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http://hdl.handle.net/10603/330376
Title: | Introgression of urdbean anthracnose resistance and yield components involving Vigna mungo x V umbellata hybridization |
Researcher: | Bindra, Shayla |
Guide(s): | Mittal, Raj Kumari |
Keywords: | Life Sciences Plant and Animal Science Plant Sciences |
University: | Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya |
Completed Date: | 2016 |
Abstract: | Introgression of urdbean anthracnose resistance and yield components involving Vigna mungo x V. umbellata hybridization was carried out with the objective to develop inter-specific hybrids, study inheritance of urdbean anthracnose (Colletotrichum truncatum) resistance and nature and magnitude of gene effects for yield and its component traits. Inter-specific crosses were attempted between three genotypes each of V. mungo and V. umbellata to transfer genes for disease resistance and yield related traits. Inter-specific hybridization revealed the presence of pre-fertilization barriers; confirmed by the frequency of pod set and post-fertilization barriers as F1and#8223;s exhibited reduced germination and sterility. The frequency of inter-specific hybridization, radicle and plant production percentage, revealed the genotype specific response of both the species. Inheritance of anthracnose leaf spot under natural and artificial epiphytotic conditions in KUG-216 x HPBU-111, KUG-216 x Palampur-93 and IPU-05-13 x Palampur-93 indicated the involvement of single dominant gene for disease resistance. In parents; KUG-216 and IPU-05-13, test of allelism is suggested to determine whether the gene present in them is similar or not. Six-generations of four inter-varietal crosses (KUG-216 x HPBU-111, KUG-216 x Palampur-93, IPU-05-13 x HPBU-111 and IPU-05-13 x Palampur-93) were evaluated to derive information on nature and magnitude of gene effects for yield and its component traits. Scaling tests revealed inadequacy of additive-dominance model for all the traits indicating the presence of non-allelic interactions. Duplicate gene action was observed for six characters in KUG-216 x HPBU-111, five in KUG-216 x Palampur-93, one in IPU-05-13 x HPBU-111 and two in IPU-05-13 x Palampur-93 and complementary gene action for one character each in KUG-216 x Palampur-93 and IPU-05-13 x HPBU-111. Therefore, selection in later generations for duplicate gene action and early generation selection in complementary gene action involving intermatings in |
Pagination: | |
URI: | http://hdl.handle.net/10603/330376 |
Appears in Departments: | Department of Crop Improvement |
Files in This Item:
File | Description | Size | Format | |
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01-title page pdf..pdf | Attached File | 435.69 kB | Adobe PDF | View/Open |
02-certificate pdf..pdf | 292.32 kB | Adobe PDF | View/Open | |
03-acknowledgement pdf..pdf | 203.07 kB | Adobe PDF | View/Open | |
04-content page pdf..pdf | 349.1 kB | Adobe PDF | View/Open | |
05-abbreviations,plates,tables and figures etc.pdf..pdf | 429.75 kB | Adobe PDF | View/Open | |
06-chapter_i pdf..pdf | 405.52 kB | Adobe PDF | View/Open | |
07-chapter_ii pdf..pdf | 626.01 kB | Adobe PDF | View/Open | |
08-chapter_iii pdf..pdf | 3.24 MB | Adobe PDF | View/Open | |
09-chapter_iv pdf.pdf | 3.62 MB | Adobe PDF | View/Open | |
10-chapter_v pdf..pdf | 508.89 kB | Adobe PDF | View/Open | |
11-chapter_vi pdf..pdf | 401.14 kB | Adobe PDF | View/Open | |
80_recommendation.pdf | 754.25 kB | Adobe PDF | View/Open |
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