GENETIC VARIABILITY, HERITABILITY AND CORRELATION IN F2 SEGREGATING GENERATION FOR AGRONOMIC TRAITS IN RICE
Florentina Kusmiyati, Reeno Perfecta Gennio, Budi Adi Kristanto and Bagus Herwibawa

Universitas Diponegoro

Abstract

Rice is cultivated in more than 100 countries worldwide because half of the world^s population stand on rice as staple food. Understanding variability, heritability and correlation of segregating generation determines the success of rice improvement programs. The objective of the study was to asses genetic variability, heritability and correlation of F2 segregating generation for agronomic traits in rice. The research was done in Tembalang, Semarang - Central Java, Indonesia. The experiment was designed using completely randomized design. There were six different population, namely parental Gilirang (P1), parental Situ Patenggang (P2) and their F1 and F2 offspring genotypes. The measured character was agronomy traits. Results showed that the values of Phenotypic Coefficient of Variation (PCV) were higher than Genotypic Coefficient of Variation (GCV) for each trait. All traits showed high heritability except for 1000 grain weight. Correlation analysis revealed a positif and significant at (p < 0.01) relation between production per plant with number and length of panicle, total grain weight per panicle with number of total grain per panicle and number of filled grain per panicle, weight of filled grain per panicle with number of total grain per panicle and number of filled grain per panicle

Keywords: Rice, Variability, Heritability, Correlation, F2

Topic: Plant breeding and biotechnology