Effects of temperature, water potential, and sodium chloride on Indiangrass germination
Author
Fulbright, T. E.Issue Date
1988-05-01Keywords
moisture characteristicvarieties
regeneration
sodium chloride
soil water potential
seed dispersal
soil salinity
efficiency
germination
Sorghastrum nutans
Texas
temperature
Metadata
Show full item recordCitation
Fulbright, T. E. (1988). Effects of temperature, water potential, and sodium chloride on Indiangrass germination. Journal of Range Management, 41(3), 207-210.Publisher
Society for Range ManagementJournal
Journal of Range ManagementDOI
10.2307/3899168Additional Links
https://rangelands.org/Abstract
Indiangrass [Sorghastrum nutans (L.) Nash] is widely used in range seeding. Objectives of this study were to determine the effects of temperature, water potential, and sodium chloride on germination of 'Lometa', 'Cheyenne', 'Llano', 'Oto', and 'Tejas' Indiangrass. Seeds were germinated at 6 alternating temperatures ranging from 5-15 to 30-40 degrees C (12 hours-12 hours). Lometa, Cheyenne, and Tejas seeds were germinated in polyethylene glycol (mol. wt. = 8,000) solutions mixed to approximate water potentials of 0, -0.4, -0.8, -1.2, and -1.6 MPa and in 0, 0.06, 0.12, 0.18, and 0.24 mol liter-1 sodium chloride solutions. Optimum temperatures for percent germination were 10-20 to 25-35, 10-20 to 20-30, and 15-25 and 20-30 degrees C for Cheyenne and Tejas, Llano and Oto, and Lometa seeds, respectively. Percent germination of Cheyenne and Lometa seeds was reduced at water potentials of -0.8 MPa and lower, while Tejas seeds exhibited lower percent germination than controls at -1.2 and -1.8 MPa. Percent germination of Cheyenne and Lometa seeds was reduced by sodium chloride concentrations of 0.12 mol liter-1 and greater. Germination of Tejas seeds was reduced at 0.18 and 0.24 mol liter-1. Indiangrass varieties appear to germinate within a similar range of temperatures but vary in germination response to low water potentials.Type
textArticle
Language
enISSN
0022-409Xae974a485f413a2113503eed53cd6c53
10.2307/3899168