eprintid: 9226
rev_number: 9
eprint_status: archive
userid: 1305
dir: disk0/00/00/92/26
datestamp: 2016-01-05 06:37:53
lastmod: 2016-01-05 06:37:53
status_changed: 2016-01-05 06:37:53
type: conference_item
metadata_visibility: show
creators_name: Naganagoudar, Y B
creators_name: Kenchangoudar, P V
creators_name: Motagi, B N
creators_name: Gowda, M V C
creators_name: Nadaf, H L
creators_name: Pujer, S
affiliation: Oilseeds Scheme, Main Agricultural Research Station, University of Agricultural Sciences (Dharwad)
affiliation: ICRISAT (Kano)
country: India
country: Nigeria
title: Evaluation of intensity and duration of seed dormancy in a recombinant inbred population derived from Spanish bunch genotypes
ispublished: pub
subjects: s1.3
divisions: D3
crps: crp1.5
full_text_status: public
pres_type: paper
keywords: Genotyping Tools, Groundnut, Peanut, Genetic Improvement, Genetics
note: The conference was organized by: The Peanut Foundation The Peanut Company of Australia
abstract: Pre- harvest sprouting in groundnut (Arachis hypogaea L.) seeds belonging to subspeciesjastigiara (Spanish
bunch) is undes irabl e. Since it leads to in vitro germination resulting in substantial loss of seeds, both in
quantity and quality. A short peri od of dormancy is therefore des irable in the sub-species to reduce such
losses. Evaluati on of fresh seed dormancy was conducted for two seasons to determine the intensity and
duration of dormancy in recombinant inbred population with 268 RILs developed from crosses involving
moderately dormant (GPBD-4) and non-dormant (TAG-24) parents. The intensity of dormancy ranged from
o to 100% in summer season while 0 to 90% in kharifseason. There was large vatiation in the intensity of
dormancy whi ch could be related to genetic di fferences between the entries tested. RIL nos. 165, 259, 160,
172,209,254,2 13,247, and 248 recorded very high values (> 70 %) of intensity of dormancy in both the
seasons. The vari ation for dormancy in terms of duration as revealed by germination of 70% (G 70
estimates) was subsequently large as compared to the intensity of dormancy among the RILs. The RIL nos.
5, 40, 84, 165, 183,209,2 13, 248, 254,259 and 265 were found to have more than two weeks of dormancy
(based on G70 count) in both the seasons. These dormant lines can be utilized in breeding for fresh seed
dormancy under Spani sh background.
date: 2015-11
date_type: published
pagerange: 22--
event_title: Proceedings of the 8th International Conference of the Peanut Research Community-Advances in Arachis through Genomics and Biotechnology (AAGB-2015)
event_location: November 4 - 7, 2015
event_dates: Brisbane, Australia
event_type: conference
refereed: TRUE
related_url_url: https://scholar.google.co.in/scholar?as_q=Evaluation+of+intensity+and+duration+of+seed+dormancy+in+a+recombinant+inbred+population+derived+from+Spanish+bunch+genotypes&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&btnG=&
related_url_type: pub
citation:   Naganagoudar, Y B and Kenchangoudar, P V and Motagi, B N and Gowda, M V C and Nadaf, H L and Pujer, S  (2015) Evaluation of intensity and duration of seed dormancy in a recombinant inbred population derived from Spanish bunch genotypes.  In: Proceedings of the 8th International Conference of the Peanut Research Community-Advances in Arachis through Genomics and Biotechnology (AAGB-2015), Brisbane, Australia, November 4 - 7, 2015.     
document_url: http://oar.icrisat.org/9226/1/Intensity%20%20duration%20of%20dormancy%20in%20RIL%20population%20of%20groundnut-AAGB%202015.pdf