Effects of foliar application of methanol on some physiological characteristics of Lavandula stoechas L. under NaCl salinity conditions     

Rana Valizadeh-Kamran  Lamia Vojodi Mehrabani 《Journal of plant nutrition》2019,42(3):261-268

In order to study the effects of foliar applications of methanol (0, 15, and 30%) and NaCl salinity (0, 50, and 100?mM) on some physiological characteristics of Lavandula stoechas L. plants, a pot experiment was carried out at the Research Greenhouse of Azarbaijan Shahid Madani University. Physiological characteristics (stem and leaf dry weights, total phenolic and flavonoids compounds, chlorophyll a and K⁺ contents, and K⁺/Na⁺ ratio) were significantly affected by the interaction effects of Methanol foliar application and salinity levels. The highest K⁺ content, K⁺/Na⁺ ratio, chl a and stem dry weight, belonged to NaCl 0?×?Methanol 30% and NaCl 50?×?Methanol 30%. For the leaves’ dry weight, the greatest data were recorded for NaCl 0?×?Methanol 30% and NaCl 0?×?methanol 15%. Methanol spray promoted the total phenolic content, especially at NaCl 50?×?methanol 30% and NaCl 100?×?methanol 15% and 30% and flavonoid content at NaCl 50?×?methanol 30%. Anthocyanin content, essential oil percent, and flower dry weight were affected by NaCl salinity levels, and the highest amount of anthocyanin was recorded for the control treatment. The highest data for Essential oil was attained by the NaCl 0 and 50?mM. The Na⁺ content was affected by methanol foliar application and the highest amount was obtained in the control treatment. Both foliar application levels and salinity levels influenced the flower dry weight. The highest amount of the flower dry weight was recorded at 30% methanol spray level and 0?mM NaCl treatments. The results reveal that methanol application had significant effects on the physiological characteristics of Lavandula plants growing under salinity stress condition.  相似文献   

Exploratory analysis of structural diversity indicators at stand level in three Italian beech sites and implications for sustainable forest management     

Giada Bertini  Claudia Becagli  Ugo Chiavetta  Fabrizio Ferretti  Gianfranco Fabbio  Luca Salvati 《林业研究》2019,(1):121-127

The present study introduces an exploratory data analysis based on structural indicators with the aim to assess the effect of silvicultural practices on tree stand structure. The study was carried out in three Italian beech forests of different ages with stand structures that originated from dissimilar regeneration and cultivation techniques(Cansiglio, northern Italy, Chiarano, central Italy,and Mongiana, southern Italy). Ten structural indicators were considered when investigating the latent multivariate relationship between stand structure attributes before and after thinning operations by using a multiway factor analysis(MFA). The MFA results identified the older stand at Cansiglio as more homogeneous for cultivation regimes,and more stable to practices when compared with the younger sites(Chiarano and Mongiana). Heterogeneous stands were sensitive to silvicultural practice thus suggesting their possible impact on forest attributes. The proposed approach proved to be an operational tool to evaluate comprehensively the response of forest structure to planned interventions.  相似文献   

Analysis of genetic diversity among wild pomegranates in Western Himalayas,using PCR methods   总被引：1，自引：0，他引：1  

Diganta Narzary  Kamalesh S. Mahar  T.S. Rana  S.A. Ranade 《Scientia Horticulturae》2009

The genus Punica (Punicaceae) is distributed in Iran, Afghanistan, India and Mediterranean countries. Iran is considered to be its primary center of origin. In India Punica granatum is found in wild only in Western Himalayan regions comprising, Jammu and Kashmir, Himachal Pradesh and Uttarakhand states. However, there is little information available about the genetic variation present in pomegranates in the regions. In this paper we describe the use of DAMD and RAPD methods that generate the profiles, to study genetic diversity in wild genotypes of the P. granatum in India. Forty-nine accessions representing two regions of Western Himalaya were analyzed. Similarity coefficient value varied from 0.08 to 0.79 across different accessions. The results indicate that DAMD (97.08%) revealed more polymorphism in comparison to RAPD (93.72%). The results show that these methods are sufficiently informative to unravel the genetic variations in wild pomegranates in Western Himalayas.  相似文献   

Multiple anthelmintic resistance in a field strain ofHaemonchus Contortus in goats     

R. P. Uppal  C. L. Yadav  P. Godara  Z. S. Rana 《Veterinary research communications》1992,16(3):195-198

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Development and characterization of monoclonal antibodies against FMD virus type Asia-1 and determination of antigenic variations in the field strains   总被引：2，自引：0，他引：2  

Rana SK  Bagchi T 《Veterinary immunology and immunopathology》2008,122(3-4):241-249

Twelve mouse monoclonal antibodies (MAbs) were developed against an Indian vaccine strain of foot and mouth disease virus (FMDV) type Asia-1 WBN 117/85. The MAbs were tested for their ability to bind to whole virus particle, trypsin-treated 146S (TT-146S) virus particle, sub-viral (12S and disrupted virus) antigens by ELISA and to neutralize virus infectivity in cell culture. Extensive characterization of MAbs revealed the existence of three different groups based on the binding of non-overlapping epitopes. Eight type Asia-1 specific MAbs (RF7, RF8, RD10, RE11, RC11, RC10/O, RB11 and RC10/M), which formed group 1 (G1), were found to bind a neutralizing, trypsin-sensitive (TS) and conformational epitope. Two MAbs (WB8 and WC3) in group 2 (G2) were found to bind a non-neutralizing, trypsin-resistant, conformational and 12S-specific epitope, which was intertypically conserved in all the four serotypes of FMDV (O, A, C and Asia-1) prevalent in India. Two MAbs (KG10 and KF10), which formed group 3 (G3), were found to be against a non-neutralizing, TS and conformational epitope, common to types Asia-1 and A. Members of G1 were IgG2a isotype, while those of G2 and G3 were IgG1 and IgG2b isotypes, respectively. Antigenic analysis of 31 FMDV type Asia-1 field isolates and two vaccine strains, using a panel of type Asia-1-specific MAbs, revealed antigenic similarity of the virus isolates tested and non-existence of neutralization escape mutants. The developed MAbs have practical utility, especially in the manufacture of FMD vaccine, diagnosis and FMDV characterization.  相似文献   

Erratum to: Dietary choline, betaine and lecithin mitigates endosulfan-induced stress in Labeo rohita fingerlings     

Neeraj Kumar  S. B. Jadhao  N. K. Chandan  R. S. Rana 《Fish physiology and biochemistry》2013,39(2):413-413

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Effectiveness of two insect growth regulators against Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) and Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) and their impact on population densities of arthropod predators in cotton in Pakistan     

Gogi MD  Sarfraz RM  Dosdall LM  Arif MJ  Keddie AB  Ashfaq M 《Pest management science》2006,62(10):982-990

Field efficacies of two insect growth regulators (IGRs) at two recommended application rates, buprofezin at 370 and 555 g AI ha(-1) and lufenuron at 37 and 49 g AI ha(-1), were determined against the sweet potato whitefly, Bemisia tabaci (Gennadius), and the cotton bollworm, Helicoverpa armigera (Hübner), in experimental plots of cotton at the Directorate of Cotton Research, Faisalabad, Pakistan. Adverse effects of the IGRs on populations of associated arthropod predators, namely geocorids, chrysopids, coccinellids, formicids and arachnids, were also assessed. Both IGRs significantly reduced populations of B. tabaci at each application rate 24, 48 and 72 h after treatment, and higher doses were more effective than lower doses. Buprofezin was not effective against H. armigera at any tested dose for any time of treatment in any spray. Lufenuron applied at 37 and 49 g AI ha(-1) effectively suppressed H. armigera populations, resulting in significant reductions in crop damage. At lower doses, both IGRs appeared safe to predator populations, which did not differ significantly in IGR-treated versus untreated control plots. Population densities of formicids and coccinellids were significantly lower at high concentrations of both IGRs in treatment plots, possibly as a result of reduced prey availability. The potential role of buprofezin and lufenuron for control of B. tabaci and H. armigera in a spray programme and the likelihood of direct toxic effects of IGRs on predatory fauna of cotton are discussed.  相似文献   

Erratum to: Methyl donors potentiates growth, metabolic status and neurotransmitter enzyme in Labeo rohita fingerlings exposed to endosulfan and temperature     

Neeraj Kumar  S. B. Jadhao  N. K. Chandan  Md. Aklakur  R. S. Rana 《Fish physiology and biochemistry》2013,39(2):415-415

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Genetic resources of wild edible plants and their uses among tribal communities of cold arid region of India     

J. C. Rana  K. Pradheep  O. P. Chaurasia  Sarvesh Sood  R. M. Sharma  Archna Singh  Ranjna Negi 《Genetic Resources and Crop Evolution》2012,59(1):135-149

This paper analyzes the diversity, consumption and gathering patterns, and uses of wild edible plants among the tribal communities living in cold arid region of Indian Himalaya. Eco-geographically, extremely cold climate, open vegetation, strong afternoon winds and loose soils characterize the region. Wild edible plants have special significance in the livelihoods of tribal people particularly during harsh winters when nothing grows on field. We gathered information on 164 wild edible plant species belonging to 100 genera and 37 families sharing 14% of total plants species occurring here. Around 83% plant species were present in pure wild state while 17% were in semi wild state/cultivated occasionally. Wild plants are eaten more as vegetable and it was found that out of 101 plants used as vegetable, 57 are cooked and eaten and the rest (44) eaten raw. The species like Pinus gerardiana, Prunus armeniaca, Hippophae rhamnoides, Bunium persicum are harvested more for commerce in the downtown markets while Lepidium latifolium, Taraxacum officinale, Urtica hyperborea, Capparis spinosa, Fagopyrum tataricum, Malva verticillata, and Rhodiola heterodonta are preferred for their medicinal and nutritional properties locally. Infrastructure development, more tourists flow, agricultural intensification, more jobs and business opportunities have led to rapid changes in the life styles and food habits of the people. Consequently, the age-old tradition of gathering wild edible plants is fading particularly among younger generations. Nevertheless, people do realize the importance of wild edible plants, and therefore to harness the benefits of this unique diversity participatory management and conservation programs, investigations on nutritional and pharmacological attributes, and regulated market support for some important WEPs have taken up in the region.  相似文献   

Designing artificial anterior cruciate ligaments based on novel fibrous structures     

J. Cruz  S. Rana  R. Fangueiro  R. Guedes 《Fibers and Polymers》2014,15(1):181-186

The present paper reports the development of novel braided structures using polyamide 6.6 fibers for application as artificial anterior cruciate ligaments (ACLs). The developed structures were circular braids, axially reinforced with either a number of core yarns or braided structures. Tensile behavior of these structures was characterized and the effects of number of axial yarns or braids and, the number of yarns used in the axial braids were thoroughly investigated. From the experimental results, it was observed that the braided structures with axial braids could mimic the load-elongation behaviour of native ACL. The average breaking extension and strain at toe region were 30 % and 4.3 % respectively, which are in the range of native ACLs. The maximum breaking force and stiffness achieved with 7 axial braids, each produced using 6 yarns were 274 N and 13.5 N/mm respectively and, both breaking force and stiffess showed linear increase with the number of axial braids as well as number of yarns used in the axial braids. Therefore, it is possible to design an artificial graft using these novel braided sturctures with mechanical properties similar to that of native ACLs, through adjustment of these structural parameters, as these braided structures have much smaller diameter (0.5 mm) than native ACLs (11 mm).  相似文献