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Publication Type J
Authors Zhang, Q; Rue, K; Mueller, J
Author Full Name Zhang, Qi; Rue, Kevin; Mueller, Jeanna
Title The Effect of Glycinebetaine Priming on Seed Germination of Six Turfgrass Species under Drought, Salinity, or Temperature Stress
Source HORTSCIENCE
Language English
Document Type Article
Author Keywords abiotic stress; seed priming; germination rate
Keywords Plus PHYSIOLOGICAL-RESPONSES; EXOGENOUS APPLICATION; CHILLING TOLERANCE; GROWTH; WHEAT; PLANTS; SALT; CULTIVARS; BETAINE; ESTABLISHMENT
Abstract Glycinebetaine (GB) seed priming enhances stress tolerance in various plants during the germination and seedling growth stage; however, information regarding turfgrass is limited. In this study, GB at 5 to 50 mm was used to prime seeds of six turfgrass species to evaluate the potential of GB priming in enhancing tolerance to drought, salinity, and sub-optimal temperature during germination. Stress tolerance was determined as relative final germination percentage (FGP) and daily germination percentage (DGP), expressed as percentage of germination under stress conditions compared with the control treatment (i.e., unprimed seeds germinated under non-stress condition) for each species. Daily germination percentage was more sensitive to stress than FGP. Perennial ryegrass (Lolium perenne L.) showed high tolerance to drought, salinity, and chilling temperatures (5 and 10 degrees C below optimal germination temperature) followed by tall fescue (Festuca arundinacea Schreb.) and creeping bentgrass (Agrostis palustris L.), whereas kentucky bluegrass (Poa pratensis L.), bermudagrass [Cynodon dactylon var. dactylon (L.) Pers.], and zoysiagrass (Zoysia japonica Steud.) were stress-sensitive. Kentucky bluegrass and bermudagrass showed higher germination at 10 GB under temperature stress and drought and temperature stresses, respectively; however, other grasses showed limited responses to seed priming. Our results showed that the efficacy of GB priming is plant-, GB concentration-, and stressor-dependent.
Author Address [Zhang, Qi; Rue, Kevin] N Dakota State Univ, Dept Plant Sci, Fargo, ND 58108 USA; [Mueller, Jeanna] North Dakota State Seed Dept, Fargo, ND 58105 USA
Reprint Address Zhang, Q (reprint author), N Dakota State Univ, Dept Plant Sci, Dept 7670,POB 6050, Fargo, ND 58108 USA.
E-mail Address qi.zhang.1@ndsu.edu
Funding Agency and Grant Number U.S. Golf Association; ND Hatch [ND01540]
Funding Text We extend our gratitude to the U.S. Golf Association and the ND Hatch ND01540 for funding this research. We also appreciate the valuable suggestions and continents from Drs. Alan Zuk and Esther McGinnis during the preparation of this manuscript.
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Publisher AMER SOC HORTICULTURAL SCIENCE
Publisher City ALEXANDRIA
Publisher Address 113 S WEST ST, STE 200, ALEXANDRIA, VA 22314-2851 USA
ISSN 0018-5345
29-Character Source Abbreviation HORTSCIENCE
ISO Source Abbreviation Hortscience
Publication Date NOV
Year Published 2014
Volume 49
Issue 11
Beginning Page 1454
Ending Page 1460
Page Count 7
Web of Science Category Horticulture
Subject Category Agriculture
Document Delivery Number AU9ZA
Unique Article Identifier WOS:000345949200016
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