TITLE

Water Stress Induced by Polyethylene Glycol 6000 and Sodium Chloride in Two Maize Cultivars

AUTHOR(S)
Mohammadkhani, Nayer; Heidari, Reza
PUB. DATE
January 2008
SOURCE
Pakistan Journal of Biological Sciences;2008, Vol. 11 Issue 1, p92
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Responses of growth and germination to water stress reduced by PEG 6000 and NaC1 m two maize (Zea mays L.) cultivars 704 and 301 were studied. Water stress was generated by additions of PEG 6000 or sodium chloride to the root medium. Water potentials were: zero as control and -0.15, -0.49, -1.03 and -1.76 MPa as treatments. After 24 h treatment, the roots and shoots length and dry weight were of plants determined. In water stress, roots and shoots length and dry weight decreased at both treatments m both varieties. The germination is inversely proportional to the NaC1 and PEG concentrations it means that 704 and 301 cultivars of maize showed a reduction in germination with an increasing in NaC1 or PEG concentrations induced water deficit, but this reduction in NaC1 treatment were higher than PEG treatment. At treatment by PEG, the germination was severely decreased at -1.03 MPa. At treatment by NaC1 no germination occurred at -1.03 in 301 var. and germination was very low at -1.03 MPa in 704 var., no germination occurred at -1.76 MPa in both varieties at both treatments. Decrease of germination in 704 variety was higher than 301 variety.
ACCESSION #
28097689

 

Related Articles

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics