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生长速率

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The activities of carboxylesterase、glutathion-S-transferase and acetylcholinesterase per insect increase greatly and the properities of esterase and acetylcholinesterase change also throughout larval development from 1-day-old to 4th instar. The affinity for Asch and the sensitivity to insecticide of acetylcholinesterase in 3rd instar larvae are significantly lower than that in 4-day-old larvae.

幼虫从1日龄生长到4龄时,单头幼虫的羧酸酯酶、谷胱甘肽转移酶、乙酰胆碱酯酶活力急剧增长,4龄幼虫相对于1日龄幼虫,HJ-R、HD-S上述3种酶系的活力分别增长了148、172.6、65.6倍和203、60.9、77.4倍;生长过程中,全酯酶、乙酰胆碱酯酶的性质也发生变异,特别是从4日龄生长到3龄时,乙酰胆碱酯酶的米氏常数、双分子速率常数均发生明显的改变,3龄幼虫乙酰胆碱酯酶对底物的亲和力以及对杀虫剂的敏感性显著低于4日龄幼虫。

The results showed that different Catalpa spp. had significant variance in height, diameter, length to width of leaf, leaf numbers per plant and net photosynthesis rate.

结果表明:不同品种楸树幼树的高生长、直径生长、叶片长宽比、单株叶片数和净光合速率等生长和生理指标存在显著差异。

The result showed that net photosynthetic rate in leaves of sunny positions for Populus euphratica Oliv appeared in curvilinear changes with double peaks and apparent middy depression diurnally,however,the leaves of shade positions appeared in curvilinear changes with single peaks.

结果表明:在生长季胡杨阳叶光合速率的日变化呈现双峰曲线,具有明显的光合"午休"现象,但胡杨阴叶光合速率的日变化呈单峰曲线。

Nicrate nitrogen and phosphate in liquid medium were quickly consumed at the lag phase of the growth, the consumption rate was 16.71 μ g/ml d and 1.67μ g/m d, respectively; but during the rapid-growth phase, its consumption rate was decreased.

在毛状根生长迟滞期内,培养基中的硝态氮和磷酸盐的消耗较快,其消耗速率分别为16.71 μg/ml·d和1.67μg/ml·d;但在快速生长期,其消耗速率反而减慢。

Under field conditions, the effect of spraying NaHSO3 on photosynthesis rate, photorespiration rate and nitrogen metabolism of wheat at reproductive stage were studied.

在盆栽条件下,研究喷施亚硫酸氢钠(NaHSO3)对小麦生殖生长时期光合速率、光呼吸速率及氮素代谢的影响。

In addition, net photosynthetic rate, transpiration rate and stomatal resistance are affected by various environmental factors.

叶片的净光合速率、蒸腾速率及气孔阻力在整个生长季受到多个环境因子的共同影响。

Result] The extracted liquid from D. stramonium could decrease the germination rates of 4 vegetables and the seed germination of tomato and pepper. After treatment by 0.2, 0.4 g/ml extracted liquid , the seed germination of tomato and pepper were decreased by 10.2%, 9.4% and 46.7%, 34.7% than that of CK resp. The extracted liquid at 0.2 g/ml could inhibit the growth of vegetable root, but had some promotion on growth of vegetable stem. The extracted liquid at 0.4 g/ml had the strong inhibition on the growth of vegetable root, but its inhibition on growth of vegetable stem was greatly variable in different species.

结果]曼陀罗浸提液可降低4种蔬菜种子的发芽速率,降低番茄和辣椒种子的发芽率;0.2、0.4 g/ml曼陀罗浸提液处理后,番茄和辣椒种子的发芽率分别比对照降低了10.2%、9.4%和46.7%、34.7%。0.2 g/ml曼陀罗浸提液抑制蔬菜根的生长,而对茎的生长却表现出促进作用;0.4 g/ml曼陀罗浸提液对蔬菜根的生长有很强的抑制作用,对茎段生长的抑制作用因物种不同而有很大差异。

The study of the photosynthetic and growth indices versus stress intensities shows that Caryopteris mongholica Bunge strengthens its adaptation to water stress with the reduction of net photosynthetic rate, transpiration rate and Maximum quantum efficiency of PSⅡphotochemistry, and the weakening of biomass accumulation and growth rate that are accompanied with a better water use efficiency and an increased Root/Shoot Ratio, and that the provenance of Inner Mongolia TUZUOQI is of the best physiological indices in water deficit.

通过测定不同水分梯度、不同种源的光合生理与生长指标表明:蒙古莸通过降低光合效率、蒸腾速率和最大光化学效率,减缓生长和生物量积累,提高水分利用效率和根冠比来适应水分胁迫。在水分胁迫下,蒙古莸光合能力的下降是引起其生长减缓的重要原因。从蒙古莸光合能力与生长综合考虑,内蒙古土默特左旗种源是在水分胁迫下表现最优良的种源。

The batch seeded isothermal desupersaturation experiments of SPM in aqueous solution were carried out and the overall crystal growth kinetics parameters were determined by the nonlinear optimization techniques. Assuming that the volume diffusion rate at growth is equal to the mass transfer rate at dissolution under the same conditions, the two-step crystal growth rate parameters can be determined. At the fow supersaturation, the surface integration rate is proportional to relative surface supersaturation.

通过测量螺旋霉素均相成核动力学,获得了表面能的值,估算出表面熵因子的值在1.41~1.56之间,从而可以推断出螺旋霉素晶体生长的表面反应速率同表面相对过饱和度成线性关系,这种生长机理同第四章得到的结果是相吻合的;利用估算的表面熵因子的值,把螺旋霉素晶体看作为简单的立方科瑟尔晶体,根据能量最低原理,对螺旋霉素的晶体生长进行了模拟。

It indicates:The soiless foliage plants grow well and the rate net photosynthesis is fairly high,However,it will change with time changing,The rate of net photosynthesis ofFatsia japonicachanges less than that ofRohdea japonicaand pachira macrocarpa,and the changes of thepachira macrocarpais the largest.

对无土栽培观叶植物的光合速率及环境因子动态变化的初步研究,结果表明,无土栽培观叶植物生长良好,光合速率较高,随时间变化,八角金盘光合速率变化较小,其次为万年青,最后为发财树。

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推荐网络例句

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。