早熟抗稻瘟病籼型水稻不育系荣丰A的选育与利用

刘振荣, 柳武革, 王丰, 廖亦龙, 黄慧君, 符福鸿, 黄德娟, 朱满山
杂交水稻, 2006, 21(6): 17-18  DOI: 10.16267/j.cnki.1005-3956.2006.06.005;      追溯原文......本站官方QQ群:62473826
杂交水稻; 不育系; 荣丰A; 早熟; 抗稻瘟病; 选育
广东省农业科学院水稻研究所

荣丰A是广东省农科院水稻研究所用优ⅠB/博B的F4代优良株系与优ⅠA测交并连续回交转育而成的早熟抗稻瘟病籼型不育系,2005年10月通过广东省技术鉴定。荣丰A表现株型紧凑,不育性稳定,配合力强,抗稻瘟病,柱头外露率高,异交结实率高,对“九二○”敏感,易于繁制种。利用该不育系初步测配出杂交早稻荣优2号、荣优3号和荣优4号,在区试和试种中均比对照增产。

Breeding and Utilization of Indica CMS Line Rongfeng A with Early Maturity and Blast Resistance

LIU Zhen-rong, LIU Wu-ge, WANG Feng, LIAO Yi-long, HUANG Hui-jun, FU Fu-hong, HUANG De-juan, ZHU Man-shan
Hybrid Rice, 2006, 21(6): 17-18
hybrid rice; CMS line; Rongfeng A; early maturity; blast resistance; breeding
Rice Research Institute, Guangdong Academy of Agricultural Sciences

Rongfeng A,developed by crossing the selected F_4 lines of You I B/Bo B to You I A with the successive backcrossing method,is an early-maturing indica CMS line.It was technically certified in Guangdong Province in October,2005.It is characteristic of good plant type,stable and complete male sterility,good combining ability,good blast resistance,high stigma exsertion rate,high out-crossing rate,good sensitivity to GA3 and easiness for hybrid seed production.The early-maturing hybrid combinations Rongyou 2, Rongyou 3, Rongyou 4, derived from Rongfeng A , had a good performance in early maturity, high-yielding ability and disease resistance. In the regional trials and experimental productions, these combinations yielded higher than the check hybrids.


品种列表
  荣丰A
  荣丰B