Knowledge Resource Center for Ecological Environment in Arid Area
Physiological Responses of Greenhouse-grown Drip-irrigated Chile Pepper under Partial Root Zone Drying | |
Sharma, Harmandeep1; Shukla, Manoj K.1; Bosland, Paul W.1; Steiner, Robert L.2 | |
通讯作者 | Shukla, Manoj K. |
来源期刊 | HORTSCIENCE
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ISSN | 0018-5345 |
EISSN | 2327-9834 |
出版年 | 2015 |
卷号 | 50期号:8页码:1224-1229 |
英文摘要 | Water saving, productivity, and quality of the chile pepper were evaluated under three irrigation treatments. Three drip irrigation treatments used were 1) control, where water was applied at the surface using two drip emitters; 2) partial root-zone drying vertically (PRDv), where subsurface irrigation was applied at 20 cm depth from soil surface; and 3) partial root-zone drying compartment (PRDc), where roots were divided into two compartments and irrigation was applied to one of the compartments on every alternate-day cycle for 15 days. Continuous measurements of soil water content were carried out during the growing seasons of 2013 and 2014, respectively. During both growing seasons, the stomatal conductance (g(S)) and net photosynthetic rates (P-n) were similar among all treatments including the control. In both PRD treatments, a higher rooting depth and root length density (RLD) than the control likely compensated for the water stress in dry soil zones by taking up more water from the water available parts of the root-soil system. In PRDc and PRA(v) treatments, 30% less water was applied than control without significant changes to plant stress expressed by stem water potential, plant height, capsaicinoid concentration, and yield. The increased irrigation water use efficiency (IWUE) demonstrated water saving potential of both Pith techniques for chile pepper production in water-limited arid environments. |
英文关键词 | `NuMex Joe E. Parker’ photosynthetic rate stomatal conductance root length density stem water potential capsaicinoid concentrations |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000361421000016 |
WOS关键词 | CAPSICUM-ANNUUM L. ; FURROW IRRIGATION ; YIELD RESPONSES ; WATER RELATIONS ; HOT PEPPER ; ARID AREA ; DROUGHT ; STRESS ; SYSTEM ; CULTIVARS |
WOS类目 | Horticulture |
WOS研究方向 | Agriculture |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187683 |
作者单位 | 1.New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA; 2.New Mexico State Univ, Appl Stat & Int Business Dept, Las Cruces, NM 88003 USA |
推荐引用方式 GB/T 7714 | Sharma, Harmandeep,Shukla, Manoj K.,Bosland, Paul W.,et al. Physiological Responses of Greenhouse-grown Drip-irrigated Chile Pepper under Partial Root Zone Drying[J]. New Mexico State University,2015,50(8):1224-1229. |
APA | Sharma, Harmandeep,Shukla, Manoj K.,Bosland, Paul W.,&Steiner, Robert L..(2015).Physiological Responses of Greenhouse-grown Drip-irrigated Chile Pepper under Partial Root Zone Drying.HORTSCIENCE,50(8),1224-1229. |
MLA | Sharma, Harmandeep,et al."Physiological Responses of Greenhouse-grown Drip-irrigated Chile Pepper under Partial Root Zone Drying".HORTSCIENCE 50.8(2015):1224-1229. |
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