Inheritance of fresh seed dormancy in recombinant inbred lines (RIL) developed for mapping population TAG 24 x GPBD 4 in groundnut (Arachis hypogeal L.)

DOI: 10.18805/lr.v0iOF.9383    | Article Id: LR-3435 | Page : 844-846
Citation :- Inheritance of fresh seed dormancy in recombinant inbred lines (RIL) developed for mapping population TAG 24 x GPBD 4 in groundnut (Arachis hypogeal L.) .Legume Research-An International Journal.2016.(39):844-846

Y.B. Naganagoudar*, P.V. Kenchanagoudar, Santosha Rathod1, C.M. Keerthi2, H.L. Nadaf and  B.B. Channappagoudar

yallurajgouda@gmail.com
Address :

Department of Genetics and Plant Breeding, University of Agricultural Science, Dharwad – 580 005, India.

Submitted Date : 10-02-2015
Accepted Date : 1-10-2015

Abstract

Pre harvest sprouting in groundnut (Arachis hypogaea L.) seeds belonging to sub species fastigiata is undesirable, since it leads to substantial loss of seeds, both in quantity and quality. This study was conducted to determine the inheritance of fresh seed dormancy in mapping population of TAG 24 x GPBD 4, where in 268 RILs developed from this mapping population. Freshly harvested seeds of mature pods from these RILs were assessed for this dormancy by paper towel test method in laboratory.  In the mapping population developed from TAG 24 x GPBD 4, the chi square (c2) test was not significant for the deviation from the expected 3:1 (dormant: non-dormant) ratio. Here it fitted in the 15:1 (non-dormant: dormant) ratio at 14 days after harvest (< 70%). This study showed that seed dormancy in this mapping population was controlled by duplicate recessive gene.

Keywords

Chi-square test Dormancy Groundnut RIL.

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