相对生长
- 与 相对生长 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The spatial-temporal distribution of NPP along NECT and its response to climatic change were also analyzed. Results showed that the change tendency of NPP spatial distribution in NECT is quite similar to that of precipitation and their spatial correlation coefficient is up to 0.84 (P 0.01). The inter-annual variation of NPP in NECT is mainly affected by the change of the aestival NPP every year, which accounts for 67.6% of the inter-annual increase in NPP and their spatial correlation coefficient is 0.95 (P 0.01). The NPP in NECT is mainly cumulated between May and September, which accounts for 89.8% of the annual NPP. The NPP in summer accounts for 65.9% of the annual NPP and is the lowest in winter. Recent climate changes have enhanced plant growth in NECT. The mean NPP increased 14.3% from 1980s to 1990s. The inter-annual linear trend of NPP is 4.6 gC·m-2·a-1, and the relative trend is 1.17%, which owns mainly to the increasing temperature.
结果表明:(1)NECT样带植被NPP的空间变化趋势同降水量的空间变化十分相似,由东到西逐渐降低,二者在空间上的相关性达到了0.84(P《0.01),说明NECT样带的植被NPP在空间分布上主要受水分趋动;(2)NECT样带植被NPP的年际变化主要是由各年份夏季NPP的变化造成的,夏季对NECT样带植被NPP的年际增长贡献率最大(67.6%),二者之间的相关性达到了0.95(P《0.01);(3)NECT样带的植被NPP积累期主要发生在5-9月份,这5个月的NPP占了全年NPP总量的89.8%,整个夏季(6-8月份)的NPP占了全年的65.9%,冬季(12-2月份)的NPP最低,基本为0;(4)近19年来的气候变化促进了NECT样带的植被生长,从1980年代到1990年代,NPP显著增加,年代际相对增长率为14.3%,平均年际绝对增长趋势为4.6 gCm-2(a-1,相对增长趋势为1.17%,这主要是由温度升高引起的。
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The new materials(N/BBCC and J/BBCC) and their transmigration parent put up the similar phenotypes in development stage,morphological characters,POD enzyme activity,and so on.But differences in male fertility,proline content and relative conductance rate were existed among them,in which the development of androecium in N/BBCC was abnormal,showing serious male sterility,and the proline content and relative conductance rate in N/BBCC and J/BBCC were much lower than their transmigration parent,C/BBCC.
两个新材料及其轮回亲本C/BBCC在生长发育时期、植株外部形态特征、POD酶活性等方面表现基本一致,但在雄性育性、脯氨酸含量及相对电导率上存在着明显差异,其中N/BBCC雄蕊发育不完善、花药瘦小、药内花粉量很少且多为无生活力的畸形花粉,表现严重败育;J/BBCC和N/BBCC的脯胺酸含量及相对电导率明显低于其轮回亲本C/BBCC。
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Using the polyethylene glycol simulated drought stress test, the growth, leaf and stem relative water content and protoplasmic membrane penetration of Arachis pintoi cv. Amarillo and A. duranensis krapov.
用PEG-6000模拟干旱胁迫的方法研究了阿玛瑞罗平托花生和杜兰落花生在O.5%、15%、25%PEG胁迫24h下的生长状况、叶片和茎相对含水量和质膜相对透性的变化规律。
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Main contents and conclusions are: 1 The ionization current was measured continuously by a charge-integration method with a computer after the introduction of radon into the chamber.
主要内容及结论:1充氡后利用计算机连续进行电离电流累积测量,得到了精细的电流随时间的变化曲线,可清楚看出氡及其子体的生成衰变造成的电离电流的生长—稳定—衰减过程,与理论计算值进行了比较,由电离电流衰减速度的变化得出氡吸附作用的影响,并测量到电离室冲洗后氡的反扩散现象;2由已知活度的标准源定出相对测量的刻度系数K值,K=24.62 Bq/pA,对同一个监测源以半年为周期进行多次测量后得出稳定性符合要求;3通过测量电离电流和气压的关系曲线以及不同气压下的饱和曲线,确定了常规的工作条件;4测量了盐酸清洗电离室内表面降低本底的效果;5不确定度分析表明相对测氡的扩展不确定度(k=2)小于5%,由本底涨落得出探测下限为0.5 Bq;6理论上对壁损失修正进行了计算,实验上保持电离室工作在饱和区的情况下,测量了不同气压下电离电流的变化,从中得出了壁损失随气压变化的规律,可以看出,电离电流的实测值和计算值随气压变化规律基本一致;当气压大于125 kPa时,端效应等其它因素造成的影响不大于2%,因而在此工作条件下,测量电离电流后通过计算修正壁损失可以实现近似的绝对测氡,提出了进一步提高绝对测量准确度的方法。
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The result showed that there had little influence on the growth of Ca-enriched Sp. maxima when adding 0. 6 g/L CaCO3 and harvesting in 24 h in the end of the lag phase. It was also found that the Ca - enriched Sp. maxima had highest organic calcium content, higher total calcium content and higher ratio of organic calcium and total calcium.
研究表明,添加0.6g/L的CaCO3,在培养24 h后收获,即在延迟期的末段收获,对极大螺旋藻的生长影响较少,同时可获得有机钙质量分数最高,总钙质量分数相对较高,有机钙占总钙的比例也相对较高的富钙螺旋藻。
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The result showed, There is a wider range of yield between different triticale genotypes were bigger than that of wheat in drought field.
环境变化首先影响生长指标,而库结构指标则相对较稳定,干旱会提高二粒和三粒小穗的相对比例。
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In addition, the hypha could also invade the rice root.3、Making clear the effects of silicon on the resistance to sheath blight and rice growth.Sodium silicate was added into the nourishing in the entire growth period and short period of rice, after being inoculated with R.solani, the rice with application (the Si+ rice) of resistant cultivar 91SP and Teqing had lower (but not statistically significant) disease rating and disease index with relative control effect of 10.02% and 8.70% compared to the Si- rice plants in, but the Si+ rice plants of susceptible cultivar Lemont and Ningjing 1 had significantly lower rating and disease index with relative control effect of 27.42% and 24.29% compared to the Si- rice plants. The results indicated silicon could strengthened the resistance to rice sheath blight, specially strengthened the resistance of susceptible cultivar Lemont and Ningjing 1 remarkedly.
纹枯病菌也能侵染水稻根部。3、明确了施硅对纹枯病的抗病效应和水稻生长的影响全生育期和短期在营养液中添加硅水培水稻试验结果表明,施硅减轻了病级和病情指数,施硅对抗病品种91SP和特青的相对防治效果分别为10.02%和8.70%,而对感病品种Lemont和宁粳1号的相对防治效果达27.42%和24.29%,说明施硅增强了水稻对纹枯病的抗性,特别显著增强了感病品种Lemont和宁粳1号的抗性。
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Through comprehensive comparison,during the growth from 1 age-degree bamboo to 2 age-degree bamboo,density, mechanical strength(except maximum tensile strength etc.),fraction of bundle sheath,cell wall ratio,crystallinity,cellulose content and lignin content increase rate are the greatest.3age-degree bamboo has higher strength,strength and gravity ratio andcrystallinity are the biggest,fraction of parenchyma is small and insect-resistant.2 degree bamboo has the greatest mechanical strength,but its strength andgravity ratio is not the highest and its crystallinity is lower than 3 age-degreebamboo due to its greatest fraction of parenchyma,loss tangent value is thebiggest.Its creep character is not good and is easily eaten by moth.
通过综合比较,竹材从1度竹到2度竹生长过程中,密度、力学强度、纤维束比量、胞壁率、结晶度、纤维素含量、木质素含量等指标增加幅度是最大的。3度竹强度较高,强重比、结晶度最高,薄壁组织含量较小,相对抗虫蛀,材质最好,适合材用。4度竹结晶度下降引起强度的下降,但薄壁组织组织比量最小,相对最抗虫蛀。2度竹力学强度最大,但是强重比并不是最大,结晶度比3度竹低,由于薄壁组织组织比量最大,内耗值最大,蠕变性能较差,同时相对易遭虫蛀。
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The results showed: 1 Alfalfas grown for different lengths of time had considerable influence on photosynthetic characteristics of which the most important was stomatal conductance followed by transpiration rate and the chlorophyll relative content. 2 Diurnal variation in Pn and Tr had two peaks, and an obvious midday depression. 3 The net photosynthetic rate was significantly positively correlated with photosynthetic radiation, stomatal conductance, the relative chlorophyll content, and transpiration rate. The net photosynthetic rate was significantly negatively correlated with intercellular CO2 concentration.
结果表明,1生长年限对苜蓿光合特性有较大的影响,对气孔导度的影响最大,其次是蒸腾速率和叶绿素相对含量。2苜蓿叶片净光合速率、蒸腾速率日变化均呈现&双峰&曲线,有明显的光合&午休&现象。3净光合速率与光合有效辐射、气孔导度、叶绿素相对含量呈极显著正相关,与蒸腾速率呈显著正相关,与田间CO2浓度呈极显著负相关。
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And the discussion focuses on the following: 1 Comparison in the basic conditions for implementation of the enculturation of the Uygur"family"of the Urumqi SOS and the rural Uygur families of Zanggui Town, Pichan; 2 Comparison in the structures of the two types of families in the two sites; 3 Comparison in the specific implementation of the enculturation of the two types of the families; It is found by the comparisons that there has lacked a natural link between the SOS institutional cultures and the culture of the children due to the restrictions of the institutional factors on the SOS"family".
通过以上比较,我们看出由于SOS儿童村中不同民族儿童的家庭教育被同一种制度所限制,原生长地文化与现有的制度文化之间几乎没有过渡;乌鲁木齐SOS儿童村的儿童从相对封闭的地理环境中比较开放的濡化教育进入到了相对开放的地理环境中比较封闭的濡化教育。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。