1) lethal temperature(LT50)
半致死温度(LT50)
2) semilethal temperature
半致死温度
1.
The adaptation of Rhododendron Fortunei s semilethal temperature to natural temperature falling;
云锦杜鹃低温半致死温度对自然降温的适应
2.
The semilethal temperature of C.
用双荚槐和伞房决明的1年生枝条为试材,通过低温处理,用电导法测定它们的相对电导率,并用Logistic方程拟合求拐点值来估计其半致死温度,探讨它们的抗寒性。
3.
25 different cucumber inbred lines resisting low temperature were taken as materials in this research,compared morphological standards,comparative in normal temperature and semilethal temperature in seedlings.
对25个耐低温性不同的黄瓜自交系进行低温处理,试验通过对幼苗在低温下各形态学指标与常温相对百分率及半致死温度的分析,对各自交系进行了耐低温性的初步鉴定结果表明:9503,9504,9507,9513,9524,9525共6个自交系属于高抗材料;9501,9502,9505,9508,9509,9511,9512,9514,9515,9516,9518,9520,9522,9523共14个自交系属于中抗材料;9506,9510,9517,9519,9521共5个自交系属于低温敏感材料。
3) LT50
半致死温度
1.
By using experimental ecological methods,the 24 hours semi-lethal temperature(24 h LT50) of typical copepods living in the coastal area of East China Sea was determined to elucidate the effects of thermal discharge from power station on the coastal ecosystem.
为了探明热排放对近海生态的影响,选用我国东海近海主要桡足类,采用热升温实验方法对其半致死温度进行研究。
2.
The results showed that: there were differences among different germplasm, the LT50 was between -9.
结果表明:果梅种质资源的枝条抗寒性存在着很大的差异,经12h低温处理,其枝条的半致死温度为-9。
3.
The G6PDH activity in the absence or the presence of reduced dithiothreitol (DTTred) were determined, and the changes in superoxide dismutase (SOD), peroxides (POD) and cytosolic G6PDH activities, malondial-dehyde (MDA) content as well as freezing resistance (expressed as LT50) of.
对-20℃低温锻炼及脱锻炼过程中甜杨 (Populus suaveolens)幼苗的G6PDH、SOD和POD 活性、MDA含量和半致死温度(LT50)进行了测 定和分析。
4) Semi-lethal temperature
半致死温度
1.
Five provenances of Zenia insignis were used as materials to observe their leaf structural features by epidermal and paraffin slice methods, measure leaf semi-lethal temperature by electric conductivity, and measure leaf supercool point temperature by differential scanning calorimetry.
以5个种源的翅荚木叶为材料,采用叶片离析法和石蜡制片技术观测叶片结构特征、电导率法测定其半致死温度、差示热量扫描仪测定其过冷点温度,并结合田间试验分析不同种源翅荚木苗期的抗寒性及其与叶片结构的关系。
2.
Meanwhile the semi-lethal temperature of these tree species were evaluated from Logistic equation to indicate their cold resistance.
以不同年龄的5个木兰科和1个冬青科常绿阔叶乔木树种为试材,模拟自然低温胁迫处理,测定其相对电导率,并通过拟合的Logistic方程求其拐点值来估计树种的半致死温度,探讨其抗寒性大小。
3.
The result showed that the relative moisture,free moisture and starch contents of leaf decreased,and the bound moisture,soluble sugar,soluble protein and proline contents increased with a drop in low semi-lethal temperature.
以云锦杜鹃为材料,研究了其叶片低温半致死温度与水分和渗透调节物随气温下降的变化。
5) LT_(50)
半致死温度
1.
The results were as follows,1) The (LT_(50)) of centipedegrass accessions ranged from -4.
采用电解质渗透法,对有代表性的38份中国假俭草及2份美国假俭草种源(品种)的抗寒性进行了初步研究,得出如下结果,1)中国假俭草种源半致死温度(LT50)的变化范围为-4。
6) median lethal time(LT50)
致死中时(LT50)
补充资料：LT
分子式：LiTaO3
CAS号：
性质：无色或淡黄色晶体。三方晶系，畸变钙钛矿型结构，点群C63vR3C。密度7.45g/cm3。莫氏硬度5.5～6.0。折射率nD=2.176。介电常数41～53。一次电光系数r12=7.0×10-12m/V，机电耦合系数R15≥0.3。为铁电晶体，居里点(665±5)℃，自发极化强度50×10-6C/cm2。具有优良的电光、压、电、热释电性能。采用提拉法生长。激光技术中用作调Q开关，红外技术中用作热释电探测器，电子工业中用以制作滤波器和谐振器。
CAS号：
性质：无色或淡黄色晶体。三方晶系，畸变钙钛矿型结构，点群C63vR3C。密度7.45g/cm3。莫氏硬度5.5～6.0。折射率nD=2.176。介电常数41～53。一次电光系数r12=7.0×10-12m/V，机电耦合系数R15≥0.3。为铁电晶体，居里点(665±5)℃，自发极化强度50×10-6C/cm2。具有优良的电光、压、电、热释电性能。采用提拉法生长。激光技术中用作调Q开关，红外技术中用作热释电探测器，电子工业中用以制作滤波器和谐振器。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条