scholarly journals Alleviation of Salinity Stress During Seed Germination and Early Growth Stage in Sweet Pepper by Seed Priming with Acetyl Salicylic Acid

2016 ◽  
Vol 7 (12) ◽  
pp. 1255-1261 ◽  
Author(s):  
S. El-Afifi ◽  
M. Zaghloul ◽  
H. Ahmed ◽  
M. Mohamed
Keyword(s):  
Salicylic Acid ◽  
Seed Germination ◽  
Salinity Stress ◽  
Growth Stage ◽  
Seed Priming ◽  
Sweet Pepper ◽  
Early Growth ◽  
Acetyl Salicylic Acid ◽  
Early Growth Stage

Effect of Co2+ and Ni2+ on Seed Germination and Seedling Growth of Oilseed Rape

2013 ◽  
Vol 807-809 ◽  
pp. 976-979
Author(s):  
Qing Song Yang ◽  
Yan Zhao
Keyword(s):  
Heavy Metals ◽  
Seed Germination ◽  
Oilseed Rape ◽  
Seedling Growth ◽  
Metal Toxicity ◽  
Growth Stage ◽  
Early Growth ◽  
Early Growth Stage ◽  
Germination And Growth ◽  
Factor Governing

Metal toxicity is an important factor governing germination and growth of plants. We have investigated how Co2+and Ni2+treatment affected germination and early growth stage of oilseed rape (Brassica napusL.). The results showed that the single pollution of Co2+was capable to stimulate the seed germination and seedling growth of oilseed rape at lower concentration, but the phenomena did not exist by the single pollution of Ni2+. Not only polluted by Co2+ but also by Ni2+, all indexes of germination and growth reduced gradually at higher concentration among examined concentration of heavy metals. Meanwhile, effects of Ni2+single pollution were stronger than that of Co2+single pollution.

Studies of Pearl Millet under Salinity Stress at Early Growth Stage

2000 ◽  
Vol 3 (10) ◽  
pp. 1577-1579 ◽  
Author(s):  
Jehan Bakht ◽  
M. Banarus khan ◽  
Mohammad Shafi
Keyword(s):  
Pearl Millet ◽  
Salinity Stress ◽  
Growth Stage ◽  
Early Growth ◽  
Early Growth Stage

scholarly journals Effects of salinity stress on seedling biomass, physiochemical properties and grain yield in different breeding wheat genotypes

2021 ◽  
Author(s):  
Alireza Pour-Aboghadareh ◽  
Mohammad Reza Mehrvar ◽  
Sara Sanjani ◽  
Ashkboos Amini ◽  
Hamidreza Nikkhah Chaman-Abad ◽  
...  
Keyword(s):  
Grain Yield ◽  
Salinity Stress ◽  
Growth Stage ◽  
Stability Index ◽  
Early Growth ◽  
Strongly Correlated ◽  
Early Growth Stage ◽  
Wheat Genotypes ◽  
Relative Water ◽  
Cropping Seasons

Abstract The salinity tolerance of 17 breeding wheat genotypes along with three local varieties was evaluated under control and salinity stress (160 mM NaCl) conditions. At the seedling stage, shoot and root dry weights, relative water content (RWC), membrane stability index (MSI), relative chlorophyll content (SPAD index), root and shoot Na+ (RN and SN), root and shoot K+ (RK and SK), root and shoot K+/Na+ ratios (RKN and SKN), root-to-shoot Na+ translocation (RTSN), root-to-shoot K+ translocation (RTSK), stomatal conductance (GS), transpiration rate (TE), and photosynthesis rate (PN) were measured. Moreover, the investigated genotypes were assessed in terms of grain yield across four saline regions during the 2018–2019 cropping seasons. Salinity stress caused a significant reduction in the RDW, SDW, PN, GS, TE, SK, RKN, SKN, RTSN, and RTSK, but resulted in increased RN, RK, and SN. The results of AMMI analysis of variance also indicated significant differences among test locations, genotypes, and their interaction effects. The PCA-based biplot revealed that grain yield strongly correlated with RKN and RK. Furthermore, the correlation among PN, GS, and TE traits was strong and positive and had a positive correlation with RWC, MSI, RDW, and SPAD index. Considering our results, RK and RKN were identified as useful physiological tools to screen salt tolerance at the early-growth stage. According to the ranking patterns obtained by the average sum of ranks method (ASR) and grain yield, we observed that genotype number G5 had considerable physiological potential at the early-growth stage and also responded well to soil salinity at the farm; thus this genotype can be promoted for commercial production.

scholarly journals MGIDI and WAASB indices: The useful approaches for selection of salt-tolerant barley genotype at the early growth and maturity stages

2021 ◽  
Author(s):  
Alireza Pour-Aboughadareh ◽  
Sara Sanjani ◽  
Hamidreza Nikkhah Chaman-Abad ◽  
Mohammad Reza Mehrvar ◽  
Ameneh Asadi ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Growth Stage ◽  
Weighted Average ◽  
Early Growth ◽  
Stress Conditions ◽  
Physiological Traits ◽  
Saline Stress ◽  
Salt Tolerant ◽  
Early Growth Stage ◽  
Barley Genotypes

Abstract Salinity stress is one of the major limiting abiotic stresses that decrease crop production worldwide. To recommend genotypes for cultivation under saline stress conditions, comprehensive understanding of genetic basis and plant responses to this stress is need. In the present study, a total of 20 barley genotypes were investigated to isolate potential salt-tolerant genotypes at the early growth stage using hydroponic system, and adult plant under field conditions. Different growth and physiological traits including root fresh and dry weights (RFW and RDW), shoot fresh and dry weights (SFW and SDW), relative water content (RWC), membrane stability index (MSI), relative chlorophyll content (SPAD index), root and shoot Na+ (RN and SN), root and shoot K+ (RK and SK), root and shoot K+:Na+ ratios (RKN and SKN), root-to-shoot Na+ translocation (RTSN), root-to-shoot K+ translocation (RTSK), stomatal conductance (GS), transpiration rate (TE), and photosynthesis rate (PN) were measured. Barley seedling were treated with two salinity levels (0 mM NaCl (as control conditions) and 200 mM NaCl (as stress conditions)) for 30 days. Moreover, the yield performance and stability of investigated barley genotypes were evaluated across five environments during the 2018–2020 cropping seasons. Salinity stress significantly decreased growth and physiological traits in all seedling plants; however, some salt-tolerant genotypes showed the lowest reduction in measured traits. Multivariate analysis grouped measured traits and tested genotypes into different clusters. The multi-trait genotype–ideotype distance index (MGIDI) selected genotypes G12, G14, G6, G7, and G16 as the salt-tolerant barley genotypes. Considering the results of the AMMI analysis showed that grain yields of tested barley genotypes were influenced by environment (E), genotype (G) and GE interaction effects. Based on the weighted average of absolute scores of the genotype index (WAASB) and other stability statistics, G7, G8, G14, and G16 were selected as superior genotypes. Considering the outputs of MGIDI and WAASB indices revealed that three genotypes G7, G14 and G16 can be recommended as new genetic resources for improving and stabilizing grain yield in barley programs for the moderate climate and saline regions of Iran. In conclusion, our results suggest that the using MGIDI index in the early growth stage can accelerate screening nurseries in barley breeding programs.

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