Hikam, Saiful and Timotiwu, P.B. and Sudrajat, Denny (2017) THE SELECTION OF LOCAL GENETIC SOURCE RICE POPULATION DIFFERENTIATED BY THEIR GENETIC MARKERS IN LOWLAND AND UPLAND ORGANIC ENVIRONMENT. In: ISAE International Seminar 2017, 9-12 August 2017, Bandar Lampung.

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Abstract

In resolving the global decrease of water supply, the selection of rice population ought to be accomplished in lowland as well as upland environment. The rice population was selected from local genetic source (LGS) in Lampung, Indonesia in order to revive rice lines which have been marked obsolete along the way of the Green Revolution since 1960. The lines were differentiated by their expressed quantitative trait loci (QTL) as genetic marker responsible for increasing seed production. The study accomplished in a Randomized Complete-Block Design with three replicates in the Polytechnic Research Field, Bandar Lampung using the 4 LGS-QTL lines; and the best 3 upland-introduction lines and 2 National lines as control. Data analyses included: population performances, anova mean squares which will continue on to ranking of varieties and calculating of genetic variances, broad-sense heritabilities and coefficients of genetic variances; and correlations analysis among variables in determining effective strategies in cross-combining the rice lines. The results indicated that prospective lines of Local Genetic Source- Quantitative Trait Loci (LGS-QTL) lowland rice were PBBogor-Plant Height, Gendut-Grain Number, and Tewe-Grain Number having Milled-Dry Grain (MDG) yield > 6 t ha-1 to the extent of 1186.00, 766.70, and 1165.30 g m-2 equivalent to 11.86, 7.67, and 11.65 t ha-1, respectively. The prospective lines LGS-QTL for upland rice were PBBogor-Plant Height, Gendut-Grain Number, and Kesit-Plant Height having MDG yield > 4 t ha-1 to the extent of 430.10, 448.50, and 432.20 g m-2 equivalent to 4.30, 44.85, and 4.32 t ha-1, respectively. The LGS-QTL lines: PBBogor-Plant Height, Tewe-Grain Number, Gendut-Grain Number, Kesit-Plant Height and the National line Ciherang-Grain Number ranked the first in all populations were prominent to be parental lines to accumulate QTL. The lines PBBogor-Plant Height, Tewe-Grain Number, Gendut-Grain Number, and Kesit-Plant Height were prospective to be drafted to the Plant Variety Protection (PVP) Committee. Keywords: plant breeding, rice, genetic marker, local genetic source, quantitative trait loci, upland rice, lowland rice, plant variety protection

Item Type:	Conference or Workshop Item (Paper)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Agronomi dan Hortikultura
Depositing User:	Dr. Saiful Hikam
Date Deposited:	07 Nov 2017 02:03
Last Modified:	07 Nov 2017 02:03
URI:	http://repository.lppm.unila.ac.id/id/eprint/4764

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