Use of infrared thermography imaging for assessing heat tolerance in high and low iron pearl millet lines

In the arid regions of Asia and Africa, pearl millet serves as a staple source of dietary energy and mineral micronutrients for millions of people. These regions are more vulnerable to increased temperature. The availability of rapid and efficient screening tools based on the relevant non-destructive quantifiable traits would facilitate pearl millet improvement for heat tolerance. The objective of this study was to evaluate pearl millet lines with contrast micronutrients for heat tolerance using infrared thermal imaging, a rapid proxy-canopy (panicle and flag leaf) temperature measurement. Results showed the highly significant genotypic differences between high-Fe and low-Fe genotypes for grain Fe and Zn densities and agronomic traits. Both high-Fe and low-Fe group genotypes differed significantly for panicle temperature depression (PTD) during high- vapor deficit (VPD) at stigma stage (3.0 to 6.73°C). PTD values were positive across all genotypes during stigma stage and were very low or negative during the low-VPD. Cooler canopy temperature (high-PTD) was observed during stigma stage rather than seed-set stage at higher-VPD in both high-Fe and low-Fe genotypes. The cooler temperature achieved by panicle might be helpful in maintaining stigma receptivity for longer periods in the female parents, whereas in male parents it might be helpful in maintaining pollen viability for longer periods. Flag leaf temperature (FTD) was cooler than PTD at both high-VPD and low-VPD as well in both stigma (less by 2.1°C) and grain-filling stage (less by 2.7°C), again signifying that the reproductive parts are more prone to heat stress as compared to vegetative parts. Since, thermal imaging discriminates the heat stress and non-stress canopies, this can serve as a proxy canopy temperature tool for heat stress tolerance screening in pearl millet

Nanotubes and nanowires

Synthesis and characterization of nanotubes and nanowires constitute an important part of nanoscience since these materials are essential building units for several devices. We have prepared aligned carbon nanotube bundles and Y-junction nanotubes by the pyrolysis of appropriate organic precursors. The aligned bundles are useful for field emission display while the Y-junction nanotubes are likely to be useful as nanochips since they exhibit diode properties at the junction. By making use of carbon nanotubes, nanowires of metals, metal oxides and GaN have been obtained. Both the oxide and GaN nanowires are single crystalline. Gold nanowires exhibit plasmon bands varying markedly with the aspect ratio. GaN nanowires show excellent photoluminescence characteristics. It has been possible to synthesise nanotubes and nanowires of metal chalcogenides by employing different strategies

Covid – 19 Pandemic And Primitive Kurumba Tribes In Nilgiris District Of Tamil Nadu – A Theorietical Perspectives

The tribal community is the most economically backward and vulnerable population in the country. Their backwardness is in addition difficult by their deprived health indicators and status. Health is an significant factor in social development. It seems that the fruits and benefits of progress have not reached to this section of the society properly. The health situation of tribal community is in a state of a immense crucial and wretched state of affairs in spite of the government’s vast efforts and apprehension for this immature section of the society. The present paper mainly concentrate on the COVID – 19 Pandemic and its impact on Kurumba tribal community in Nilgiris district. A systematic review is done to understand the impact of COVID – 19 on health of Kurumba tribal communities in Nilgiris at large. It is exposed from the review of literature that tribe and their health status is very depressed and require a systematic policy intervention to revitalize and cure the health condition of the respondent in the study are

Maternal inheritance for grain iron and zinc densities in pearl millet

Genetic variation and inheritance of micronutrients in pearl millet has largely been studied in recent years as part of biofortification initiatives. In this study, maternal (reciprocal) effect on inheritance of grain Fe and Zn was studied using a set of diverse breeding material. Entries were paired for low and high for Fe density to produce direct and reciprocal crosses. Over two-seasons, Fe density among parents varied 31-64 mg kg–1 and Zn density varied 28-43 mg kg–1. Difference between each direct and reciprocal crosses for Fe (1 to 4 mg kg–1) and Zn (0 to 2 mg kg–1) were negligible and non-significant, hence cytoplasmic or maternal genes are not likely to modify inheritance of these traits. These results indicate that high Fe/Zn inbred can be used either as female or male parent in hybrid-parent breeding program

Zirconia nanotubes

Hollow nanotubes of zirconia as well as of yttria-stabilized zirconia are successfully prepared by first coating the carbon nanotubes appropriately with the oxidic material and then burning off the carbon of the template

Improved synthesis of carbon nanotubes with junctions and of single-walled carbon nanotubes

Pyrolysis of thiophene over nickel nanoparticles dispersed on silica is shown to yield Y-junction carbon nanotubes with smaller diameters than those obtained by the pyrolysis of organometallic-thiophene mixtures. In the presence of water vapour, the pyrolysis of organometallic-hydrocarbon mixtures yields single-walled nanotubes, as well as relatively narrow-diameter carbon nanotubes with Y-junctions. Pyrolysis of organometallic-hydrocarbon mixtures, in the absence of water vapour, only gives nanotubes with T- and Y-junctions

Crystal structure of ethyl (2S,2′ R)-1′-benzyl-3-oxo-3H-dispiro[1-benzothio-phene-2,3′-pyrrolidine-2′,11″-indeno-[1,2-b]quinoxaline]-4′-carboxylate

The authors thank the TBI X-ray facility, CAS in Crystallography and BioPhysics, University of Madras, Chennai, India, for the data collection.Peer reviewedPublisher PD

Knowledge, Awareness, Attitude And Purchasing Decision Making Behaviour Among Women Towards Gold Jewellery In Vellore City – An Assessment

Society is diversified in all aspects. We see this among consumers, marketers, producers and even among consumer behavior from theoretical aspects. A decade has elapsed since the onset of the millennium and there have been many changes occurring across global economics which has had its repercussions on the Indian economy. Since the time of the liberalization of our economy Indian market has been greatly influenced by the global economy and global markets. From prehistoric times people all over the world have exposed special interest in gold jewels either for ownership or prestige or status. Passion for jewels is renowned. It is reflected in numerous customary occasions where it is not only measured promising but mandatory to gift Jewels crafted in gold. The bride’s trousseau is incomplete without the gold Jewels. It is evident that people demand for gold even though the pricesarehigh,expectingforthefuture increase. This is due to the expectation of more returns at the time of resale. This research study helps to comprehend the preferences of women towards gold Jewels; awareness about branded jewellery; and which factor mainly influenced the women to buy gold Jewels. This study also helps jewellery marketers to explore the strategies to be adopted for uplifting the market to plan for launching new brands and suggests ways to stay in touch with customers. Therefore this research paper give more importance to study the knowledge, awareness, attitude and purchasing decision making behaviour among women towards Gold Jewellery in Vellore City