scholarly journals Effect of Crude Oil Concentrations on Growth and Photosynthetic Pigments of Helianthus Annus Bio-Augmented with Micrococcus luteus and Pseudomonas aeruginosa

Author(s):  
Samreen Ali ◽  
Sarwat Ismail ◽  
Shahnaz Dawar ◽  
S. Ghulam Musharraf ◽  
Zulfiqar Mirani ◽  
...  

Bioremediation of soil contaminated with organic chemicals is a challenging problem in the environmental scenario. On the basis of identification of remediation capability of Helianthus annus (sunflower) assisted with Pseudomonas aeruginosa and Micrococcus luteus were used to investigate the soil contaminated with petroleum hydrocarbons (crude oil) at varying concentrations (25,50,75,100,125, &150ml/ kg of soil) in a pot experiment carried out in a green house. According to both qualitative and quantitative analysis of parameters including plant height, stem girth, number of leaves, leaf area and photosynthetic pigments including chlorophyll a, b and carotenoid indicated that H.annus showed peculiar tolerance to the higher concentration of crude oil concentration in the soil containing both micrococcus and pseudomonas (MP) (combined) consortium showing positive synergetic effect on H.annus in remediating the petroleum hydrocarbons at all concentrations more significantly at higher concentration of crude oil (150ml/kg) of soil. The results show significant increase in growth of (both Micrococcus and Pseudomonas) MP treated plant as compare to control plants; in control the leaf area 18.716 ± 1.256, stem girth 3.40±0.10 and plant height 90.72±4.062 whereas in MP treated plant leaf area 19.65 ±0.292, stem girth 3.580 ±0.048, height 98.20±3.852 respectively. On the whole Helianthus anuus is commercial oil yielding crop that can be effectively applied to phytoremediation of petroleum hydrocarbons assisted with Micrococcus and Pseudomonas is a significant treatment for remediating the soil contaminated with petroleum hydrocarbon.

2019 ◽  
Vol 1 (2) ◽  
pp. 63-69
Author(s):  
Shabir Hussain ◽  
Hakoomat Ali ◽  
Muhammad Ehmer ◽  
Waqas Ahmad

The research was conducted at Research Area of Department of Agronomy, Bahauddin Zakariya University Multan, during the spring season, 2016. The study aimed to evaluate the influence of foliage applied zinc on growth, yield and oil contents of hybrid sunflower. Experimental treatments comprise of two sunflower hybrids viz. H1= Hysun-33 and H2= S-278 and three zinc levels viz. T1= Control (no application), T2=1% ZnSO4 and T3 = 2% ZnSO4. The experiment was laid out in Randomized Complete Block Design (RCBD) with split plot arrangement and repeated thrice. Data regarding growth, yield and oil contents were collected by using standard procedures. Results revealed that sunflower hybrid Hysun-33 gained maximum plant height (210.67cm), stem diameter (2.427), head diameter (15.533) achene number (852), achene yield (189.19 t ha-1), leaf area (789.56cm2) and oil contents (40.423%) followed by sunflower hybrid S-278. Zinc application significantly improved the yield and oil contents. In this regard, maximum plant height (194.67 cm), stem diameter (2.718cm), head diameter (14.633 cm), achene number (842.17), achene yield (194.56 t ha-1), leaf area (782.5cm2) and oil contents (40.12%) from 2% foliar application of zinc followed by 1% foliar application of zinc. Whereas, minimum plant height, stem diameter, head diameter, achene number, achene yield, leaf area and oil contents were recorded from control where no zinc was applied. Interaction of sunflower hybrids with zinc was also significant. In this contest, maximum plant height (231.67cm), stem diameter (2.917cm), head diameter (15.7cm), achene number (925.0), achene yield (205.89 t ha-1), leaf area (801.33cm2) and oil contents (41.65%) were recorded from sunflower hybrid Hysun-33 with 2% application of zinc followed by sunflower hybrid S-278 with 1% zinc foliar application. In Conclusion, sunflower hybrid along with the 2% foliar application of zinc is the most suitable combination to achieve higher yield and oil contents.


2018 ◽  
pp. 141-147 ◽  
Author(s):  
Mehdi Taher ◽  
Ramazan Beyaz ◽  
Marieh Javani ◽  
Mehtap Gürsoy ◽  
Mustafa Yildiz

This study was conducted to evaluate the alterations of some morphological and biochemical parameters of sunflower cultivars (‘08-TR-003’, ‘TR-3080’ and ‘TARSAN-1018’) under salt stress. For this aim, the seedling of sunflower cultivars was irrigated with tap water as a control, and with salinised water with 50, 150 and 250 mM NaCl for 30 days under controlled conditions. Salinity caused an apparent reduction in morphological parameters (plant height, leaf area, fresh weight, dry matter and water content) in all cultivars. Salt stress significantly (P<0.01) reduced the activity of glutathione reductase (GR) and ascorbate peroxidase (APX) activities in all sunflower cultivars expect for superoxide dismutase (SOD) activity. According to our results, SOD seems to play a key role in the antioxidative process in salt treated sunflower plants. Proline and malondialdehyde contents were significantly (P<0.05) increased under salt stress in all cultivars. Among the cultivars, ‘TR-3080’ had greater values in terms of morphological (plant height, leaf area, fresh weight, water content) and biochemical [GR, APX and SOD (secondly) activities and proline contents] parameters. In the light of these findings, cv. ‘TR-3080’ seems to be less affected by salt stress.


2021 ◽  
Vol 3 (1) ◽  
pp. 49-61
Author(s):  
Shabir Hussain

The aim of study was to evaluate the influence of foliage applied zinc on growth, yield and oil contents of hybrid sunflower. Experimental treatments comprise of two sunflower hybrids viz. H1= Hysun-33 and H2= S-278 and three zinc levels viz. T1= Control (no application), T2=1% ZnSO4 and T3 = 2% ZnSO4. The experiment was laid out in Randomized Complete Block Design (RCBD) with split plot arrangement and repeated thrice. Data regarding growth, yield and oil contents was collected by using standard procedures. Results revealed that sunflower hybrid Hysun-33 gained maximum plant height (210.67cm), stem diameter (2.427), Head diameter (15.533) achene number (852), achene yield (189.19 t ha-1), leaf area (789.56cm2) and oil contents (40.423%) followed by sunflower hybrid S-278. Zinc application significantly improved the yield and oil contents. In this regard, maximum plant height (194.67 cm), stem diameter (2.718cm), head diameter (14.633 cm), achene number (842.17), achene yield (194.56 t ha-1), leaf area (782.5cm2) and oil contents (40.12%) from 2% foliar application of zinc followed by 1% foliar application of zinc. Whereas, minimum plant height, stem diameter, head diameter, achene number, achene yield, leaf area and oil contents were recorded from control where no zinc was applied. Interaction of sunflower hybrids with zinc was also significant. In this contest, maximum plant height (231.67cm), stem diameter (2.917cm), head diameter (15.7cm), achene number (925.0), achene yield (205.89 t ha-1), leaf area (801.33cm2) and oil contents (41.65%) were recorded from sunflower hybrid hysun-33 with 2% application of zinc followed by sunflower hybrid S-278 with 1% zinc foliar application. In Conclusion, sunflower hybrid along with the 2% foliar application of zinc is most suitable combination to achieve higher yield and oil contents.


2021 ◽  
Author(s):  
Godwin James Udo ◽  
Nnanake-Abasi O. Offiong ◽  
Alfreda Nwadinigwe ◽  
Clement O. Obadimu ◽  
Aniedi E. Nyong ◽  
...  

2021 ◽  
pp. 126276
Author(s):  
Ramla Rehman ◽  
Muhammad Ishtiaq Ali ◽  
Naeem Ali ◽  
Malik Badshah ◽  
Mazhar Iqbal ◽  
...  

2021 ◽  
Vol 13 (13) ◽  
pp. 7355
Author(s):  
Shivendra Kumar ◽  
Ramdeo Seepaul ◽  
Ian M. Small ◽  
Sheeja George ◽  
George Kelly O’Brien ◽  
...  

Brassica carinata (carinata) has emerged as a potential biofuel source due to its high erucic acid content, making it desirable for various industrial applications. Nitrogen (N) and sulfur (S) are required as primary sources of nutrition for growth and development in different oilseed crops and their utilization is interdependent. The purpose of the study was to analyze the interactive effect of N and S nutrition on the growth and other physiological activities of carinata and B. napus (napus). Four treatments, i.e., optimum NS (+N+S, 100% N and 100% S); N limited (−N+S, 0% N, 100% S); S limited (+N−S, 100% N, 0% S), and NS limited (−N−S, 0% N and 0% S) of N and S in full-strength Hoagland solution were imposed in the current study. Effect of different NS treatments was observed on vegetative traits such as number of primary and secondary branches, total leaf area, total biomass production and allocation, and physiological traits such as production of photosynthetic pigments, net photosynthesis, electron transport, and other aspects for both carinata and napus. The traits of stem elongation, number of nodes, node addition rate, internode length, number of primary and secondary branches were 60%, 36%, 50%, 35%, 56%, and 83% lower, respectively, in napus in comparison to carinata. Different NS treatments also positively influenced the production of photosynthetic pigments such as chlorophyll (Chl) a and b and carotenoids in carinata and napus. The concentration of Chla was 11% higher in napus in comparison to carinata. The rate of net photosynthesis, electron transport, and fluorescence was 12%, 8%, and 5% higher based on overall value, respectively, in napus compared to carinata. On the other hand, the overall value for stomatal conductance decreased by 5% in napus when compared to carinata. Different growth-related traits such as vegetative (plant height, node number, internode length, leaf area, number of primary and secondary branches), reproductive (pod number, pod length, seeds per pod), and photosynthetic capacity in oilseed brassicas are correlated with the final seed and oil yield and chemical composition which are of economic importance for the adoption of the crop. Thus, the analysis of these traits will help to determine the effect of NS interaction on crop productivity of carinata and napus.


Plant Methods ◽  
2014 ◽  
Vol 10 (1) ◽  
pp. 9 ◽  
Author(s):  
Dimitrios Fanourakis ◽  
Christoph Briese ◽  
Johannes FJ Max ◽  
Silke Kleinen ◽  
Alexander Putz ◽  
...  

2013 ◽  
Vol 5 (2) ◽  
pp. 371-381 ◽  
Author(s):  
K. K. Paul ◽  
M. A. B. Miah

An investigation has been made to characterize the local accessions of Elephant foot yam collected from thirteen aroid growing districts and in-depth study on genetic variability, correlation and path coefficient for plant height, petiole length, petiole breadth, leaf area index, corm length, corm breadth, corm weight, cormel number, cormel length, cormel breadth, cormel weight and yield per plant has also been carried out. Genotypic variances and coefficient of variation for most of the characters were remarkably higher than their corresponding environmental variances, which also indicate the existence of variation in genotypic origin. High heritability with high genetic advance in percentage of mean was also observed for all characters. In the correlation study plant height, leaf area index, corm length, corm breadth, corm weight, cormel number, cormel length, cormel breath showed positive correlation with yield per plant in genotypic and phenotypic level. Leaf area index, cormel number in phenotypically and cormel number in genotypic level showed relatively high positive direct effect on yield per plant.Keywords: Amorphophallus; Genetic variability; Correlation; Path coefficient.© 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v5i2.13853        J. Sci. Res. 5 (2), 371-381 (2013)


2015 ◽  
Vol 17 (12) ◽  
pp. 2022-2033 ◽  
Author(s):  
Tiantian Shen ◽  
Yongrui Pi ◽  
Mutai Bao ◽  
Nana Xu ◽  
Yiming Li ◽  
...  

The biodegradation rate of crude oil by semi-coke immobilized microbial consortia was higher than that by free microbial consortia.


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