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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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Subject: Agricultural Biotechnology × Author: Diliprao, Pote Tushar × End date: 2022 × Start date: 2020 ×
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    ThesisItemOpen Access
    Introgression of blast resistance and semi dwarfing gene sd1 in rice using marker assisted backcross breeding
    (Palampur, 2021-10-31) Diliprao, Pote Tushar; Rathour, Rajeev
    In present study two blast resistance genes Pi9, Pi54 and one semi-dwarfing gene sd1 were incorporated into a tall traditional basmati rice variety, ‘Ranbir Basmati’ from donor genotypes Pusa1637 (Pi9+sd1) and DHMAS164 (Pi54) using marker-assisted backcross breeding (MABB). Molecular marker based background analysis was combined with stringent phenotypic selection to achieve a maximum of 92.63% and 96.15% recovery of recurrent parent genome in progenies of crosses Ranbir Basmati*3 /Pusa1637 and Ranbir Basmati*3 /DHMAS164 after two backcrosses. Altogether sixteen pyramid lines homozygous for three target genes (Pi9+Pi54+sd1) were identified by foreground analysis of 1219 progenies derived from the intercross of elite BC2F1 recombinants of two crosses. These 16 lines were further advanced through pedigree selection in the field to select 39 stable ICF3 lines showing phenotypic similarity to Ranbir Basmati. All the lines were found to have reconstituted the recurrent parent alleles for genes and QTLs related to aroma and amylose content. Analysis of variance revealed sufficient variation among pyramid lines for different traits except panicle length, percent spikelet fertility and thousand grain weight. As many as 14 pyramid lines viz., RPL1-11-2, RPL1-90-1, RPL1-90-2, RPL1-90-4, RPL1-262-1, RPL1- 262-2, RPL1-495-1, RPL1-495-2, RPL1-559-1, RPL1-934-2, RPL1-1075-1, RPL1-1075-3, RPL1-1086-4 and RPL1-1121-2 were found to be significantly superior to Ranbir Basmati for yield. All the pyramid lines were highly resistant to leaf and neck blast compared to recurrent parent Ranbir Basmati on which a high incidence of leaf and neck was recorded. Five high yielding semi-dwarf pyramid lines, viz., RPL1-559-1, RPL1-934-2, RPL1-1075-1, RPL1- 1075-3 and RPL1-1121-2, showing high degree of resistance to blast and superior basmati quality attributes were identified as a possible substitute to Ranbir Basmati.