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Both in green house and in the open field ,relative content and total content of characteristic aroma components:of butanoic acid, methyl ester; butanoic acid, ethyl ester; hexanoic acid, methyl ester; hexanoic acid, ethyl ester; DMHF; DMMF trended to increase and then decline with the increment of nitrogen fertilizer, and the highest was the Mid-N fertilizer treatment. So favorable nitrogen application can promote the process of fruit aroma, that is , feasible fertilizer application could enhance fruit flavor.

在温室和露地两种栽培条件下,除成熟草莓果实的特征香气成分丁酸甲酯、丁酸乙酯、己酸甲酯、己酸乙酯、DMHF、DMMF的相对含量和总量均是随施氮量增加先增加后减少,中量氮肥处理最高,合理的施氮量有利于果实香气的形成,即适宜的施肥量有利于增进果实风味。3。

The results showed that the grain yield of winter wheat with two-irrigation was higher than that with one-irrigation with the same nitrogen application rate and method. Compared to one-irrigation,the grain number per spike in two-irrigation was higher,the 1000-grain weight was lower, the water wastage was higher, but the WUE was lower. The yield was not affected significantly by nitrogen rates and the methods. Within the nitrogen rate of 157.5-295.5kg/hm2, the lower NUPE and Nitrogen Productivity declined with nitrogen rate increasing. NHI was not lower than the others at the lowest nitrogen rate of 157.5kg/hm2. The accumulation of NO3--N in soil was significantly and positively correlated with the nitrogen application rate. NO3--N in one-irrigation was distributed mainly in the top layer (0-80cm), but it was inverse in two-irrigation.

结果表明,施氮量和施氮方式相同时春浇二水冬小麦的产量高于春浇一水,二水穗粒数较一水高,千粒重则低于一水,一水耗水量较少,水分利用效率明显高于二水;同一水分下不同施肥量及施肥方式对产量的影响差异不显著,同一施肥方式下在157.5-295.5kg/hm2范围内,施肥量越大,氮素生理效率和氮肥生产力越低,施氮157.5kg/hm2时,氮收获指数均处在最高或较高水平;土壤硝态氮残留量与施氮量呈显著正相关,成熟期一水条件下土壤中硝态氮主要集中在上层(0~80cm),二水条件下则主要分布在中下层。

The carbon storage in different organs was positively related to the biomass of corresponding organs. Stem accumulated the highest carbon storage, comprised 52.20% of carbon storage in overstory trees, the rest in branch, leaf, bark and root, etc., seized 47.80%. The annual net productivity of 7-year-old A. crossicarpa plantation was 20.06 t/(hm^2a) and annual carbon fixation was up to 9.86t/(hm^2a).

厚荚相思各器官碳贮量与其生物量成正比例关系,树干的碳贮量最高,占乔木层碳贮量的52.20%,树枝、树叶、树皮和树根等碳贮量共占乔木层的47.80%。7年生厚荚相思人工林乔木层年净生产力为20.06t/(hm^2a),碳素年净固定量为9.86t/(hm^2a)。

The degradation of PAHs at 0.03, 0.3, and 3 mg/g soil, either added singly or as mixtures, were evaluated for their evolved CO2 in Biometer flasks. The contaminated soil was later Soxhlet extracted with hexane. The extracts were evaporated, redissolved in dimethyl sulfoxide, and subjected for Microtox assay and Medaka embryo toxicity test. The evolved CO2 from singly PAHs addition was correlated with concentration gradient.

根据结果显示,受单一PAHs污染土壤之降解量,以CO2累积量表示,两环之Naphthalene其降解量为最多,在低浓度0.03 mg PAHs/g soil时,有所谓的诱引作用产生;受混合PAHs污染土壤之降解量,以Naphthalene对於Phenanthrene的刺激作用为最大;在复育实验方面,以添加苯酸之CO2累积量为最高,单就界面活性剂而言,则以Tween 80的表现为最佳。

The cells in the cambial layer of the periostlum showed low or negative signal in the immediate injury response period. The osteoblasts differentiated from the periosteum cells stained strongly in the intramembranous ossification period, and the differentiated chondrocytes stained most strongly in the chondrogenesis period.

结果 在急性损伤反应期,血肿延伸范围内的骨膜内层细胞有少量表达;在膜内成骨期,成骨细胞表达量较高,骨膜细胞表达量少;在软骨形成期,成熟软骨细胞表达量最高;在软骨内成骨期,肥大软骨细胞不表达,成骨细胞表达量较高。

Leaves. Result: Extraction temperature had effect on total flavonoids yield, and ethanol concentration had more obvious effect than extraction temperature. The more natural storage time, the less total flavonoids content, and the average descent rate was 24.74% per year. The flavonoids content from Lithocarpus polystachyus Rehd. gathered between August and October was the highest. The total flavonoids content was higher in the new leaves of Lithocarpus polystachyus Rehd.

结果:乙醇体积分数对总黄酮提取量有显著影响,提取温度对总黄酮提取量有影响;多穗柯自然存放时间越长,总黄酮含量越低,平均每年下降24.74%;不同季节采摘的多穗柯其总黄酮含量以8~10月最高;经对怀化多穗柯嫩叶和老叶中总黄酮的提取测定表明,多穗柯中嫩叶总黄酮含量最高,二年生最低。

The results indicated as pH values in the range from 4.50 to 7.50, the volume and dry weight of root increased as pH values increased, as well as AAAR,TAAR. The relationship of nicotine and total nitrogen accumulation with pH values was parabola,the functions were Y=-61.429X2+391.17X-162.8 (F=l 8.45), Y=-24.3X2+154.88X+52.7 (F=14.40**) respectively. When pH value got rise to 7.50, the accumulation of nicotine and total nitrogen attained the highest .

主要研究结果如下: 1 不同pH值(4.50、5.50、6.50、7.50、8.50)对烤烟根系发育、根系吸收面积以及对烟叶烟碱、总氮、蛋白质和多酚物质积累影响的研究结果表明pH值在4.50~7.50范围内,根系体积和干重都随着pH值上升而增加,AAAR、TAAR也随着升高,烟叶中烟碱、总氮累积量随着pH值上升而增加,烟碱和总氮累积量与pH之间呈抛物线关系,关系式分别为Y=-61.429X~2+391.17X-162.8,F=18.45~;Y=-24.3X~2+154.88X+52.7,F=14.40~,pH值对烟碱和总氮累积量的影响存在极显著差异,当pH值升至7.50时,烟碱和总氮累积量达到最高值。

When feeding with undecylenic acid by flask culture, weight of PHA and PHA content were 2.148 g/L, 51.8% respectively.

锥形瓶馈加十一烯酸培养实验,於培养40小时取样可得最高菌量、最高PHA累积量分别为4.14g/L、2.148g/L,PHA含量可提升至51.8%。

The influence of long-term application of fertilizers and tillage under conditions of 12-year rice-based cropping system on soil nitrogen fertility was studied on Taihu region of the south Jiangsu Province. The results showed that total N content in the soil layer of 0~5 cm reached 2.89% in the long-term fallowed soil. The treatment of fallow in combination with plowing every crop season reduced total N content to 2%, occupying 70%of the M value.

通过十二年的耕作和施肥长期定位试验研究表明,苏南太湖稻麦轮作地区,长期休闲的农田0~5cm土层最高含氮量可达2.89%,休闲田结合每季耕翻,全氮含量下降,只及最高含氮量的70%,保持在2%左右。

Expression of FSCN1 peaked in prenatal skeletal muscle at 65 days of Landrace and 90 days of Tongcheng pigs, respectively.

在骨骼肌发育过程中,FSCN1基因在长白猪中妊娠65天时表达量最高,在通城猪中妊娠90天时表达量最高。

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