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Development and Identification of Novel Rice blast Resistant Sources and Their Characterization Using Molecular Markers

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Rice science 2015年第6期22卷 300-308页

作者： S.J.S.RAMA DEVI Kuldeep SINGH b.UMAKANTH b.vishalakshi P.RENUKA K.VIJAY SUDHAKAR M.S.PRASAD b.C.VIRAKTAMATH V.RAVINDRA bAbU M.S.MADHAV biotechnology Crop ImprovementIndian Institute of Rice ResearchIndian Council of Agriculture Research School of Agricultural biotechnology Punjab Agricultural University Plant Pathology Indian Institute of Rice ResearchIndian Council of Agriculture Research

To develop and characterize introgression lines for leaf and neck blast resistance, 326 introgression lines were developed using various accessions of six different AA genome wild species in the genetic background of elite Indian varieties like PRl14 and Pusa 44 and were screened for blast resistance. Stringent phenotyping coupled with genotyping using gene based markers led to the identification of four resistant introgression lines, which showed promising resistance and do not possess any of the tested genes. Furthermore, multi-location screening confirmed the field resistance of the four introgression lines to both leaf and neck blast. Molecular characterization of these introgression lines using genome-wide simple sequence repeat markers revealed the presence of small percentage of wild Oryza genome introgrssion. So these lines can be used for mapping and identification of novel leaf and neck blast resistance genes. Thus, these four introgression lines can be considered as new genetic resources for blast resistance.

关键词： rice blast resistance introgression line gene profiling wild species

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Navier Slip and Heat Transfer in a Nanofluid Due to a Stretching/Shrinking Sheet:An Analytical Study

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Fluid Dynamics & Materials Processing 2022年第5期18卷 1551-1567页

作者： A.b.vishalakshi U.S.Mahabaleshwar M.EL.Ganaoui R.bennacer Department of Mathematics ShivagangotriDavangere UniversityDavangere577007India Institut Universitaire de Technologie de Longwy Universitéde Lorraine 186 rue de LorraineCosnes et Romain54400France LMT/ENS-Cachan/CNRS/UniversitéParis Saclay Cachan94235France

This paper is devoted to the analysis of the heat transfer and Navier’s slip effects in a non-Newtonian Jeffrey fluid flowing past a stretching/shrinking *** nanoparticles,namely,Cu and Al_(2)O_(3)are used with a water-based fluid with Prandtl number *** slip flow is assumed to occur when the characteristic size of the flow system is small or the flow pressure is very *** using the similarity transformations,the governing nonlinear PDEs are turned into ordinary differential equations(ODE’s).Analytical results are presented and analyzed for various values of physical parameters:Prandtl number,Radiation parameter,stretching/shrinking parameter and mass transpiration for the flow and heat *** considered problem is relevant to various physical applications in the field of engineering,e.g.,the production of certain materials,the preparation of plastic and rubber sheets and glass *** is shown that the considered nanofluid increases the thermal *** nanoparticles act as a heater by increasing the solid volume fraction and thermal *** versa,they can act as a cooler if the strength of magnetic field is *** flow strength decreases by increasing the values of Deborah number.

关键词： Nanofluid navier’s slip radiation ordinary differential equations

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