Kameli A, Lösel D M
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK.
New Phytol. 1996 Jan;132(1):57-62. doi: 10.1111/j.1469-8137.1996.tb04508.x.
The effect of water stress on growth of Trillium durum L. was investigated in relation to sugar accumulation and water status of wheat plants before, during and after a period of water stress. The slight decrease in water potential in the first few days after withholding water had no detectable effect on growth. Inhibition of growth was only apparent when the water content started to decline. Dry weight continued to increase during water stress, even under severe stress (after day 27) which was associated with n sharp rise in sugar content, accounting for 20% of the gain in dry matter between days 27 and 31. The increase in leaf length and leaf area of stressed plants fallowing re-watering, from day 31, was owing to the leaves regaining turbidity after witting. Growth inhibition coincided with a considerable increase in sugar content. The role of growth inhibition and other factors in sugar accumulation under water stress is discussed, Photosynthesis rather than reserve starch might be the major source of sugar accumulated under water stress in durum wheat.
研究了水分胁迫对硬粒小麦生长的影响，并将其与水分胁迫前后及胁迫期间小麦植株的糖分积累和水分状况联系起来。停水后的头几天，水势略有下降，但对生长没有可检测到的影响。只有当含水量开始下降时，生长抑制才明显显现。在水分胁迫期间，即使在严重胁迫下（第27天后），干重仍继续增加，这与糖分含量的急剧上升有关，在第27天至31天期间，糖分占干物质增加量的20%。从第
