Arid
Physiological Responses to Salinity in Turfgrass
Marcum, K. B.
通讯作者Marcum, K. B.
会议名称Middle East Horticultural Summit
会议日期MAR 26, 2013
会议地点Dubai, U ARAB EMIRATES
英文摘要

Critical freshwater shortages are occurring in urban population centres worldwide. Overuse of freshwater resources, coupled with effects of global warming such as salt water intrusion and desertification are resulting in salinization of water and soil resources. Many governments have responded by placing restrictions on the use of freshwater for irrigating turfgrass landscapes, instead requiring use of secondary saline water sources. Progress has been made in understanding turfgrass salinity tolerance mechanisms, and in development of salt tolerant turfgrass cultivars and alternate native species. Turf-type grass species show extreme range in salt tolerance, from salt-sensitive to seawater tolerant. Salinity tolerance in turfgrass species is associated with stimulated root, and sometimes shoot growth under moderate salinities, resulting in increased root/shoot ratios. Shoot saline ion regulation, coupled with minimal yet complete osmotic adjustment, is a key salinity tolerance mechanism in grasses. In Chloridoid grasses, which include most C-4 turfgrasses, ion regulation is largely achieved by leaf salt gland excretion. Under saline conditions, osmotic adjustment in turf-type grass species is achieved predominately with saline ions, compartmentalized in vacuoles. Of potential compatible solutes, only glycinebetaine accumulates to levels sufficient for cytoplasmic osmotic adjustment in these species.


英文关键词compatible solute euhalophyte excretion halophyte osmotic adjustment salt gland salt tolerance
来源出版物MIDDLE EAST HORTICULTURAL SUMMIT
ISSN0567-7572
出版年2014
卷号1051
页码105-115
EISBN978-94-62610-39-2
出版者INT SOC HORTICULTURAL SCIENCE
类型Proceedings Paper
语种英语
国家U Arab Emirates
收录类别CPCI-S
WOS记录号WOS:000357658300009
WOS关键词SALT-MARSH GRASS ; TOLERANCE MECHANISMS ; CATION ACCUMULATION ; KENTUCKY BLUEGRASS ; NACL TOLERANCE ; CULTIVARS ; GROWTH ; ZOYSIAGRASS ; POACEAE ; GLANDS
WOS类目Agronomy ; Plant Sciences ; Horticulture
WOS研究方向Agriculture ; Plant Sciences
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/303533
作者单位(1)United Arab Emirates Univ, Dept Aridland Agr, Coll Food & Agr, Abu Dhabi, U Arab Emirates
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Marcum, K. B.. Physiological Responses to Salinity in Turfgrass[C]:INT SOC HORTICULTURAL SCIENCE,2014:105-115.
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