Construction and Practice of "Six-in-one" Breeding Technology System for Japonica Rice with High Quality and Disease Resistance in Huang-huai Region
LI Junzhou
WANG Shuyu
YIN Haiqing
JI Shengdong
WANG Shengxuan
ZHANG Xu
CHEN Nan
ZHAO Quanzhi
Abstract：Rice blast and poor appearance quality were the prominent factors that restricted the development of japonica rice in Huang-huai region.In order to solve the problem in breeding of rice varieties with good quality and disease resistance,breeding techniques for resistance to rice blast and good quality have been established.Breeding technique for resistance to rice blast was established by combining the molecular marker selection of main broad-spectrum rice blast resistance genes,artificial inoculation detection and multi-environment screening.Rice quality breeding technology was established by grain relative plumpness detection,which was the rapid monitor of grain-filling.On this basis," six-in-one" compound breeding technology system consisting of large population selection in early generations,multi-environment screening,physiological index monitoring,molecular marker assisted selection,rice quality detection and evaluation of disease resistance in the field was constructed,and a series of new japonica rice varieties with good quality and disease resistance were bred,which innovated the ways to improve the quality and disease resistance of rice.
Keywords：Huang-huai rice regionjaponicarice blastrice qualitychalkinesssix-in-onebreeding technology system
Publication Date：2017-12-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 42-47 )