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An investigation of some physiological effects of freezing and flooding on winter barley (Hordeum vulgare L.)Hetherington, P. R. January 1986 (has links)
Some physiological effects of freezing and flooding were studied on winter barley (Hordeum vulgare L.). The effects of freezing on plants grown under field conditions were determined by comparing plants exposed to naturally-occurring freezing temperatures with plants protected from such temperatures by thermostatically-controlled soil heating cables. The results from field trials in 1982/83 and 1983/84 showed the effects of freezing to include: (i) A reduction in the establishment of late-sown plants due to soil heaving. (ii) A retardation of plant and apical development. (iii) Occasional transient reductions in above ground dry matter and leaf area. (iv) Variable effects upon certain yield components. Attributes not greatly affected by such temperatures included cold hardiness and yield on a per plant basis. Controlled environment studies showed that non-lethal freezing temperatures ranging from -4 to -10oC significantly reduced shoot photosynthesis and dark respiration, the greater reductions being in photosynthesis. Factors involved in these reductions include damage to leaves and roots, neither of which were critical for plant survival. When a conductivity method was used to estimate the damage to different plant parts resulting from extracellular freezing, leaf laminae were found to be more freezing tolerant than roots, and young laminae were more tolerant than older laminae. Some effects of flooding were also studied using controlled environments, and cultivar differences in flooding tolerance were found. This tolerance was investigated by comparing the response to flooding of a tolerant cultivar (Athene) with a sensitive one (Maris Otter). Flooding sensitivity was shown as wilting in the leaves of Maris Otter, the onset of wilting being associated with the leakage of electrolytes and accumulation of ethanol in the leaf laminae. The results of exogenous application of ethanol to leaves, suggest the basis of this `tolerance' is ethanol exclusion. The production of aerenchyma was not associated with flooding tolerance.
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Dominance and reproduction in farmed red deerGoodwin, Nigel January 2000 (has links)
No description available.
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Tspyl2 is involved in cellular stress response and neuronal developmentTao, Kin-pong., 涂健邦. January 2010 (has links)
published_or_final_version / Paediatrics and Adolescent Medicine / Doctoral / Doctor of Philosophy
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The effects of stress on different stages of memoryBeckner, Victoria Lemle, 1966- 28 August 2008 (has links)
Not available / text
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Expectant fatherhood status, stress and healthAu, Tat-kuen, Gerald January 1989 (has links)
published_or_final_version / abstract / toc / Clinical Psychology / Master / Master of Social Sciences
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Heart rate response to real and imagined stress.Lyman, Roger Charles. January 1970 (has links)
No description available.
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Effects of acute aerobic exercise on cardiovascular reactivity to stress in healthy, untrained males /Hemesath, Susan M., January 1990 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1990. / Vita. Abstract. Includes bibliographical references (leaves 75-83). Also available via the Internet.
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Water stress and growth and development in radish /Joyce, Daryl C. January 1980 (has links) (PDF)
Thesis (M.Ag.Sc.) - Dept. of Plant Physiology, University of Adelaide, 1983. / Typescript (photocopy).
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Moderating effect of a single aerobic exercise session on the cardiovascular response to a stressful procedure 45 minutes later /Lewis, Allan, January 1994 (has links)
Thesis (M.S. Ed.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 125-134). Also available via the Internet.
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Long-term effects of neonatal pain on adulthood stress behavior and neuroendocrinologyVora, Aditya. January 2008 (has links)
Thesis (B.A.)--Haverford College, Dept. of Psychology, 2008. / Includes bibliographical references.
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