عنوان المقالة:Seed germination and seedling growth of hexaploid wheat (Triticum aestivum L.) varieties as influenced by different levels of sodium chloride
ABBAS LATEEF ABDULRAHMAN, SITI NOR AKMAR ABDULLAH, MOHD RAFII YUSOP, MOHD RAZI ISMAIL AND MAHDI MORADPOUR
الملخص العربي
ABSTRACT
This experiment was conducted in the laboratory of plantation crops/Faculty of
Agriculture/University Putra Malaysia in 2015 to evaluate salinity effects on seed
germination percentage and some seedling growth traits of eight bread wheat cultivars
and genotypes (Triticum aestivum L.). Salinity treatments were measured (0, 50, 100, 150,
200, 250 and 300 mM sodium chloride). Distilled water was added to control treatment for
each cultivar for comparison. Data regarding germination percentage, water uptake (%),
plumule and radicle length (cm), strong seed index and salt tolerance index were counted.
Based on salt tolerance index, only one genotype (G8) fell in the tolerant class; three
accessions (G1, G6 and G10) were moderately salt tolerant; one genotype (G2) was
moderately salt susceptible and three accessions (Abo-Graib, Forat and Dijla) were salt
susceptible. Results showed that increasing concentration of NaCl solution resulted in the
gradual reduction in all studied parameters in all wheat varieties and genotypes. The G8
genotype showed significant superiority on the other genotypes and varieties in all traits
above which can be used as an improved genotype against salt stress in breeding
programmes, while the Abo-Graib gave the lowest rate under the probability level of
significance of 0.05. These were positively and significantly (P≤0.01) correlated between
the traits studied under six concentrations (mM) of NaCl stress except the relationship
between germination percentage and each of water uptake, plumule length, radicle length,
while strong seed index was positively but not significantly correleted. Whereas the
correlation was positive and significant (P≤0.05) between water uptake and plumule length,
radicle length and strong seed index.
عباس لطيف عبد الرحمن | Abbas Lateef Abdulrahman | 3892