VARIABILITY AND HERITABILITY ESTIMATE OF 30 RICE LANDRACES OF LAMJUNG AND TANAHUN DISTRICTS, NEPAL

Anup Dhakal (Department of Agronomy, Plant Breeding and Agriculture Statistics, Institute of Agriculture and Animal Science, Tribhuvan University)
Shishir Sharma (Department of Agronomy, Plant Breeding and Agriculture Statistics, Institute of Agriculture and Animal Science, Tribhuvan University)
Amrit Pokhrel (Department of Agronomy, Plant Breeding and Agriculture Statistics, Institute of Agriculture and Animal Science, Tribhuvan University)
Ankur Poudel (Department of Agronomy, Plant Breeding and Agriculture Statistics, Institute of Agriculture and Animal Science, Tribhuvan University)

Indonesian Journal of Agricultural Science
Vol 21, No 1 (2020): June 2020

The variability in the rice landraces is the source of variation and offers substantial opportunity for the development of new varieties through the selection. Exploring diversity and variability of landraces is utmost for rice improvement. The objective of the study was to assess diversity indices, magnitude of genetic variability, heritability, genetic advance for the yield, and yield contributing traits. An experiment was carried out in alpha-lattice with 30 landraces, two replications in the Agronomy farm of IAAS, Lamjung Campus, during June-November, 2018. Shannon and Simpson's indices were calculated for 18 qualitative traits. The value of the Shannon and Simpson index ranged 0.15-1.41 and 0.07- 0.75, respectively. Landraces showed significant variations (p