust pollution is little. vertical impactiong crusher. pcl - impact crusher. sand - making machines
該系列制沙機又俗稱為自擊式破碎機石打石破碎機八馬克制砂機八馬克沖擊式破碎機，立軸式破碎機，立式沖擊破等。 -
When sparsely - planted rice overgrew its earing period, light intensity in the mid - lower part increased, photosynthesis prolonged, activity of nitrate and peroxide decreased, protein content increased by more than 50 %, velocity of leaf ageing slowed, but accumulation of dry matter of grain accelerated and 1000 - grain weight increased too
摘要稀植栽培的水稻，抽穗后田間表現為中下部光強明顯增加，光合作用時間延長，硝酸還原酶和過氧化物酶活性降低，蛋白質含量增加50 %以上，葉片衰老延緩，籽粒干物質積累加速，千粒重提高。 -
In the fourth chapter, the effect of controlled alternative furrow irrigation on the ratio of root to shoot, filling rate, leaf physiological indexes, yield and water use efficiency of summer maize were discussed, and the lower limits of suitable irrigation for summer maize in controlled alternate furrow irrigation were analyzed and determined
29 ，表明干濕交替循環不僅可以減少每次灌水間隔期間的棵間土壤無效蒸發，而且也抑制了作物的奢侈蒸騰，因此作物需水量明顯減少，節水效果非常顯著，被證明是溝灌方式中最科學的一種灌水方法。 -
The average values of the stomatal index in the non - leaf organs in ca cereals were smaller than those of leaves. blanke put forward a new physiological process in fruit, ' fruit photosynthesis ', and featured with lower stomatal frequency ( blanke, 1989 ). the results here also showed that the significant lower stomatal frequency on non - leaf organs, indicating that the new physiological process might exist in these organs of cereals as well
其中小麥芒和穎片有發育較好的葉綠體結構，其基粒數可達普通葉的水平，但比旗葉少；外稃和穗軸都有完整的基粒跺疊，只是跺疊的數量較少；而內稃基粒少，基粒內囊體跺疊不整齊。 -
Fifty nine accessions of soybean [ glycine max ( l. ) merr. ] of 301 ones from huanghuaihai and middle - lower changjiang valleys were tested at seedling stage in two years for their drought tolerance by using the mean membership index value averaged over those of plant height, leaf number, root dry weight, stem and leaf dry weight. 4 tolerant accessions ( rank 1 ) and 2 sensitive ones ( rank 5 ) were identified
摘要從301份大豆品種中按根系類型選取黃淮海和長江中下游地區代表性材料59份，在苗期乾旱脅迫和非脅迫條件下對地上部和地下部性狀進行2年重復鑒定，發現材料間性狀隸屬函數值具有豐富遺傳變異，以株高、葉齡、根干重和莖葉干重隸屬函數的算術平均數為抗旱綜合指標，從中篩選出漢中八月黃、晉豆14 、科豐1號、圓黑豆等強耐旱型（ 1級）材料和臨河大粉青、寧海晚黃豆等乾旱敏感型（ 5級）材料。 -
Browning of the margins of the lower leaves spreads both inwards across the leaf surface and upwards on the plant ( cv. hurricane )
菊花缺鉀:葉緣黃化或棕褐色，但取決于缺鉀程度，植株生長不一定受到影響.下部葉片葉緣褐色斑塊向內擴散到整個葉片表面及向上擴展整個植株 -
The highest chl content and the highest photosynthesis rate of hull of a whole panicle were about 25 % and 20 % of those of flag leaf. ( 2 ) the absorption spectra of chl was different between flag leaf and hull, the absorbance of the medium that contain chl of hull was more strong than that of flag leaf in zone of short wavelength when the chl concentration of medium was the same. ( 3 ) the weight of the hull increased gradually after heading, the weight of the hull in the upper part of the panicle is higher than in the lower part of the panicle
谷殼與旗葉相同葉綠素濃度提取液的光吸收光譜特性不同，在短波區谷殼葉綠素提取液的光吸收明顯比旗葉葉綠素的高；在抽穗后，谷殼的重量會有所增加，但穗下部谷殼的重量始終比穗上部的輕；相關分析表明，谷殼的重量與最終粒重呈極顯著正相關關系。 -
The comparison of stomatal parameters in leaf cuticles between two fossil angiosperms from the pliocene in west yunnan and their nearest living equivalent species indicates a little higher atmospheric co2 level at that time than the present, while carbon isotopic composition of fossil cuticles demonstrates much higher carbon isotopic discrimination and slight lower water use efficiency, showing a warmer and wetter climate than today
摘要對滇西騰沖新近紀兩種被子植物葉片及其現存對應種的氣孔參數和碳同位素組成的綜合分析表明：當時的大氣co2濃度略高於現在水平；化石種的碳同位素分餾值高於現存對應種，但水分利用效率低於現存對應種；這證明當時的氣候條件比當前更為溫暖濕潤。 -
The self - poisoning effects of chinese fir plantation are studied through the seed germination experiment with the extracts of organs, bulk soils and rhizosphere soil of different rotation plantations. the results are as follows : there are some poisonous substances inhibiting germination of chinese fir seeds in soils of chinese fir plantations. the inhibiting effect becomes stronger and stronger with increase of planting generations. extracts from the organs of chinese fir trees also have some inhibiting effects on seed ' s germination, but the effect of leaf is the strongest. lower concentration extracts of underground vegetation may be favorable to the seed ' s germination whereas the higher concentration will reverse the results. it indicates that the “ self - poisoning ” effects of chinese fir plantations might be one of the reasons for poor natural regeneration and soil degradation of chinese fir plantation
利用不同栽植代數杉木人工林根際土、非根際土及杉木各器官浸提液進行杉木種子發芽試驗，研究杉木人工林自毒作用，研究結果表明：杉木林根際土及非根際土中均存在抑制杉木種子萌發的物質，隨栽植代數增加抑制作用更趨明顯；杉木各器官浸提液對杉木種子萌發也有抑制作用，其中以杉木葉的抑制作用最為明顯，杉木林下常見植物對杉木種子發芽則表現為低促高抑效應，說明杉木人工林存在自毒作用，這可能是杉木連栽障礙的原因之一。 -
When inadequate n was added, the chloroplast structure in mesophyll cell was damaged in ear leaf, the amount of carbohydrate decreased in mestome sheath, and excessive n - redistribution and n - transportation to grain from vegetative mass appeared, which resulted in earlier leaf senescence. excessive n application led to too high activity of nitrate reductase, excessive vigorous nitrogen metabolism and too much exhaustion of carbohydrate in ear leaf, which resulted in the lack of enough carbohydrate in the lower leaf, meanwhile, the expansive chloroplast grana lamellae in leaf mesophyll cell and starch grain without nuclear in mestome sheath cell was observed, which led to the decrease of chlorophyll content and photosythetic capacity in maize leaf, then the early senescence occured
氮肥用量不足導致穗葉葉肉細胞葉綠體結構性差，維管束鞘細胞碳水化合物累積減少，營養體氮素再分配率大而引起葉片早衰；而過量供氮則導致生長後期硝酸還原酶活性過高，氮素代謝過旺，消耗了大量碳水化合物，以致下位葉不能得到充足的碳水化合物供應而提早脫落，同時葉肉細胞葉綠體片層結構膨脹，呈「肉汁化」特徵，維管束鞘細胞澱粉粒大量消耗，無核澱粉粒出現，從而葉片葉綠素含量下降，光合能力降低而出現早衰。 -
On the contrary, nitrogen concentration decreased with increasing light levels. defoliation led to lower leaf nitrogen content but higher nitrogen concentration contrasted with controlled plants. researches showed that leaf nitrogen content and leaf nitrogen concentration change with different light and defoliation treatment
研究發現，單位葉重和單位葉面積n含量呈現不同變化的原因是由於不同處理植株比葉重之間有顯著差異的緣故，光照水平的降低和葉損失都會使植株的比葉重減小。
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