| The effect of vapor pressure deficit on leaf area and water transport in flower stems of soil-less culture rose | |
| Liu, F; Cohen, Y; Fuchs, M; Plaut, Z; Grava, A | |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 2006-03-10 | |
| 卷号 | 81期号:1-2页码:216-224 |
| 关键词 | leaf area sap flow VPD Rosa X hybrida |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/j.agwat.2005.03.005 |
| 通讯作者 | Liu, F(liufamin@hotmail.com) |
| 英文摘要 | The effect of indoor air relative humidity on leaf area and water transport of flower stems in a greenhouse rose crop (Rosa X hybrida cv Mercedes) grown on a soil-less substrate was studied on 2-year-old plants, in a freely draining irrigated system ensuring a high leaching fraction. In one compartment of the greenhouse, the roof opened when the air temperature reached 28 degrees C. In the other, an evaporative wet pad and fans were operated at 28 degrees C. The wet pad treatment decreased vapor pressure deficit (VPD). A maximum VPD difference of 1.45 kPa between the two compartments occurred during the noon-hours on a warm day with high atmospheric evaporative demand. On days with moderate evaporative demand, the wet pad was either not operated or when operated, produced VPD differences smaller than 1.45 kPa. Wet pad treatment decreased the transpiration rate per unit leaf area of the flower stem. On a typical summer day, with high evaporative demand, mean maximum water loss per unit leaf area was 2.63 +/- 0.13 and 1.79 +/- 0.09 kg m(-2) day(-1) for the high and low VPD compartments, respectively. However, low VPD decreased only slightly mean daily water flow per stem: 104.3 +/- 6.9 g at low VPD versus 112.4 +/- 8.7 g at high VPD (not significant at p > 0.05), despite the significant differences (p > 0.05) in VPD between the greenhouse compartments. The wet pad treatment mitigated leaf water potential drop at noon-time. The results suggest that rose flower stems adapt to high VPD by decreasing leaf area for maintaining high sap flow rate per unit area. (c) 2005 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | TRANSPIRATION ; GREENHOUSES ; CANOPY |
| WOS研究方向 | Agriculture ; Water Resources |
| WOS类目 | Agronomy ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000235861100014 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2555754 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Liu, F |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Agr Res Org, Inst Soil Water & Environm Sci, IL-50250 Bet Dagan, Israel |
| 推荐引用方式 GB/T 7714 | Liu, F,Cohen, Y,Fuchs, M,et al. The effect of vapor pressure deficit on leaf area and water transport in flower stems of soil-less culture rose[J]. AGRICULTURAL WATER MANAGEMENT,2006,81(1-2):216-224. |
| APA | Liu, F,Cohen, Y,Fuchs, M,Plaut, Z,&Grava, A.(2006).The effect of vapor pressure deficit on leaf area and water transport in flower stems of soil-less culture rose.AGRICULTURAL WATER MANAGEMENT,81(1-2),216-224. |
| MLA | Liu, F,et al."The effect of vapor pressure deficit on leaf area and water transport in flower stems of soil-less culture rose".AGRICULTURAL WATER MANAGEMENT 81.1-2(2006):216-224. |
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