查询词典 irradiance

The statistical characteristic of irradiance fluctuation and atmospheric refractive-index structure constant are analyzed.

实验中对光强起伏和到达角起伏进行了同步测量，分析了接收光强起伏的统计特性以及传输路径上大气折射率结构常数的特性。

Chlorophyll fluorescence analysis technique and HPLC system were used to investigate changes of thermal dissipation through xanthophyll cycle under high irradiance and xanthophyll cycle components in streptomycin treated maize leaves.

利用叶绿素荧光分析技术和高效液相色谱研究了链霉素(SM ，叶绿体基因编码蛋白的抑制剂)处理玉米叶片的叶黄素循环及依赖叶黄素循环的热耗散。

Anthocyanidin extract in methanol showed 3 absorption peaks, at 270, 340 and 520 nm, in the UV-vis spectrum, with bathochromic and hypsochromic shift with methanol+AlCl3 and methanol+AlCl3+HCl, respectively; the ratio of the absorbance at 440 nm to that at 520 nm was 0.29. No fluorescence occurred under UV irradiance, and 5 absorption peaks occurred at 270 nm after HPLC. Five molecular ion peaks occurred on MS: 595, 381, 611, 587 and 571, respectively, and monosaccharides in the extract were identified as rhamuose and glucose on HPLC.

一品红花色素的甲醇溶液分别在270、340 和520 nm 处有 3 个吸收峰；在 440 nm 吸光度与可见光最大吸收波长 520 nm 吸光度的比值为0.29；花色素的甲醇溶液中加入AlCl3后发生红移，再加入HCl后发生蓝移；色素溶液在紫外光下无荧光；色素样品经液相色谱分离后在 270 nm检测有 5 个比较明显的吸收峰；质谱中得到 595、611、381、571 和 589 等对应的分子离子峰；花色素酸解液高效液相色谱图谱和鼠李糖、葡萄糖的出峰时间一致。

Ciliata var. pubescens had the higher utilization efficiency on weak light. The results suggested that the control of soil water content and irradiance might help to promote the growth of T. ciliata var. pubescens.

在遮荫条件下，毛红椿苗木通过增大叶面积、提高叶绿素含量有效地利用较弱的光辐射，形成适应遮荫条件的生态生存对策。

Light is the most important resource condition influencing the growth and survival of Dipterocarpaceae seedlings and the higher irradiance in canopy gaps is benefitial to seedling growth and survival.

光照是影响龙脑香科植物幼苗生长和存活的最重要的资源条件，林窗中的较强光照有利于幼苗的生长与存活。

The effects of low irradiance on chlorophyll a fluorescence kinetics were studied in two eggplant Solanum melongena L.

根据快速叶绿素荧光诱导动力学原理，选用耐弱光茄子品种99-8和不耐弱光茄子品种黑又亮作试材，进行遮光（光照强度相当于自然光照的40%）15 d、未遮光15 d、遮光30 d和未遮光30 d 4个处理，用JIP-测定法对不同耐弱光性品种在不同光照条件下的叶绿素荧光特性进行研究。

Cells grown at different CO2 levels showed differed characteristics of photoinhibition when exposed to high irradiance.

不同CO_2浓度下培养的藻细胞，在强光（1000～2000μmol m~(-2) s~(-1)）下表现出不同的光抑制特性。

Kuiper D%Smid A Genetic differentiation and phenotypic in Plantago major ssp major I The effect of differences in level of irradiance on growth,photosynthesis,respiration and chlorophyll content Physiology Plant , 1985,null

赵世杰%刘华山%董新纯植物生理学实验指导北京：中国农业科技出版社， 1998，李新举%张志国%李贻学土壤深度对还田秸秆腐解速度的影响 10.3321/j.issn：0564-3929.2001.01.020 土壤学报， 2001，(01)束怀瑞果树栽培生理学北京：中国农业出版社， 1993，null

Or heat-pipe evacuated collector tubes with a flat absorber and a semicylindric absorber , relative solar irradiance changing with incident angles on various points of absorber s have been measured respectively by using a solar simulator.

以太阳模拟器为光源，对平面吸热板和半圆柱吸热板热管式真空集热管测定了玻璃罩管内吸热板表面各点随光线入射角变化的相对太阳辐照强度分布，给出了平面与半圆柱吸热板平均相对太阳辐照强度随人射角变化的规律及三维拟合公式，并对两种情况的实验结果进行了初步分析。

Spirodela polyrhiza were grown under UV-B radiation at the irradiance of 2.8 W/m2 from 9:00-15:00 every day, and control duckweeds were placed in the natural light in the laboratory.

本文研究了紫萍在形态结构和生理生化方面对UV-B辐射的响应。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。