Silver Leaf Research Articles

A narrative review of risk factors and interventions for cancer-related cognitive impairment.

Cancer-related cognitive impairment (CRCI) refers to a series of cognitive impairment symptoms associated with alternations in brain structure and function, caused by a non-central nervous system malignant tumor and its related treatment. CRCI may present as memory loss, impaired concentration, difficulty in multitasking and word retrieval, and reduced comprehension speed. CRCI has become one of the prevalent factors that compromise the quality of life for cancer survivors. Different treatments, including surgery, chemotherapy, radiotherapy, endocrine therapy, and targeted drugs, may contribute to CRCI. Meanwhile, patients’ factors, including emotional challenges and genetic makeup, also contribute to the development of CRCI. The condition can be treated with using stimulants methylphenidate and modafinil, metabolites of nicotine: cotinine, antidepressants of fluoxetine and fluvoxamine, dementia drug of donepezil, and antioxidants ZnSO4, n-acetyl cysteine, propofol, and Chinese herbal of silver leaf medicine. Psychotherapies, including meditation and relaxation, cognitive rehabilitation training, along with physical therapies, including aerobic exercise, resistance training, balance training, yoga, qigong, tai chi electroencephalogram biofeedback, and acupuncture, are also beneficial in alleviating cancer-related cognitive impairment symptoms. In recent years, researchers have focused on factors related to the condition and on the available interventions. However, most research was conducted independently, and no review has yet summarized the latest findings. This review details and discusses the status of related factors and potential treatments for CRCI. We also supply specific recommendations to facilitate future research and integration in this field.

Effect of Feeding Graded Levels of Wild Silver Leaf Desmodium (Desmodium Uncinatum) on Growth and Bodyweight Change of Horro Sheep Fed Basal Diet of Natural Pasture Hay

Effect of Feeding Graded Levels of Wild Silver Leaf Desmodium (Desmodium Uncinatum) on Growth and Bodyweight Change of Horro Sheep Fed Basal Diet of Natural Pasture Hay

Management of the aphid, Myzus persicae (Sulzer) and the whitefly, Bemisia tabaci (Gennadius), using biorational on capsicum under protected cultivation in India

The peach aphid, Myzus persicae (Hemiptera: Aphididae) and silver leaf whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae) are the major pests of capsicum under protected cultivation. The entomopathogenic fungi (EPF) are environmentally safe than the chemical pesticides. In the present study, different EPF formulations, Beauveria bassiana Balsamo (Vuillemin), Lecanicillium lecanii (Zimmerman) Viegas, Metarhizium anisopliae (Metschnikoff) Sorokin, were evaluated along with Azadirachtin 1% for the management of the aphid and the whitefly on capsicum under protected conditions. Result showed that talc formulation of L. lecanii MTCC 956 at 10 and 12 g/l caused 60.5 and 61.6% population reduction for aphid and 60.0 and 61.6% population reduction for whitefly, whereas Azadirachtin 1% at 4 and 5 ml/l caused 71.2 and 74.7% population reduction for aphid and 68.5 and 71.0% population reduction for whitefly after 3rd spray, respectively and were effective in reducing aphid and whitefly populations on capsicum recommending its organic production under protected cultivation and could be a part of integrated pest management program.

“Argento Deaurato” or “Argento Biancheggiato”? A Rare and Interesting Case of Silver Background in Italian Painting of the XIII Century

The painting depicting the “Virgin with the Child and two angels” by a Tuscan anonymous artist of the XIII century, has raised great interest regarding the execution technique including the use of silver, applied on wood as a background. An in-depth investigation was carried out especially concerning the burnishing process of the silver leaves as well as a detailed inspection of the nature of the organic compounds over the metal leaf and the degradation products of the silver layer. To this aim, a multianalytical approach was used including UV–VIS microscopy along with an Ultra-High-Resolution Scanning Electron Microscopy (UHR-SEM), as well as Fourier Transform Infrared (FTIR), fluorescence and micro-Raman spectroscopies. As a result, the presence of an oil-resin varnish layer in the uppermost layer and a wax-protein layer between the varnish and the metal layer as well as the evidence that the silver leaf was applied with high accuracy directly to the preparation layer, were clearly demonstrated. Furthermore, degradation products of the silver leaf were identified as sulphides, chlorides, and oxides. The holistic approach herein adopted enabled a step forward in the knowledge of the 13th century silver leaf gilding technique, adding value to the originality of this artwork. In this respect, the scientific evidence led to the assumption that likely this painting originally showed a silver-colored background (“argento biancheggiato”) as compared to the initial theory of a case of “argento deaurato”.

Investigation of Varietal Characteristics of Tomato Plants for Determining the Diverse Preferences of Bemisia Tabaci (Aleyrodidea: Hemiptera)

The whitefly (Bemisia tabaci) is a well-known pest of vegetables and ornamental cash crops including tomato plant. Tomato plant disorders, in many instances, are related mostly with the silver leaf whitefly (Bemisia tabaci) feeding. It is well thought out that tomato plant is one of the most favorable host plants for the whitefly. Thus we aimed to study distinctive morphological characteristics of the leaves in seven selected tomato varieties including trichome density, trichome length, leaf lamina thickness and RGB value (red, green, blue) and HSB value (hue, saturation, brightness). Seven hybrid F1 tomato varieties such as TO-1057, TAI-1757, T‑1359, Advanta-1247, New Super, Sultan and Super were tested for the whitefly preferences. Our study suggests that T‑1359 is the highly preferred variety for the whitefly adults (5.32 ± 0.81) and nymphs (6.30 ± 1.13) population. In contrast, Advanta-1247 exhibits the lowest population of whitefly adults (2.71 ± 0.70) and nymphs (1.88 ± 0.43). This study systematically identifies the morphological characters of the tomato plants alongside the whitefly population. The study can be potentially extended to other crops as well.

Nanoporous gold peel-and-stick biosensors created with etching inkjet maskless lithography for electrochemical pesticide monitoring with microfluidics

Flexible nanoporous gold and silver leaf are patterned without photolithography and adhered to microfluidics to create disposable multiplexed electrochemical biosensors.

IPM approach against major pests of paddy

The pooled results revealed that the cholrantraniliprole was the most effective insecticide against major pests of rice with yellow stem borer showing 5.15% dead and 14.37% white ears; gall midge, 1.82% silver shoot and leaf folder exhibiting 1.33% leaf damage, respectively and recording highest grain yield of 2,899 kg/ha amongst treatments. Among the plant oils, eucalyptus was found effective against stem borer with low incidence of dead hearts (4.96%) and camphor oil was effective against whorlmaggot (0.69% damaged leaves) and stem borer (19.59% white ear). Incidence of gallmidge (5.38% silver shoot) and leaf folder (14.18% damaged leaves) was lower in neemazal treated plots respectively.

Сонетний вірш Максима Рильського: структурно-композиційна і мовно-образна організація

The systematic organization of Maxym Rylskyi’s sonnet verse is characterized by the dynamics of figurative creation, which begins in the first quatrain and, as a rule, preserves the “rise line” in the second quatrain in order to echo the synthesis in the final thirds. Thus, in the sonnet «The ax trembles, the silver darkened” two lines ─ the trembling sedge, which rises high with the darkened silver leaf, and the benefit of the green shadow from it for the weary, aching human body ─ in the first quatrain they seem to run in parallel. However, already in the second quatrain, probably, from the same trembling ax the appeal of the lyrical hero to the heart sprouts (Tremble, develop and wormwood!). The synthesis-generalization initiated by the replica of the heart (internal monologue) continues the associative parallel of nature and man in the first third (On the branch of universal wood. You are only a particle, line one!) ─ both semantic lines marked at the beginning of the poem are now merged the only one. And finally the final concluding stanza ─ the assertion of this unity ─ earthly and high, when the only true dimension is the integrity of depth. Another structural organization is observed in the sonnet «In the warm days of grape harvest”, where the first stanza of the exposition reveals to the reader a lyrical location, which in the second quatrain unfolds in the dialogue of lyrical characters and is continued in the castle stanza by a generalizing line. , thus creating the overall compositional and artistic integrity of the poetic structure. In a number of texts the poet broadly reflects the idea of internal conflict at the junction of two quatrains, proclaimed at one time in the program sonnet of Ivan Franko, although the antithetical break can occur not only at the border of the first and second quatrains. the first part is an adverb yet). The whole sonnet is based on the features of such correlates. The textual permeability of repeating elements at different levels contributes to the dynamization of the artistic structure. In verse «Bring gifts to the gods! Transparent honey bear ”repetition with an anaphoric conjunction and in each stanza (used more than ten times in the text) grows into a gradation of syntagms in the final stanzas.

Effect of Feeding Graded Levels of Wild Silver Leaf Desmodium (Desmodium uncinatum) on Feed Intake and Digestibility of Horro Sheep Fed A Basal Diet of Natural Pasture Hay

This experiment was conducted at Nedjo ATVET College with the objective of evaluating the effects of graded levels of wild silver leaf desmodium (Desmodium uncinatum) on feed intake, and digestibility, of Horro sheep fed a basal diet of natural pasture hay. Twenty intact male Horro sheep with intact milk teeth and an average initial weight of 18.28±1.47 kg (mean± SD) were used. The experiment consisted of 7 days of digestibility trial and 90 days of feeding trials. The experimental sheep were blocked into 5 blocks of 4 animals based on initial body weight and randomly assigned to one of the four treatments within a block. The treatments were natural pasture hay ad libitum (DU 1 ) and wild silver leaf desmodium supplement at levels of 200(DU 2 ), 300(DU 3 ), 400(DU 4 ) g/head/d on dry matter bases. The basal diet had DM, CP and OM of 91.2, 75.5 and 9.3, respectively while the corresponding values for Desmodium were 89.8, 77.8 and 16.8. Total dry matter intake (698, 725.4, 773.3 and 864 g/d in DU-0 , DU- 200, DU-300 and DU- 400 respectively) significantly increased with increasing level of Desmodium supplementation. Significantly higher (p<0.001) dry matter (DMD) (48, 68, 72 and 80% in DU-0 , DU- 200, DU- 300 and DU- 400 respectively), organic matter (OM) (48, 70, 74 and 82% in DU-0 , DU- 200, DU- 300 and DU-400 respectively), and crude protein (CP) (84, 88, 88 and 91% in DU-0 DU- 200 DU- 300 and DU- 400 respectively) digestibility were noted in this study. In this study among the levels of supplementation, 400 g wild silver leaf desmodium resulted in betterdry matter intake (DMI), and nutrient digestibility. Keywords: desmodium ,dry matter, Digestibility ,horro sheep DOI : 10.7176/JBAH/10-1-05 Publication date: January 31 st 2020

All edible materials derived biocompatible and biodegradable triboelectric nanogenerator

The energy crisis and plastic pollution are of growing concern worldwide. Nanogenerators converting mechanical energy to electrical energy would be of assistance. Triboelectric nanogenerators (TENGs) are inexpensive, simple to fabricate, and afford high output, as revealed by extensive research over the past decade. However, most TENGs use a polymer as either the substrate or the active layer, contributing to plastic pollution. Biodegradable/edible devices are required; they are harmless when discarded. We here derive a single-electrode lightweight TENG (E-TENG) using only edible materials. Laver coated with an edible silver leaf serves as the active layer and a rice sheet as the substrate. We analyzed surface potential, morphology, and roughness; laver was triboelectrically active. The results of the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, cell imaging, and 4′,6-diamidino-2-phenylindole (DAPI) staining suggest that the device minimally affected cell viability. The device was bioresorbable in phosphate-buffered saline (PBS) and gastric acid. Output performance was tested using paper, tissue paper, polyvinyl chloride (PVC), and fluorinated ethylene propylene (FEP). The electrical performance was systematically studied; an FEP-laver E-TENG performed best (output of 23 V and current of 315 nA). The output was used to power a hygrometer, a wristwatch, green light-emitting diodes (LEDs), and ultraviolet (UV) LEDs.

Exploring Manufacturing Process and Degradation Products of Gilt and Painted Leather

In this work, we studied the manufacturing processes and the conservation state of gilt and painted leather fragments from Palazzo Chigi in Ariccia (Italy) by using different analytical techniques. Leather fragments present a silver leaf superimposed onto leather support. A gold varnish and different painted layers decorate it all. A top-down analytical approach was used to investigate this complex multilayer structure, which adopted techniques with different sampling depths. Organic and inorganic constitutive materials together with related degradation products were studied by time of flight secondary ion mass spectrometry (ToF-SIMS), attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), and macro X-ray fluorescence (MA-XRF). The findings have revealed the presence of different elements and species as calcium and iron in the leather support, which was attributed to the un-hairing process in the leather tanning. Regarding what concerns the silver leaf, where the varnish cracked, silver chlorides, oxides, and sulfides were detected as degradation products of the silver leaf. Proteinaceous compounds were also identified where the silver leaf is unprotected by the varnish. These ion signals reveal a potential use of animal glue on both sides of the silver leaf to promote durable adhesion. In the gold varnish, the surface analysis revealed organic compounds such as resins and oils. In particular, the copresence of linoleic, arachidonic, and lignoceric acid ion signals in the yellow area suggests the use of aloe as a colorant. Lead ions in the same area were detected and attributed to the use of lead as siccative. Blue areas were obtained by using indigo and lead white in addition to an oil binder. This is confirmed by the detection of indigotin, fatty acid, and lead soap ion signals. A copper-based pigment was used to depict the green areas and copper oxalates were identified as its degradation products. Lastly, no significant information about the red colorant was obtained. Colophony is present as a component of the final varnish.

Developmental effect of cashew nut shell extract against nymphal instar of Silver leaf Whitefly (Bemisia tabaci Genn.)

Cashew nut shell (CNS), which are one of the most still is tropical biomass waste. This study was aimed to test mortality rates of CNS extract against the first to third instar nymphs of Silverleaf Whitefly (Bemisia tabaci Genn.1889). The concentration of CNS extract were: 0.22 %, 0.67 %, 2.00 %, 6.00 %. The LC50 and LC90 values indicated that CNS extract at concentration of 2.00 % were the most toxic compound to the first instar stage followed by CNS extract at concentration of 6.00 %, 0.67 %, imidacloprit, and CNS at concentration of 0.22 %, respectively. The concentration of 6.00 % showed the most toxic effect to the second stage followed by CNS extract at concentration of 2.00 %, 0.67 %, imidacloprit, and CNS at concentration of 0.22 %, respectively. The lethal concentration (LC50−90) value of the CNS extract at concentration of 6.00 %, at concentration of 2.00 %, 0.67 %, imidacloprit, CNS extract at concentration of showed the toxicity against the third instar nymph. This CNS extract at concentration of 2.00 % could be used to suppress of the B. tabaci nymphs of different stages (first to third instar) and negative effect of phytotoxicity on the soybean leaves.

First Report of Silver Leaf Caused by Chondrostereum purpureum on Vaccinium corymbosum in Oregon.

First Report of Silver Leaf Caused by Chondrostereum purpureum on Vaccinium corymbosum in Oregon.

Silver paints in medieval manuscripts: a first molecular survey into their degradation

The lack of comprehensive studies on silver paints in manuscripts is a handicap to new stabilization strategies and treatments. This work develops and tests a methodological approach for the study of the degradation of silver paints, at the molecular level, using as a case study a French Book of Hours dated from the 15th century from Mafra National Palace collection. In this paper, we show that the global equation commonly used by the cultural heritage community to describe the tarnishing of silver proves to be insufficient to understand the main factor causing its severe and extensive darkening in medieval illuminated manuscripts. This equation depicts the degradation of silver instantly with a sulphide containing species as H2S. Recent research has solidly proved that the first intermediate of silver oxidation is Ag2O. This theme will be presented in a forthcoming review. Within this framework, we selected four typologies of silver paints, all analysed by in situ techniques and four as microsamples; due to the very small size and fragility of the microsamples, new methods of sample preparation were developed and tested. The main research questions include: (1) understanding how silver-based colour are formed, disclosing its full stratigraphy; (2) define if the other compounds present, such as colour paints and the ground, may affect silver oxidation by stabilizing or accelerating it; (3) comprehend if it is possible to characterize the degradation products of silver paints with the methodology developed in this work, both in the bulk and at the interfaces between layers. Overall our results show that silver-based colours exhibit a complex stratigraphy that impacts its conservation condition. Further research at the molecular level is required on the correlation of the main components of the ground (binder and filler such as gypsum and calcium carbonate) and the paints that are applied as layers over or under the silver leaf. Our case studies have shown that both in situ analytical techniques and scanning electron microscopy with energy dispersive spectroscopy analysis in the microsamples, provide relevant information on the silver colour stratigraphy. However, the information obtained studying cross-sections is more accurate. We consider that the study of the degradation mechanism of silver in medieval illuminated manuscripts will require the combination of both approaches; in situ methodologies support the relevance of the data acquired on the microsamples. Microsamples studies will make possible the acquisition of data that is fundamental to understand the darkening of silver paints and this, in turn, is essential to develop informed and sustainable conservation policies.

Effects of feeding different proportions of silver leaf desmodium (Desmodium uncinatum) with banana (Musa paradisiaca) leaf on nutrient utilization in Horro sheep fed a basal diet of natural grass hay.

ObjectiveThe objective was to evaluate feed intake, digestibility, body weight change and carcass characteristics of sheep fed a basal diet of hay supplemented with banana leaves and silver leaf desmodium.MethodsThirty yearling lambs with an average initial body weight of 15.85±1.6 kg were grouped into six blocks of five rams in each block. The treatments were: hay alone (T1), hay+ 100% banana leaf (T2), hay+67% banana leaf+33% desmodium leaf (T3), hay+33% banana leaf+67% desmodium leaf (T4), andhay+100% desmodium leaf (T5). Three hundred grams of treatment diets were offered daily on as fed basis. The feeding and digestibility trials lasted for 84 and 7 days, respectively, followed by carcass evaluation.ResultsThe total dry matter (DM) intake for T3, T4, and T5 were greater (p<0.05) than those fed T1 and T2 diets. The lowest (p<0.05) organic matter (OM) intake was recorded in rams reared on T1 diet. The total crude protein (CP) intake was in the following order: T5> T4>T3>T2>T1. Ram lambs receiving supplementary diets had higher (p<0.05) DM, OM, CP, neutral detergent fiber and acid detergent fiber digestibility compared with the control diet. The empty body weight and slaughter weight was highest (p<0.05) in rams receiving T3, T4, and T5 diets. The average daily gain and feed conversion efficiency was highest (p< 0.05) in rams receiving the supplementary diets. The dressing percentage on the basis of hot carcass weight linearly increased with increasing levels of desmodium. Rams reared on supplementary diet had higher (p<0.05) rib eye area compared with the control diet.ConclusionIn conclusion, when banana leaf is used as a supplement to poor quality grass, better body weight gain was obtained when fed in combination with desmodium.

Resistance of Collard Green Genotypes to Bemisia tabaci Biotype B: Characterization of Antixenosis.

Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae) is an important pest of vegetable crops, including collard greens Brassica oleracea var. acephala (Brassicaceae). The use of resistant genotypes is an interesting option to reduce insect populations and can be used as an important tool for integrated pest management (IPM). This study evaluated 32 genotypes of collard greens against the attack of silver leaf whitefly, with the aim to characterize antixenosis. Initially, a multiple-choice trial was conducted using all genotypes, in which the adult attractiveness was assessed on two leaves per genotype at 24 and 48h after infestation. After 48h, one leaf of each genotype was randomly selected for the determination of the number of eggs per square centimeter. From the results of the multiple-choice trial, 13 genotypes were selected for a no-choice oviposition test, following the same method of the previous test. Colorimetric analyses were also performed to establish possible correlations between leaf color and insect colonization. Genotypes HS-20, OE, and VA were less attractive, demonstrating antixenosis. Genotypes LG, VE, J, MG, MOP, HS-20, VA, and MT had less oviposition in the multiple-choice test, which indicated expression of antixenosis. In the no-choice test, genotypes VE, P1C, CCB, RI-919, H, and J had less oviposition, which also characterized antixenosis. Therefore, genotypes VE and J showed the highest resistance stability because both had less oviposition in both test modalities. Thus, the resistance to B. tabaci biotype B indicates the genotypes HS-20, OE, VA, VE, and J are promising for use in breeding programs to develop resistance to whitefly.

Investigation of the foil structure and corrosion mechanisms of modern Zwischgold using advanced analysis techniques

Abstract Zwischgold is a two-sided metal foil made by adhering a gold leaf over a silver leaf to present a gold surface while using less gold than gold foils. Corroded Zwischgold surfaces appear dark, accompanied by gloss loss and possible mechanical stability issues. Zwischgold applied artefacts are commonly found in museums and churches across Europe and they currently face an uncertain future as conservators have little knowledge to base conservation treatments on. We present a comprehensive material analysis of Zwischgold models through advanced characterization techniques including focused ion beam coupled with scanning electron microscopy (FIB-SEM), transmission electron microscopy (TEM), scanning transmission X-ray microscopy (STXM), time-of-flight secondary ion mass spectrometry (TOF-SIMS) and Rutherford backscattering spectrometry (RBS). Complementary information on the foil thickness, sharpness of the gold-silver interface, gold purity, and the formation as well as distribution of corrosion products on Zwischgold models have been obtained, representing a starting point for understanding the morphology and the long-term chemistry of Zwischgold artefacts.

Comparative transmission of Bhendi yellow vein mosaic virus by two cryptic species of the whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae).

The leaf sample from okra plants showing prominent yellow vein mosaic symptoms and healthy plant without any virus symptoms were collected from farmer's field. The presence of begomovirus in the infected sample was confirmed by polymerase chain reaction (PCR) and the amplicons were cloned and sequenced. The genome analysis showed that the isolate in the present study had 99% nucleotide identity with Bhendi yellow vein mosaic virus (BYVMV) revealing it as BYVMV variant. The genetic species of Bemisia tabaci collected from fields were identified as Asia-1 and MEAM-1 genetic species based on silver leaf assay, sequence characterized amplified region marker, and mtCOI gene sequence. The comparative virus-vector relationship of both genetic species of B. tabaci indicates a minimum of two and three B. tabaci in MEAM-1 and Asia-1 genetic species, respectively, per plant were required to transmit the disease. The minimum acquisition access period and inoculation access period of 15 (MEAM-1) and 20min (Asia-1) were required to transmit the YVMD; it was further confirmed by nucleic acid hybridization using coat protein gene-specific probe of BYVMV. With respect to the sex, the female B. tabaci were more efficient in transmitting the disease as compared to male ones in both the genetic species of B. tabaci. The MEAM-1 to transmit the BYVMV more efficiently than Asia-1 genetic species of B. tabaci.

Evaluation of several dessert cultivars of plum, new under climatic conditions of Poland

An experiment was established in the spring of 2006 in the Experimental Orchard in Dąbrowice (central Poland). The plum cultivars under assessment included: ‘Avalon’, ‘Edda’, ‘Excalibur’, ‘Jubileum’, ‘Mallard’ and ‘Reeves’. Trees of the cv. ‘Victoria’ were the control combination. On the basis of the eight-year study it was found that the most vigorously growing were trees of the cultivar ‘Excalibur’. The most susceptible to frost damage and infection by Chondrostereum purpureum (silver leaf) were trees of the cultivars ‘Edda’ and ‘Excalibur’. In addition, the cv. ‘Excalibur’ was characterized by high susceptibility to the Plum pox virus (sharka). The highest cumulative fruit yield was shown by the cultivar ‘Jubileum’. The worst fruiting were trees of the cultivar ‘Mallard’. Fruits of the cv. ‘Excalibur’ had the highest weight. The smallest were fruits of the cv. ‘Edda’ characterized by early ripening time. The highest amounts of soluble solids were contained in fruits of the cultivar ‘Avalon’. The cvs ‘Edda’, ‘Reeves’ and ‘Avalon’ proved suitable for cultivation in Polish climatic conditions.

Interspecific hybrid between silver leaf sunflower (Helianthus argophyllus T. and G.) and cultivated sunflower: Cytomorphological characterization of F1 hybrid

Hybrid plants were obtained by crossing cultivated sunflower (Helianthus annuus L., 2n=2x=34) lineARM-243B and a wild Helianthus species [H. argophyllus; 2n=2x=34; HEL-153/83 (PI-649865)], using the latter as pollen parent. The wild Helianthus accession was selected for this study because of its short duration and short plant height compared to other accessions of H. argophyllus. Morphological and cytological analyses were carried out to confirm the hybrid nature of the F1 plants. The hybrids exhibited morphological features intermediate to both the parents for few attributes and more related to wild Helianthus species like leaf and stem pubescence, stem hairiness, flower colour, stem size, branching, disc floret pigmentation, plant height, seed size and seed shape etc. A reduction in pollen fertility (87.5%) was recorded in F1 plants as compared to both the parents. Meiotic analysis revealed a mixture of univalents, bivalents, trivalents and quadrivalents in all the pollen mother cells (PMCs) analysed. In addition to bivalents and univalents, a trivalent was also observed in few PMCs, indicating segmental homology between chromosomes. Frequently observed chromosome configurations in diakinensis were 15 II + 1 IV and 13 II + 2 IV. The results suggested that the species H. argophyllus and H. annuus differ by 1-2 translocations and 1-2 inversions. Results show that the wild species is compatible with cultivated sunflower and using H. argophyllus cultivated sunflower can be improved for biotic (downy mildew) and abiotic stresses (drought and salinity).