Arid
DOI10.1016/S0040-6031(02)00253-8
Metabolic response to temperature for six populations of winterfat (Eurotia lanata)
Thygerson, T; Harris, JM; Smith, BN; Hansen, LD; Pendleton, RL; Booth, DT
通讯作者Smith, BN
来源期刊THERMOCHIMICA ACTA
ISSN0040-6031
出版年2002
卷号394期号:1-2页码:211-217
英文摘要

Eurotia lanata (Pursh) Moq. [Krascheninnikovia lanata (Pursh) Guldenstaedt.] (winterfat) is a boreal cold-desert subshrub, seldom more than 2 ft tall, that thrives in dry climates at cool temperatures. Diaspore collections from Saskatchewan, Wyoming, Colorado, and New Mexico were cleaned and placed on moistened filter paper in petri dishes. Seeds maintained at 0, 5, 10, 15, and 20degreesC for seven days germinated at all temperatures with no evidence of acclimation. At radicle emergence (ca. 3 mm), seeds were placed in calorimeter ampoules. Heat rate (R-q) was measured at a given temperature, then a vial containing NaOH solution was added to measure the rate of CO2 evolution (R-CO2) for the same tissue at the same temperature. This procedure was repeated for each of the populations at temperatures ranging from 0 to 25degreesC. Metabolic efficiency and predicted specific growth rates were calculated from these measurements. Optimum temperature for germination, metabolism, and early seedling growth ranged from 5 to 25degreesC. Seedlings differed in response to temperature reflecting the climate at the site of origin. Published by Elsevier Science B.V.


英文关键词germination metabolism respiration rate temperature winterfat
类型Article ; Proceedings Paper
语种英语
国家USA
收录类别CPCI-S ; SCI-E
WOS记录号WOS:000178635200027
WOS关键词IMBIBITION TEMPERATURE ; COLD-HARDINESS ; RESPIRATION
WOS类目Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical
WOS研究方向Thermodynamics ; Chemistry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/143847
作者单位(1)Brigham Young Univ, Dept Bot & Range Sci, Provo, UT 84602 USA;(2)Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA;(3)Rocky Mt Res Stn, Forestry Sci Lab, Albuquerque, NM USA;(4)ARS, USDA, High Plains Grassland Res Stn, Cheyenne, WY 82009 USA
推荐引用方式
GB/T 7714
Thygerson, T,Harris, JM,Smith, BN,et al. Metabolic response to temperature for six populations of winterfat (Eurotia lanata)[J],2002,394(1-2):211-217.
APA Thygerson, T,Harris, JM,Smith, BN,Hansen, LD,Pendleton, RL,&Booth, DT.(2002).Metabolic response to temperature for six populations of winterfat (Eurotia lanata).THERMOCHIMICA ACTA,394(1-2),211-217.
MLA Thygerson, T,et al."Metabolic response to temperature for six populations of winterfat (Eurotia lanata)".THERMOCHIMICA ACTA 394.1-2(2002):211-217.
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