HomeInternational Rice Research Notesvol. 23 no. 3 (1998)

Genetic Variability and Path Analysis in Rice Grown in Saline Soil

O. M. Gonzales | R Ramirez

Discipline: Agriculture, Soil Management, Crop Management

 

Abstract:

Our study aimed to examine genetic variability, heritability, and correlation coefficients among different characters when rice varieties were grown under saline conditions. We estimated the genetic parameters of seven quantitative characters in 20 rice genotypes grown under saline conditions. The experiment was laid out in a randomized block design and replicated three times during 1995-96 on saline soils (4-5 dS m-1) at the Rice Research Station “Jucarito,” Granma Province, Cuba. Hills were spaced 20 x 10 cm, with a single seedling hill-1. Observations were recorded on five randomly selected plants replication–1. The mean, standard deviation, phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV), broad-sense heritability (h2), and genetic advance as a percentage of mean (GA%) were calculated for seven traits. Path coefficient analysis was used to partition the genotypic correlation coefficient into direct and indirect effects.