scholarly journals GENETIC EVALUATION FOR MORPHOLOGICAL TRAITS OF CORIANDRUM SATIVUM GROWN UNDER SALT STRESS

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
A Aftab ◽  
MA Haider ◽  
Q Ali ◽  
A Malik
Keyword(s):  
Salt Stress ◽  
Root Length ◽  
Plant Biomass ◽  
Poor Performance ◽  
Green Plant ◽  
Shoot Length ◽  
Stress Conditions ◽  
Salt Tolerant ◽  
Root And Shoot Length ◽  
Tolerant Genotype

The Coriandrum is most important among the herb which is used as an ingredient in daily human food. It contains a good amount of antioxidants and health improving ingredients that save human body cells from diseases. It is very sensitive for abiotic environmental stress conditions involving drought, heat, and salt stress as important stress conditions. For this purpose, a study was planned to conduct in the greenhouse of the Institute of Molecular Biology and Biotechnology, University of Lahore to determine the effects of salt stress on Coriandrum seedling growth. For our study we have selected four Coriandrum varieties viz., GAMZE, EAGLE, SUPER XO, and PAK-ORG. The results revealed that there were significant differences among the treatments of NaCl concentrations, Coriandrum genotypes, and the interactions among the Coriandrum genotypes and salt concentrations applied. The average Coriandrum seedling length was recorded as 23.021±1.2026cm while root length was recorded as 22.0128±1.0027cm. The genotype GAMZE showed higher root and shoot length which indicated that GAMZE was a higher salt-tolerant genotype and may be used as a salt-tolerant genotype to improve yield per plant in Coriandrum. The genotype EAGLE has shown poor performance for all of the studied traits which indicated that it was a salt-sensitive Coriandrum genotype. The genetic advance and heritability were found higher for all of the studied traits. The significant correlation between shoot length and root length indicated that the genotypes grow longer roots under stress conditions to increase the shoot length of plants while survive under stressful environmental conditions. The selection of Coriandrum genotype on the basis of root length and shoot length may be useful to improve slat stress tolerance in Coriandrum genotypes for higher seed and green plant biomass yield.

scholarly journals EFFECTS OF SALICYLIC ACID PRIMING FOR SALT STRESS TOLERANCE IN WHEAT

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
MF Ghafoor ◽  
Q Ali ◽  
A Malik
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Seedling Growth ◽  
Root Length ◽  
Wheat Variety ◽  
Foliar Spray ◽  
Seed Priming ◽  
Shoot Length ◽  
Stress Conditions ◽  
Wheat Seedlings

The present research experiment was conducted in the greenhouse of the Institute of Molecular Biology and Biotechnology, The University of Lahore for determining the possible involvement of salicylic acid (SA) in seed priming and affects on the seedling growth and development under NaCl treatments in wheat variety ANAJ-2017, Shafaq-2006 and Galaxy-2013. The data was collected for various seedling traits and statistically analyzed, which revealed the significance of results for treatments, salt applications, genotypes and the interactions between salt treatments and genotypes. The lower coefficient of variation was recorded for all studied traits which revealed that there was consistency among the results for salicylic acid applications and salt or NaCl treatments. It was concluded from our study that the application of salicylic acid (SA) under salt (NaCl) stress conditions helps wheat seedlings to withstand and compete with stressful conditions. The study revealed that the seed priming with salicylic acid helps to improve root length, shoot length, seedling moisture percentage and fresh seedling weights. The application of NaCl caused to increase the root length, number of roots and shoot length of wheat while salicylic acid (SA) was applied in foliar spray. The use of water priming shows medium effects for the seedling growth of wheat under salt stress environmental conditions. The wheat variety Galaxy-2013 has shown good performance for most of the studied traits of seedlings under salt stress conditions. It was suggested from our study that the variety Galaxy-2013 may be used under salt stress conditions or salt affected soils to improve grain yield of wheat.

scholarly journals EFFECTS OF SALT STRESS ON THE GROWTH TRAITS OF CHICKPEA (CICER ARIETINUM L.) AND PEA (PISUM SATIVUM L.) SEEDLINGS

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
F Yousef ◽  
F Shafique ◽  
Q Ali ◽  
A Malik
Keyword(s):  
Salt Stress ◽  
Pisum Sativum ◽  
Cicer Arietinum ◽  
Root Length ◽  
Shoot Length ◽  
Stress Conditions ◽  
Plant Weight ◽  
Chick Pea ◽  
Cicer Arietinum L ◽  
Pisum Sativum L

Chickpea (Cicer arietinum L.) and pea (Pisum sativum L.) both are important legume crops grown throughout the world for protein and they also contain essential vitamins and fibers. Chick pea and pea are very sensitive to abiotic stress that includes heat, drought, cold and salt stress conditions. To access the effects of salt stress on the chick pea and pea an experiment was performed in the Green House of Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore. The seeds of both genotypes were grown in 18 pots with 2 kg pure sand and applied different concentrations of NaCl stress after 7 days of germination. The application of salt treatments was repeated 4 times each after 7days interval and data of different morphological traits was recorded each time. The treatments were included control, 0.25Molar NaCl, 0.5Molar NaCl concentrations. The data was recorded and pooled analysis of variance was carried out for significance of results. The average root length was recorded as 5.7522±0.0211cm and shoot length (11.139±0.0011cm) while average fresh plant weight was recorded as 0.5811±0.0002g under different salt stress conditions. The finding of our result proved that both varieties chickpea and pea showed variable behavior under salt stress conditions while the pea genotype showed more tolerant against different salt treatments which indicated pea genotypes may be used for future breeding to improve yield and growth of pea crop. The results showed that there was significant and positive correlation among root length, shoot length and leaf length of chickpea and pea seedlings which concluded that root length and shoot length may be used as selection criteria to induced stress tolerance in crop plants.

scholarly journals Effect of Salinity Stress on Physiological Changes in Winter and Spring Wheat

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1193
Author(s):  
Muhammad Sohail Saddiq ◽  
Shahid Iqbal ◽  
Muhammad Bilal Hafeez ◽  
Amir M. H. Ibrahim ◽  
Ali Raza ◽  
...  
Keyword(s):  
Salt Stress ◽  
Chlorophyll Fluorescence ◽  
Winter Wheat ◽  
Spring Wheat ◽  
Root Length ◽  
Growth Traits ◽  
Triticum Aestivum L ◽  
Shoot Length ◽  
Plant Tolerance ◽  
Improvement Programs

Salinity is a leading threat to crop growth throughout the world. Salt stress induces altered physiological processes and several inhibitory effects on the growth of cereals, including wheat (Triticum aestivum L.). In this study, we determined the effects of salinity on five spring and five winter wheat genotypes seedlings. We evaluated the salt stress on root and shoot growth attributes, i.e., root length (RL), shoot length (SL), the relative growth rate of root length (RGR-RL), and shoot length (RGR-SL). The ionic content of the leaves was also measured. Physiological traits were also assessed, including stomatal conductance (gs), chlorophyll content index (CCI), and light-adapted leaf chlorophyll fluorescence, i.e., the quantum yield of photosystem II (Fv′/Fm′) and instantaneous chlorophyll fluorescence (Ft). Physiological and growth performance under salt stress (0, 100, and 200 mol/L) were explored at the seedling stage. The analysis showed that spring wheat accumulated low Na+ and high K+ in leaf blades compared with winter wheat. Among the genotypes, Sakha 8, S-24, W4909, and W4910 performed better and had improved physiological attributes (gs, Fv′/Fm′, and Ft) and seedling growth traits (RL, SL, RGR-SL, and RGR-RL), which were strongly linked with proper Na+ and K+ discrimination in leaves and the CCI in leaves. The identified genotypes could represent valuable resources for genetic improvement programs to provide a greater understanding of plant tolerance to salt stress.

scholarly journals Morpho- biochemical evaluation of Brassica rapa sub-species for salt tolerance

Genetika ◽  
2016 ◽  
Vol 48 (1) ◽  
pp. 323-338 ◽  
Author(s):  
Sohail Jan ◽  
Zabta Shinwari ◽  
Malik Rabbani
Keyword(s):  
Salt Stress ◽  
Chlorophyll A ◽  
Brassica Rapa ◽  
Research Work ◽  
Poor Performance ◽  
Dry Weight ◽  
Salt Tolerant ◽  
Relative Water ◽  
Maximum Tolerance ◽  
Yellow Type

Salt stress is one of the key abiotic stresses that affect both the qualitative and quantitative characters of many Brassica rapa sub-species by disturbing its normal morphobiochemical processes. Therefore, the present research work was designed to study the effect of different NaCl events (0, 50,100 and 150 mmol) on morphological and biochemical characters and to screen salt tolerant genotypes among brown, yellow and toria types of B. rapa sub-species. The plants were grown in test tubes with addition of four level of NaCl (0, 50,100 and 150 mmol). The effect of salinity on shoot and root length, shoot/ root fresh and dry weight, relative water content (RWC), proline and chlorophyll a, b, a+b contents was recorded after 4 weeks of sowing. The genotype 22861 (brown type) showed excellent morphological and biochemical performance at all stress levels followed by Toria-Sathi and Toria-A respectively as compared to Check variety TS-1. The genotype 26158 (yellow type) gave very poor performance and retard growth. The %RWC values and chlorophyll a, b and a+b contents were decreased several folds with the increase of salt concentration. While, the proline contents was increased with raising of salt stress. The brown and toria types showed maximum tolerance to salt stress at early germination stages as compare to yellows one. The present study will serve as model to develop quick salt tolerant genotypes among different plant sub-species against salt stress.

scholarly journals In Vitro Regeneration of Onion (Allium cepa L.) Genotypes under Salt Stress Condition

2021 ◽  
pp. 34-43
Author(s):  
Asfiqur Rahman Plabon ◽  
M. E. Hoque ◽  
Farhana Afrin Vabna ◽  
Fahima Khatun
Keyword(s):  
Salt Stress ◽  
Allium Cepa ◽  
Root Length ◽  
Stress Condition ◽  
In Vitro Regeneration ◽  
Shoot Length ◽  
Salinity Level ◽  
Salt Stress Condition ◽  
Allium Cepa L

Salinity is a major problem affecting crop production all over the world. Excessive soil salinity can reduce the productivity of many agricultural crops including many vegetables and spices. Onion is one of the most important spices in the Asiatic region which is now in high demand. The experiment was conducted to observe in vitro regeneration of onion (Allium cepa L.) under salt stress condition from September 2016 to July 2017. The experiment was conducted as two factorial (genotype and treatment) Completely Randomized Design (CRD) with 3 replications for each treatment. Shoot tip segments of three genotypes namely Faridpuri, Taherpuri and Pusa red (Indian) were cultured in MS (Murashige and skoog, 1962) media supplemented with 25, 50, 75 and 100 mM NaCl. The genotype Faridpuri gave maximum salt tolerance upto 100 mM salinity level with 10.60 cm shoot length and 1.94 cm root length having the highest relative shoot and root growth. Pusa red was found to be salinity sensitive genotype which showing lowest shoot length of 7.03 cm and root length of 0.96 cm at 100 mM NaCl treatment. However, Taherpuri was tolerant up to 100 mM salinity level with 8.14 cm shoot length and 1.25 cm root length. Both the highest fresh weight of root (54.77 mg) and dry weight of root (41.36 mg) was from the genotype Faridpuri with 25 mM NaCl treatment. However, a convenient in vitro regeneration protocol of onion genotypes under different salinity level has been developed and the genotype Faridpuri can be used for further investigation in field condition to evaluate its performance at various salinity levels.

scholarly journals INFLUENCE OF CADMIUM ON GROWTH AND BIOCHEMICAL CONTENTS OF TOMATO PLANTS

1970 ◽  
pp. 04-06
Author(s):  
A. Natarajan, P. Vijayarengan ◽  
M. Vijayaragavan
Keyword(s):  
Root Length ◽  
Growth Parameters ◽  
Sandy Loam ◽  
Shoot Length ◽  
Phenol Content ◽  
Tomato Plants ◽  
Biochemical Constituents ◽  
Root And Shoot Length ◽  
Soil Cadmium ◽  
Loam Soil

The increasing concentrations (10, 25, 50, 75 and 100 mg /kg) of soil cadmium on growth and biochemical contents in tomato plants were analysed on 30th sampling days. Control plants were maintained separately. Plants were grown in pots containing 3 kg of air dried sandy loam soil and treated with different concentrations (mg/kg) of cadmium (0, 10, 25, 50, 75 and 100 ). Treatments decreased the growth parameters such as root and shoot length  and biochemical constituents such as, protein,(except, proline and  phenol content) contents in tomato plants compared to untreated plants. The shoot length of cadmium treated tomato plants was higher than the root length. proline and phenol content of root of  tomato plants was higher than the shoot.

HERBICIDAL ACTIVITY OF Ageratum conyzoides AGAINST PARTHENIUM

2020 ◽  
Vol 27 (2) ◽  
pp. 137-146
Author(s):  
Nimra Javaid ◽  
Arshad Javaid ◽  
Mukhtar Hussain Shah ◽  
Iqra Haider Khan ◽  
Syed Muhammad Waleed
Keyword(s):  
Root Length ◽  
Plant Biomass ◽  
Growth Parameters ◽  
Shoot Length ◽  
Herbicidal Activity ◽  
Ageratum Conyzoides ◽  
Stem Extract ◽  
Noxious Weed ◽  
Germination And Growth ◽  
Laboratory Bioassays

This study was carried out to explore herbicidal potential of an asteraceous weed Ageratum conyzoides against an exotic noxious weed parthenium (Parthenium hysterophorus L.). Different concentrations (0, 2, 4, 6, 8 and 10%) of aqueous extracts of various parts of the tested weed were used in laboratory bioassays. ANOVA revealed the significant effect of plant part bioassay and extract concentration on germination as well as various root and shoot growth parameters. Leaf extract was found the most herbicidal where a 10% extract completely inhibited the germination and growth of parthenium. Root and inflorescence extracts were also highly inhibitory in suppressing the germination up to 89% and 95%, shoot length up to 80% and 89%, root length up to 86% and 91%, and plant biomass up to 89% and 98%, respectively. Stem extract showed the least herbicidal activity causing up to 46%, 59%, 73% and 37% reduction in germination, shoot length, root length and plant biomass, respectively. This study concludes that leaf, root and inflorescence extracts of A. conyzoides possess strong herbicidal potential against germination and growth of parthenium.

Proteomic study of a tolerant genotype of durum wheat under salt-stress conditions

2013 ◽  
Vol 406 (5) ◽  
pp. 1423-1435 ◽  
Author(s):  
Anna Laura Capriotti ◽  
Grazia Maria Borrelli ◽  
Valentina Colapicchioni ◽  
Roberto Papa ◽  
Susy Piovesana ◽  
...  
Keyword(s):  
Salt Stress ◽  
Durum Wheat ◽  
Stress Conditions ◽  
Proteomic Study ◽  
Tolerant Genotype

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.

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