RESULTS OF PURIFICATION OF CHAM DAO RICE VARIETY FOR PRODUCTIONIN MUONG LA DISTRICT, SON LA PROVINCE

Abstract

The study on purification the local colored rice variety Cham Dao for production in Muong La district, Son La province was carried out from 2020 to 2022 according to the TCVN 12181:2018. In 2020, the evaluation and selection of G₀ starting materials selected 122 individuals with the typical traits of the Cham Dao variety. In 2021, these 122 individuals were grown separately into 122 different lines for evaluation and selection in the G₁ generation and 46 lines were selected. In 2022, 30 selected lines in the G₁ generation were taken to continue evaluating in the G₂ generation. The results were 11 G₂ lines of Cham Dao rice (Son La) mixed with a mass of 400 kg of super-original seeds that met the QCVN 01-54:2011/BNNPTNT.