Germination characters and early seedling growth of wheat (Triticum aestivum L.) genotypes under salt stress conditions

2016 ◽  
Vol 19 (5) ◽  
pp. 383-392 ◽  
Author(s):  
Rabiul Alom ◽  
Md. Abu Hasan ◽  
Md. Rabiul Islam ◽  
Qing-Feng Wang
Keyword(s):  
Triticum Aestivum ◽  
Salt Stress ◽  
Seedling Growth ◽  
Triticum Aestivum L ◽  
Stress Conditions ◽  
Early Seedling Growth ◽  
Early Seedling

scholarly journals INFLUENCE OF NaCL SALINITY ON GERMINATION AND EARLY SEEDLING GROWTH IN WHEAT (Triticum aestivum, L.).

2010 ◽  
Vol 1 (2) ◽  
pp. 333-345
Author(s):  
M. Helaly ◽  
Z. Mohamed ◽  
M. Abdel Maksoud ◽  
Sally Arafa
Keyword(s):  
Triticum Aestivum ◽  
Seedling Growth ◽  
Triticum Aestivum L ◽  
Nacl Salinity ◽  
Early Seedling Growth ◽  
Early Seedling

The effect of salinity on early seedling growth of seeds of three wheat (Triticum aestivum L.) cultivars

1995 ◽  
Vol 75 (1) ◽  
pp. 175-177 ◽  
Author(s):  
R. Reggiani ◽  
A. Bertani ◽  
S. Bozo
Keyword(s):  
Triticum Aestivum ◽  
Seedling Growth ◽  
Triticum Aestivum L ◽  
The Other ◽  
Salt Tolerant ◽  
Ion Regulation ◽  
Sodium Accumulation ◽  
Early Seedling Growth ◽  
Salinity Levels ◽  
Early Seedling

We studied the effects of three salinity levels (50, 100 and 150 mM NaCl) on the early seedling growth of three wheat (Triticum aestivum L.) cultivars of Albanian origin characterized by different sensitivities to salt. Sodium accumulation was similar in seedlings of different cultivars and, in general, Na+ was confined to the root. Chloride accumulated at high levels in both the root and the shoot but least so in Daity. No appreciable differences were observed in K+ content. The most salt-tolerant cultivar showed a higher capacity for osmoregulation than the other two cultivars. Key words: Ion regulation, ion toxicity, osmoregulation, salinity, Triticum aestivum

Prioritisation of candidate genes in QTL regions for seed germination and early seedling growth in bread wheat (Triticum aestivum) under salt-stress conditions

2021 ◽  
Vol 72 (1) ◽  
pp. 1
Author(s):  
Elham Rezaei ◽  
Eslam Majidi Hervan ◽  
Amin Azadi ◽  
Alireza Etminan ◽  
Hossein Ramshini
Keyword(s):  
Triticum Aestivum ◽  
Salt Stress ◽  
Candidate Genes ◽  
Metabolic Process ◽  
Stress Conditions ◽  
Phenotypic Variance ◽  
Fresh Weight ◽  
Main Effect ◽  
Early Seedling ◽  
Go Terms

Salinity and drought are major abiotic stresses affecting wheat (Triticum aestivum L.) production throughout the world, and discovery of loci for traits affecting yield under salinity may lead to the breeding for salt-tolerant plants. In the present study, 186 F10 recombinant inbred line (RIL) populations were evaluated under salt-stress conditions in order to identify main-effect and epistatic-effect quantitative trait loci (QTLs) for 15 traits in wheat during the germination and early-seedling stages. In total, 61 main-effect QTLs on 15 chromosomes and 21 epistatic interactions on 12 chromosomes were detected through composite interval mapping (CIM) and a mixed-model-based CIM method. Two major QTLs for primary-leaf fresh weight and coleoptile fresh weight were detected on chromosome (or linkage group) 5B2 and 2D, respectively, which contributed ~44% and 43% of the phenotypic variance. Additionally, 12 QTL clusters including different traits were detected on 1A1, 3A, 4A, 2B1, 3B, 5B1 and 2D1. Candidate genes were identified within QTL regions and gene ontology (GO) enrichment analysis was performed. In total, 9134 candidate genes were grouped into 274 GO terms (including 79 GO terms involved in the ‘biological process’ category). These genes directly or indirectly play a vital role such as lipid localisation, biological regulation, fatty acid biosynthetic process, cellular process, DNA conformation change, translational elongation, carbohydrate metabolic process, Fe ion homeostasis, hydrogen peroxide metabolic process, and pigment biosynthetic process at the germination and early-seedling stages under salt-stress conditions.

Salt Stress Inhibits Germination and Early Seedling Growth in Cabbage (Brassica oleracea capitata L.)

2007 ◽  
Vol 10 (6) ◽  
pp. 910-914 ◽  
Author(s):  
M. Jamil ◽  
Kyeong Bo Lee ◽  
Kwang Yong Jung ◽  
Deog Bae Lee ◽  
Mi Suk Han ◽  
...  
Keyword(s):  
Salt Stress ◽  
Brassica Oleracea ◽  
Seedling Growth ◽  
Early Seedling Growth ◽  
Early Seedling

Physiological response of chickpea (Cicer arietinum L.) at early seedling stage under salt stress conditions

2019 ◽  
Author(s):  
Anita Mann ◽  
Gurpreet Kaur ◽  
Ashwani Kumar ◽  
Satish Kumar Sanwal ◽  
Jogendra Singh ◽  
...  
Keyword(s):  
Salt Stress ◽  
Salt Tolerance ◽  
Seedling Growth ◽  
Root Length ◽  
Dry Weight ◽  
Shoot Length ◽  
Seedling Stage ◽  
Tolerance Index ◽  
Early Seedling Growth ◽  
Early Seedling

Screening of chickpea lines for salt tolerance through seed germination and early seedling growth is crucial for their evaluation. Seeds of 30 chickpea genotypes were germinated on a sand bed irrigated with saline (3, 6, 9, 12 dS/m) and control solutions upto 30 days. At the early seedling stage (25-30 days), germination percentage, chlorophyll content, proline, root length, shoot length and seedling dry weight were found to be affected due to salinity. Salt tolerance index (STI) for plant biomass maintained a significant correlation with chlorophyll, proline, shoot length, and root length, which indicated that these parameters could be used as selection criteria for screening chickpea genotypes against salt stress. Significant differences in shoot length, root length, and seedling dry weight in 30-day-old seedlings were observed among selected chickpea genotypes as well. From the overall observation of germination characterstics and early seedling growth, it is concluded that the chickpea genotypes, HC-1, HC-5, ICC 867, ICC 5003, H-10-41 showed better salt tolerance as compared to the available salt tolerant check variety.

Putrescine Reduces NaCl-Induced Inhibition of Germination and Early Seedling Growth of Rice (Oryza sativa L.)

1988 ◽  
Vol 15 (6) ◽  
pp. 761 ◽  
Author(s):  
L Prakash ◽  
G Prathapasenan
Keyword(s):  
Salt Stress ◽  
Water Uptake ◽  
Seedling Growth ◽  
Oryza Sativa L ◽  
Chloride Ions ◽  
Embryo Axis ◽  
Nacl Solution ◽  
Early Seedling Growth ◽  
Early Seedling ◽  
Germination And Growth

Changes induced by NaCl and putrescine during germination and early seedling growth of rice were examined for 120 h. Rates of germination and growth of embryo axis decreased when seeds were subjected to salt stress (100, 150 and 200 mM NaCl). NaCl at 150 mM concentration significantly reduced the water uptake of seeds and the rate of mobilisation of reserves. All concentrations of putrescine (0.001, 0.01, 0.1 and 1.0mM) applied exogenously to seeds increased the rate of germination and seedling growth when NaCl(150 mM) was also present and 0.01 mM putrescine gave maximum response. Addition of putrescine (0.01 mM) to NaCl solution (150 mM) reduced the net accumulation of sodium and chloride ions in seeds and increased their water uptake. Thus, putrescine can alleviate the adverse effects of NaCl during germination and early seedling growth of rice.

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