eprintid: 6268 rev_number: 8 eprint_status: archive userid: 19 dir: disk0/00/00/62/68 datestamp: 2012-12-05 10:07:48 lastmod: 2014-02-07 05:40:42 status_changed: 2012-12-05 10:07:48 type: article metadata_visibility: show contact_email: Library-ICRISAT@CGIAR.ORG creators_name: Dwivedi, S L creators_name: Singh , R B icrisatcreators_name: Dwivedi, S L affiliation: Banaras Hindu University(Varanasi) affiliation: ICRISAT(Patancheru) country: India title: Population improvement in wheat ispublished: pub subjects: s2.3 full_text_status: restricted abstract: Biparental progenies (North Carolina Design II) derived from F2s produced separately from normal parents and the same parents treated with EMS (0⋅4%) were analysed for estimating components of genetic variances for yield and certain yield components in bread wheat. Additive genetic variance constituted the major source of variation for all the component characters except tillers/plant which along with yield showed greater importance of dominance component. Diversity of parents influenced the estimates; genetic variances were higher in the cross which involve diverse parents. Mutagen treatment increased the additive genetic variance for all the characters except test weight whereas nonadditive genetic variance varied in a random fashion. In self pollinated cross, such as wheat, it is encouraging that additive genetic variance were predominant and thus could be exploited most effectively by resorting to population improvement approach date: 1980 date_type: published publication: Indian Journal of Genetics and Plant Breeding volume: 40 number: 3 publisher: Indian Society of Genetics and Plant Breeding pagerange: 585-592 refereed: TRUE issn: 0019-5200 official_url: http://indianjournals.com/ijor.aspx?target=ijor:ijgpb&volume=40&issue=3&article=019 related_url_url: http://scholar.google.co.in/scholar?as_q=Population+improvement+in+wheat&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&btnG=&hl=en&as_sdt=0%2C5 related_url_type: pub citation: Dwivedi, S L and Singh , R B (1980) Population improvement in wheat. Indian Journal of Genetics and Plant Breeding, 40 (3). pp. 585-592. ISSN 0019-5200 document_url: http://oar.icrisat.org/6268/1/IJGPB_40_3_585-592_1980.pdf