Tropical Research and Education Center, University of Florida, IFAS, Homestead, Florida 33031.
Plant Physiol. 1986 May;81(1):26-9. doi: 10.1104/pp.81.1.26.
Experiments were conducted with containerized ;Tahiti' lime (Citrus latifolia Tan.) trees in order to define conditions needed to induce flowering. Cyclical or continuous water stress for 4 to 5 weeks induced flowering. Moderate (-2.25 megapascals, midday) or severe (-3.5 megapascals, midday) water stress as measured by leaf xylem pressure potential, for as little as 2 weeks induced flowering, but the response was more significant in severely stressed trees. Low temperature (18 degrees C day/10 degrees C night) induced a time dependent flowering response much like that of moderate water stress. Significantly negative leaf xylem pressure potentials as compared to controls were found only under water stress treatment, suggesting that a common stress-linked event, separate from low plant water potential is involved in floral induction. Leafless, immature cuttings from mature, field-grown trees were induced to flower by water stress treatment, suggesting that leaves are not essential for a flower inductive response.
进行了集装箱 '塔希提' 莱蒙（Citrus latifolia Tan.）树的实验，以确定诱导开花所需的条件。周期性或连续 4 至 5 周的水分胁迫会诱导开花。中度（-2.25 兆帕斯卡，中午）或严重（-3.5 兆帕斯卡，中午）的水分胁迫（通过叶片木质部压力势测量），即使只有 2 周，也会诱导开花，但在严重受胁迫的树木中，反应更为显著。低温（18 摄氏度/10 摄氏度，白天/夜晚）诱导出与中度水分胁迫相似的时间依赖性开花反应。与对照相比，只有在水分胁迫处理下才发现叶片木质部压力势明显为负，这表明与低植物水分势相关的共同胁迫相关事件参与了花诱导。来自成熟、田间生长的树木的无叶、未成熟的插条通过水分胁迫处理诱导开花，这表明叶片对于花诱导反应不是必需的。
