查询词典 yield

Lack of significant growth in the world average yield in upland cotton since 1991 reinforces the impression that the cotton industry has entered into a long梩erm period of slow growth in production. Breeding contribution to the yield growth has sharply decreased, and the result of cotton cultivar performance of regional test displayed that the potentials for the growth of yield in new developed cultivars was delimited, which implies that we must pay more attention to the studies on the diversity of cotton cultivers and genetic mechanism for yield traits.

自90年代初以来，英国及世界的棉花平均产量没有明显得到提高而育种方面对产量的贡献已大大降低；我国的棉花品种区域试验结果也表明，常规品种的增产幅度较低，需要深入研究棉花品种的遗传多样性和产量性状的遗传规律。

Harvested area error of yield point is one of the main reasons to bring yield error in yield data collected by yield monitoring system.

采样周期内实际收割面积计算误差造成的产量数据误差是联合收割机计产数据中的一种常见误差。

The overall yield was 43.6%.The yield of reduce of ester was increased nearly one times than the past method because of KBH4-LiCl as the reducing agent instead of NaBH4. Changing the reaction conditions of bromization, the one-way yield enhanced 30%. The yield of reduce of the bromide was added by one times by improving the process. Tefluthrin was achieved by the catalytic esterification of DCC and DMAP.

优化后工艺对四氟对苯二甲酯的还原采用了廉价高效的还原试剂KBH4-LiCl，使收率比NaBH4法提高了近一倍；对溴化反应条件进行了优化，单程收率提高了30%；对溴化物还原条件的优化，使其收率提高了近一倍；采用了催化剂DCC和DMAP合成了最终产品七氟菊酯。

The choiceness varieties of Canarium album were tested in three different places of Guangdong. The study researched the 3-4a trials after engrafting, the results were as follows:(1) The results of variance anaylsis indicated that there were highly significant differences in yield per plant and yield per crown projection area among clones, and the height, stem diameter and crown side were highly significant in some test sites. It showed that genetic diversity existed in yield per plant among clones, and selecting high yield clones were effective.

在高州市大坡镇、古丁镇以及茂名市八一林场三个试点开展橄榄优良品系扩大试验，嫁接后第3年及4年的结实及生长结果如下：（1）方差分析结果，无性系间单株产果量、单位树冠投影面积产果量均达极显著差异水平，树高、径粗和冠幅在有的试点达极显著差异、有的试点无显著差异，表明无性系间结实存在着真实的遗传差异，通过无性系测定选择的高产无性系有效。

Research the effect of different watering period and the number on the yield and quality of glutenous wheat, the results showed: Watering times and period is directly related to the wheat yield and quality ,with the decrease of watering times, yield showed a downward trend, watering 5 times in Whole growth period, wheat yield is highest (7593.0kg/hm2), and it is lowest(7353.0 kg/hm2) with no watering in Wheat jointing period .watering 5 times in Whole growth period, Grain protein content (13.4%) and wet gluten content (33.6%) is minimum, Flour stability time is shortest (8.7 min),watering 2 times in whole growth period, protein content (16.3%) and wet gluten content (35.5%), stability time (9.6min) and so on, these comprehensive quality indicators are better.

经过不同浇水时期及浇水次数对强筋小麦产量和品质的影响研究，研究结果表明：浇水时期和浇水次数对小麦产量和品质有直接关系，随浇水次数的减少产量呈下降的趋势，全生育期浇5水产量最高7593.0kg/hm2，拔节期不浇水产量最低7353.0kg/hm2。

During studying different levels potential yield of main cropping modes, bring forward the conception of "equivalence potential yield", and this conception made potential yield of different crops comparable and transpositional. So we can analyze the main factors influencing mostly different levels potential yield of monoculture and main cropping modes for different regions.

在对种植模式生产潜力的研究过程中提出了等价生产潜力的概念，以解决不同作物间生产力的横向比较与换算问题，同时注意到单一作物与种植模式间的生产潜力影响因素，并量化分析了这些主要的影响。

The results showed: 1 RN didn't the leaf width,leaf long,leaf area,yield,productive value and average price of flue-cured tobacco,but had significant effect on grad composing,content of chemical component and the accumulation of N,K and Cl.Within limited rang of RN,the relations between yield,average price,yield of high grad tobacco,yield of low grad tobacco,nicotin,N,reducing sugar,Cl,amylum,volatile base and the quotient of ammonium would been described by significant quadratic polynomial,and the relations between K and the quotient of ammonium conformed to negative linear equation;2With a RN of 75%∶25%,the value of proportion of high and middle grad tobacco,content of nicotin,N,K,uptake of N and K/Cl were the highest,volatile base was lowest.

结果表明：1RN对烤烟的农艺性状、产量、产值、均价等没有明显影响，而对烤烟的等级结构、内在化学成分含量、氮、钾、氯的吸收量有着显著影响，可以用显著的二次多项式模型或直线相关方程描述产值、均价、上等烟产量、下等烟产量等经济性状以及烟碱、总氮、钾、还原糖、氯、淀粉、挥发碱等内在化学成分的含量与铵态氮份额之间的关系；2RN为75%∶25%时，中上等烟比例、烟碱、总氮、钾、钾氯比、氮吸收量最高，挥发碱含量最低。

However, the use of Aegliops tauschii in improvement of wheat yield trait has not been reported. In this study, T.durum-Ae.Squarrosa amphidiploids was crossed with common wheat PH85-16, then backcrossed with PH85-16. The variation characteristic of the main yield traits of BC1F1 and BC1F2 were analyzed. Then, QTLs affecting yield traits were detected by 130 SSR primer pairs of D genome in BC_1F_1 and BC_1F_2.The result showed chromosomes in D genome from Aegliops tauschii affected yield trait of wheat significantly.

本研究以二倍体小麦粗山羊草与四倍体硬粒小麦合成的双二倍体Am6为亲本，与普通小麦PH85-16 进行杂交，再用PH85-16 进行回交，对获得的回交后代进行了主要产量性状调查，利用位于小麦D 基组的SSR 分子标记进行了分子标记分析，对来自粗山羊草与产量性状相关的数量性状位点进行定位，探讨粗山羊草对小麦产量性状的影响。

The result of above three aspects indicates:(1) under these optimize conditions,the yield of nitrating reaction is 95.52%, the yield of phase transfer catalysis fluorination is 90.03%, the yield of chlorination is 87.5%,and the reaction total yield is 75.47%, which are higher than the yields reported, the purity of product is 98.5%.

上述研究结果表明：(1)在实验所得的工艺条件下，硝化收率为95.52%，相转移催化收率为90.3%，氯化收率为87.5%，反应总收率达到75.47%，产品纯度为98.5%，均高于文献所报导收率。

Furthermore, the effects of different metallic salts,nitrogen sources,carbon sources,temperature,pH,water content and fermentation time on the enzyme activity and the yield of the acid protease were studied and the results were as follows: both MnCl2 and CuSO4 could activate the protease while other metallic salts inhibited the protease on different levels; addition of 1 % bean flour and 1 % glucose could increase enzyme yield and enzyme activity by 71 % and 31 % respectively; the maximal yield of enzyme was achieved under the conditions of temperature at 40 ℃ and pH as 7.0; water content and fermentation time would also influence enzyme yield on different levels.

不同金属盐对该酶酶活及不同氮源、碳源、温度、pH、含水量以及发酵时间对菌株产酶的影响试验结果表明：MnCl2，CuSO4均对该酶有激活作用，其他金属盐类对该酶有不同程度的抑制作用；添加黄豆粉（1 %）和葡萄糖（1 %）可使菌株产酶酶活分别提高71 %和31 %；培养温度为40 ℃以及培养基起始pH为7.0时产酶最高；含水量和发酵时间对产酶也有不同程度的影响。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。