Breeding and Cultivation Techniques of New Semi-waxy Geng(Japonica)Rice Variety Jingengdao 399 with Good Taste
Zhu Ying
Zhu Junkai
Cao Jinxia
Zhu Yangang
Zhang Yanqiong
Ji Yiming
Ding Rui
Yang Dezhen
Liu Xiaobin
Abstract：Jingengdao 399 is a new variety of semi-glutinous late-maturing medium geng(japonica)rice with excellent taste,developed by Jiangsu Kingearth Seed Co.,Ltd.It was approved in Jiangsu Province in 2024,with the approval number of Sushendao 20240050.Its maternal parent is Huaidao No.18,which has undergone 60Co radiation mutation treatment,and its paternal parent is semi-glutinous material Ruanyu No.2.The average yield of Jingengdao 399 in two years of regional trials was 10 395.0 kg/hm2,which was 5.64%higher than that of the control Huaidao No.5.The whole milled rice rate was 73.1%,the gel consistency was 85 mm,the transparency was grade 2,and the amylose content was 11.6%.The quality indicators met the standards of DB32/T 4056-2021 Quality of Excellent Eating Quality Semi-glutinous Japonica Rice.It has great yield potential,wide adaptability,good palatability of rice,and strong comprehensive resistance.It is suitable for cultivation in the central Jiangsu region and the hilly areas of Nanjing,Zhenjiang and Yangzhou in Jiangsu Province.
Keywords：Semi glutinousLate-maturing mediumjaponicariceRiceNew variety
Publication Date：2026-02-28
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：4( 60-62,67 )