Estimation Of The Genetic Parameters Of Eight Soybean Varieties In The Wasegi Village At Prafi District Manokwari Regency

Nouke L Mawikere

doi:10.25077/jijcs.2.2.72-78.2020

Abstract

This study aims to estimate genetic parameters including genetic diversity coefficient, phenotypic diversity coefficient, heritability value, and the correlation between the character of plants from eight soybean varieties. The research was conducted from August to December 2017, in the Wasafi Village of Prafi District, Manokwari Regency. The study was designed using Randomized Block Design (RBD) with 8 treatments of soybean varieties. Each treatment was repeated 4 times, to obtain 32 experimental units. The data obtained were analyzed using ANOVA and if it had a significant effect, it was further tested using the Duncan Multiple Range Test (DMRT) at the 95% level, through the Costat program. The results of ANOVA analysis were used to obtain Variable Partition values, Genetic Diversity Coefficient (GDC), Phenotype Diversity Coefficient (PDC), and Heritability. Correlations between characters were also analyzed using the Costat program. Estimation results of genetic parameters indicate that the characters selected for selection criteria are based on the value of GDC, PDC, and high heritability are number of branches, number of fertile books, number of filled pods, and number of total pods. The characters that show a positive correlation with the character of the results are plant height, number of trifoliate leaves, harvest age, number of filled pods, number of empty pods, total pods, and number of seeds per plant, while characters that show a negative correlation to a seed weight character are flowering age.

Highlights

Soybean production in Manokwari Regency, West Papua Province is still low compared to national production
The genetic parameters that can be used to determine the closeness of the correlation with the results are the coefficient of genetic diversity, the coefficient of phenotypic diversity, heritability, and the correlation between characters (Hapsari, 2014)
Based on the results of the study it can be concluded that estimation results of genetic parameters showed that the number of branches/plant, number of fertile nodes, seed weight/ plant, number of filled pods, number of empty pods, and total pods, had a high genetic diversity coefficient (GDC), while the number of trifoliate leaves. branches, number of fertile nodes, number of filled pods, number of empty pods, total pods, seed weight/plant, seed weight/plot, and seed weight/hectare, have a high coefficient phenotype diversity (PDC)

Summary

Introduction

Soybean production in Manokwari Regency, West Papua Province is still low compared to national production. The low productivity of soybeans influenced by genetic and environmental factors (Yuda et al, 2015). These two factors are often interacting and reflected in agronomic traits that produce highs and lows of yields. Based on data from the Directorate General of Food Crops, the Ministry of Agriculture until 2017 has released as many as 92 varieties of soybeans with high yields. The superiority of the variety has not been tested in several areas, including in Manokwari Regency. These superior varieties have different genetic abilities and are likely to give different phenotypic appearance when planted in different environments

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Conclusion