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Emergence and root growth of three pregerminated cool-season grasses under salt and water stress
Author
Mueller, D. M.
Bowman, R. A.
Publisher
Society for Range Management
Publication Year
1989-11-01
Body

Reclaiming salt-affected soils under semiarid conditions without irrigation is difficult. High salt concentrations both delay and decrease germination and emergence, which increases the time a soil must remain moist for germination and emergence to take place. Delayed germination can also affect a plant's capability to withstand summer drought because of limited root development. Cultural practices that encourage rapid growth at conditions suboptimal for germination should increase seedling emergence and reduce moisture requirements for emergence. We determined from greenhouse studies the effects of different levels of soil salinity and soil water on emergence and on root and shoot growth of 3 pregerminated cool-season grasses: 'Nordan' crested wheatgrass (Agropyron desertorum) (L.) Gaertn.), 'Flintlock' western wheatgrass (Pascopyrum smithii (Rydb.) A. Love), and 'Vinall' Russian wildrye (Psathyrostachys juncea (Fischer) Nevski). Seed pregerminated prior to sowing resulted in more rapid emergence than untreated seed for all species at all levels of soil salinity and soil water. Salinity and water stress delayed and/or reduced emergence more in the untreated than pregerminated seed of Russian wildrye and western wheatgrass. Pregerminating seed before planting also resulted in greater root biomass for all species and greater root lengths for the 2 wheatgrass species than did untreated seed. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/3899234
Additional Information
Mueller, D. M., & Bowman, R. A. (1989). Emergence and root growth of three pregerminated cool-season grasses under salt and water stress. Journal of Range Management, 42(6), 490-495.
ISSN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/645014
Journal Volume
42
Journal Number
6
Journal Pages
490-495
Collection
Rangeland Ecology & Management (REM)
Journal Name
Journal of Range Management
Keywords
germination
saline soil|seeding
seed treatments