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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Impact of Irrigation Water Salinity on Germination and Seedling Growth of Egyptian Barley Cultivars
Author(s)
Farid Hellal 1, Ahmad Amer 2, Kadria EL Azab2 and Raafat Zewainy1
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DOI:10.17265/2161-6264/2018.05.003
Affiliation(s)
1. Plant Nutrition Dept., National Research Centre, Dokki, El-Behouth St., Cairo 12622, Egypt
2. Soils, Water and Environ. Res. Institute, Agric. Res. Center (ARC), Giza 12619, Egypt
ABSTRACT
The aim of this research was to assess the influence of saline
irrigation water which prepared to obtain salt stress of 0.31, 3.21, 5.74, 8.28 and 12.86 dS/m on seed
germination, and early seedling growth of 10 cultivars (Giza 123, 124, 125, 126, 127, 129, 130, 134, 135 and 2000) of
Egyptian barley grown in clay loam soil. Germination was tested in germination
cups filled with clay loam soil moistened with different concentrations of
saline water, in the growth chambers condition. Results indicated that, the
highest values of germinated seeds were recorded mainly at fresh water (0.31 dS/m) at all germination
periods. Also, the maximum values were recorded at investigated barley
cultivars Giza 126, 127 and 2000 for three studied periods (3, 5 and 7 d),
while Giza 129, 130 and 135 got the same trend where the highest values for
germinated seeds attained at the 5 d, 7 d and at 3 d were 9.5 seeds, respectively.
Barley cultivar Giza 126 had significantly higher root length (4.07 cm), shoot
length (11.75 cm), root fresh weight (48.2 mg), shoot fresh weight (101.1 mg), root dry weight
(7.1 mg), shoot dry weight (6.6 mg) and seedling vigor index (13.44). The 6 kDa protein bands had the same increasing
after salt stress in cultivars Giza 123, 127, 129, 134 and 135. Barley cultivars in clay soil can be classified
into barley cultivars Giza 126, 127 and 2000 as highly tolerance and barley cultivar
Giza 129, 123 and 127 as moderately
tolerance and the rest is less.
KEYWORDS
Germination, plant length, barley cultivars, salt stress, clay loam soil.
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