| 单词 | moisture stress |
| 释义 | > as lemmasmoisture stress moisture stress n. Botany (a) (a quantitative measure of) the overall pressure at which moisture is held in soil; the force that must be exerted by plant tissue to extract water from the soil (now rare); (b) physiological stress experienced by a plant as a result of a lack of available moisture or a low water potential in the soil (also called water stress). ΚΠ 1945 C. H. Wadleigh & A. D. Ayers in Plant Physiol. 20 114 The term ‘moisture tension’ expressed in atmospheres will be used to designate the free energy of the soil moisture involved in the pressure potential, osmotic pressure to designate that of the osmotic potential, and ‘total moisture stress’ in atmospheres (sum of osmotic pressure + moisture tension) will be used to designate the total free energy of the soil moisture as covered by the term moisture potential. 1949 P. J. Kramer Plant & Soil Water Relationships ix. 236 Quite similar reductions in growth occur in plants subjected to similar moisture stress, whether this stress is produced by growing the plants in dry soil or by growing them in salt solutions. 1974 E. J. Winter Water, Soil & Plant ix. 113 High soil moisture tension or stress (low soil water potential) caused by low soil moisture content hinders the passage of water into the plant. 1991 Forestry 64 346 Periods of drought during which the host trees have been weakened by moisture stress making them less able to withstand beetle attacks. < as lemmas |
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